java实现微信支付（服务端）

RequestHandler requestHandler = new RequestHandler(super.getRequest(),super.getResponse()); //获取token //两小时内有效，两小时后重新获取 Token = requestHandler.GetToken(); //更新token 到应用中 requestHandler.getTokenReal(); System.out.println("微信支付获取token=======================:" +Token); //requestHandler 初始化 requestHandler.init(); requestHandler.init(appid,appsecret, appkey,partnerkey, key);

// 设置package订单参数    SortedMap<String, String> packageParams = new TreeMap<String, String>();    packageParams.put("bank_type", "WX"); // 支付类型    packageParams.put("body", "xxxx"); // 商品描述    packageParams.put("fee_type", "1"); // 银行币种    packageParams.put("input_charset", "UTF-8"); // 字符集    packageParams.put("notify_url", "http://xxxx.com/xxxx/wxcallback"); // 通知地址 这里的通知地址使用外网地址测试，注意80端口是否打开。   packageParams.put("out_trade_no", no); // 商户订单号    packageParams.put("partner", partenerid); // 设置商户号    packageParams.put("spbill_create_ip", super.getRequest().getRemoteHost()); // 订单生成的机器IP，指用户浏览器端IP    packageParams.put("total_fee", String.valueOf(rstotal)); // 商品总金额,以分为单位    // 设置支付参数    SortedMap<String, String> signParams = new TreeMap<String, String>();    signParams.put("appid", appid);    signParams.put("noncestr", noncestr);    signParams.put("traceid", PropertiesUtils.getOrderNO());    signParams.put("timestamp", timestamp);    signParams.put("package", packageValue);    signParams.put("appkey", this.appkey);     // 生成支付签名，要采用URLENCODER的原始值进行SHA1算法！    String sign ="";     try {     sign = Sha1Util.createSHA1Sign(signParams);     } catch (Exception e) {     e.printStackTrace();     }      // 增加非参与签名的额外参数    signParams.put("sign_method", "sha1");    signParams.put("app_signature", sign);      // api支付拼包结束------------------------------------    //获取prepayid   String prepayid = requestHandler.sendPrepay(signParams);   System.out.println("prepayid :" + prepayid);

 //生成预付快订单完成，返回给android,ios 掉起微信所需要的参数。   SortedMap<String, String> payParams = new TreeMap<String, String>();    payParams.put("appid", appid);   payParams.put("noncestr", noncestr);   payParams.put("package", "Sign=WXPay");   payParams.put("partnerid", partenerid);   payParams.put("prepayid", prepayid);   payParams.put("appkey", this.appkey);   //这里除1000 是因为参数长度限制。   int time = (int) (System.currentTimeMillis() / 1000);   payParams.put("timestamp",String.valueOf(time));      System.out.println("timestamp:" + time);      //签名   String paysign ="";   try {         paysign = Sha1Util.createSHA1Sign(payParams);   } catch (Exception e) {     e.printStackTrace();   }   payParams.put("sign", paysign);     //拼json 数据返回给客户端   BasicDBObject backObject = new BasicDBObject();   backObject.put("appid", appid);   backObject.put("noncestr", payParams.get("noncestr"));   backObject.put("package", "Sign=WXPay");   backObject.put("partnerid", payParams.get("partnerid"));   backObject.put("prepayid", payParams.get("prepayid"));   backObject.put("appkey", this.appkey);   backObject.put("timestamp",payParams.get("timestamp"));   backObject.put("sign",payParams.get("sign"));      String backstr = dataObject.toString();   System.out.println("backstr:" + backstr);   return backstr;

 ResponseHandler resHandler = new ResponseHandler(request, response);   resHandler.setKey(partnerkey);   //创建请求对象   //RequestHandler queryReq = new RequestHandler(request, response);   //queryReq.init();   if (resHandler.isTenpaySign() == true) {       //商户订单号       String out_trade_no = resHandler.getParameter("out_trade_no");       System.out.println("out_trade_no:" + out_trade_no);       //财付通订单号       String transaction_id = resHandler.getParameter("transaction_id");       System.out.println("transaction_id:" + transaction_id);       //金额,以分为单位       String total_fee = resHandler.getParameter("total_fee");       //如果有使用折扣券，discount有值，total_fee+discount=原请求的total_fee       String discount = resHandler.getParameter("discount");       //支付结果       String trade_state = resHandler.getParameter("trade_state");          //判断签名及结果       if ("0".equals(trade_state)) {         //------------------------------         //即时到账处理业务开始         //------------------------------                 System.out.println("----------------业务逻辑执行-----------------");                //――请根据您的业务逻辑来编写程序（以上代码仅作参考）――         System.out.println("----------------业务逻辑执行完毕-----------------");         System.out.println("success"); // 请不要修改或删除                 System.out.println("即时到账支付成功");         //给财付通系统发送成功信息，财付通系统收到此结果后不再进行后续通知         resHandler.sendToCFT("success");            //给微信服务器返回success 否则30分钟通知8次        return "success";      }else{             System.out.println("通知签名验证失败");       resHandler.sendToCFT("fail");       response.setCharacterEncoding("utf-8");     }    }else {       System.out.println("fail -Md5 failed");    }