回调函数
@RequestMapping("/toPay")
public String toPay(HttpServletRequest request, HttpServletResponse response, Model model){
System.out.println("toPay success");
try {
String orderId = request.getParameter("orderId");
System.out.println("in toPay,orderId:" + orderId);
String totalFeeStr = request.getParameter("totalFee");
Float totalFee = 0.0f;
if(StringUtils.isNotBlank(totalFeeStr)){
totalFee = new Float(totalFeeStr);
}
//网页授权后获取传递的参数
//String userId = request.getParameter("userId");
String code = request.getParameter("code");
System.out.println("code:"+code);
//System.out.println("userId:"+userId);
//获取统一下单需要的openid
String openId ="";
String URL = "https://api.weixin.qq.com/sns/oauth2/access_token?appid="
+ WxPayConfig.appid + "&secret=" + WxPayConfig.appsecret + "&code=" + code + "&grant_type=authorization_code";
System.out.println("URL:"+URL);
JSONObject jsonObject = CommonUtil.httpsRequest(URL, "GET", null);
if (null != jsonObject) {
openId = jsonObject.getString("openid");
System.out.println("openId:" + openId);
}
//获取openId后调用统一支付接口https://api.mch.weixin.qq.com/pay/unifiedorder
//随机数
//String nonce_str = "1add1a30ac87aa2db72f57a2375d8fec";
String nonce_str = UUID.randomUUID().toString().replaceAll("-", "");
//商品描述
String body = orderId;
//商户订单号
String out_trade_no = orderId;
//订单生成的机器 IP
String spbill_create_ip = request.getRemoteAddr();
//总金额
//TODO
Integer total_fee = Math.round(totalFee*100);
//Integer total_fee = 1;
//商户号
//String mch_id = partner;
//子商户号 非必输
//String sub_mch_id="";
//设备号 非必输
//String device_info="";
//附加数据
//String attach = userId;
//总金额以分为单位，不带小数点
//int total_fee = intMoney;
//订 单 生 成 时 间 非必输
//String time_start ="";
//订单失效时间 非必输
//String time_expire = "";
//商品标记 非必输
//String goods_tag = "";
//非必输
//String product_id = "";
//这里notify_url是 支付完成后微信发给该链接信息，可以判断会员是否支付成功，改变订单状态等。
String notify_url = baseUrl + "/wx/notifyUrl.do";
SortedMap<String, String> packageParams = new TreeMap<String, String>();
packageParams.put("appid", WxPayConfig.appid);
packageParams.put("mch_id", WxPayConfig.partner);
packageParams.put("nonce_str", nonce_str);
packageParams.put("body", body);
packageParams.put("out_trade_no", out_trade_no);
packageParams.put("total_fee", total_fee+"");
packageParams.put("spbill_create_ip", spbill_create_ip);
packageParams.put("notify_url", notify_url);
packageParams.put("trade_type", WxPayConfig.trade_type);
packageParams.put("openid", openId);
RequestHandler reqHandler = new RequestHandler(request, response);
reqHandler.init(WxPayConfig.appid, WxPayConfig.appsecret, WxPayConfig.partnerkey);
String sign = reqHandler.createSign(packageParams);
System.out.println("sign:"+sign);
String xml="<xml>"+
"<appid>"+WxPayConfig.appid+"</appid>"+
"<mch_id>"+WxPayConfig.partner+"</mch_id>"+
"<nonce_str>"+nonce_str+"</nonce_str>"+
"<sign>"+sign+"</sign>"+
"<body><![CDATA["+body+"]]></body>"+
"<out_trade_no>"+out_trade_no+"</out_trade_no>"+
"<total_fee>"+total_fee+""+"</total_fee>"+
"<spbill_create_ip>"+spbill_create_ip+"</spbill_create_ip>"+
"<notify_url>"+notify_url+"</notify_url>"+
"<trade_type>"+WxPayConfig.trade_type+"</trade_type>"+
"<openid>"+openId+"</openid>"+
"</xml>";
System.out.println("xml："+xml);
String createOrderURL = "https://api.mch.weixin.qq.com/pay/unifiedorder";
String prepay_id="";
try {
prepay_id = WeixinPayUtil.getPayNo(createOrderURL, xml);
System.out.println("prepay_id:" + prepay_id);
if(prepay_id.equals("")){
request.setAttribute("ErrorMsg", "统一支付接口获取预支付订单出错");
response.sendRedirect("error.jsp");
}
} catch (Exception e1) {
e1.printStackTrace();
}
SortedMap<String, String> finalpackage = new TreeMap<String, String>();
String timestamp = Sha1Util.getTimeStamp();
String packages = "prepay_id="+prepay_id;
finalpackage.put("appId", WxPayConfig.appid);
finalpackage.put("timeStamp", timestamp);
finalpackage.put("nonceStr", nonce_str);
finalpackage.put("package", packages);
finalpackage.put("signType", WxPayConfig.signType);
String finalsign = reqHandler.createSign(finalpackage);
System.out.println("/jsapi?appid="+WxPayConfig.appid+"&timeStamp="+timestamp+"&nonceStr="+nonce_str+"&package="+packages+"&sign="+finalsign);
model.addAttribute("appid", WxPayConfig.appid);
model.addAttribute("timeStamp", timestamp);
model.addAttribute("nonceStr", nonce_str);
model.addAttribute("packageValue", packages);
model.addAttribute("sign", finalsign);
model.addAttribute("bizOrderId", orderId);
model.addAttribute("orderId", orderId);
model.addAttribute("payPrice", total_fee);
System.out.println("orderId:---------------"+orderId);
return "/jsapi";
} catch (NumberFormatException e) {
e.printStackTrace();
}
return null;
}