微信支付的步骤集合一样的
1、统一下单
2、支付结果通知
3、查询订单
一、统一下单
统一下单需要的参数 查看对应网址https://pay.weixin.qq.com/wiki/doc/api/jsapi.php?chapter=9_1
其中需要用到openid，openid的获取要先获取授权code，然后通过code获取openid
获取code 我用的是静默授权
/**微信网页授权获取CODE**/ public static String WEB_OAUTH_URL = "https://open.weixin.qq.com/connect/oauth2/authorize?appid=APPID&redirect_uri=REDIRECT_URI&response_type=code&scope=SCOPE&state=STATE#wechat_redirect";
//弹出授权页面，可通过openid拿到昵称、性别、所在地。并且，即使在未关注的情况下，只要用户授权，也能获取其信息 public static final String SNSAPI_USERINFO = "snsapi_userinfo"; //不弹出授权页面，直接跳转，只能获取用户openid 静默授权 public static final String SNSAPI_BASE = "snsapi_base";
@RequestMapping(params = "getCode",method ={RequestMethod.GET, RequestMethod.POST}) public void getCode(HttpServletRequest request,HttpServletResponse response) throws Exception{ 参数根据自己的需求，自己传的什么获取什么，这些是我要用的。可以不用传参数 String goodsid = request.getParameter("goodsId"); //String type=request.getParameter("type"); // String priceInterval=request.getParameter("priceInterval"); //获取商品价格 绿色字的获取授权code必须填的 1跳转路径；2APPID；3用户授权 String pprice = request.getParameter("pprice");
获取到一个资源重定向到这个资源路径中去，只能用微信浏览器打开
String resource=oauthurl( ConfigUtil.getProperty("weChat_redirect_URI")+"&goodsid="+goodsid+"&pprice="+pprice+"&type="+type+"&priceInterval="+priceInterval, ConfigUtil.getProperty("appId"),OAuth2Util.SNSAPI_BASE); System.out.println(resource); response.sendRedirect(resource); }
//授权路径做编码
public static String oauthurl(String targetUrl, String appid,String scope) { String shareurl = ""; String encodeTargetURL = ""; try { encodeTargetURL = URLEncoder.encode(targetUrl, "UTF-8"); } catch (UnsupportedEncodingException e) { //这种一般不做处理 e.printStackTrace(); } shareurl = WeiXinOpens.WEB_OAUTH_URL.replace("APPID", appid).replace("REDIRECT_URI", encodeTargetURL).replace("SCOPE", scope); return shareurl; }
/** * 通过code获取openid 统一生成订单。这个方法就是上面获取code时填写的跳转路径 * @param request * @param response * @return * @throws Exception */ @RequestMapping(params = "buyCourse",method ={RequestMethod.GET, RequestMethod.POST}) public ModelAndView buyCourse(HttpServletRequest request, HttpServletResponse response) throws Exception { JSONObject object = null; //获取openID String openId = ResourceUtil.getUserOpenId(); String orderid=UUIDGenerator.generate(); String appid = ConfigUtil.getProperty("appId"); String secret = ConfigUtil.getProperty("appSecret");
//获取code
String code =request.getParameter("code"); String type=request.getParameter("type"); //获取订阅周期，每个月按30天算，年按365天。当type=4dates不等于0时保存到期时间 String priceInterval=request.getParameter("priceInterval"); //判断openID是否为空，为空根据code获取token和openID if(null==openId||"".equals(openId)){ Map<String,Object> maptoken = new RemoteWeixinMethod().getOauth2AccessToken(new Oauth2CodePojo(appid, secret, code)); openId = (String)maptoken.get("openid"); } request.getSession().setAttribute(WeiXinConstants.USER_OPENID, openId); //终端IP String remoteAddr = request.getRemoteAddr(); //获取商品ID String goodsid = request.getParameter("goodsid"); //加入订单详情 GoodsInfomationEntity goodsInfomation=goodsInfomationDao.getByEbookId(goodsid); //获取商品价格 String price = request.getParameter("pprice"); BigDecimal coursePrice =new BigDecimal(price); String sn = orderid; OrderEntity orderEntity = orderDao.getorder(openId, goodsid); // 调用pay包中的方法生成微信预支付信息 //商品描述 String description = "课程购买"; //统一下单生成课程购买订单，并返回微信需要的预支付信息 得到prepayid Map<String,String> map =weixinPrePay.weixinPrePay(sn, coursePrice, description, remoteAddr,openId); //获取订单信息反给页面 把通过prepayid进行二次签名的信息返给页面 object = weixinPrePay.getPayParam(map); String returnCode = map.get("return_code"); if(returnCode.equalsIgnoreCase("FAIL")){ String return_msg=object.getString("return_msg"); request.setAttribute("return_msg", return_msg); return new ModelAndView("weixin/guanjia/minimail/pay"); }else{ if(null==orderEntity){ OrderEntity newCartOrder = new OrderEntity(); newCartOrder.setOrderid(sn); newCartOrder.setOpenid(openId); newCartOrder.setGoodsid(goodsid); newCartOrder.setPaymode(1l); newCartOrder.setStatus(0l); newCartOrder.setPrice(coursePrice); List<OrderEntity> orderEntityList=orderDao.getByStatus(); if(null!=orderEntityList){ //删除没有支付的订单及详情 for (OrderEntity orderEntity2 : orderEntityList) { OrderDetailEntity orderDetailEntity=orderDetailDao.getorderDetail(orderEntity2.getId()); orderService.delete(orderEntity2); if(null!=orderDetailEntity){ orderdetailService.delete(orderDetailEntity); } } } orderService.save(newCartOrder); OrderDetailEntity orderDetail=new OrderDetailEntity(); orderDetail.setAuther(goodsInfomation.getAuther()); orderDetail.setAutherid(goodsInfomation.getAutherid()); orderDetail.setGoodsid(goodsid); orderDetail.setGoodsname(goodsInfomation.getGoodname()); orderDetail.setPicture(goodsInfomation.getPicture()); orderDetail.setPprice(coursePrice); orderDetail.setOrderid(newCartOrder.getId()); orderdetailService.save(orderDetail); }else{ orderEntity.setId(orderEntity.getId()); orderService.saveOrUpdate(orderEntity); } //获取得到的结果传入前台页面 调起支付 String weixinappid=object.getString("appid"); String partnerid=object.getString("partnerid"); String packagewx=object.getString("package"); String noncestr=object.getString("noncestr"); String timestamp=object.getString("timestamp"); String sign=object.getString("sign"); request.setAttribute("appid", weixinappid); //收款方 request.setAttribute("partnerid", partnerid); request.setAttribute("package", packagewx); request.setAttribute("noncestr", noncestr); request.setAttribute("timestamp", timestamp); request.setAttribute("sign", sign); request.setAttribute("pprice", coursePrice); request.setAttribute("orderid", sn); request.setAttribute("openId", openId); request.setAttribute("goodsid", goodsid); request.setAttribute("type", type); request.setAttribute("priceInterval", priceInterval); request.setAttribute("picture", goodsInfomation.getPicture()); request.setAttribute("cxUrl", ConfigUtil.getProperty("weixin_cxUrl")); request.setAttribute("appPictureUrl",ConfigUtil.getProperty("APP_Picture_url"));
//跳到支付页面
return new ModelAndView("weixin/guanjia/minimail/pay"); } }
统一下单，获取签名，与调起时的二次生成签名
public class WinxinAppPrePay { private PayCommonUtil payCommonUtil; public String norifyUrl; public Map<String, String> weixinPrePay(String sn, BigDecimal totalAmount, String description, String remoteAddr,String openid) { SortedMap parameterMap = new TreeMap(); //公众账号ID parameterMap.put("appid", this.payCommonUtil.getAppId()); //商户号 parameterMap.put("mch_id", this.payCommonUtil.getMchId()); //设备号 parameterMap.put("device_info", this.payCommonUtil.getDeviceInfo()); //随机字符串 parameterMap.put("nonce_str", this.payCommonUtil.getRandomString(32)); //签名类型 parameterMap.put("sign_type", "MD5"); try { //如：小张南山店-超市 description = new String(description.getBytes("utf-8")); } catch (UnsupportedEncodingException e1) { e1.printStackTrace(); } parameterMap.put("body", StringUtils.abbreviate(description.replaceAll( "[^0-9a-zA-Z\\u4e00-\\u9fa5 ]", ""), 600)); //商户订单号 parameterMap.put("out_trade_no", sn); //用户标识 parameterMap.put("openid", openid); //标价币种 parameterMap.put("fee_type", "CNY"); BigDecimal total = totalAmount.multiply(new BigDecimal(100)); DecimalFormat df = new DecimalFormat("0"); //标价金额 parameterMap.put("total_fee", df.format(total)); //终端IP parameterMap.put("spbill_create_ip", remoteAddr); //异步接收微信支付结果通知的回调地址，通知url必须为外网可访问的url，不能携带参数。 parameterMap.put("notify_url", this.norifyUrl); //交易类型 parameterMap.put("trade_type", "JSAPI"); //通过签名算法计算得出的签名值，详见签名生成算法 第一次签名 String sign = this.payCommonUtil.createSign("UTF-8", parameterMap); parameterMap.put("sign", sign); //请求xml组装 String requestXML = this.payCommonUtil.getRequestXml(parameterMap); System.out.println(requestXML); //统一下单 获取prepay_id String result = this.payCommonUtil.httpsRequest( "https://api.mch.weixin.qq.com/pay/unifiedorder", "POST", requestXML); System.out.println(result); Map map = null; try { map = this.payCommonUtil.doXMLParse(result); } catch (IOException e) { e.printStackTrace(); } catch (JDOMException e) { e.printStackTrace(); } return map; } public JSONObject getPayParam(Map<String, String> map) { JSONObject payPamams = new JSONObject(); if ((map.containsKey("return_code")) && (((String) map.get("return_code")).equals("SUCCESS"))) { String appid = (String) map.get("appid"); String partnerid = (String) map.get("mch_id"); String prepayid = (String) map.get("prepay_id"); String noncestr = this.payCommonUtil.getRandomString(32); String timestamp = (System.currentTimeMillis() / 1000L) + ""; SortedMap parameterMap = new TreeMap(); parameterMap.put("appId", appid); parameterMap.put("package", "prepay_id=" + prepayid); //随机字符串 parameterMap.put("nonceStr", noncestr); parameterMap.put("signType", "MD5"); parameterMap.put("timeStamp", timestamp); System.out.println("签名准备参数"+parameterMap);
//二次签名 把下面红色字的信息返给统一下单那块，然后传到页面上
String sign = this.payCommonUtil.createSign("UTF-8", parameterMap); payPamams.put("appid", appid); //商户号 payPamams.put("partnerid", partnerid); payPamams.put("package", "prepay_id=" + prepayid); payPamams.put("noncestr", noncestr); payPamams.put("timestamp", timestamp); payPamams.put("signtype", "MD5"); //签名 payPamams.put("sign", sign); System.out.println("生成签名后"+payPamams.getString("sign")); return payPamams; } String return_msg = (String) map.get("return_msg"); payPamams.put("return_msg", return_msg); return payPamams; } public PayCommonUtil getPayCommonUtil() { return this.payCommonUtil; } public void setPayCommonUtil(PayCommonUtil payCommonUtil) { this.payCommonUtil = payCommonUtil; } public String getNorifyUrl() { return this.norifyUrl; } public void setNorifyUrl(String norifyUrl) { this.norifyUrl = norifyUrl; }
//支付页面 <%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%> <%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <%@include file="/context/mytags.jsp"%> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <meta content="yes" name="apple-mobile-web-app-capable"> <meta name='viewport' content='width=device-width, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0' /> <title>商品支付</title> <!--2017年6月27日,zq--> <style type="text/css"> body{ margin:0px auto; padding:0px; background:#EBEBEB; font-family:"微软雅黑"; font-size:14px;} .bodydiv{ max-width: 500px; margin: auto;} .acty2{width:98%; height:auto; background:#FFF; margin:auto; margin-top: 10px ;padding:5px 0px;box-shadow: 0px 0px 5px #000000;} .acty2 .diva{width:98%; height:auto; margin: auto;} .acty2 .tup{ width: 100%; background: #FF9900;} .acty2 .diva .p1{ font-size:14px; line-height:16px;} .acty2 .diva .p2{ font-size:14px; line-height:14px; padding-left: 10px; color: #FF0000;} .acty2 .diva .p2 .span1{font-size:12px; text-decoration:line-through; line-height:10px; color:#737373; padding-left: 10px;} .acty2 .diva .p2 .span2{font-size:13px; float: right;color:#737373;margin-right: 20px;} a{ text-decoration:none; color: #000000;} p{font-size:14px;} span{font-size:14px;} .clear{ clear:both;} </style> </head> <script type="text/javascript" src="http://res.wx.qq.com/open/js/jweixin-1.0.0.js"></script> <script type="text/javascript" src="<%=basePath %>/shop/js/mui.min.js"></script> <script type="text/javascript"> function onBridgeReady() { WeixinJSBridge.invoke('getBrandWCPayRequest', { "appId" : "${appid}",//"wx2421b1c4370ec43b", //公众号名称，由商户传入 "timeStamp" : "${timestamp}",//"1395712654", //时间戳，自1970年以来的秒数 "nonceStr" : "${noncestr}",//"e61463f8efa94090b1f366cccfbbb444", //随机串 "package" : "${package}",//"prepay_id=u802345jgfjsdfgsdg888", "signType" : "MD5",//"MD5", //微信签名方式: "paySign" : "${sign}",//"70EA570631E4BB79628FBCA90534C63FF7FADD89" //微信签名 }, function(res) { // 使用以上方式判断前端返回,微信团队郑重提示：res.err_msg将在用户支付成功后返回 ok，但并不保证它绝对可靠。 /* alert(res.err_msg); */ if (res.err_msg == "get_brand_wcpay_request:ok") { //支付成功后跳转到支付结果查询修改订单状态 window.location.href ="${cxUrl}&orderid=${orderid}&goodsid=${goodsid}&priceInterval=${priceInterval}&type=${type}&price=${pprice}"; /* request.getRequestDispatcher("${cxUrl}&orderid=${orderid}").forward(request,response); */ /* response.sendRedirect("${cxUrl}&orderid=${orderid}"); window.location.href ="${cxUrl}&orderid=${orderid}" */ } if (res.err_msg == "get_brand_wcpay_request:cancel") { } if (res.err_msg == "get_brand_wcpay_request:fail") { /* alert(JSON.stringify(res)); */ } }); } function callpay() { if (typeof WeixinJSBridge == "undefined") { if (document.addEventListener) { document.addEventListener('WeixinJSBridgeReady', onBridgeReady, false); } else if (document.attachEvent) { document.attachEvent('WeixinJSBridgeReady', onBridgeReady); document.attachEvent('onWeixinJSBridgeReady', onBridgeReady); } } else { onBridgeReady(); } } mui.init(); var oldback = mui.back; mui.back = function() { mui.currentWebview.opener().show('none'); alert("要返回上一页咯"); oldback(); } </script> <body> <div class="bodydiv"> <div class="acty2"> <div class="diva"> <div class="tup"> <img src="${appPictureUrl}${picture}" width="100%" /> </div> <p class="p2">支付金额：¥${pprice}</p> </div> <div class="clear"></div> </div> <input style="width:100%; background-color:#FE6714; border:0px #FE6714 solid; cursor: pointer; color:white; font-size:16px;" value="立即支付" type="button" οnclick="callpay()" > </div> </body> </html>
