官网文档和demo代码下载地址
https://mp.weixin.qq.com/htmledition/res/bussiness-faq/wx_app_pay.zip
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基础常量代码
package com.xiaoshuai.util;/** * 配置类 * @author 小帅帅 * @date 2016-7-5下午01:40:53 */public class ConfigUtil { /** * 服务号相关信息 */ public final static String APPID = "";//服务号的应用号 public final static String APP_SECRECT = "";//服务号的应用密码 public final static String TOKEN = "weixinCourse";//服务号的配置token public final static String MCH_ID = "";//商户号 public final static String API_KEY = "";//API密钥 public final static String SIGN_TYPE = "MD5";//签名加密方式 public final static String CERT_PATH = "";//微信支付证书存放路径地址 //微信支付统一接口的回调action public final static String NOTIFY_URL = ""; //微信支付成功支付后跳转的地址 public final static String SUCCESS_URL = "http://www.xiaoshuaishuai.com"; //oauth2授权时回调action public final static String REDIRECT_URI = ""; /** * 微信基础接口地址 */ //获取token接口(GET) public final static String TOKEN_URL = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=APPID&secret=APPSECRET"; //oauth2授权接口(GET) public final static String OAUTH2_URL = "https://api.weixin.qq.com/sns/oauth2/access_token?appid=APPID&secret=SECRET&code=CODE&grant_type=authorization_code"; //刷新access_token接口（GET） public final static String REFRESH_TOKEN_URL = "https://api.weixin.qq.com/sns/oauth2/refresh_token?appid=APPID&grant_type=refresh_token&refresh_token=REFRESH_TOKEN"; /** * 微信支付接口地址 */ //微信支付统一接口(POST) public final static String UNIFIED_ORDER_URL = "https://api.mch.weixin.qq.com/pay/unifiedorder"; //微信退款接口(POST) public final static String REFUND_URL = "https://api.mch.weixin.qq.com/secapi/pay/refund"; //订单查询接口(POST) public final static String CHECK_ORDER_URL = "https://api.mch.weixin.qq.com/pay/orderquery"; //关闭订单接口(POST) public final static String CLOSE_ORDER_URL = "https://api.mch.weixin.qq.com/pay/closeorder"; //退款查询接口(POST) public final static String CHECK_REFUND_URL = "https://api.mch.weixin.qq.com/pay/refundquery"; //对账单接口(POST) public final static String DOWNLOAD_BILL_URL = "https://api.mch.weixin.qq.com/pay/downloadbill"; //短链接转换接口(POST) public final static String SHORT_URL = "https://api.mch.weixin.qq.com/tools/shorturl"; //接口调用上报接口(POST) public final static String REPORT_URL = "https://api.mch.weixin.qq.com/payitil/report";} -
支付工具类代码
package com.xiaoshuai.util;import java.util.Date;import java.util.Iterator;import java.util.Map;import java.util.Random;import java.util.Set;import java.util.SortedMap;import java.util.TreeMap;import org.slf4j.Logger;import org.slf4j.LoggerFactory;import com.alibaba.fastjson.*;/** * 支付类 * @author 小帅帅 * @date 2016-7-5下午01:41:54 */public class PayCommonUtil { @SuppressWarnings("unused") private static Logger log = LoggerFactory.getLogger(PayCommonUtil.class); public static String CreateNoncestr(int length) { String chars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"; String res = ""; for (int i = 0; i < length; i++) { Random rd = new Random(); res += chars.indexOf(rd.nextInt(chars.length() - 1)); } return res; } public static String CreateNoncestr() { String chars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"; String res = ""; for (int i = 0; i < 16; i++) { Random rd = new Random(); res += chars.charAt(rd.nextInt(chars.length() - 1)); } return res; } /** * @author 小帅帅 * @date 2016-7-5下午01:41:54 * @Description：sign签名 * @param characterEncoding 编码格式 * @param parameters 请求参数 * @return */ @SuppressWarnings("unchecked") public static String createSign(String characterEncoding,SortedMap"); Set es = parameters.entrySet(); Iterator it = es.iterator(); while(it.hasNext()) { Map.Entry entry = (Map.Entry)it.next(); String k = (String)entry.getKey(); String v = (String)entry.getValue(); if ("attach".equalsIgnoreCase(k)||"body".equalsIgnoreCase(k)||"sign".equalsIgnoreCase(k)) { sb.append("<"+k+">"+" "); }else { sb.append("<"+k+">"+v+" "); } } sb.append(" "); return sb.toString(); } /** * @author 小帅帅 * @date 2016-7-5下午01:41:54 * @Description：返回给微信的参数 * @param return_code 返回编码 * @param return_msg 返回信息 * @return */ public static String setXML(String return_code, String return_msg) { return " -
请求业务代码
package com.xiaoshuai.controller;import java.io.IOException;import java.io.PrintWriter;import java.math.BigDecimal;import java.util.Map;import java.util.Random;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import org.jdom.JDOMException;import org.springframework.stereotype.Controller;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.ResponseBody;import com.xiaoshuai.util.CommonUtil;import com.xiaoshuai.util.PayCommonUtil;/** * 支付请求Controller * @author 小帅帅 * @date 2016-7-5下午02:08:47 */@Controller@RequestMapping(value="pay")public class WeiXinPayController { /** * * index(支付首页) * @return */ @RequestMapping(value="index") public String index(){ return "pay"; } /** * * payOrder(调起微信支付) * @param request * @param totalFee //支付金额 * @param body //支付描述 * @return * @throws Exception */ @RequestMapping(value="payOrder") @ResponseBody public String payOrder(HttpServletRequest request,double totalFee,String body) throws Exception{ String resultString=null; BigDecimal fee = new BigDecimal(totalFee); // 微信支付参数以分为单位。 fee = fee.multiply(new BigDecimal(100)); String payFee=fee.longValue()+""; //1 生成预支付id String ipAddress=request.getRemoteAddr(); String orderNumber=System.currentTimeMillis()+new Random().nextInt(100)+""; String openid="o2VKNju8JqCeGVoEWJ1S8Ue_up8E"; //调用网页授权接口获取 try { Map - 项目结构。只是简单的基础代码
5.pay.jsp
<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%><%String path = request.getContextPath();String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";%>微信支付 支付金额: 支付描述:
