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混合使用@RequestBody()和@RequestParam()

RequestParam参数放在前端ajax的url后用?连接，

var user = eval("("+sessionStorage.getItem("user")+")");        $.ajax({               url: "${pageContext.request.contextPath}/user/getMail?mailNum="+sessionStorage.getItem("mailNum"),            method: "post",            data: JSON.stringify(user),            datatype: "json",            contentType: "application/json",            xhrFields: {   withCredentials: true},//提供cookie信息            // success: function (res) {               //            // }        });//-----------------------------------后端代码    @RequestMapping("/getMail")    @ResponseBody    public HashMap
   
     getMail(@RequestBody() User user,@RequestParam("mailNum") Integer mailNum){           HashMap
    
      map = new HashMap
     
      ();        System.out.println(mailNum);        return map;    }
     
    
   

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