一、微信APP支付接入商户服务中心

[申请流程指引] (https://open.weixin.qq.com/cgi-bin/showdocument?action=dir_list&t=resource/res_list&verify=1&id=open1419317780&token=84f23b4e9746c5963128711f225476cfd49ccf8c&lang=zh_CN)

二、开始开发

1、配置相关的配置信息

1.1、配置appid（Android）、mch_id（ios）、微信支付后的回调地址

sys.properties配置文件: appid=wx***************1 mch_id=1********2 notify_url=http://6*.***.***.**/returnmsg.do //回调通知的地址,一定是要可以直接访问的地址

2、微信支付–下单

@ResponseBody@RequestMapping(value = "/weixinpay.do", produces = "text/html;charset=UTF-8",method={RequestMethod.POST}) public static String weixinpay(String body, //商品描述 String detail, //商品详情 String attach, //附加数据，在查询API和支付通知中原样返回，该字段主要用于商户携带订单的自定义数据 String out_trade_no, //商户系统内部的订单号,32个字符内、可包含字母, 其他说明见商户订单号 String total_price, //订单总金额，单位为分，详见支付金额 String spbill_create_ip //用户端实际ip ) throws Exception { WeixinConfigUtils config = new WeixinConfigUtils(); //参数组 String appid = config.appid;//微信开放平台审核通过的应用APPID System.out.println("appid是："+appid); String mch_id = config.mch_id; System.out.println("mch_id是："+mch_id); String nonce_str = RandCharsUtils.getRandomString(16); System.out.println("随机字符串是："+nonce_str); body = body;//"测试微信支付0.01_2"; detail = detail;//"0.01_元测试开始"; //attach = attach;//"备用参数，先留着，后面会有用的"; //String out_trade_no = OrderUtil.getOrderNo();//"2015112500001000811017342394"; double totalfee =0; try{ totalfee=Double.parseDouble(total_price);////单位是分，即是0.01元 }catch (Exception e) { totalfee=0; } int total_fee=(int) (totalfee*100); spbill_create_ip = spbill_create_ip;//"127.0.0.1"; String time_start = RandCharsUtils.timeStart(); System.out.println(time_start); String time_expire = RandCharsUtils.timeExpire(); System.out.println(time_expire); String notify_url = config.notify_url; System.out.println("notify_url是："+notify_url); String trade_type = "APP"; //参数：开始生成签名 SortedMap<Object,Object> parameters = new TreeMap<Object,Object>(); parameters.put("appid", appid); parameters.put("mch_id", mch_id); parameters.put("nonce_str", nonce_str); parameters.put("body", body); //parameters.put("nonce_str", nonce_str); parameters.put("detail", detail); parameters.put("attach", attach); parameters.put("out_trade_no", out_trade_no); parameters.put("total_fee", total_fee); parameters.put("time_start", time_start); parameters.put("time_expire", time_expire); parameters.put("notify_url", notify_url); parameters.put("trade_type", trade_type); parameters.put("spbill_create_ip", spbill_create_ip); String sign = WXSignUtils.createSign("UTF-8", parameters); System.out.println("签名是："+sign); Unifiedorder unifiedorder = new Unifiedorder(); unifiedorder.setAppid(appid); unifiedorder.setMch_id(mch_id); unifiedorder.setNonce_str(nonce_str); unifiedorder.setSign(sign); unifiedorder.setBody(body); unifiedorder.setDetail(detail); unifiedorder.setAttach(attach); unifiedorder.setOut_trade_no(out_trade_no); unifiedorder.setTotal_fee(total_fee); unifiedorder.setSpbill_create_ip(spbill_create_ip); unifiedorder.setTime_start(time_start); unifiedorder.setTime_expire(time_expire); unifiedorder.setNotify_url(notify_url); unifiedorder.setTrade_type(trade_type); System.out.println(MD5Utils.md5("fenxiangzhuyi") + "========================"); //构造xml参数 String xmlInfo = HttpXmlUtils.xmlInfo(unifiedorder); String wxUrl = "https://api.mch.weixin.qq.com/pay/unifiedorder"; String method = "POST"; String weixinPost = HttpXmlUtils.httpsRequest(wxUrl, method, xmlInfo).toString(); System.out.println(weixinPost); ParseXMLUtils.jdomParseXml(weixinPost); String json = JsonUtil.xml2jsonString(weixinPost); System.out.println("========================================================="); Bean b = JsonUtil.getSingleBean(json, Bean.class); if(null!=b){ WeixinOrder weixin = b.getXml(); //参数：开始生成签名 SortedMap<Object,Object> par = new TreeMap<Object,Object>(); par.put("appid", weixin.getAppid()); par.put("partnerid", weixin.getMch_id()); par.put("prepayid", weixin.getPrepay_id()); par.put("package", "Sign=WXPay"); par.put("noncestr", weixin.getNonce_str()); //时间戳 Date date = new Date(); long time = date.getTime(); //mysq 时间戳只有10位 要做处理 String dateline = time + ""; dateline = dateline.substring(0, 10); par.put("timestamp", dateline); String signnew = WXSignUtils.createSign("UTF-8", par); System.out.println("再次签名是："+signnew); SetPay setPay = new SetPay(); setPay.setAppid(weixin.getAppid()); setPay.setPartnerid(weixin.getMch_id()); setPay.setPrepayid(weixin.getPrepay_id()); setPay.setNoncestr(weixin.getNonce_str()); setPay.setTimestamp(dateline); setPay.setSign(signnew); setPay.setPack("Sign=WXPay"); JSONObject js = JSONObject.fromObject(setPay); StringBuilder msg = new StringBuilder(); msg.append("{\"code\":\"1\","); msg.append("\"msg\":\"查询成功！\","); msg.append("\"datas\":"); msg.append(js.toString()); msg.append("}"); System.out.println(js); return msg.toString(); } StringBuilder msg = new StringBuilder(); msg.append("{\"code\":\"1\","); msg.append("\"msg\":\"查询成功！\","); msg.append("\"datas\":"); msg.append("支付失败！"); msg.append("}"); return msg.toString(); }

2.1、微信支付签名算法sign

package com.wx.weixincontroller.pay.weixin.Utils;import java.util.Iterator;import java.util.Map;import java.util.Set;import java.util.SortedMap;import com.wx.weixin.utils.MD5Utils;/** * 微信支付签名 * @author iYjrg_xiebin * @date 2016年10月25日下午4:47:07 */public class WXSignUtils { //http://mch.weixin.qq.com/wiki/doc/api/index.php?chapter=4_3 //商户Key：改成公司申请的即可 //32位密码设置地址：http:///pub_v2/pay/notify.v2.php</notify_url> <openid>oUpF8uMuAJO_M2pxb1Q9zNjWeS6o</openid> <out_trade_no>1415659990</out_trade_no> <spbill_create_ip>14.23.150.211</spbill_create_ip> <total_fee>1</total_fee> <trade_type>JSAPI</trade_type> <sign>0CB01533B8C1EF103065174F50BCA001</sign> </xml> */ if(unifiedorder!=null){ StringBuffer bf = new StringBuffer(); bf.append("<xml>"); bf.append("<appid><![CDATA["); bf.append(unifiedorder.getAppid()); bf.append("]]></appid>"); bf.append("<mch_id><![CDATA["); bf.append(unifiedorder.getMch_id()); bf.append("]]></mch_id>"); bf.append("<nonce_str><![CDATA["); bf.append(unifiedorder.getNonce_str()); bf.append("]]></nonce_str>"); bf.append("<sign><![CDATA["); bf.append(unifiedorder.getSign()); bf.append("]]></sign>"); bf.append("<body><![CDATA["); bf.append(unifiedorder.getBody()); bf.append("]]></body>"); bf.append("<detail><![CDATA["); bf.append(unifiedorder.getDetail()); bf.append("]]></detail>"); bf.append("<attach><![CDATA["); bf.append(unifiedorder.getAttach()); bf.append("]]></attach>"); bf.append("<out_trade_no><![CDATA["); bf.append(unifiedorder.getOut_trade_no()); bf.append("]]></out_trade_no>"); bf.append("<total_fee><![CDATA["); bf.append(unifiedorder.getTotal_fee()); bf.append("]]></total_fee>"); bf.append("<spbill_create_ip><![CDATA["); bf.append(unifiedorder.getSpbill_create_ip()); bf.append("]]></spbill_create_ip>"); bf.append("<time_start><![CDATA["); bf.append(unifiedorder.getTime_start()); bf.append("]]></time_start>"); bf.append("<time_expire><![CDATA["); bf.append(unifiedorder.getTime_expire()); bf.append("]]></time_expire>"); bf.append("<notify_url><![CDATA["); bf.append(unifiedorder.getNotify_url()); bf.append("]]></notify_url>"); bf.append("<trade_type><![CDATA["); bf.append(unifiedorder.getTrade_type()); bf.append("]]></trade_type>"); bf.append("</xml>"); return bf.toString(); } return ""; } /** * post请求并得到返回结果 * @param requestUrl * @param requestMethod * @param output * @return */ public static String httpsRequest(String requestUrl, String requestMethod, String output) { try{ URL url = new URL(requestUrl); HttpsURLConnection connection = (HttpsURLConnection) url.openConnection(); connection.setDoOutput(true); connection.setDoInput(true); connection.setUseCaches(false); connection.setRequestMethod(requestMethod); if (null != output) { OutputStream outputStream = connection.getOutputStream(); outputStream.write(output.getBytes("UTF-8")); outputStream.close(); } // 从输入流读取返回内容 InputStream inputStream = connection.getInputStream(); InputStreamReader inputStreamReader = new InputStreamReader(inputStream, "utf-8"); BufferedReader bufferedReader = new BufferedReader(inputStreamReader); String str = null; StringBuffer buffer = new StringBuffer(); while ((str = bufferedReader.readLine()) != null) { buffer.append(str); } bufferedReader.close(); inputStreamReader.close(); inputStream.close(); inputStream = null; connection.disconnect(); return buffer.toString(); }catch(Exception ex){ ex.printStackTrace(); } return ""; }}

3、微信支付–回调通知业务处理

//通知处理类 @ResponseBody @RequestMapping(value = "/returnmsg.do", produces = "text/html;charset=UTF-8",method={RequestMethod.POST}) public String returnmsg(HttpServletRequest request, HttpServletResponse response) throws Exception { // 解析结果存储在HashMap Map<String, String> map = new HashMap<String, String>(); InputStream inputStream = request.getInputStream(); // 读取输入流 SAXReader reader = new SAXReader(); Document document = reader.read(inputStream); // 得到xml根元素 Element root = document.getRootElement(); // 得到根元素的所有子节点 List<Element> elementList = root.elements(); // 遍历所有子节点 for (Element e : elementList) { map.put(e.getName(), e.getText()); } JSONObject json = JSONObject.fromObject(map); System.out.println("===消息通知的结果：" + json.toString() + "=========================="); System.out.println("===return_code===" + map.get("return_code")); System.out.println("===return_msg===" + map.get("return_msg")); System.out.println("===out_trade_no===" + map.get("out_trade_no")); //验证签名的过程 //判断是否支付成功 if(map.get("return_code").equals("SUCCESS")) { /** *支付成功之后的业务处理 */ // 释放资源 inputStream.close(); inputStream = null; //bis.close(); return "SUCCESS"; } } if (map.get("return_code").equals("FAIL")) { /** *支付失败后的业务处理 */ // 释放资源 inputStream.close(); inputStream = null; return "SUCCESS"; } } // 释放资源 inputStream.close(); inputStream = null; return "SUCCESS"; }

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