Demo #03

                             
@RequestMapping(value = "/frontnotice", method = RequestMethod.GET)
public String frontNotice(@RequestParam(value="rsa",required=true) String rsa,
 HttpServletRequest request, HttpServletResponse response) throws Exception {
 logger.info("客户端开始接受前台回调通知..");
 //以下三行response.set..是为了解决跨域访问拒绝的问题一定要写
    response.setHeader("Access-Control-Allow-Origin", "*");
  // 响应类型
response.setHeader("Access-Control-Allow-Methods", "GET,POST,PUT,DELETE,OPTIONS");
  // 响应头设置
 response.setHeader("Access-Control-Allow-Headers", "Origin, No-Cache,
    X-Requested-With,If-Modified-Since, Pragma, Last-Modified,
     Cache-Control, Expires, Content-Type, X-E4M-With");
String privateKey="";//私钥赋值
String reqParamter=Message.decryptByPrivateKey(rsa,privateKey);
//reqParamter是解密后的字符串
    String  reqParamter= new String(returnMsg);
//以下是解析解密后的字符串显示到页面上，各个字段参考接口文档，以接口文档为准
    JSONObject param=   (JSONObject) JSONObject.parse(reqParamter);
    String merchant_order_no=  (String) param.get("merchant_order_no");
    String merchant_no=(String)param.get("merchant_no");
    Integer amount=(Integer) param.get("amount");
    String result=(String)param.get("result");
    String result_des=(String)param.get("result_des");
    String extra=(String)param.get("extra");
    request.setAttribute("merchant_order_no", merchant_order_no);
    request.setAttribute("merchant_no", merchant_no);
    request.setAttribute("amount", amount);
    request.setAttribute("result", result);
    request.setAttribute("result_des", result_des);
    request.setAttribute("extra", extra);
    logger.info("客户端接受前台回调结束...");
    //商户端的成功响应页面
    return "success";
}