微信支付 java 服务端demo （v3版本app支付 springMVC框架中）
//静态资源
/**
* @author 徐小骥
* @version ：2016-5-9 上午11:43:48
*/
public class WeixinPayConstants {
public static final String appid = "XXXXXX";//在微信开发平台登记的app应用
public static final String appsecret = "XXXXXXXXX";
public static final String partner = "XXXXXXXXX";//商户号
public static final String partnerkey ="XXXXXXXXXXXXXXXXXXXXXXXXXXXXX";//不是商户登录密码，是商户在微信平台设置的32位长度的api秘钥，
public static final String createOrderURL="https://api.mch.weixin.qq.com/pay/unifiedorder";
public static final String backUri="http://XXXXXXXX/api/weixin/topay.jhtml";//微信支付下单地址
public static final String notify_url="http://XXXXXXXXXX/api/weixin/notify.jhtml";//异步通知地址
}
//
/**
* @author 徐小骥
* @version ：2016-5-9 上午11:46:48
*/
@Controller("weixinPayController")
@RequestMapping("/api/weixin")
public class WeixinPayController {
@Resource(name = "memberServiceImpl")
private MemberService memberService;
@Resource(name = "orderServiceImpl")
private RecordsConsumptionService recordsConsumptionService;
//商户相关资料
private static String appid = WeixinPayConstants.appid;
private static String appsecret = WeixinPayConstants.appsecret;
private static String partner = WeixinPayConstants.partner;
private static String partnerkey = WeixinPayConstants.partnerkey;
@RequestMapping(value = "/topay")
@ResponseBody public void topay(HttpServletRequest request,HttpServletResponse response) throws Exception{
request.setCharacterEncoding("UTF-8");
response.setCharacterEncoding("UTF-8");
response.setContentType("text/html;charset=UTF-8");
String orderNo= request.getParameter("Orderid");
String mobile= request.getParameter("mobile");
PrintWriter out = response.getWriter();
String json=null;
JSONObject retMsgJson=new JSONObject();
if(orderNo==null||mobile==null){
retMsgJson.put("msg", "error");
retMsgJson.put("body", "数据请求异常");
json=retMsgJson.toString();
out.write(json);
out.close();
return;
}
Member member=memberService.findListByMobile(mobile);//获取用户数据
Order order=orderService.find(Long.valueOf(orderNo));//获取订单数据
//验证订单与支付会员关系
if(member==null||order==null){
retMsgJson.put("msg", "error");
retMsgJson.put("body", "数据请求异常");
json=retMsgJson.toString();
out.write(json);
out.close();
return;
}
if(!order.getMember().equals(member)){
retMsgJson.put("msg", "error");
retMsgJson.put("body", "无权限处理订单");
json=retMsgJson.toString();
out.write(json);
out.close();
return;
}
if(!order.getPaymentStatus().equals(Order.PaymentStatus.unpaid)){
retMsgJson.put("msg", "error");
retMsgJson.put("body", "订单状态异常");
json=retMsgJson.toString();
out.write(json);
out.close();
return;
}
String userId = member.getId().toString();
String money = order.getAmount().toString();//获取订单金额
//金额转化为分为单位
float sessionmoney = Float.parseFloat(money);
String finalmoney = String.format("%.2f", sessionmoney);
finalmoney = finalmoney.replace(".", "");
String currTime = TenpayUtil.getCurrTime();
//8位日期
String strTime = currTime.substring(8, currTime.length());
//四位随机数
String strRandom = TenpayUtil.buildRandom(4) + "";
//10位序列号,可以自行调整。
String strReq = strTime + strRandom;
//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="";
//随机数
String nonce_str = strReq;
String body = order.getName();
//附加数据
String attach = userId;
//商户订单号
String out_trade_no = order.getSn()+"|"+System.currentTimeMillis();//订单编号加时间戳
int intMoney = Integer.parseInt(finalmoney);
//总金额以分为单位，不带小数点
String total_fee = String.valueOf(intMoney);
//订单生成的机器 IP
String spbill_create_ip = request.getRemoteAddr();
String notify_url =WeixinPayConstants.notify_url;//微信异步通知地址
String trade_type = "APP";//app支付必须填写为APP
//对以下字段进行签名
SortedMap<String, String> packageParams = new TreeMap<String, String>();
packageParams.put("appid", appid);
packageParams.put("attach", attach);
packageParams.put("body", body);
packageParams.put("mch_id", mch_id);
packageParams.put("nonce_str", nonce_str);
packageParams.put("notify_url", notify_url);
packageParams.put("out_trade_no", out_trade_no);
packageParams.put("spbill_create_ip", spbill_create_ip);
packageParams.put("total_fee", total_fee);
packageParams.put("trade_type", trade_type);
RequestHandler reqHandler = new RequestHandler(request, response);
reqHandler.init(appid, appsecret, partnerkey);
String sign = reqHandler.createSign(packageParams);//获取签名
String xml="<xml>"+
"<appid>"+appid+"</appid>"+
"<attach>"+attach+"</attach>"+
"<body><![CDATA["+body+"]]></body>"+
"<mch_id>"+mch_id+"</mch_id>"+
"<nonce_str>"+nonce_str+"</nonce_str>"+
"<notify_url>"+notify_url+"</notify_url>"+
"<out_trade_no>"+out_trade_no+"</out_trade_no>"+
"<spbill_create_ip>"+spbill_create_ip+"</spbill_create_ip>"+
"<total_fee>"+total_fee+"</total_fee>"+
"<trade_type>"+trade_type+"</trade_type>"+
"<sign>"+sign+"</sign>"+
"</xml>";
String allParameters = "";
try {
allParameters = reqHandler.genPackage(packageParams);
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
String createOrderURL = WeixinPayConstants.createOrderURL;
String prepay_id="";
try {
prepay_id = new GetWxOrderno().getPayNo(createOrderURL, xml);
if(prepay_id.equals("")){
retMsgJson.put("msg", "error");
json=retMsgJson.toString();
out.write(json);
out.close();
return;
}
} catch (Exception e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
//获取到prepayid后对以下字段进行签名最终发送给app
SortedMap<String, String> finalpackage = new TreeMap<String, String>();
String timestamp = Sha1Util.getTimeStamp();
finalpackage.put("appid", appid);
finalpackage.put("timestamp", timestamp);
finalpackage.put("noncestr", nonce_str);
finalpackage.put("partnerid", WeixinPayConstants.partner);
finalpackage.put("package", "Sign=WXPay");
finalpackage.put("prepayid", prepay_id);
String finalsign = reqHandler.createSign(finalpackage);
retMsgJson.put("msg", "ok");
retMsgJson.put("appid", appid);
retMsgJson.put("timestamp", timestamp);
retMsgJson.put("noncestr", nonce_str);
retMsgJson.put("partnerid", WeixinPayConstants.partner);
retMsgJson.put("prepayid", prepay_id);
retMsgJson.put("package", "Sign=WXPay");
retMsgJson.put("sign", finalsign);
json=retMsgJson.toString();
out.write(json);
out.close();
}
//微信异步通知
@RequestMapping(value = "/notify")
@ResponseBody public void notify(HttpServletRequest request,HttpServletResponse response) throws Exception{
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 msgxml=new String(out.toByteArray(),"utf-8");//xml数据
System.out.println(msgxml);
Map map = new GetWxOrderno().doXMLParse(msgxml);
String result_code=(String) map.get("result_code");
String out_trade_no = (String) map.get("out_trade_no");
String total_fee = (String) map.get("total_fee");
String sign = (String) map.get("sign");
Double amount=new Double(total_fee)/100;//获取订单金额
String attach= (String) map.get("attach");
String sn=out_trade_no.split("\\|")[0];//获取订单编号
Long memberid=Long.valueOf(attach);
Member member=memberService.find(memberid);
Order order=orderService.findBySn(sn);
if(result_code.equals("SUCCESS")&&member!=null&&order!=null){
//验证签名
float sessionmoney = Float.parseFloat(order.getAmount().toString());
String finalmoney = String.format("%.2f", sessionmoney);
finalmoney = finalmoney.replace(".", "");
int intMoney = Integer.parseInt(finalmoney);
//总金额以分为单位，不带小数点
String order_total_fee = String.valueOf(intMoney);
String fee_type = (String) map.get("fee_type");
String bank_type = (String) map.get("bank_type");
String cash_fee = (String) map.get("cash_fee");
String is_subscribe = (String) map.get("is_subscribe");
String nonce_str = (String) map.get("nonce_str");
String openid = (String) map.get("openid");
String return_code = (String) map.get("return_code");
String sub_mch_id = (String) map.get("sub_mch_id");
String time_end = (String) map.get("time_end");
String trade_type = (String) map.get("trade_type");
String transaction_id = (String) map.get("transaction_id");
//需要对以下字段进行签名
SortedMap<String, String> packageParams = new TreeMap<String, String>();
packageParams.put("appid", appid);
packageParams.put("attach", order.getMember().getId().toString()); //用自己系统的数据：会员id
packageParams.put("bank_type", bank_type);
packageParams.put("cash_fee", cash_fee);
packageParams.put("fee_type", fee_type);
packageParams.put("is_subscribe", is_subscribe);
packageParams.put("mch_id", partner);
packageParams.put("nonce_str", nonce_str);
packageParams.put("openid", openid);
packageParams.put("out_trade_no", out_trade_no);
packageParams.put("result_code", result_code);
packageParams.put("return_code", return_code);
packageParams.put("sub_mch_id", sub_mch_id);
packageParams.put("time_end", time_end);
packageParams.put("total_fee", order_total_fee); //用自己系统的数据：订单金额
packageParams.put("trade_type", trade_type);
packageParams.put("transaction_id", transaction_id);
RequestHandler reqHandler = new RequestHandler(request, response);
reqHandler.init(appid, appsecret, partnerkey);
String endsign = reqHandler.createSign(packageParams);
if(sign.equals(endsign)){//验证签名是否正确 官方签名工具地址：https://pay.weixin.qq.com/wiki/tools/signverify/
if("订单没有支付"){
try{
//处理自己的业务逻辑
response.getWriter().write(setXml("SUCCESS", "OK")); //告诉微信已经收到通知了
}catch(Exception e){
System.out.println("微信支付异步通知异常");
}
}else if("订单支付了"){
response.getWriter().write(setXml("SUCCESS", "OK")); //告诉微信已经收到通知了
}
}
}
}
public static String setXml(String return_code,String return_msg){
return "<xml><return_code><![CDATA["+return_code+"]]></return_code><return_msg><![CDATA["+return_msg+"]]></return_msg></xml>";
}
}
附上本文微信app支付开发所用到的工具类下载地址
http://download.csdn.net/detail/xu_xiao_ji/9516695
转载自:http://blog.csdn.net/xu_xiao_ji/article/details/51374174