小程序页面唤起微信支付+Java后台
之前做的，一直没时间记录，如果大家试了不好使应该是哪里忘拿过来了，可以帮忙提醒我一下，（自己系统内的实体类就不zhantie过来了），小程序内用户提现也做完了，过两天再更新，提现需要开通企业付款到零钱，需要开通商户九十天以上，并且保证连续三十日交易，谢谢啦。
小程序发起请求:
add: function(){
var that = this;
//微信支付第一次签名
wx.request({
url: app.globalData.url + '/appInterface/updateGasRecharge.do',
method: 'POST',
data: {
totalFel: that.data.addgasmoneys,
payType:"微信委托代扣支付",
type: "1",
orderBody:"司机加气钱包充值",
userOpenid: app.globalData.openid,
driverUuid: app.globalData.driverUuid,
},
header: {
"Content-Type": "application/x-www-form-urlencoded"
},
success: function (res) {
//调起微信支付
wx.requestPayment(
{
'timeStamp': res.data.obj.timeStamp,
'nonceStr': res.data.obj.nonceStr,
'package': res.data.obj.package_,
'signType': 'MD5',
'paySign': res.data.obj.paySign,
'success': function (res) {
console.log('支付成功')
console.log(res)
app.globalData.gasMany = parseFloat(app.globalData.gasMany) + parseFloat(that.data.addgasmoneys)
console.log("充值金额" + parseFloat(that.data.addgasmoneys))
},
'fail': function (res) {
console.log('支付失败或取消支付')
console.log(res)
},
'complete': function (res) {
console.log('支付完成')
console.log(res)
wx.navigateBack({})
}
})
}
})
java控制器接收请求：
@RequestMapping("/updateGasRecharge")
@ResponseBody
public Json updateGasRecharge(TaxiWeixinOrder taxiWeixinOrder,String driverUuid){
logger.info("----------开始加气充值接口----------");
Json j = new Json();
j.setSuccess(false);
logger.info("---------请求参数---------");
logger.info("driverUuid:" + driverUuid);
logger.info("rechage:" + taxiWeixinOrder.getTotalFel());
JSApiRequest jsap;
try{
if(Double.valueOf(taxiWeixinOrder.getTotalFel()) < 0){
j.setMsg("充值金额必须大于0");
j.setSuccess(false);
return j;
}
//生成充值记录预信息
String hql = "from TaxiDriver t where t.uuid = '" + driverUuid + "'";
TaxiDriver taxiDriver = taxiDriverService.getByHql(hql);
TaxiDriverRecharge taxiDriverRecharge = new TaxiDriverRecharge();
taxiDriverRecharge.setUuid(PbUtils.getUUID());
taxiDriverRecharge.setDriverName(taxiDriver.getDriverName());
taxiDriverRecharge.setDriverUuid(taxiDriver.getUuid());
taxiDriverRecharge.setStatus("1");
taxiDriverRecharge.setCreateTime(new Date());
taxiDriverRechargeService.add(taxiDriverRecharge);
//生成微信预订单
taxiWeixinOrder.setUuid(PbUtils.getUUID());
taxiWeixinOrder.setCreateTime(new Date());
taxiWeixinOrder.setFid(taxiDriverRecharge.getUuid());
taxiWeixinOrderService.add(taxiWeixinOrder);
WeixinService weixinService = new WeixinService();
jsap = weixinService.weixinOrderPay(taxiWeixinOrder);
j.setObj(jsap);
j.setSuccess(true);
}catch(Exception e){
e.printStackTrace();
j.setMsg("加气充值接口异常" + e.getMessage());
j.setSuccess(false);
logger.error("----------" + j.getMsg()+ "----------");
}
logger.info("----------结束加气充值接口----------");
return j;
}
JSApiRequest 类：
public class JSApiRequest {
private String appId;
private String timeStamp;
private String nonceStr;
private String package_;
private String signType;
private String paySign;
private String code_url;
private String trade_type;
private String prepay_id;
//以下是为以后查询订单用到的参数
private String paymentId;
get set 方法
}
WeixinService的weixinOrderPay方法：
configInfo是自己配置的常量类。
public JSApiRequest weixinOrderPay(TaxiWeixinOrder taxiWeixinOrder) throws Exception {
UnifiedWxOrderRequest request = new UnifiedWxOrderRequest();
request.setAppid(configInfo.getWxAppId());
request.setMch_id(configInfo.getWxMchId());
request.setDevice_info("");
request.setNonce_str(RandomStringGenerator.getRandomStringByLength(32));
request.setBody(taxiWeixinOrder.getOrderBody());
request.setDetail(taxiWeixinOrder.getOrderBody());
request.setAttach(taxiWeixinOrder.getType());
request.setOut_trade_no(taxiWeixinOrder.getUuid());
//传过来的单位是元，微信要求分
request.setTotal_fee((int)(Double.parseDouble(taxiWeixinOrder.getTotalFel()) * 100));
request.setSpbill_create_ip("120.27.24.135");
request.setNotify_url(configInfo.getNotifyurl());//微信支付成功后回调地址
request.setTrade_type("JSAPI");
request.setOpenid(taxiWeixinOrder.getUserOpenid());
request.setSign(Signature.getSign(request));
logger.error("发起order支付，paymentId:" + taxiWeixinOrder.getUuid());
String response = httpUtil.sendXMLPost(configInfo.getWxUnifiedOrderUrl(), request, UnifiedWxOrderRequest.class);
logger.error("order完成，paymentId:" + taxiWeixinOrder.getUuid());
UnifiedWxOrderResponse result= (UnifiedWxOrderResponse) httpUtil.getObjectFromXML(response, UnifiedWxOrderResponse.class);
if("SUCCESS".equals(result.getResult_code())){
//根据response拼接出接下来网页要用到的request
JSApiRequest apiRequest = new JSApiRequest();
apiRequest.setAppId(configInfo.getWxAppId());
apiRequest.setNonceStr(RandomStringGenerator.getRandomStringByLength(32));
apiRequest.setPackage_("prepay_id=" + result.getPrepay_id());
apiRequest.setSignType("MD5");
apiRequest.setTimeStamp(String.valueOf((new Date().getTime()/1000)));
apiRequest.setPaySign(Signature.getSign(apiRequest));
apiRequest.setPaymentId(taxiWeixinOrder.getUuid());
return apiRequest;
}else{
throw new Exception("微信支付失败，错误信息" + result.getReturn_msg());
}
}
生成随机字符串方法：
public static String getRandomStringByLength(int length) {
String base = "abcdefghijklmnopqrstuvwxyz0123456789";
Random random = new Random();
StringBuffer sb = new StringBuffer();
for (int i = 0; i < length; i++) {
int number = random.nextInt(base.length());
sb.append(base.charAt(number));
}
return sb.toString();
}
UnifiedWxOrderRequest 类：
public class UnifiedWxOrderRequest {
private String appid;
private String mch_id;
private String device_info;
private String nonce_str;
private String sign;
private String body;
private String detail;
private String attach;
private String out_trade_no;
private Integer total_fee;
private String spbill_create_ip;
private String time_start;
private String notify_url;
private String trade_type;
private String openid;
private String transaction_id;
private String bill_date;
private String bill_type;
private String sign_type;
get set 方法
}
httputil发送xml请求与获取结果
public String sendXMLPost(String url, Object xmlObj, Class tClass) throws IOException, KeyStoreException, UnrecoverableKeyException, NoSuchAlgorithmException, KeyManagementException {
String result = null;
DefaultHttpClient httpClient = new DefaultHttpClient();
HttpPost httpPost = new HttpPost(url);
//解决XStream对出现双下划线的bug
XStream xStreamForRequestPostData = new XStream(new DomDriver("UTF-8", new XmlFriendlyNameCoder("-_", "_")));
xStreamForRequestPostData.alias("xml", tClass);
//将要提交给API的数据对象转换成XML格式数据Post给API
String postDataXML = xStreamForRequestPostData.toXML(xmlObj);
//postDataXML = "appid=wx339a4c458dc797a2&body=监控缴费-课程缴费-113&detail=监控缴费-课程缴费-113&device_info=WEB&mch_id=1266963401&nonce_str=1t0563iks6kzpt3vt35jdyh85kms9ch1¬ify_url=https://lnbbzx.com/jy/appWeiXin/receiveOrderResult.do&openid=oiXHy5Ka_qyZLKEw9Yy43g-OkWVU&out_trade_no=b88ae1493d7741c78dffa12e13e502ab&spbill_create_ip=127.0.0.1&total_fee=300&trade_type=JSAPI&key=ba13d829b1e17744b9e5f6e59d7d9b2f";
System.out.println(postDataXML);
//得指明使用UTF-8编码，否则到API服务器XML的中文不能被成功识别
StringEntity postEntity = new StringEntity(postDataXML, "UTF-8");
httpPost.addHeader("Content-Type", "text/xml");
httpPost.setEntity(postEntity);
try {
HttpResponse response = httpClient.execute(httpPost);
HttpEntity entity = response.getEntity();
result = EntityUtils.toString(entity, "UTF-8");
} catch (Exception e) {
e.printStackTrace();
} finally {
httpPost.abort();
}
return result;
}
public Object getObjectFromXML(String xml, Class tClass) {
//将从API返回的XML数据映射到Java对象
XStream xStreamForResponseData = new XStream(new DomDriver("UTF-8", new XmlFriendlyNameCoder("-_", "_")));
xStreamForResponseData.alias("xml", tClass);
xStreamForResponseData.ignoreUnknownElements();//暂时忽略掉一些新增的字段
return xStreamForResponseData.fromXML(xml);
}
回调方法
/**
* 接收支付订单回调
*
* @param request
* @param response
* @throws IOException
*/
@RequestMapping("/receiveOrderResult")
@ResponseBody
public void receiveOrderResult(HttpServletRequest request,HttpServletResponse response) throws IOException {
Map<String, Object> requestMap = httpUtil.Dom2Map(request.getInputStream());
String xmlString = receivePayResult(requestMap);
if (xmlString != null) {
response.setCharacterEncoding("UTF-8");
PrintWriter out = response.getWriter();
out.print(xmlString);
out.flush();
out.close();
return;
}
}
/**
* 接收支付结果
*
* @param requestMap
* @return xmlString
*/
public String receivePayResult(Map<String, Object> requestMap) {
String successStr = httpUtil.getXMLStringFromObject(
new ReceivePayResponse(), ReceivePayResponse.class);
logger.info("successStr :" + successStr);
if (requestMap.get("out_trade_no") == null) {
return successStr;
}
ReentrantLock lock = LockUtil.getInstance().getLockForKey(
(String) requestMap.get("out_trade_no"));
try {
lock.lock();
// 根据out_trade_no进行查重，处理过的订单不再处理
TaxiWeixinOrder taxiWeixinOrder = taxiWeixinOrderService.getById(TaxiWeixinOrder.class,
(String) requestMap.get("out_trade_no"));
// //将一系列结果插入表中
taxiWeixinOrder.setResultCode((String) requestMap.get("result_code"));
taxiWeixinOrder.setErrCode((String) requestMap.get("err_code"));
taxiWeixinOrder.setErrCodeDes((String) requestMap.get("err_code_desc"));
taxiWeixinOrder.setTimeEnd((String) requestMap.get("time_end"));
taxiWeixinOrderService.modify(taxiWeixinOrder);
//1，JSAPI支付
if ("1".equals(taxiWeixinOrder.getType())) {
TaxiDriverRecharge taxiDriverRecharge = taxiDriverRechargeService.getById(
TaxiDriverRecharge.class, taxiWeixinOrder.getFid());
String hql = "from TaxiDriver t where t.uuid = '" + taxiDriverRecharge.getDriverUuid() + "'";
TaxiDriver taxiDriver = taxiDriverService.getByHql(hql);
taxiDriverService.updateGasRecharge(taxiDriverRecharge.getDriverUuid(), taxiWeixinOrder.getTotalFel());
taxiDriverRecharge.setRecharge(taxiWeixinOrder.getTotalFel());
taxiDriverRecharge.setRechageBefore(String.valueOf(taxiDriver.getGasMany()));
taxiDriverRecharge.setRechargeAfter(String.valueOf(Double.valueOf(taxiWeixinOrder.getTotalFel()) + taxiDriver.getGasMany()));
taxiDriverRecharge.setStatus("0");
taxiDriverRechargeService.modify(taxiDriverRecharge);
logger.info("----------充值成功----------");
}else if ("0".equals(taxiWeixinOrder.getType())) {//共享充电线
//taxiWeixinOrderService.modify(taxiWeixinOrder);
String sql = "SELECT t.DEVICE_ID as deviceId,t.PUSH_ID as pushId "
+ "FROM t_taxi_driver_login t,(SELECT MAX(l.CREATE_TIME) as createTime FROM t_taxi_driver_login l WHERE l.DRIVER_UUID = '" + taxiWeixinOrder.getDriverUuid() + "') tl "
+ "WHERE tl.createTime = t.CREATE_TIME ";
List<Map> list = taxiDriverLoginService.findBySql(sql);
if(list.size() == 0){
}else{
boolean flag = jPush(list.get(0).get("pushId").toString(), "3", "true");
logger.info("----------扫码状况 : " + flag + "----------");
}
logger.info("----------付款成功----------");
}
return successStr;
} catch (NumberFormatException e) {
e.printStackTrace();
return "";
} finally {
lock.unlock();
}
}