微信APP支付-JAVA

上篇写的支付宝,这篇肯定是微信的,希望能帮到大家,Luck!

重点

  • 微信官方提供的有Maven的工具库,据说可以Easy Use!坑!!!(也可能是我用的不好,各种不通。。)

  • 下载微信官方接入demo,根据自己所需要的模块接入

  • 统一下单处,我们需要签两次名,签名规则代码官方demo和我下方的代码里有,第一次:向微信提交下单请求,下单成功,微信返回的参数里有个签名,app支付用的签名不是他,不是他,不是他。。。。需要自己根据微信返回的数据再次生成签名给app(第二次),具体逻辑和步骤,读下我下面提供的代码就清楚了
  • 收到支付成功回调并业务处理成功一定要向微信返回字符串:
<xml>

  <return_code>return_code>
  <return_msg>return_msg>
xml>
  • MWXPayUtil为各个支付模块入口,WXPayController为回调入口

官方目录:
微信APP支付-JAVA_第1张图片
主要看README.md就好了,各模块接入测试在TestWXPay.java 中

下面是我的使用目录
微信APP支付-JAVA_第2张图片

废话不多说,上代码:
IWXPayDomain:

package com.hakj.express.utils.wxpayutils.wxp;

/**
 * 域名管理,实现主备域名自动切换
 */
public abstract interface IWXPayDomain {
    /**
     * 上报域名网络状况
     * @param domain 域名。 比如:api.mch.weixin.qq.com
     * @param elapsedTimeMillis 耗时
     * @param ex 网络请求中出现的异常。
     *           null表示没有异常
     *           ConnectTimeoutException,表示建立网络连接异常
     *           UnknownHostException, 表示dns解析异常
     */
    abstract void report(final String domain, long elapsedTimeMillis, final Exception ex);

    /**
     * 获取域名
     * @param config 配置
     * @return 域名
     */
    abstract DomainInfo getDomain(final WXPayConfig config);

    static class DomainInfo{
        public String domain;       //域名
        public boolean primaryDomain;     //该域名是否为主域名。例如:api.mch.weixin.qq.com为主域名
        public DomainInfo(String domain, boolean primaryDomain) {
            this.domain = domain;
            this.primaryDomain = primaryDomain;
        }

        @Override
        public String toString() {
            return "DomainInfo{" +
                    "domain='" + domain + '\'' +
                    ", primaryDomain=" + primaryDomain +
                    '}';
        }
    }

}

WXPay:

package com.hakj.express.utils.wxpayutils.wxp;

import com.hakj.express.utils.wxpayutils.WXPayConfigImpl;
import com.hakj.express.utils.wxpayutils.wxp.WXPayConstants.SignType;

import java.util.HashMap;
import java.util.Map;

public class WXPay {

    private WXPayConfig config;
    private WXPayConstants.SignType signType;
    private boolean autoReport;
    private boolean useSandbox;
    private String notifyUrl;
    private WXPayRequest wxPayRequest;

    public WXPay(final WXPayConfig config) throws Exception {
        this(config, null, true, false);
    }

    public WXPay(final WXPayConfig config, final boolean autoReport) throws Exception {
        this(config, null, autoReport, false);
    }


    public WXPay(final WXPayConfig config, final boolean autoReport, final boolean useSandbox) throws Exception {
        this(config, null, autoReport, useSandbox);
    }

    public WXPay(final WXPayConfig config, final String notifyUrl) throws Exception {
        this(config, notifyUrl, true, false);
    }

    public WXPay(final WXPayConfig config, final String notifyUrl, final boolean autoReport) throws Exception {
        this(config, notifyUrl, autoReport, false);
    }

    public WXPay(final WXPayConfig config, final String notifyUrl, final boolean autoReport, final boolean useSandbox) throws Exception {
        this.config = config;
        this.notifyUrl = notifyUrl;
        this.autoReport = autoReport;
        this.useSandbox = useSandbox;
        if (useSandbox) {
            this.signType = SignType.MD5; // 沙箱环境
        } else {
//            this.signType = SignType.HMACSHA256;
            this.signType = SignType.MD5;
        }
        this.wxPayRequest = new WXPayRequest(config);
    }

    private void checkWXPayConfig() throws Exception {
        if (this.config == null) {
            throw new Exception("config is null");
        }
        if (this.config.getAppID() == null || this.config.getAppID().trim().length() == 0) {
            throw new Exception("appid in config is empty");
        }
        if (this.config.getMchID() == null || this.config.getMchID().trim().length() == 0) {
            throw new Exception("appid in config is empty");
        }
        if (this.config.getCertStream() == null) {
            throw new Exception("cert stream in config is empty");
        }
//        if (this.config.getPrimaryDomain() == null || this.config.getPrimaryDomain().trim().length() == 0) {
//            throw new Exception("primary domain in config is empty");
//        }
//
//        // todo 海外就填两个相同的? 下面的逻辑待考虑
//        if (this.config.getAlternateDomain() == null || this.config.getAlternateDomain().trim().length() == 0) {
//            throw new Exception("alternate domain in config is empty");
//        }
        if (this.config.getWXPayDomain() == null) {
            throw new Exception("config.getWXPayDomain() is null");
        }

        if (this.config.getHttpConnectTimeoutMs() < 10) {
            throw new Exception("http connect timeout is too small");
        }
        if (this.config.getHttpReadTimeoutMs() < 10) {
            throw new Exception("http read timeout is too small");
        }

    }

    /**
     * 向 Map 中添加 appid、mch_id、nonce_str、sign_type、sign 
* 该函数适用于商户适用于统一下单等接口,不适用于红包、代金券接口 * * @param reqData * @return * @throws Exception */
public Map fillRequestData(Map reqData) throws Exception { reqData.put("appid", config.getAppID()); reqData.put("mch_id", config.getMchID()); reqData.put("nonce_str", WXPayUtil.generateUUID()); if (SignType.MD5.equals(this.signType)) { reqData.put("sign_type", WXPayConstants.MD5); } else if (SignType.HMACSHA256.equals(this.signType)) { reqData.put("sign_type", WXPayConstants.HMACSHA256); } reqData.put("sign", WXPayUtil.generateSignature(reqData, config.getKey(), this.signType)); return reqData; } /** * 判断xml数据的sign是否有效,必须包含sign字段,否则返回false。 * * @param reqData 向wxpay post的请求数据 * @return 签名是否有效 * @throws Exception */ public boolean isResponseSignatureValid(Map reqData) throws Exception { // 返回数据的签名方式和请求中给定的签名方式是一致的 return WXPayUtil.isSignatureValid(reqData, this.config.getKey(), this.signType); } /** * 判断支付结果通知中的sign是否有效 * * @param reqData 向wxpay post的请求数据 * @return 签名是否有效 * @throws Exception */ public boolean isPayResultNotifySignatureValid(Map reqData) throws Exception { String signTypeInData = reqData.get(WXPayConstants.FIELD_SIGN_TYPE); SignType signType; if (signTypeInData == null) { signType = SignType.MD5; } else { signTypeInData = signTypeInData.trim(); if (signTypeInData.length() == 0) { signType = SignType.MD5; } else if (WXPayConstants.MD5.equals(signTypeInData)) { signType = SignType.MD5; } else if (WXPayConstants.HMACSHA256.equals(signTypeInData)) { signType = SignType.HMACSHA256; } else { throw new Exception(String.format("Unsupported sign_type: %s", signTypeInData)); } } return WXPayUtil.isSignatureValid(reqData, this.config.getKey(), signType); } /** * 不需要证书的请求 * * @param urlSuffix String * @param reqData 向wxpay post的请求数据 * @param connectTimeoutMs 超时时间,单位是毫秒 * @param readTimeoutMs 超时时间,单位是毫秒 * @return API返回数据 * @throws Exception */ public String requestWithoutCert(String urlSuffix, Map reqData, int connectTimeoutMs, int readTimeoutMs) throws Exception { String msgUUID = reqData.get("nonce_str"); String reqBody = WXPayUtil.mapToXml(reqData); String resp = this.wxPayRequest.requestWithoutCert(urlSuffix, msgUUID, reqBody, connectTimeoutMs, readTimeoutMs, autoReport); return resp; } /** * 需要证书的请求 * * @param urlSuffix String * @param reqData 向wxpay post的请求数据 Map * @param connectTimeoutMs 超时时间,单位是毫秒 * @param readTimeoutMs 超时时间,单位是毫秒 * @return API返回数据 * @throws Exception */ public String requestWithCert(String urlSuffix, Map reqData, int connectTimeoutMs, int readTimeoutMs) throws Exception { String msgUUID = reqData.get("nonce_str"); String reqBody = WXPayUtil.mapToXml(reqData); String resp = this.wxPayRequest.requestWithCert(urlSuffix, msgUUID, reqBody, connectTimeoutMs, readTimeoutMs, this.autoReport); return resp; } /** * 处理 HTTPS API返回数据,转换成Map对象。return_code为SUCCESS时,验证签名。 * * @param xmlStr API返回的XML格式数据 * @return Map类型数据 * @throws Exception */ public Map processResponseXml(String xmlStr) throws Exception { String RETURN_CODE = "return_code"; String return_code; Map respData = WXPayUtil.xmlToMap(xmlStr); if (respData.containsKey(RETURN_CODE)) { return_code = respData.get(RETURN_CODE); } else { throw new Exception(String.format("No `return_code` in XML: %s", xmlStr)); } if (return_code.equals(WXPayConstants.FAIL)) { return respData; } else if (return_code.equals(WXPayConstants.SUCCESS)) { if (this.isResponseSignatureValid(respData)) { return respData; } else { throw new Exception(String.format("Invalid sign value in XML: %s", xmlStr)); } } else { throw new Exception(String.format("return_code value %s is invalid in XML: %s", return_code, xmlStr)); } } /** * 作用:提交刷卡支付
* 场景:刷卡支付 * * @param reqData 向wxpay post的请求数据 * @return API返回数据 * @throws Exception */
public Map microPay(Map reqData) throws Exception { return this.microPay(reqData, this.config.getHttpConnectTimeoutMs(), this.config.getHttpReadTimeoutMs()); } /** * 作用:提交刷卡支付
* 场景:刷卡支付 * * @param reqData 向wxpay post的请求数据 * @param connectTimeoutMs 连接超时时间,单位是毫秒 * @param readTimeoutMs 读超时时间,单位是毫秒 * @return API返回数据 * @throws Exception */
public Map microPay(Map reqData, int connectTimeoutMs, int readTimeoutMs) throws Exception { String url; if (this.useSandbox) { url = WXPayConstants.SANDBOX_MICROPAY_URL_SUFFIX; } else { url = WXPayConstants.MICROPAY_URL_SUFFIX; } String respXml = this.requestWithoutCert(url, this.fillRequestData(reqData), connectTimeoutMs, readTimeoutMs); return this.processResponseXml(respXml); } /** * 提交刷卡支付,针对软POS,尽可能做成功 * 内置重试机制,最多60s * * @param reqData * @return * @throws Exception */ public Map microPayWithPos(Map reqData) throws Exception { return this.microPayWithPos(reqData, this.config.getHttpConnectTimeoutMs()); } /** * 提交刷卡支付,针对软POS,尽可能做成功 * 内置重试机制,最多60s * * @param reqData * @param connectTimeoutMs * @return * @throws Exception */ public Map microPayWithPos(Map reqData, int connectTimeoutMs) throws Exception { int remainingTimeMs = 60 * 1000; long startTimestampMs = 0; Map lastResult = null; Exception lastException = null; while (true) { startTimestampMs = WXPayUtil.getCurrentTimestampMs(); int readTimeoutMs = remainingTimeMs - connectTimeoutMs; if (readTimeoutMs > 1000) { try { lastResult = this.microPay(reqData, connectTimeoutMs, readTimeoutMs); String returnCode = lastResult.get("return_code"); if (returnCode.equals("SUCCESS")) { String resultCode = lastResult.get("result_code"); String errCode = lastResult.get("err_code"); if (resultCode.equals("SUCCESS")) { break; } else { // 看错误码,若支付结果未知,则重试提交刷卡支付 if (errCode.equals("SYSTEMERROR") || errCode.equals("BANKERROR") || errCode.equals("USERPAYING")) { remainingTimeMs = remainingTimeMs - (int) (WXPayUtil.getCurrentTimestampMs() - startTimestampMs); if (remainingTimeMs <= 100) { break; } else { WXPayUtil.getLogger().info("microPayWithPos: try micropay again"); if (remainingTimeMs > 5 * 1000) { Thread.sleep(5 * 1000); } else { Thread.sleep(1 * 1000); } continue; } } else { break; } } } else { break; } } catch (Exception ex) { lastResult = null; lastException = ex; } } else { break; } } if (lastResult == null) { throw lastException; } else { return lastResult; } } /** * 作用:统一下单
* 场景:公共号支付、扫码支付、APP支付 * * @param reqData 向wxpay post的请求数据 * @return API返回数据 * @throws Exception */
public Map unifiedOrder(Map reqData) throws Exception { return this.unifiedOrder(reqData, config.getHttpConnectTimeoutMs(), this.config.getHttpReadTimeoutMs()); } /** * 作用:统一下单
* 场景:公共号支付、扫码支付、APP支付 * * @param reqData 向wxpay post的请求数据 * @param connectTimeoutMs 连接超时时间,单位是毫秒 * @param readTimeoutMs 读超时时间,单位是毫秒 * @return API返回数据 * @throws Exception */
public Map unifiedOrder(Map reqData, int connectTimeoutMs, int readTimeoutMs) throws Exception { String url; if (this.useSandbox) { url = WXPayConstants.SANDBOX_UNIFIEDORDER_URL_SUFFIX; } else { url = WXPayConstants.UNIFIEDORDER_URL_SUFFIX; } // if (this.notifyUrl != null) { reqData.put("notify_url", WXPayConfigImpl.NOTIFY_URL); // } String respXml = this.requestWithoutCert(url, this.fillRequestData(reqData), connectTimeoutMs, readTimeoutMs); return this.processResponseXml(respXml); } /** * 作用:提现
* 场景:公共号支付、扫码支付、APP支付 * * @param reqData 向wxpay post的请求数据 * @return API返回数据 */
public Map repay(Map reqData) throws Exception { String url; url = WXPayConstants.REPAY_URL; String respXml = this.requestWithCert(url, this.fillRequestData(reqData), config.getHttpConnectTimeoutMs(), this.config.getHttpReadTimeoutMs()); return this.processResponseXml(respXml); } /** * 作用:查询订单
* 场景:刷卡支付、公共号支付、扫码支付、APP支付 * * @param reqData 向wxpay post的请求数据 * @return API返回数据 * @throws Exception */
public Map orderQuery(Map reqData) throws Exception { return this.orderQuery(reqData, config.getHttpConnectTimeoutMs(), this.config.getHttpReadTimeoutMs()); } /** * 作用:查询订单
* 场景:刷卡支付、公共号支付、扫码支付、APP支付 * * @param reqData 向wxpay post的请求数据 int * @param connectTimeoutMs 连接超时时间,单位是毫秒 * @param readTimeoutMs 读超时时间,单位是毫秒 * @return API返回数据 * @throws Exception */
public Map orderQuery(Map reqData, int connectTimeoutMs, int readTimeoutMs) throws Exception { String url; if (this.useSandbox) { url = WXPayConstants.SANDBOX_ORDERQUERY_URL_SUFFIX; } else { url = WXPayConstants.ORDERQUERY_URL_SUFFIX; } String respXml = this.requestWithoutCert(url, this.fillRequestData(reqData), connectTimeoutMs, readTimeoutMs); return this.processResponseXml(respXml); } /** * 作用:撤销订单
* 场景:刷卡支付 * * @param reqData 向wxpay post的请求数据 * @return API返回数据 * @throws Exception */
public Map reverse(Map reqData) throws Exception { return this.reverse(reqData, config.getHttpConnectTimeoutMs(), this.config.getHttpReadTimeoutMs()); } /** * 作用:撤销订单
* 场景:刷卡支付
* 其他:需要证书 * * @param reqData 向wxpay post的请求数据 * @param connectTimeoutMs 连接超时时间,单位是毫秒 * @param readTimeoutMs 读超时时间,单位是毫秒 * @return API返回数据 * @throws Exception */
public Map reverse(Map reqData, int connectTimeoutMs, int readTimeoutMs) throws Exception { String url; if (this.useSandbox) { url = WXPayConstants.SANDBOX_REVERSE_URL_SUFFIX; } else { url = WXPayConstants.REVERSE_URL_SUFFIX; } String respXml = this.requestWithCert(url, this.fillRequestData(reqData), connectTimeoutMs, readTimeoutMs); return this.processResponseXml(respXml); } /** * 作用:关闭订单
* 场景:公共号支付、扫码支付、APP支付 * * @param reqData 向wxpay post的请求数据 * @return API返回数据 * @throws Exception */
public Map closeOrder(Map reqData) throws Exception { return this.closeOrder(reqData, config.getHttpConnectTimeoutMs(), this.config.getHttpReadTimeoutMs()); } /** * 作用:关闭订单
* 场景:公共号支付、扫码支付、APP支付 * * @param reqData 向wxpay post的请求数据 * @param connectTimeoutMs 连接超时时间,单位是毫秒 * @param readTimeoutMs 读超时时间,单位是毫秒 * @return API返回数据 * @throws Exception */
public Map closeOrder(Map reqData, int connectTimeoutMs, int readTimeoutMs) throws Exception { String url; if (this.useSandbox) { url = WXPayConstants.SANDBOX_CLOSEORDER_URL_SUFFIX; } else { url = WXPayConstants.CLOSEORDER_URL_SUFFIX; } String respXml = this.requestWithoutCert(url, this.fillRequestData(reqData), connectTimeoutMs, readTimeoutMs); return this.processResponseXml(respXml); } /** * 作用:申请退款
* 场景:刷卡支付、公共号支付、扫码支付、APP支付 * * @param reqData 向wxpay post的请求数据 * @return API返回数据 * @throws Exception */
public Map refund(Map reqData) throws Exception { return this.refund(reqData, this.config.getHttpConnectTimeoutMs(), this.config.getHttpReadTimeoutMs()); } /** * 作用:申请退款
* 场景:刷卡支付、公共号支付、扫码支付、APP支付
* 其他:需要证书 * * @param reqData 向wxpay post的请求数据 * @param connectTimeoutMs 连接超时时间,单位是毫秒 * @param readTimeoutMs 读超时时间,单位是毫秒 * @return API返回数据 * @throws Exception */
public Map refund(Map reqData, int connectTimeoutMs, int readTimeoutMs) throws Exception { String url; if (this.useSandbox) { url = WXPayConstants.SANDBOX_REFUND_URL_SUFFIX; } else { url = WXPayConstants.REFUND_URL_SUFFIX; } String respXml = this.requestWithCert(url, this.fillRequestData(reqData), connectTimeoutMs, readTimeoutMs); return this.processResponseXml(respXml); } /** * 作用:退款查询
* 场景:刷卡支付、公共号支付、扫码支付、APP支付 * * @param reqData 向wxpay post的请求数据 * @return API返回数据 * @throws Exception */
public Map refundQuery(Map reqData) throws Exception { return this.refundQuery(reqData, this.config.getHttpConnectTimeoutMs(), this.config.getHttpReadTimeoutMs()); } /** * 作用:退款查询
* 场景:刷卡支付、公共号支付、扫码支付、APP支付 * * @param reqData 向wxpay post的请求数据 * @param connectTimeoutMs 连接超时时间,单位是毫秒 * @param readTimeoutMs 读超时时间,单位是毫秒 * @return API返回数据 * @throws Exception */
public Map refundQuery(Map reqData, int connectTimeoutMs, int readTimeoutMs) throws Exception { String url; if (this.useSandbox) { url = WXPayConstants.SANDBOX_REFUNDQUERY_URL_SUFFIX; } else { url = WXPayConstants.REFUNDQUERY_URL_SUFFIX; } String respXml = this.requestWithoutCert(url, this.fillRequestData(reqData), connectTimeoutMs, readTimeoutMs); return this.processResponseXml(respXml); } /** * 作用:对账单下载(成功时返回对账单数据,失败时返回XML格式数据)
* 场景:刷卡支付、公共号支付、扫码支付、APP支付 * * @param reqData 向wxpay post的请求数据 * @return API返回数据 * @throws Exception */
public Map downloadBill(Map reqData) throws Exception { return this.downloadBill(reqData, this.config.getHttpConnectTimeoutMs(), this.config.getHttpReadTimeoutMs()); } /** * 作用:对账单下载
* 场景:刷卡支付、公共号支付、扫码支付、APP支付
* 其他:无论是否成功都返回Map。若成功,返回的Map中含有return_code、return_msg、data, * 其中return_code为`SUCCESS`,data为对账单数据。 * * @param reqData 向wxpay post的请求数据 * @param connectTimeoutMs 连接超时时间,单位是毫秒 * @param readTimeoutMs 读超时时间,单位是毫秒 * @return 经过封装的API返回数据 * @throws Exception */
public Map downloadBill(Map reqData, int connectTimeoutMs, int readTimeoutMs) throws Exception { String url; if (this.useSandbox) { url = WXPayConstants.SANDBOX_DOWNLOADBILL_URL_SUFFIX; } else { url = WXPayConstants.DOWNLOADBILL_URL_SUFFIX; } String respStr = this.requestWithoutCert(url, this.fillRequestData(reqData), connectTimeoutMs, readTimeoutMs).trim(); Map ret; // 出现错误,返回XML数据 if (respStr.indexOf("<") == 0) { ret = WXPayUtil.xmlToMap(respStr); } else { // 正常返回csv数据 ret = new HashMap(); ret.put("return_code", WXPayConstants.SUCCESS); ret.put("return_msg", "ok"); ret.put("data", respStr); } return ret; } /** * 作用:交易保障
* 场景:刷卡支付、公共号支付、扫码支付、APP支付 * * @param reqData 向wxpay post的请求数据 * @return API返回数据 * @throws Exception */
public Map report(Map reqData) throws Exception { return this.report(reqData, this.config.getHttpConnectTimeoutMs(), this.config.getHttpReadTimeoutMs()); } /** * 作用:交易保障
* 场景:刷卡支付、公共号支付、扫码支付、APP支付 * * @param reqData 向wxpay post的请求数据 * @param connectTimeoutMs 连接超时时间,单位是毫秒 * @param readTimeoutMs 读超时时间,单位是毫秒 * @return API返回数据 * @throws Exception */
public Map report(Map reqData, int connectTimeoutMs, int readTimeoutMs) throws Exception { String url; if (this.useSandbox) { url = WXPayConstants.SANDBOX_REPORT_URL_SUFFIX; } else { url = WXPayConstants.REPORT_URL_SUFFIX; } String respXml = this.requestWithoutCert(url, this.fillRequestData(reqData), connectTimeoutMs, readTimeoutMs); return WXPayUtil.xmlToMap(respXml); } /** * 作用:转换短链接
* 场景:刷卡支付、扫码支付 * * @param reqData 向wxpay post的请求数据 * @return API返回数据 * @throws Exception */
public Map shortUrl(Map reqData) throws Exception { return this.shortUrl(reqData, this.config.getHttpConnectTimeoutMs(), this.config.getHttpReadTimeoutMs()); } /** * 作用:转换短链接
* 场景:刷卡支付、扫码支付 * * @param reqData 向wxpay post的请求数据 * @return API返回数据 * @throws Exception */
public Map shortUrl(Map reqData, int connectTimeoutMs, int readTimeoutMs) throws Exception { String url; if (this.useSandbox) { url = WXPayConstants.SANDBOX_SHORTURL_URL_SUFFIX; } else { url = WXPayConstants.SHORTURL_URL_SUFFIX; } String respXml = this.requestWithoutCert(url, this.fillRequestData(reqData), connectTimeoutMs, readTimeoutMs); return this.processResponseXml(respXml); } /** * 作用:授权码查询OPENID接口
* 场景:刷卡支付 * * @param reqData 向wxpay post的请求数据 * @return API返回数据 * @throws Exception */
public Map authCodeToOpenid(Map reqData) throws Exception { return this.authCodeToOpenid(reqData, this.config.getHttpConnectTimeoutMs(), this.config.getHttpReadTimeoutMs()); } /** * 作用:授权码查询OPENID接口
* 场景:刷卡支付 * * @param reqData 向wxpay post的请求数据 * @param connectTimeoutMs 连接超时时间,单位是毫秒 * @param readTimeoutMs 读超时时间,单位是毫秒 * @return API返回数据 * @throws Exception */
public Map authCodeToOpenid(Map reqData, int connectTimeoutMs, int readTimeoutMs) throws Exception { String url; if (this.useSandbox) { url = WXPayConstants.SANDBOX_AUTHCODETOOPENID_URL_SUFFIX; } else { url = WXPayConstants.AUTHCODETOOPENID_URL_SUFFIX; } String respXml = this.requestWithoutCert(url, this.fillRequestData(reqData), connectTimeoutMs, readTimeoutMs); return this.processResponseXml(respXml); } } // end class

WXPayConfig:

package com.hakj.express.utils.wxpayutils.wxp;

import java.io.InputStream;

public abstract class WXPayConfig {



    /**
     * 获取 App ID
     *
     * @return App ID
     */
    protected abstract String getAppID();


    /**
     * 获取 Mch ID
     *
     * @return Mch ID
     */
    protected abstract String getMchID();


    /**
     * 获取 API 密钥
     *
     * @return API密钥
     */
    public abstract String getKey();


    /**
     * 获取商户证书内容
     *
     * @return 商户证书内容
     */
    public abstract InputStream getCertStream();

    /**
     * HTTP(S) 连接超时时间,单位毫秒
     *
     * @return
     */
    public int getHttpConnectTimeoutMs() {
        return 6*1000;
    }

    /**
     * HTTP(S) 读数据超时时间,单位毫秒
     *
     * @return
     */
    public int getHttpReadTimeoutMs() {
        return 8*1000;
    }

    /**
     * 获取WXPayDomain, 用于多域名容灾自动切换
     * @return
     */
    protected abstract IWXPayDomain getWXPayDomain();

    /**
     * 是否自动上报。
     * 若要关闭自动上报,子类中实现该函数返回 false 即可。
     *
     * @return
     */
    public boolean shouldAutoReport() {
        return true;
    }

    /**
     * 进行健康上报的线程的数量
     *
     * @return
     */
    public int getReportWorkerNum() {
        return 6;
    }


    /**
     * 健康上报缓存消息的最大数量。会有线程去独立上报
     * 粗略计算:加入一条消息200B,10000消息占用空间 2000 KB,约为2MB,可以接受
     *
     * @return
     */
    public int getReportQueueMaxSize() {
        return 10000;
    }

    /**
     * 批量上报,一次最多上报多个数据
     *
     * @return
     */
    public int getReportBatchSize() {
        return 10;
    }

}

WXPayConstants:

package com.hakj.express.utils.wxpayutils.wxp;

/**
 * 常量
 */
public class WXPayConstants {

    public enum SignType {
        MD5, HMACSHA256
    }

    public static final String DOMAIN_API = "api.mch.weixin.qq.com";
    public static final String DOMAIN_API2 = "api2.mch.weixin.qq.com";
    public static final String DOMAIN_APIHK = "apihk.mch.weixin.qq.com";
    public static final String DOMAIN_APIUS = "apius.mch.weixin.qq.com";


    public static final String FAIL = "FAIL";
    public static final String SUCCESS = "SUCCESS";
    public static final String HMACSHA256 = "HMAC-SHA256";
    public static final String MD5 = "MD5";

    public static final String FIELD_SIGN = "sign";
    public static final String FIELD_SIGN_TYPE = "sign_type";

    public static final String MICROPAY_URL_SUFFIX = "/pay/micropay";
    public static final String UNIFIEDORDER_URL_SUFFIX = "/pay/unifiedorder";
    public static final String ORDERQUERY_URL_SUFFIX = "/pay/orderquery";
    public static final String REVERSE_URL_SUFFIX = "/secapi/pay/reverse";
    public static final String CLOSEORDER_URL_SUFFIX = "/pay/closeorder";
    public static final String REFUND_URL_SUFFIX = "/secapi/pay/refund";
    public static final String REFUNDQUERY_URL_SUFFIX = "/pay/refundquery";
    public static final String DOWNLOADBILL_URL_SUFFIX = "/pay/downloadbill";
    public static final String REPORT_URL_SUFFIX = "/payitil/report";
    public static final String SHORTURL_URL_SUFFIX = "/tools/shorturl";
    public static final String AUTHCODETOOPENID_URL_SUFFIX = "/tools/authcodetoopenid";
    //退款
    public static final String REPAY_URL = "/mmpaymkttransfers/promotion/transfers";

    // sandbox
    public static final String SANDBOX_MICROPAY_URL_SUFFIX = "/sandboxnew/pay/micropay";
    public static final String SANDBOX_UNIFIEDORDER_URL_SUFFIX = "/sandboxnew/pay/unifiedorder";
    public static final String SANDBOX_ORDERQUERY_URL_SUFFIX = "/sandboxnew/pay/orderquery";
    public static final String SANDBOX_REVERSE_URL_SUFFIX = "/sandboxnew/secapi/pay/reverse";
    public static final String SANDBOX_CLOSEORDER_URL_SUFFIX = "/sandboxnew/pay/closeorder";
    public static final String SANDBOX_REFUND_URL_SUFFIX = "/sandboxnew/secapi/pay/refund";
    public static final String SANDBOX_REFUNDQUERY_URL_SUFFIX = "/sandboxnew/pay/refundquery";
    public static final String SANDBOX_DOWNLOADBILL_URL_SUFFIX = "/sandboxnew/pay/downloadbill";
    public static final String SANDBOX_REPORT_URL_SUFFIX = "/sandboxnew/payitil/report";
    public static final String SANDBOX_SHORTURL_URL_SUFFIX = "/sandboxnew/tools/shorturl";
    public static final String SANDBOX_AUTHCODETOOPENID_URL_SUFFIX = "/sandboxnew/tools/authcodetoopenid";


}

WXPayDomainSimpleImpl:

package com.hakj.express.utils.wxpayutils.wxp;
import org.apache.http.conn.ConnectTimeoutException;

import java.net.UnknownHostException;
import java.util.HashMap;
import java.util.Map;

/**
 * Created by blaketang on 2017/6/16.
 */
public class WXPayDomainSimpleImpl implements IWXPayDomain {
    private WXPayDomainSimpleImpl(){}
    private static class WxpayDomainHolder{
        private static IWXPayDomain holder = new WXPayDomainSimpleImpl();
    }
    public static IWXPayDomain instance(){
        return WxpayDomainHolder.holder;
    }

    public synchronized void report(final String domain, long elapsedTimeMillis, final Exception ex) {
        DomainStatics info = domainData.get(domain);
        if(info == null){
            info = new DomainStatics(domain);
            domainData.put(domain, info);
        }

        if(ex == null){ //success
            if(info.succCount >= 2){    //continue succ, clear error count
                info.connectTimeoutCount = info.dnsErrorCount = info.otherErrorCount = 0;
            }else{
                ++info.succCount;
            }
        }else if(ex instanceof ConnectTimeoutException){
            info.succCount = info.dnsErrorCount = 0;
            ++info.connectTimeoutCount;
        }else if(ex instanceof UnknownHostException){
            info.succCount = 0;
            ++info.dnsErrorCount;
        }else{
            info.succCount = 0;
            ++info.otherErrorCount;
        }
    }

    public synchronized DomainInfo getDomain(final WXPayConfig config) {
        DomainStatics primaryDomain = domainData.get(WXPayConstants.DOMAIN_API);
        if(primaryDomain == null ||
                primaryDomain.isGood()) {
            return new DomainInfo(WXPayConstants.DOMAIN_API, true);
        }

        long now = System.currentTimeMillis();
        if(switchToAlternateDomainTime == 0){   //first switch
            switchToAlternateDomainTime = now;
            return new DomainInfo(WXPayConstants.DOMAIN_API2, false);
        }else if(now - switchToAlternateDomainTime < MIN_SWITCH_PRIMARY_MSEC){
            DomainStatics alternateDomain = domainData.get(WXPayConstants.DOMAIN_API2);
            if(alternateDomain == null ||
                alternateDomain.isGood() ||
                alternateDomain.badCount() < primaryDomain.badCount()){
                return new DomainInfo(WXPayConstants.DOMAIN_API2, false);
            }else{
                return new DomainInfo(WXPayConstants.DOMAIN_API, true);
            }
        }else{  //force switch back
            switchToAlternateDomainTime = 0;
            primaryDomain.resetCount();
            DomainStatics alternateDomain = domainData.get(WXPayConstants.DOMAIN_API2);
            if(alternateDomain != null)
                alternateDomain.resetCount();
            return new DomainInfo(WXPayConstants.DOMAIN_API, true);
        }
    }

    static class DomainStatics {
        final String domain;
        int succCount = 0;
        int connectTimeoutCount = 0;
        int dnsErrorCount =0;
        int otherErrorCount = 0;

        DomainStatics(String domain) {
            this.domain = domain;
        }
        void resetCount(){
            succCount = connectTimeoutCount = dnsErrorCount = otherErrorCount = 0;
        }
        boolean isGood(){ return connectTimeoutCount <= 2 && dnsErrorCount <= 2; }
        int badCount(){
            return connectTimeoutCount + dnsErrorCount * 5 + otherErrorCount / 4;
        }
    }
    private final int MIN_SWITCH_PRIMARY_MSEC = 3 * 60 * 1000;  //3 minutes
    private long switchToAlternateDomainTime = 0;
    private Map domainData = new HashMap();
}

WXPayReport:

package com.hakj.express.utils.wxpayutils.wxp;

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.config.RegistryBuilder;
import org.apache.http.conn.socket.ConnectionSocketFactory;
import org.apache.http.conn.socket.PlainConnectionSocketFactory;
import org.apache.http.conn.ssl.SSLConnectionSocketFactory;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.HttpClientBuilder;
import org.apache.http.impl.conn.BasicHttpClientConnectionManager;
import org.apache.http.util.EntityUtils;

import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.LinkedBlockingQueue;
import java.util.concurrent.ThreadFactory;

/**
 * 交易保障
 */
public class WXPayReport {

    public static class ReportInfo {

        /**
         * 布尔变量使用int。0为false, 1为true。
         */

        // 基本信息
        private String version = "v0";
        private String sdk = "wxpay java sdk v1.0";
        private String uuid;  // 交易的标识
        private long timestamp;   // 上报时的时间戳,单位秒
        private long elapsedTimeMillis; // 耗时,单位 毫秒

        // 针对主域名
        private String firstDomain;  // 第1次请求的域名
        private boolean primaryDomain; //是否主域名
        private int firstConnectTimeoutMillis;  // 第1次请求设置的连接超时时间,单位 毫秒
        private int firstReadTimeoutMillis;  // 第1次请求设置的读写超时时间,单位 毫秒
        private int firstHasDnsError;  // 第1次请求是否出现dns问题
        private int firstHasConnectTimeout; // 第1次请求是否出现连接超时
        private int firstHasReadTimeout; // 第1次请求是否出现连接超时

        public ReportInfo(String uuid, long timestamp, long elapsedTimeMillis, String firstDomain, boolean primaryDomain, int firstConnectTimeoutMillis, int firstReadTimeoutMillis, boolean firstHasDnsError, boolean firstHasConnectTimeout, boolean firstHasReadTimeout) {
            this.uuid = uuid;
            this.timestamp = timestamp;
            this.elapsedTimeMillis = elapsedTimeMillis;
            this.firstDomain = firstDomain;
            this.primaryDomain = primaryDomain;
            this.firstConnectTimeoutMillis = firstConnectTimeoutMillis;
            this.firstReadTimeoutMillis = firstReadTimeoutMillis;
            this.firstHasDnsError = firstHasDnsError?1:0;
            this.firstHasConnectTimeout = firstHasConnectTimeout?1:0;
            this.firstHasReadTimeout = firstHasReadTimeout?1:0;
         }

        @Override
        public String toString() {
            return "ReportInfo{" +
                    "version='" + version + '\'' +
                    ", sdk='" + sdk + '\'' +
                    ", uuid='" + uuid + '\'' +
                    ", timestamp=" + timestamp +
                    ", elapsedTimeMillis=" + elapsedTimeMillis +
                    ", firstDomain='" + firstDomain + '\'' +
                    ", primaryDomain=" + primaryDomain +
                    ", firstConnectTimeoutMillis=" + firstConnectTimeoutMillis +
                    ", firstReadTimeoutMillis=" + firstReadTimeoutMillis +
                    ", firstHasDnsError=" + firstHasDnsError +
                    ", firstHasConnectTimeout=" + firstHasConnectTimeout +
                    ", firstHasReadTimeout=" + firstHasReadTimeout +
                    '}';
        }

        /**
         * 转换成 csv 格式
         *
         * @return
         */
        public String toLineString(String key) {
            String separator = ",";
            Object[] objects = new Object[] {
                version, sdk, uuid, timestamp, elapsedTimeMillis,
                    firstDomain, primaryDomain, firstConnectTimeoutMillis, firstReadTimeoutMillis,
                    firstHasDnsError, firstHasConnectTimeout, firstHasReadTimeout
            };
            StringBuffer sb = new StringBuffer();
            for(Object obj: objects) {
                sb.append(obj).append(separator);
            }
            try {
                String sign = WXPayUtil.HMACSHA256(sb.toString(), key);
                sb.append(sign);
                return sb.toString();
            }
            catch (Exception ex) {
                return null;
            }

        }

    }

    private static final String REPORT_URL = "http://report.mch.weixin.qq.com/wxpay/report/default";
    // private static final String REPORT_URL = "http://127.0.0.1:5000/test";


    private static final int DEFAULT_CONNECT_TIMEOUT_MS = 6*1000;
    private static final int DEFAULT_READ_TIMEOUT_MS = 8*1000;

    private LinkedBlockingQueue reportMsgQueue = null;
    private WXPayConfig config;
    private ExecutorService executorService;

    private volatile static WXPayReport INSTANCE;

    private WXPayReport(final WXPayConfig config) {
        this.config = config;
        reportMsgQueue = new LinkedBlockingQueue(config.getReportQueueMaxSize());

        // 添加处理线程
        executorService = Executors.newFixedThreadPool(config.getReportWorkerNum(), new ThreadFactory() {
            public Thread newThread(Runnable r) {
                Thread t = Executors.defaultThreadFactory().newThread(r);
                t.setDaemon(true);
                return t;
            }
        });

        if (config.shouldAutoReport()) {
            WXPayUtil.getLogger().info("report worker num: {}", config.getReportWorkerNum());
            for (int i = 0; i < config.getReportWorkerNum(); ++i) {
                executorService.execute(new Runnable() {
                    public void run() {
                        while (true) {
                            // 先用 take 获取数据
                            try {
                                StringBuffer sb = new StringBuffer();
                                String firstMsg = reportMsgQueue.take();
                                WXPayUtil.getLogger().info("get first report msg: {}", firstMsg);
                                String msg = null;
                                sb.append(firstMsg); //会阻塞至有消息
                                int remainNum = config.getReportBatchSize() - 1;
                                for (int j=0; j"try get remain report msg");
                                    // msg = reportMsgQueue.poll();  // 不阻塞了
                                    msg = reportMsgQueue.take();
                                    WXPayUtil.getLogger().info("get remain report msg: {}", msg);
                                    if (msg == null) {
                                        break;
                                    }
                                    else {
                                        sb.append("\n");
                                        sb.append(msg);
                                    }
                                }
                                // 上报
                                WXPayReport.httpRequest(sb.toString(), DEFAULT_CONNECT_TIMEOUT_MS, DEFAULT_READ_TIMEOUT_MS);
                            }
                            catch (Exception ex) {
                                WXPayUtil.getLogger().warn("report fail. reason: {}", ex.getMessage());
                            }
                        }
                    }
                });
            }
        }

    }

    /**
     * 单例,双重校验,请在 JDK 1.5及更高版本中使用
     *
     * @param config
     * @return
     */
    public static WXPayReport getInstance(WXPayConfig config) {
        if (INSTANCE == null) {
            synchronized (WXPayReport.class) {
                if (INSTANCE == null) {
                    INSTANCE = new WXPayReport(config);
                }
            }
        }
        return INSTANCE;
    }

    public void report(String uuid, long elapsedTimeMillis,
                       String firstDomain, boolean primaryDomain, int firstConnectTimeoutMillis, int firstReadTimeoutMillis,
                       boolean firstHasDnsError, boolean firstHasConnectTimeout, boolean firstHasReadTimeout) {
        long currentTimestamp = WXPayUtil.getCurrentTimestamp();
        ReportInfo reportInfo = new ReportInfo(uuid, currentTimestamp, elapsedTimeMillis,
                firstDomain, primaryDomain, firstConnectTimeoutMillis, firstReadTimeoutMillis,
                firstHasDnsError, firstHasConnectTimeout, firstHasReadTimeout);
        String data = reportInfo.toLineString(config.getKey());
        WXPayUtil.getLogger().info("report {}", data);
        if (data != null) {
            reportMsgQueue.offer(data);
        }
    }


    @Deprecated
    private void reportSync(final String data) throws Exception {
        httpRequest(data, DEFAULT_CONNECT_TIMEOUT_MS, DEFAULT_READ_TIMEOUT_MS);
    }

    @Deprecated
    private void reportAsync(final String data) throws Exception {
        new Thread(new Runnable() {
            public void run() {
                try {
                    httpRequest(data, DEFAULT_CONNECT_TIMEOUT_MS, DEFAULT_READ_TIMEOUT_MS);
                }
                catch (Exception ex) {
                    WXPayUtil.getLogger().warn("report fail. reason: {}", ex.getMessage());
                }
            }
        }).start();
    }

    /**
     * http 请求
     * @param data
     * @param connectTimeoutMs
     * @param readTimeoutMs
     * @return
     * @throws Exception
     */
    private static String httpRequest(String data, int connectTimeoutMs, int readTimeoutMs) throws Exception{
        BasicHttpClientConnectionManager connManager;
        connManager = new BasicHttpClientConnectionManager(
                RegistryBuilder.create()
                        .register("http", PlainConnectionSocketFactory.getSocketFactory())
                        .register("https", SSLConnectionSocketFactory.getSocketFactory())
                        .build(),
                null,
                null,
                null
        );
        HttpClient httpClient = HttpClientBuilder.create()
                .setConnectionManager(connManager)
                .build();

        HttpPost httpPost = new HttpPost(REPORT_URL);

        RequestConfig requestConfig = RequestConfig.custom().setSocketTimeout(readTimeoutMs).setConnectTimeout(connectTimeoutMs).build();
        httpPost.setConfig(requestConfig);

        StringEntity postEntity = new StringEntity(data, "UTF-8");
        httpPost.addHeader("Content-Type", "text/xml");
        httpPost.addHeader("User-Agent", "wxpay sdk java v1.0 ");  // TODO: 很重要,用来检测 sdk 的使用情况,要不要加上商户信息?
        httpPost.setEntity(postEntity);

        HttpResponse httpResponse = httpClient.execute(httpPost);
        HttpEntity httpEntity = httpResponse.getEntity();
        return EntityUtils.toString(httpEntity, "UTF-8");
    }

}

WXPayRequest:

package com.hakj.express.utils.wxpayutils.wxp;

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.config.RegistryBuilder;
import org.apache.http.conn.ConnectTimeoutException;
import org.apache.http.conn.socket.ConnectionSocketFactory;
import org.apache.http.conn.socket.PlainConnectionSocketFactory;
import org.apache.http.conn.ssl.DefaultHostnameVerifier;
import org.apache.http.conn.ssl.SSLConnectionSocketFactory;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.HttpClientBuilder;
import org.apache.http.impl.conn.BasicHttpClientConnectionManager;
import org.apache.http.util.EntityUtils;

import javax.net.ssl.KeyManagerFactory;
import javax.net.ssl.SSLContext;
import java.io.InputStream;
import java.net.SocketTimeoutException;
import java.net.UnknownHostException;
import java.security.KeyStore;
import java.security.SecureRandom;

public class WXPayRequest {
    private WXPayConfig config;
    public WXPayRequest(WXPayConfig config) throws Exception{

        this.config = config;
    }

    /**
     * 请求,只请求一次,不做重试
     * @param domain
     * @param urlSuffix
     * @param uuid
     * @param data
     * @param connectTimeoutMs
     * @param readTimeoutMs
     * @param useCert 是否使用证书,针对退款、撤销等操作
     * @return
     * @throws Exception
     */
    private String requestOnce(final String domain, String urlSuffix, String uuid, String data, int connectTimeoutMs, int readTimeoutMs, boolean useCert) throws Exception {
        BasicHttpClientConnectionManager connManager;
        if (useCert) {
            // 证书
            char[] password = config.getMchID().toCharArray();
            InputStream certStream = config.getCertStream();
            KeyStore ks = KeyStore.getInstance("PKCS12");
            ks.load(certStream, password);

            // 实例化密钥库 & 初始化密钥工厂
            KeyManagerFactory kmf = KeyManagerFactory.getInstance(KeyManagerFactory.getDefaultAlgorithm());
            kmf.init(ks, password);

            // 创建 SSLContext
            SSLContext sslContext = SSLContext.getInstance("TLS");
            sslContext.init(kmf.getKeyManagers(), null, new SecureRandom());

            SSLConnectionSocketFactory sslConnectionSocketFactory = new SSLConnectionSocketFactory(
                    sslContext,
                    new String[]{"TLSv1"},
                    null,
                    new DefaultHostnameVerifier());

            connManager = new BasicHttpClientConnectionManager(
                    RegistryBuilder.create()
                            .register("http", PlainConnectionSocketFactory.getSocketFactory())
                            .register("https", sslConnectionSocketFactory)
                            .build(),
                    null,
                    null,
                    null
            );
        }
        else {
            connManager = new BasicHttpClientConnectionManager(
                    RegistryBuilder.create()
                            .register("http", PlainConnectionSocketFactory.getSocketFactory())
                            .register("https", SSLConnectionSocketFactory.getSocketFactory())
                            .build(),
                    null,
                    null,
                    null
            );
        }

        HttpClient httpClient = HttpClientBuilder.create()
                .setConnectionManager(connManager)
                .build();

        String url = "https://" + domain + urlSuffix;
        HttpPost httpPost = new HttpPost(url);

        RequestConfig requestConfig = RequestConfig.custom().setSocketTimeout(readTimeoutMs).setConnectTimeout(connectTimeoutMs).build();
        httpPost.setConfig(requestConfig);

        StringEntity postEntity = new StringEntity(data, "UTF-8");
        httpPost.addHeader("Content-Type", "text/xml");
        httpPost.addHeader("User-Agent", "wxpay sdk java v1.0 " + config.getMchID());  // TODO: 很重要,用来检测 sdk 的使用情况,要不要加上商户信息?
        httpPost.setEntity(postEntity);

        HttpResponse httpResponse = httpClient.execute(httpPost);
        HttpEntity httpEntity = httpResponse.getEntity();
        return EntityUtils.toString(httpEntity, "UTF-8");

    }


    private String request(String urlSuffix, String uuid, String data, int connectTimeoutMs, int readTimeoutMs, boolean useCert, boolean autoReport) throws Exception {
        Exception exception = null;
        long elapsedTimeMillis = 0;
        long startTimestampMs = WXPayUtil.getCurrentTimestampMs();
        boolean firstHasDnsErr = false;
        boolean firstHasConnectTimeout = false;
        boolean firstHasReadTimeout = false;
        IWXPayDomain.DomainInfo domainInfo = config.getWXPayDomain().getDomain(config);
        if(domainInfo == null){
            throw new Exception("WXPayConfig.getWXPayDomain().getDomain() is empty or null");
        }
        try {
            String result = requestOnce(domainInfo.domain, urlSuffix, uuid, data, connectTimeoutMs, readTimeoutMs, useCert);
            elapsedTimeMillis = WXPayUtil.getCurrentTimestampMs()-startTimestampMs;
            config.getWXPayDomain().report(domainInfo.domain, elapsedTimeMillis, null);
            WXPayReport.getInstance(config).report(
                    uuid,
                    elapsedTimeMillis,
                    domainInfo.domain,
                    domainInfo.primaryDomain,
                    connectTimeoutMs,
                    readTimeoutMs,
                    firstHasDnsErr,
                    firstHasConnectTimeout,
                    firstHasReadTimeout);
            return result;
        }
        catch (UnknownHostException ex) {  // dns 解析错误,或域名不存在
            exception = ex;
            firstHasDnsErr = true;
            elapsedTimeMillis = WXPayUtil.getCurrentTimestampMs()-startTimestampMs;
            WXPayUtil.getLogger().warn("UnknownHostException for domainInfo {}", domainInfo);
            WXPayReport.getInstance(config).report(
                    uuid,
                    elapsedTimeMillis,
                    domainInfo.domain,
                    domainInfo.primaryDomain,
                    connectTimeoutMs,
                    readTimeoutMs,
                    firstHasDnsErr,
                    firstHasConnectTimeout,
                    firstHasReadTimeout
            );
        }
        catch (ConnectTimeoutException ex) {
            exception = ex;
            firstHasConnectTimeout = true;
            elapsedTimeMillis = WXPayUtil.getCurrentTimestampMs()-startTimestampMs;
            WXPayUtil.getLogger().warn("connect timeout happened for domainInfo {}", domainInfo);
            WXPayReport.getInstance(config).report(
                    uuid,
                    elapsedTimeMillis,
                    domainInfo.domain,
                    domainInfo.primaryDomain,
                    connectTimeoutMs,
                    readTimeoutMs,
                    firstHasDnsErr,
                    firstHasConnectTimeout,
                    firstHasReadTimeout
            );
        }
        catch (SocketTimeoutException ex) {
            exception = ex;
            firstHasReadTimeout = true;
            elapsedTimeMillis = WXPayUtil.getCurrentTimestampMs()-startTimestampMs;
            WXPayUtil.getLogger().warn("timeout happened for domainInfo {}", domainInfo);
            WXPayReport.getInstance(config).report(
                    uuid,
                    elapsedTimeMillis,
                    domainInfo.domain,
                    domainInfo.primaryDomain,
                    connectTimeoutMs,
                    readTimeoutMs,
                    firstHasDnsErr,
                    firstHasConnectTimeout,
                    firstHasReadTimeout);
        }
        catch (Exception ex) {
            exception = ex;
            elapsedTimeMillis = WXPayUtil.getCurrentTimestampMs()-startTimestampMs;
            WXPayReport.getInstance(config).report(
                    uuid,
                    elapsedTimeMillis,
                    domainInfo.domain,
                    domainInfo.primaryDomain,
                    connectTimeoutMs,
                    readTimeoutMs,
                    firstHasDnsErr,
                    firstHasConnectTimeout,
                    firstHasReadTimeout);
        }
        config.getWXPayDomain().report(domainInfo.domain, elapsedTimeMillis, exception);
        throw exception;
    }


    /**
     * 可重试的,非双向认证的请求
     * @param urlSuffix
     * @param uuid
     * @param data
     * @return
     */
    public String requestWithoutCert(String urlSuffix, String uuid, String data, boolean autoReport) throws Exception {
        return this.request(urlSuffix, uuid, data, config.getHttpConnectTimeoutMs(), config.getHttpReadTimeoutMs(), false, autoReport);
        //return requestWithoutCert(urlSuffix, uuid, data, config.getHttpConnectTimeoutMs(), config.getHttpReadTimeoutMs(), autoReport);
    }

    /**
     * 可重试的,非双向认证的请求
     * @param urlSuffix
     * @param uuid
     * @param data
     * @param connectTimeoutMs
     * @param readTimeoutMs
     * @return
     */
    public String requestWithoutCert(String urlSuffix, String uuid, String data, int connectTimeoutMs, int readTimeoutMs,  boolean autoReport) throws Exception {
        return this.request(urlSuffix, uuid, data, connectTimeoutMs, readTimeoutMs, false, autoReport);

        /*
        String result;
        Exception exception;
        boolean shouldRetry = false;

        boolean useCert = false;
        try {
            result = requestOnce(domain, urlSuffix, uuid, data, connectTimeoutMs, readTimeoutMs, useCert);
            return result;
        }
        catch (UnknownHostException ex) {  // dns 解析错误,或域名不存在
            exception = ex;
            WXPayUtil.getLogger().warn("UnknownHostException for domain {}, try to use {}", domain, this.primaryDomain);
            shouldRetry = true;
        }
        catch (ConnectTimeoutException ex) {
            exception = ex;
            WXPayUtil.getLogger().warn("connect timeout happened for domain {}, try to use {}", domain, this.primaryDomain);
            shouldRetry = true;
        }
        catch (SocketTimeoutException ex) {
            exception = ex;
            shouldRetry = false;
        }
        catch (Exception ex) {
            exception = ex;
            shouldRetry = false;
        }

        if (shouldRetry) {
            result = requestOnce(this.primaryDomain, urlSuffix, uuid, data, connectTimeoutMs, readTimeoutMs, useCert);
            return result;
        }
        else {
            throw exception;
        }
        */
    }

    /**
     * 可重试的,双向认证的请求
     * @param urlSuffix
     * @param uuid
     * @param data
     * @return
     */
    public String requestWithCert(String urlSuffix, String uuid, String data, boolean autoReport) throws Exception {
        return this.request(urlSuffix, uuid, data, config.getHttpConnectTimeoutMs(), config.getHttpReadTimeoutMs(), true, autoReport);
        //return requestWithCert(urlSuffix, uuid, data, config.getHttpConnectTimeoutMs(), config.getHttpReadTimeoutMs(), autoReport);
    }

    /**
     * 可重试的,双向认证的请求
     * @param urlSuffix
     * @param uuid
     * @param data
     * @param connectTimeoutMs
     * @param readTimeoutMs
     * @return
     */
    public String requestWithCert(String urlSuffix, String uuid, String data, int connectTimeoutMs, int readTimeoutMs, boolean autoReport) throws Exception {
        return this.request(urlSuffix, uuid, data, connectTimeoutMs, readTimeoutMs, true, autoReport);

        /*
        String result;
        Exception exception;
        boolean shouldRetry = false;

        boolean useCert = true;
        try {
            result = requestOnce(domain, urlSuffix, uuid, data, connectTimeoutMs, readTimeoutMs, useCert);
            return result;
        }
        catch (ConnectTimeoutException ex) {
            exception = ex;
            WXPayUtil.getLogger().warn(String.format("connect timeout happened for domain {}, try to use {}", domain, this.primaryDomain));
            shouldRetry = true;
        }
        catch (SocketTimeoutException ex) {
            exception = ex;
            shouldRetry = false;
        }
        catch (Exception ex) {
            exception = ex;
            shouldRetry = false;
        }

        if (shouldRetry && this.primaryDomain != null) {
            result = requestOnce(this.primaryDomain, urlSuffix, uuid, data, connectTimeoutMs, readTimeoutMs, useCert, autoReport);
            return result;
        }
        else {
            throw exception;
        }
        */
    }
}

WXPayUtil:

package com.hakj.express.utils.wxpayutils.wxp;

import com.hakj.express.utils.wxpayutils.wxp.WXPayConstants.SignType;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;

import javax.crypto.Mac;
import javax.crypto.spec.SecretKeySpec;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.transform.OutputKeys;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamResult;
import java.io.ByteArrayInputStream;
import java.io.InputStream;
import java.io.StringWriter;
import java.security.MessageDigest;
import java.util.*;


public class WXPayUtil {

    /**
     * XML格式字符串转换为Map
     *
     * @param strXML XML字符串
     * @return XML数据转换后的Map
     * @throws Exception
     */
    public static Map xmlToMap(String strXML) throws Exception {
        try {
            Map data = new HashMap();
            DocumentBuilderFactory documentBuilderFactory = DocumentBuilderFactory.newInstance();
            DocumentBuilder documentBuilder = documentBuilderFactory.newDocumentBuilder();
            InputStream stream = new ByteArrayInputStream(strXML.getBytes("UTF-8"));
            org.w3c.dom.Document doc = documentBuilder.parse(stream);
            doc.getDocumentElement().normalize();
            NodeList nodeList = doc.getDocumentElement().getChildNodes();
            for (int idx = 0; idx < nodeList.getLength(); ++idx) {
                Node node = nodeList.item(idx);
                if (node.getNodeType() == Node.ELEMENT_NODE) {
                    org.w3c.dom.Element element = (org.w3c.dom.Element) node;
                    data.put(element.getNodeName(), element.getTextContent());
                }
            }
            try {
                stream.close();
            } catch (Exception ex) {
                // do nothing
            }
            return data;
        } catch (Exception ex) {
            WXPayUtil.getLogger().warn("Invalid XML, can not convert to map. Error message: {}. XML content: {}", ex.getMessage(), strXML);
            throw ex;
        }

    }

    /**
     * 将Map转换为XML格式的字符串
     *
     * @param data Map类型数据
     * @return XML格式的字符串
     * @throws Exception
     */
    public static String mapToXml(Map data) throws Exception {
        DocumentBuilderFactory documentBuilderFactory = DocumentBuilderFactory.newInstance();
        DocumentBuilder documentBuilder= documentBuilderFactory.newDocumentBuilder();
        org.w3c.dom.Document document = documentBuilder.newDocument();
        org.w3c.dom.Element root = document.createElement("xml");
        document.appendChild(root);
        for (String key: data.keySet()) {
            String value = data.get(key);
            if (value == null) {
                value = "";
            }
            value = value.trim();
            org.w3c.dom.Element filed = document.createElement(key);
            filed.appendChild(document.createTextNode(value));
            root.appendChild(filed);
        }
        TransformerFactory tf = TransformerFactory.newInstance();
        Transformer transformer = tf.newTransformer();
        DOMSource source = new DOMSource(document);
        transformer.setOutputProperty(OutputKeys.ENCODING, "UTF-8");
        transformer.setOutputProperty(OutputKeys.INDENT, "yes");
        StringWriter writer = new StringWriter();
        StreamResult result = new StreamResult(writer);
        transformer.transform(source, result);
        String output = writer.getBuffer().toString(); //.replaceAll("\n|\r", "");
        try {
            writer.close();
        }
        catch (Exception ex) {
        }
        return output;
    }


    /**
     * 生成带有 sign 的 XML 格式字符串
     *
     * @param data Map类型数据
     * @param key API密钥
     * @return 含有sign字段的XML
     */
    public static String generateSignedXml(final Map data, String key) throws Exception {
        return generateSignedXml(data, key, SignType.MD5);
    }

    /**
     * 生成带有 sign 的 XML 格式字符串
     *
     * @param data Map类型数据
     * @param key API密钥
     * @param signType 签名类型
     * @return 含有sign字段的XML
     */
    public static String generateSignedXml(final Map data, String key, SignType signType) throws Exception {
        String sign = generateSignature(data, key, signType);
        data.put(WXPayConstants.FIELD_SIGN, sign);
        return mapToXml(data);
    }


    /**
     * 判断签名是否正确
     *
     * @param xmlStr XML格式数据
     * @param key API密钥
     * @return 签名是否正确
     * @throws Exception
     */
    public static boolean isSignatureValid(String xmlStr, String key) throws Exception {
        Map data = xmlToMap(xmlStr);
        if (!data.containsKey(WXPayConstants.FIELD_SIGN) ) {
            return false;
        }
        String sign = data.get(WXPayConstants.FIELD_SIGN);
        return generateSignature(data, key).equals(sign);
    }

    /**
     * 判断签名是否正确,必须包含sign字段,否则返回false。使用MD5签名。
     *
     * @param data Map类型数据
     * @param key API密钥
     * @return 签名是否正确
     * @throws Exception
     */
    public static boolean isSignatureValid(Map data, String key) throws Exception {
        return isSignatureValid(data, key, SignType.MD5);
    }

    /**
     * 判断签名是否正确,必须包含sign字段,否则返回false。
     *
     * @param data Map类型数据
     * @param key API密钥
     * @param signType 签名方式
     * @return 签名是否正确
     * @throws Exception
     */
    public static boolean isSignatureValid(Map data, String key, SignType signType) throws Exception {
        if (!data.containsKey(WXPayConstants.FIELD_SIGN) ) {
            return false;
        }
        String sign = data.get(WXPayConstants.FIELD_SIGN);
        return generateSignature(data, key, signType).equals(sign);
    }

    /**
     * 生成签名
     *
     * @param data 待签名数据
     * @param key API密钥
     * @return 签名
     */
    public static String generateSignature(final Map data, String key) throws Exception {
        return generateSignature(data, key, SignType.MD5);
    }

    /**
     * 生成签名. 注意,若含有sign_type字段,必须和signType参数保持一致。
     *
     * @param data 待签名数据
     * @param key API密钥
     * @param signType 签名方式
     * @return 签名
     */
    public static String generateSignature(final Map data, String key, SignType signType) throws Exception {
        Set keySet = data.keySet();
        String[] keyArray = keySet.toArray(new String[keySet.size()]);
        Arrays.sort(keyArray);
        StringBuilder sb = new StringBuilder();
        for (String k : keyArray) {
            if (k.equals(WXPayConstants.FIELD_SIGN)) {
                continue;
            }
            if (data.get(k).trim().length() > 0) // 参数值为空,则不参与签名
                sb.append(k).append("=").append(data.get(k).trim()).append("&");
        }
        sb.append("key=").append(key);
        if (SignType.MD5.equals(signType)) {
            return MD5(sb.toString()).toUpperCase();
        }
        else if (SignType.HMACSHA256.equals(signType)) {
            return HMACSHA256(sb.toString(), key);
        }
        else {
            throw new Exception(String.format("Invalid sign_type: %s", signType));
        }
    }


    /**
     * 获取随机字符串 Nonce Str
     *
     * @return String 随机字符串
     */
    public static String generateNonceStr() {
        return UUID.randomUUID().toString().replaceAll("-", "").substring(0, 32);
    }


    /**
     * 生成 MD5
     *
     * @param data 待处理数据
     * @return MD5结果
     */
    public static String MD5(String data) throws Exception {
        MessageDigest md = MessageDigest.getInstance("MD5");
        byte[] array = md.digest(data.getBytes("UTF-8"));
        StringBuilder sb = new StringBuilder();
        for (byte item : array) {
            sb.append(Integer.toHexString((item & 0xFF) | 0x100).substring(1, 3));
        }
        return sb.toString().toUpperCase();
    }

    /**
     * 生成 HMACSHA256
     * @param data 待处理数据
     * @param key 密钥
     * @return 加密结果
     * @throws Exception
     */
    public static String HMACSHA256(String data, String key) throws Exception {
        Mac sha256_HMAC = Mac.getInstance("HmacSHA256");
        SecretKeySpec secret_key = new SecretKeySpec(key.getBytes("UTF-8"), "HmacSHA256");
        sha256_HMAC.init(secret_key);
        byte[] array = sha256_HMAC.doFinal(data.getBytes("UTF-8"));
        StringBuilder sb = new StringBuilder();
        for (byte item : array) {
            sb.append(Integer.toHexString((item & 0xFF) | 0x100).substring(1, 3));
        }
        return sb.toString().toUpperCase();
    }

    /**
     * 日志
     * @return
     */
    public static Logger getLogger() {
        Logger logger = LoggerFactory.getLogger("wxpay java sdk");
        return logger;
    }

    /**
     * 获取当前时间戳,单位秒
     * @return
     */
    public static long getCurrentTimestamp() {
        return System.currentTimeMillis()/1000;
    }

    /**
     * 获取当前时间戳,单位毫秒
     * @return
     */
    public static long getCurrentTimestampMs() {
        return System.currentTimeMillis();
    }

    /**
     * 生成 uuid, 即用来标识一笔单,也用做 nonce_str
     * @return
     */
    public static String generateUUID() {
        return UUID.randomUUID().toString().replaceAll("-", "").substring(0, 32);
    }

}

MWXPayUtil:

package com.hakj.express.utils.wxpayutils;

import com.hakj.express.bean.WXOrderResponse;
import com.hakj.express.service.impl.UserConfigServiceimpl;
import com.hakj.express.utils.wxpayutils.wxp.WXPay;
import com.hakj.express.utils.wxpayutils.wxp.WXPayUtil;
import lombok.extern.log4j.Log4j;
import org.springframework.stereotype.Component;

import javax.annotation.Resource;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;

/**
 * Description:微信支付工具类
 * Author:THP
 * Date:2018/05/22 15:50
 */
@Log4j
@Component
public class MWXPayUtil {

    private WXPayConfigImpl config;
    private WXPay wxpay;
    @Resource
    private UserConfigServiceimpl configService;

    public MWXPayUtil() {
        try {
            config = WXPayConfigImpl.getInstance();
            wxpay = new WXPay(config);
        } catch (Exception e) {
            e.printStackTrace();
            log.error("微信配置初始化错误", e);
        }
    }

    /**
     * 微信统一下单接口
     *
     * @param orderNo   商户订单号
     * @param amount    金额
     * @param describe  商品描述
     * @param UserIp    用户端实际ip
     * @param orderType 订单附加信息   (业务需要数据,自定义的)
     * @return 返回整理的数据模型
     */
    public WXOrderResponse pay(String orderNo, Integer amount, String describe, String UserIp, String orderType) {
        HashMap data = new HashMap<>();
        data.put("body", describe);
        data.put("out_trade_no", orderNo);
//        data.put("device_info", "");//调用接口提交的终端设备号
        data.put("fee_type", "CNY");
        //因为是外币,这里做汇率转换
        amount = new Double(Math.ceil(amount * configService.queryRate())).intValue();
        data.put("total_fee", amount + "");
        data.put("spbill_create_ip", UserIp);
//        data.put("spbill_create_ip", "123.12.12.123");
        data.put("notify_url", config.NOTIFY_URL);
        data.put("trade_type", "APP");//支付类型
        data.put("attach", orderType);//订单附加信息 (业务需要数据,自定义的)
//        data.put("product_id", "12");
//        SimpleDateFormat yyyyMMddHHmmss = new SimpleDateFormat("yyyyMMddHHmmss");
//        Date date = new Date();
//        data.put("time_start", yyyyMMddHHmmss.format(date));
//        Calendar calendar = Calendar.getInstance();
//        calendar.setTime(date);
//        calendar.add(Calendar.MINUTE, 30);
//        data.put("time_expire", yyyyMMddHHmmss.format(calendar.getTime()));
        Map orderInfo;
        try {
            orderInfo = wxpay.unifiedOrder(data);
            System.out.println(orderInfo);
            if (orderInfo == null)
                return null;
        } catch (Exception e) {
            e.printStackTrace();
            return null;
        }
        return parseWXOrderResponse(orderInfo);
    }


    /**
     * 提现
     * 
     *
     * @param orderNo   商户订单号
     * @param amount    金额
     * @param describe  商品描述
     * @param UserIp    用户端实际ip
     * @param orderType 订单附加信息   (业务需要数据,自定义的)
     * @return 返回整理的数据模型
     */
    public WXOrderResponse rePay(String orderNo, Integer amount, String describe, String UserIp, String orderType) {
        HashMap data = new HashMap<>();
        data.put("check_name", "FORCE_CHECK");//NO_CHECK:不校验真实姓名     FORCE_CHECK:强校验真实姓名
        /**
         * 收款用户真实姓名。
         * 如果check_name设置为FORCE_CHECK,则必填用户真实姓名
         */
        data.put("re_user_name", "FORCE_CHECK");
        data.put("out_trade_no", orderNo);
//        data.put("device_info", "");//调用接口提交的终端设备号
        data.put("fee_type", "CNY");
        data.put("total_fee", amount + "");
        data.put("spbill_create_ip", UserIp);
//        data.put("spbill_create_ip", "123.12.12.123");
        data.put("notify_url", config.NOTIFY_URL);
        data.put("trade_type", "APP");//支付类型
        data.put("attach", orderType);//订单附加信息 
//        data.put("product_id", "12");
        SimpleDateFormat yyyyMMddHHmmss = new SimpleDateFormat("yyyyMMddHHmmss");
        Date date = new Date();
        data.put("time_start", yyyyMMddHHmmss.format(date));
        Calendar calendar = Calendar.getInstance();
        calendar.setTime(date);
        calendar.add(Calendar.MINUTE, 30);
        data.put("time_expire", yyyyMMddHHmmss.format(calendar.getTime()));
        Map orderInfo;
        try {
            orderInfo = wxpay.repay(data);
            System.out.println(orderInfo);
            if (orderInfo == null)
                return null;
        } catch (Exception e) {
            e.printStackTrace();
            return null;
        }
        return parseWXOrderResponse(orderInfo);
    }

    /**
     * 退款
     *
     * @param orderNo 商户订单id
     * @param amount  金额
     * @return 返回map(已做过签名验证),具体数据参见微信退款API
     */
    public Map doRefund(String orderNo, Integer amount) throws Exception {
        HashMap data = new HashMap<>();
        data.put("out_trade_no", orderNo);
        data.put("out_refund_no", orderNo);
                //因为是外币,这里做汇率转换
        amount = new Double(Math.floor(amount * configService.queryRate())).intValue();
        data.put("total_fee", amount + "");
        data.put("refund_fee", amount + "");
        data.put("refund_fee_type", "CNY");
        data.put("op_user_id", config.getMchID());

        try {
            Map r = wxpay.refund(data);
            System.out.println(r);
            return r;
        } catch (Exception e) {
            e.printStackTrace();
            return null;
        }
    }


    public Map getWithdrawBankMap(String orderNo) throws Exception {
        Map data = new HashMap<>();
        return data;
    }


    /**
     * 查微信订单
     *
     * @param orderNo
     */
    public WXOrderResponse queryOrder(String orderNo) {
        System.out.println("查询订单");
        HashMap data = new HashMap();
        data.put("out_trade_no", orderNo);
//        data.put("transaction_id", "4008852001201608221962061594");
        try {
            Map r = wxpay.orderQuery(data);
            System.out.println(r);
            return parseWXOrderResponse(r);
        } catch (Exception e) {
            e.printStackTrace();
            log.error("查询订单失败", e);
            return null;
        }
    }

    /**
     * 撤销订单
     *
     * @param orderNo
     * @return
     */
    public Map reverseOrder(String orderNo) {
        System.out.println("撤销");
        HashMap data = new HashMap();
        data.put("out_trade_no", orderNo);
//        data.put("transaction_id", "4008852001201608221962061594");
        try {
            Map r = wxpay.reverse(data);
            System.out.println(r);
            return r;
        } catch (Exception e) {
            e.printStackTrace();
            log.error("微信撤销订单失败", e);
            return null;
        }
    }

    /**
     * 关闭订单
     *
     * @param orderNo
     * @return
     */
    public Map closeOrder(String orderNo) {
        System.out.println("关闭订单");
        HashMap data = new HashMap<>();
        data.put("out_trade_no", orderNo);
        try {
            Map r = wxpay.closeOrder(data);
            System.out.println(r);
            return r;
        } catch (Exception e) {
            e.printStackTrace();
            log.error("微信关闭订单失败", e);
            return null;
        }
    }

    /**
     * 将map转成用户端用的封装体
     *
     * @param map map
     * @return 用户端用的封装体
     */
    private WXOrderResponse parseWXOrderResponse(Map map) {
        WXOrderResponse response = new WXOrderResponse();
        response.setAppid(map.get("appid"));
        response.setCode_url(map.get("code_url"));
        response.setMch_id(map.get("mch_id"));
        response.setNonce_str(map.get("nonce_str"));
        response.setPrepay_id(map.get("prepay_id"));
        response.setResult_code(map.get("result_code"));
        response.setReturn_msg(map.get("return_msg"));
        response.setReturn_code(map.get("return_code"));
        response.setPack("Sign=WXPay");
        //坑  todo 超级坑
//        response.setSign(map.get("sign"));
//        String time = new Date().getTime() + "";
        String substring = System.currentTimeMillis() / 1000 + "";
        response.setTime(substring);
        //坑!!!!!!!!!!
        //sgin(签名),不是拿微信返回的sgin,而是自己再签一次,返回给客户端
        //注意:key不能是大写
        Map params = new HashMap<>();
        params.put("appid", config.getAppID());
        params.put("partnerid", config.getMchID());
        params.put("prepayid", map.get("prepay_id"));
        params.put("package", "Sign=WXPay");
        params.put("noncestr", map.get("nonce_str"));
        params.put("timestamp", substring);
        try {
            String sgin = WXPayUtil.generateSignature(params, config.getKey());
            response.setSign(sgin);
        } catch (Exception e) {
            e.printStackTrace();
            return null;
        }
        response.setErr_code_des(map.get("err_code_des"));
        return response;
    }


    /**
     * 是否成功接收微信支付回调
     * 用于回复微信,否则微信回默认为商户后端没有收到回调
     *
     * @return
     */
    public String returnWXPayVerifyMsg() {
        return "\n" +
                "\n" +
                "  \n" +
                "  \n" +
                "";
    }

    public WXPay getWxpay() {
        return wxpay;
    }
}

WXPayConfigImpl:

package com.hakj.express.utils.wxpayutils;

import com.hakj.express.utils.wxpayutils.wxp.IWXPayDomain;
import com.hakj.express.utils.wxpayutils.wxp.WXPayConfig;
import com.hakj.express.utils.wxpayutils.wxp.WXPayDomainSimpleImpl;
import org.springframework.core.io.ClassPathResource;

import java.io.ByteArrayInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.InputStream;

/**
 * Description:微信配置
 * Author:THP
 * Date:2018/05/24 09:41
 */
public class WXPayConfigImpl extends WXPayConfig {
    private byte[] certData;
    private static WXPayConfigImpl INSTANCE;

    public final static String NOTIFY_URL = "http://***/wx-pay/callback";
//    public final static String NOTIFY_URL = "https://api.mch.weixin.qq.com/pay/unifiedorder";

    private WXPayConfigImpl() throws Exception {
        //获取证书
        File file = new ClassPathResource("apiclient_cert.p12").getFile();
        InputStream certStream = new FileInputStream(file);
        this.certData = new byte[(int) file.length()];
        certStream.read(this.certData);
        certStream.close();
    }

    public static WXPayConfigImpl getInstance() throws Exception {
        if (INSTANCE == null) {
            synchronized (WXPayConfigImpl.class) {
                if (INSTANCE == null) {
                    INSTANCE = new WXPayConfigImpl();
                }
            }
        }
        return INSTANCE;
    }

    public String getAppID() {
        return "***";
    }


    public String getMchID() {
        return "***";
    }


    public String getKey() {
        return "***";
    }


    public InputStream getCertStream() {
        ByteArrayInputStream certBis;
        certBis = new ByteArrayInputStream(this.certData);
        return certBis;
    }


    public int getHttpConnectTimeoutMs() {
        return 2000;
    }

    public int getHttpReadTimeoutMs() {
        return 10000;
    }


//    @Override
//    protected IWXPayDomain getWXPayDomain() {
//        return null;
//    }

    protected IWXPayDomain getWXPayDomain() {
        return WXPayDomainSimpleImpl.instance();
    }

    public String getPrimaryDomain() {
        return "api.mch.weixin.qq.com";
    }

    public String getAlternateDomain() {
        return "api2.mch.weixin.qq.com";
    }

//    @Override
//    public int getReportWorkerNum() {
//        return 1;
//    }
//
//    @Override
//    public int getReportBatchSize() {
//        return 2;
//    }
}

WXPayController:

package com.hakj.express.controller;

import com.hakj.express.bean.WXOrderResponse;
import com.hakj.express.utils.HorseJPushUtils;
import com.hakj.express.utils.OrderUtil;
import com.hakj.express.utils.ResponCode;
import com.hakj.express.utils.ResponseMessage;
import com.hakj.express.utils.wxpayutils.*;
import com.hakj.express.utils.wxpayutils.wxp.WXPay;
import com.hakj.express.utils.wxpayutils.wxp.WXPayConstants;
import com.hakj.express.utils.wxpayutils.wxp.WXPayUtil;
import lombok.extern.log4j.Log4j;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.web.bind.annotation.*;

import javax.annotation.Resource;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.*;
import java.util.*;

/**
 * Description:微信支付接口
 * Author:THP
 * Date:2018/05/07 15:58
 */
@Log4j
@RestController
public class WXPayController {

    @Resource
    private MWXPayUtil mwxPayUtil;

    @Resource
    private OrderUtil orderUtil;

    /**
     * 微信统一下单接口
     *
     * @param request
     * @param response
     */
    @PostMapping("/wxpay")
    public WXOrderResponse wxPrePay(HttpServletRequest request, HttpServletResponse response) {
        return
                null;
    }

    /**
     * 异步回调接口
     *
     * @param request
     * @param response
     * @throws Exception
     */
    @PostMapping(value = "/wx-pay/callback", produces = "text/html;charset=utf-8")
    public String WeixinParentNotifyPage(HttpServletRequest request, HttpServletResponse response) throws Exception {
        //读取参数  
        InputStream inputStream;
        StringBuffer sb = new StringBuffer();
        inputStream = request.getInputStream();
        String s;
        BufferedReader in = new BufferedReader(new InputStreamReader(inputStream, "UTF-8"));
        while ((s = in.readLine()) != null) {
            sb.append(s);
        }
        in.close();
        inputStream.close();
        //解析xml成map  
        Map data = new HashMap();
        data = WXPayUtil.xmlToMap(sb.toString());
//        for (Object keyValue : data.keySet()) {
//            System.out.println(keyValue + "=" + data.get(keyValue));
//        }
        //判断签名是否正确
        WXPay wxPay = mwxPayUtil.getWxpay();
        if (!wxPay.isPayResultNotifySignatureValid(data)) {
            //验签失败
            return "";
        }
        //过滤空 设置 TreeMap
        SortedMap packageParams = new TreeMap();
        Iterator it = data.keySet().iterator();
        while (it.hasNext()) {
            String parameter = (String) it.next();
            String parameterValue = data.get(parameter);

            String v = "";
            if (null != parameterValue) {
                v = parameterValue.trim();
            }
            packageParams.put(parameter, v);
        }

        if (packageParams.get("return_code").equals(WXPayConstants.SUCCESS)) {
//            if (true)
            if (orderUtil.upOrderState(packageParams.get("out_trade_no").toString(), packageParams.get("attach").toString(), Double.parseDouble(packageParams.get("total_fee").toString()) * 100, 2,packageParams.get("transaction_id").toString()))
                return (mwxPayUtil.returnWXPayVerifyMsg());
            else
                return "";
        } else return "";
    }

    /**
     * 微信提现
     *
     * @param wxCode 微信账号
     * @param price  金额
     * @return
     */
    @PostMapping("/extract/wx")
    public ResponseMessage exWX(String wxCode, double price) {
        ResponseMessage msg = new ResponseMessage<>();
        return msg;
    }

    /**
     * 微信关闭订单接口
     *
     * @param orderNo 订单号
     * @return
     */
    @PostMapping("/wx/close-order")
    public ResponseMessage WXCloseOrder(String orderNo) {
        ResponseMessage msg = new ResponseMessage<>();
        Map map = mwxPayUtil.closeOrder(orderNo);
        if (map != null && map.get("return_code").equals(WXPayConstants.SUCCESS))
            msg.setMsg("订单" + orderNo + " 关闭成功");
        else msg.setCode(ResponCode.ERROR).setMsg(map.get("return_msg"));
        return msg;
    }

    /**
     * 查询订单
     *
     * @param orderNo
     * @return
     */
    @PostMapping("/wx/query-order")
    public ResponseMessage queryOrder(String orderNo) {
        ResponseMessage msg = new ResponseMessage<>();
        return msg.setData(mwxPayUtil.queryOrder(orderNo));
    }

    /**
     * 手动退款
     *
     * @param orderNo
     * @param price
     * @return
     * @throws Exception
     */
    @PostMapping("/wx/tuikuan")
    public String tuikuan(String orderNo, double price) throws Exception {
        return mwxPayUtil.doRefund(orderNo, ((int) (price * 100))).toString();
    }


    @Value("${hakj.horse.jpush.order.cancel.key}")
    private String horseAlisKey;

    @PostMapping("/push/horseMan")
    public String pushToHorseMan(Integer hid) {
        HorseJPushUtils pushUtils = new HorseJPushUtils();
        HashMap msg = new HashMap<>();
        msg.put("notification", "有新的订单");
        msg.put("title", "有新的订单");
        msg.put("msg", ResponCode.NEW_ORDER + "");
        ArrayList alis = new ArrayList<>();
        alis.add(horseAlisKey + hid);
        boolean b = pushUtils.pushAll(msg, false, null, alis, null);
        return b + "";
    }
}

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