java 服务端对接微信支付 Demo
服务端代码：
package com.wlsq.kso.web;
import java.io.ByteArrayOutputStream;
import java.io.InputStream;
import java.io.UnsupportedEncodingException;
import java.math.BigDecimal;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Random;
import java.util.Set;
import java.util.SortedMap;
import java.util.TreeMap;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.cxf.common.util.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;
import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.JSONObject;
import com.wlsq.kso.annotation.MethodAction;
import com.wlsq.kso.entity.ResultObject;
import com.wlsq.kso.service.AccountWalletService;
import com.wlsq.kso.util.HttpUtil;
import com.wlsq.kso.util.MyMd5Util;
import com.wlsq.kso.util.XmltoJsonUtil;
/**
* 微信支付接口Controller
*
* @author zzg
* @date 2017-02-18
*/
@Controller
@RequestMapping(value = "/WeiXinPay")
public class AccountWeiXinController {
private static final Logger LOG = LoggerFactory
.getLogger(AccountWeiXinController.class);
@Autowired
private AccountWalletService accountWalletService;
// 微信统一下单接口路径
private static final String UNIFORMORDER = "https://api.mch.weixin.qq.com/pay/unifiedorder";
// 微信商户号：*****
private static final String MCHID = "********";
// 微信回调地址
private static final String NOTIFYURL = "*********";
// 微信交易类型
private static final String TRADETYPE = "APP";
//微信APIKEY
private static final String APIKEY ="************";
/**
* 微信统一下单
*
* @return
* @throws UnsupportedEncodingException
*/
@MethodAction(optionDescription = "微信统一下单", methodName = "/WeiXinPay/uniformorder")
@RequestMapping(value = "/uniformorder", method = RequestMethod.POST, produces = "text/html;charset=UTF-8")
@ResponseBody
public String uniformorder(HttpServletRequest request) throws UnsupportedEncodingException {
ResultObject result = new ResultObject();// 返回数据结果集合
request.setCharacterEncoding("UTF-8");
try {
//APP ID
String appid = request.getParameter("appid") == null ? null
: request.getParameter("appid").trim().toUpperCase();
// 用户访问令牌
String accessToken = request.getParameter("accessToken") == null ? null
: request.getParameter("accessToken").trim();
// 订单编号
String orderNum = request.getParameter("orderNum") == null ? null
: request.getParameter("orderNum").trim();// 订单编号
// 消费金额
String money = request.getParameter("money") == null ? null
: request.getParameter("money").trim();// 消费金额
// 消费主题
String subject = request.getParameter("subject") == null ? null
: request.getParameter("subject").trim();// 消费主体
if(StringUtils.isEmpty(appid)){
result.setMsg("参数：appid 为空");
result.setResultCode("-1");
return JSON.toJSONString(result);
}
if(StringUtils.isEmpty(accessToken)){
result.setMsg("参数：accessToken 为空");
result.setResultCode("-1");
return JSON.toJSONString(result);
}
if(StringUtils.isEmpty(orderNum)){
result.setMsg("参数：orderNum 为空");
result.setResultCode("-1");
return JSON.toJSONString(result);
}
if(StringUtils.isEmpty(money)){
result.setMsg("参数：money 为空");
result.setResultCode("-1");
return JSON.toJSONString(result);
}
if(StringUtils.isEmpty(subject)){
result.setMsg("参数：subject 为空");
result.setResultCode("-1");
return JSON.toJSONString(result);
}
SortedMap parame = new TreeMap();
parame.put("appid", *********");
parame.put("mch_id", MCHID);// 商家账号。
String randomStr = getRandomString(18).toUpperCase();
parame.put("nonce_str", randomStr);// 随机字符串
parame.put("body", subject);// 商品描述
parame.put("out_trade_no", orderNum);// 商户订单编号
//支付金额
parame.put("total_fee", BigDecimal.valueOf(Long.parseLong(money)).multiply(new BigDecimal(100)).toString());// 消费金额
String ip = getIpAddr(request);
if (StringUtils.isEmpty(ip)) {
parame.put("spbill_create_ip", "127.0.0.1");// 消费IP地址
} else {
parame.put("spbill_create_ip", ip);// 消费IP地址
}
parame.put("notify_url", NOTIFYURL);// 回调地址
parame.put("trade_type", TRADETYPE);// 交易类型APP
String sign =createSign(parame);
parame.put("sign", sign);// 数字签证
String xml = getRequestXML(parame);
String content = HttpUtil.sendPost(UNIFORMORDER, xml);
System.out.println(content);
JSONObject jsonObject = JSONObject.parseObject(XmltoJsonUtil.xml2JSON(content)) ;
JSONObject result_xml = jsonObject.getJSONObject("xml");
JSONArray result_code = result_xml.getJSONArray("result_code");
String code = (String)result_code.get(0);
List data = new ArrayList();
if(code.equalsIgnoreCase("FAIL")){
result.setMsg("微信统一订单下单失败");
result.setResultCode("-1");
result.setData(data);
}else if(code.equalsIgnoreCase("SUCCESS")){
JSONArray prepay_id = result_xml.getJSONArray("prepay_id");
String prepayId = (String)prepay_id.get(0);
data.add(prepayId);
result.setMsg("微信统一订单下单成功");
result.setResultCode("1");
result.setData(data);
}
return JSON.toJSONString(result);
} catch (Exception e) {
result.setMsg(e.getMessage());
result.setResultCode("-1");
return JSON.toJSONString(result);
}
}
/**
* 微信订单回调接口
*
* @return
*/
@MethodAction(optionDescription = "微信回掉接口", methodName = "/WeiXinPay/notify")
@RequestMapping(value = "/notify", method = RequestMethod.POST, produces = "text/html;charset=UTF-8")
@ResponseBody
public void notify(HttpServletRequest request,HttpServletResponse response){
ResultObject result = new ResultObject();// 返回数据结果集合
try{
request.setCharacterEncoding("UTF-8");
response.setCharacterEncoding("UTF-8");
response.setContentType("text/html;charset=UTF-8");
response.setHeader("Access-Control-Allow-Origin", "*");
InputStream in=request.getInputStream();
ByteArrayOutputStream out=new ByteArrayOutputStream();
byte[] buffer =new byte[1024];
int len=0;
while((len=in.read(buffer))!=-1){
out.write(buffer, 0, len);
}
out.close();
in.close();
String content=new String(out.toByteArray(),"utf-8");//xml数据
JSONObject jsonObject = JSONObject.parseObject(XmltoJsonUtil.xml2JSON(content)) ;
JSONObject result_xml = jsonObject.getJSONObject("xml");
JSONArray result_code = result_xml.getJSONArray("result_code");
String code = (String)result_code.get(0);
if(code.equalsIgnoreCase("FAIL")){
result.setMsg("微信统一订单下单失败");
result.setResultCode("-1");
response.getWriter().write(setXml("SUCCESS", "OK"));
}else if(code.equalsIgnoreCase("SUCCESS")){
result.setMsg("微信统一订单下单成功");
result.setResultCode("1");
JSONArray out_trade_no = result_xml.getJSONArray("out_trade_no");//订单编号
Map map = new HashMap();
map.put("orderNum", (String)out_trade_no.get(0));
map.put("consumState", 1);
accountWalletService.updateAccountOrderState(map);
response.getWriter().write(setXml("SUCCESS", "OK"));
}
}catch(Exception e){
result.setMsg(e.getMessage());
result.setResultCode("-1");
return;
}
}
// 返回用IP地址
public String getIpAddr(HttpServletRequest request) {
String ip = request.getHeader(" x-forwarded-for ");
if (ip == null || ip.length() == 0 || " unknown ".equalsIgnoreCase(ip)) {
ip = request.getHeader(" Proxy-Client-IP ");
}
if (ip == null || ip.length() == 0 || " unknown ".equalsIgnoreCase(ip)) {
ip = request.getHeader(" WL-Proxy-Client-IP ");
}
if (ip == null || ip.length() == 0 || " unknown ".equalsIgnoreCase(ip)) {
ip = request.getRemoteAddr();
}
return ip;
}
// 随机字符串生成
public static String getRandomString(int length) { // length表示生成字符串的长度
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();
}
//拼接xml 请求路径
public static String getRequestXML(SortedMap parame){
StringBuffer buffer = new StringBuffer();
buffer.append("");
Set set = parame.entrySet();
Iterator iterator = set.iterator();
while(iterator.hasNext()){
Map.Entry entry = (Map.Entry) iterator.next();
String key = (String)entry.getKey();
String value = (String)entry.getValue();
//过滤相关字段sign
if("sign".equalsIgnoreCase(key)){
buffer.append("<"+key+">"+""+"");
}else{
buffer.append("<"+key+">"+value+"");
}
}
buffer.append(" ");
return buffer.toString();
}
//创建md5 数字签证
public static String createSign(SortedMap parame){
StringBuffer buffer = new StringBuffer();
Set set = parame.entrySet();
Iterator iterator = set.iterator();
while(iterator.hasNext()){
Map.Entry entry = (Map.Entry) iterator.next();
String key = (String)entry.getKey();
Object value = (String)entry.getValue();
if(null != value && !"".equals(value) && !"sign".equals(key) && !"key".equals(key)){
buffer.append(key+"="+value+"&");
}
}
buffer.append("key="+APIKEY);
String sign =MyMd5Util.md5(buffer.toString()).toUpperCase();
System.out.println("签名参数："+sign);
return sign;
}
//返回微信服务
public static String setXml(String return_code,String return_msg){
return "1 parame = new TreeMap();
// parame.put("appid", "wxdf26629c37f5b7c1");
// parame.put("mch_id", MCHID);
// String randomStr = getRandomString(18).toUpperCase();
// parame.put("nonce_str", randomStr);
// String subject = "余额充值";
// parame.put("body", subject);
// String orderNum = "3a6154e2a662407c8223971284c372a7";
// parame.put("out_trade_no", orderNum);
// String money ="1";
// parame.put("total_fee", money);
// String ip ="127.0.0.1";
// parame.put("spbill_create_ip", ip);
// parame.put("notify_url", NOTIFYURL);
// parame.put("trade_type", TRADETYPE);
// String sign =createSign(parame);
// parame.put("sign", sign);// 数字签证
//
// String xml = getRequestXML(parame);
//
// String content = HttpUtil.sendPost(UNIFORMORDER, xml);
//
// //成功代码
// String result = XmltoJsonUtil.xml2JSON(content);
// JSONObject jsonObject = JSONObject.parseObject(result) ;
// JSONObject results = jsonObject.getJSONObject("xml");
// JSONArray array = results.getJSONArray("result_code");
// String code = (String)array.get(0);
// System.out.println(results.toString());
// System.out.println(code);
//失败代码
// String result = XmltoJsonUtil.xml2JSON(content);
// JSONObject jsonObject = JSONObject.parseObject(result) ;
// System.out.println(jsonObject.toString());
}
}
HttpUtil 类
package com.wlsq.kso.util;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.PrintStream;
import java.io.PrintWriter;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLConnection;
import java.util.Map;
public class HttpUtil
{
public static final String POST = "POST";
public static final String GET = "GET";
public static String post(String uriString, Map params)
throws Exception
{
URL url = new URL(uriString);
HttpURLConnection con = (HttpURLConnection)url.openConnection();
con.setDoOutput(true);
con.setDoInput(true);
con.setRequestMethod(RequstMethod.POST.value());
con.setRequestProperty(" Content-Type ",
" application/x-www-form-urlencoded ");
con.setUseCaches(false);
con.setInstanceFollowRedirects(true);
if (params != null) {
StringBuffer sb = new StringBuffer();
String data = null;
byte[] b = null;
for (String key : params.keySet()) {
sb.append(key).append('=').append((String)params.get(key)).append('&');
}
data = sb.substring(0, sb.length() - 1);
b = data.getBytes("UTF-8");
OutputStream out = con.getOutputStream();
out.write(b);
out.flush();
out.close();
}
InputStream in = con.getInputStream();
String responseBody = FileUtil.readAll(in);
return responseBody;
}
public static String post(String uriString, Map params, String authorization)
throws Exception
{
URL url = new URL(uriString);
HttpURLConnection con = (HttpURLConnection)url.openConnection();
con.setDoOutput(true);
con.setDoInput(true);
con.setRequestMethod(RequstMethod.POST.value());
con.setRequestProperty("Content-Type", "application/json");
con.setRequestProperty("Authorization", authorization);
con.setUseCaches(false);
con.setInstanceFollowRedirects(true);
if (params != null) {
StringBuffer sb = new StringBuffer();
String data = null;
byte[] b = null;
for (String key : params.keySet()) {
sb.append(key).append('=').append((String)params.get(key)).append('&');
}
data = sb.substring(0, sb.length() - 1);
b = data.getBytes("UTF-8");
OutputStream out = con.getOutputStream();
out.write(b);
out.flush();
out.close();
}
InputStream in = con.getInputStream();
String responseBody = FileUtil.readAll(in);
return responseBody;
}
public static String jpost(String uriString, Map params)
throws Exception
{
URL url = new URL(uriString);
HttpURLConnection con = (HttpURLConnection)url.openConnection();
con.setDoOutput(true);
con.setDoInput(true);
con.setRequestMethod(RequstMethod.POST.value());
con.setRequestProperty("Content-Type", "application/json");
con.setUseCaches(false);
con.setInstanceFollowRedirects(true);
if (params != null) {
StringBuffer sb = new StringBuffer();
String data = null;
byte[] b = null;
for (String key : params.keySet()) {
sb.append(key).append('=').append((String)params.get(key)).append('&');
}
data = sb.substring(0, sb.length() - 1);
b = data.getBytes("UTF-8");
OutputStream out = con.getOutputStream();
out.write(b);
out.flush();
out.close();
}
InputStream in = con.getInputStream();
String responseBody = FileUtil.readAll(in);
return responseBody;
}
public static String sendGet(String url, String param)
{
String result = "";
BufferedReader in = null;
try {
String urlNameString = url + "?" + param;
URL realUrl = new URL(urlNameString);
URLConnection connection = realUrl.openConnection();
connection.setRequestProperty("accept", "*/*");
connection.setRequestProperty("Content-Type", "application/json");
connection.setRequestProperty("connection", "Keep-Alive");
connection.setRequestProperty("user-agent",
"Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");
connection.connect();
Map map = connection.getHeaderFields();
// for (String key : map.keySet()) {
// System.out.println(key + "--->" + map.get(key));
// }
in = new BufferedReader(new InputStreamReader(
connection.getInputStream(), "utf-8"));
String line;
while ((line = in.readLine()) != null)
{
//String line;
result = result + line;
}
} catch (Exception e) {
System.out.println("����GET��������쳣��" + e);
e.printStackTrace();
try
{
if (in != null)
in.close();
}
catch (Exception e2) {
e2.printStackTrace();
}
}
finally
{
try
{
if (in != null)
in.close();
}
catch (Exception e2) {
e2.printStackTrace();
}
}
return result;
}
public static String sendPost(String url, String param)
{
PrintWriter out = null;
BufferedReader in = null;
String result = "";
try {
URL realUrl = new URL(url);
URLConnection conn = realUrl.openConnection();
conn.setRequestProperty("Content-Type", "application/xml");
conn.setDoOutput(true);
conn.setDoInput(true);
out = new PrintWriter(conn.getOutputStream());
out.print(param);
out.flush();
in = new BufferedReader(
new InputStreamReader(conn.getInputStream()));
String line;
while ((line = in.readLine()) != null)
{
//String line;
result = result + line;
}
} catch (Exception e) {
System.out.println("���� POST ��������쳣��" + e);
e.printStackTrace();
try
{
if (out != null) {
out.close();
}
if (in != null)
in.close();
}
catch (IOException ex)
{
ex.printStackTrace();
}
}
finally
{
try
{
if (out != null) {
out.close();
}
if (in != null)
in.close();
}
catch (IOException ex)
{
ex.printStackTrace();
}
}
return result;
}
public static enum RequstMethod
{
GET("GET"), POST("POST");
private String value;
private RequstMethod(String value) {
this.value = value;
}
public String value() {
return this.value;
}
}
} package com.wlsq.kso.util;
import java.io.ByteArrayInputStream;
import java.io.InputStream;
import java.util.HashMap;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import org.jdom.Document;
import org.jdom.Element;
import org.jdom.input.SAXBuilder;
import com.alibaba.fastjson.JSONObject;
public class XmltoJsonUtil {
public static String xml2JSON(String xml) {
JSONObject obj = new JSONObject();
try {
InputStream is = new ByteArrayInputStream(xml.getBytes("utf-8"));
SAXBuilder sb = new SAXBuilder();
Document doc = sb.build(is);
Element root = doc.getRootElement();
obj.put(root.getName(), iterateElement(root));
return obj.toString();
} catch (Exception e) {
e.printStackTrace();
return null;
}
}
private static Map iterateElement(Element element) {
List jiedian = element.getChildren();
Element et = null;
Map obj = new HashMap();
List list = null;
for (int i = 0; i < jiedian.size(); i++) {
list = new LinkedList();
et = (Element) jiedian.get(i);
if (et.getTextTrim().equals("")) {
if (et.getChildren().size() == 0)
continue;
if (obj.containsKey(et.getName())) {
list = (List) obj.get(et.getName());
}
list.add(iterateElement(et));
obj.put(et.getName(), list);
} else {
if (obj.containsKey(et.getName())) {
list = (List) obj.get(et.getName());
}
list.add(et.getTextTrim());
obj.put(et.getName(), list);
}
}
return obj;
}
}
MyMd5Util 类
package com.wlsq.kso.util;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
/**
* @author fengcai ouyang
* @version V1.0
* @Description:
* @date 2016/7/23 18:48
* @Update by: ${todo}
*/
public class MyMd5Util {
private static MessageDigest sMd5MessageDigest;
private static StringBuilder sStringBuilder;
private MyMd5Util() {
}
public static String md5(String s) {
sMd5MessageDigest.reset();
sMd5MessageDigest.update(s.getBytes());
byte[] digest = sMd5MessageDigest.digest();
sStringBuilder.setLength(0);
for (int i = 0; i < digest.length; ++i) {
int b = digest[i] & 255;
if (b < 16) {
sStringBuilder.append('0');
}
sStringBuilder.append(Integer.toHexString(b));
}
return sStringBuilder.toString().toUpperCase();
}
static {
try {
sMd5MessageDigest = MessageDigest.getInstance("MD5");
} catch (NoSuchAlgorithmException var1) {
}
sStringBuilder = new StringBuilder();
}
}