在SpringMVC的客户端视图技术中处理json响应

我试图在Spring MVC中实现以下场景。但我面临着一些问题，无法决定正确的方法。我正在使用jsonRequest/jsonResone(Restful Webservices)

1。我有一个注册。jsp表单，其中包含几个字段，需要提交给控制器。

 <form method="POST" onsubmit="javascript:signupObj.signup()">
<table>
<tr>
<td>Username : </td>
<td><input  id="username"/></td>
</tr>
<tr>
<td>Password :</td>
<td><input id="password"/></td>
</tr>
<tr>
<td>
<button type="submit">Submit</button>
</td>
</tr>
</table>

</form>

2。表单的onSubmit将调用下面提到的注册javascript函数

var signupObj  = {
showSignup : function() {
    //There are Two Ways to Declare Function The Other Way is function showSignup().Checkout the reasons
        $.ajax({
            type: "GET",
            url: "showSignup",
            success: function(response) {
                $("#signupView").html( response );
            }
        });
},
 signup : function() {   
     alert("In Signup function");
     var input = '{';
        input += '"username":"'+$('#username').val()+'",';
        input += '"password":"'+$('#password').val()+'"';
        input += '}';
        alert(input);
     $.ajax({
         type: "POST",
         url : "signup",
         contentType: "application/json; charset=utf-8",
         data: input,
         dataFilter: function (response) {
                return response;
            }, 
        // crossDomain: true,
         async:false,
             success: (function(data) {
                 alert("In ajax Sucess");
                 alert(data.profileID);
                 signupObj.redirectview("success",data);
             }),
                error : function(data,textStatus,error){
                    alert("In ajax Failure");
                     alert(error);
                     signupObj.redirectview("failure",data);
                },
             dataType: "json"
     });
     alert("ajax finished");
 },
 redirectview : function(message,data) {
     alert("inside redirect view");
     if(message == "success"){
         url = "success";
     }
     else{
            url = "error";
         }
      $.ajax({
          type: "POST",
          url : "success",
          contentType: "application/json; charset=utf-8",
          data: data,
          async:false,
          dataType: "json",
         dataFilter: function (response) {
            return response;
        }, 
         // crossDomain: true,
          success: (function(data) {
              alert("data");
          }),
            error : function(data,textStatus,error){
                alert("In ajax Failure redirect");
                 alert(error);
            },

});}

};

3。上面的javascript函数对控制器进行ajax调用(输入是jsonRequest)

    @RequestMapping(value="/signup",method=RequestMethod.POST)
      @ResponseBody
        public ProfileDTO signup(@RequestBody LoginDTO loginDTO) {
          ProfileDTO profileDto = new ProfileDTO();
//In case no errors in backend logic
          profileDto.setError(null);
          profileDto.setProfileID("profileID");
          profileDto.setProfileName("profileName");
          System.out.println("Submitting SignUP Form Will Return ProfileID");
            return profileDto;
        }
//Below method is for success view
    @RequestMapping(value="/success",method=RequestMethod.POST)
    @ResponseBody
    public String checkSignup(@RequestBody ProfileDTO profileDto,HttpServletRequest httprequest,HttpServletResponse httpResponse
            ) {
        //model.addAttribute(loginDTO);
    System.out.println("In loginSuccess");
        return "loginSucess";
    }

4。控制器给出profileDTO的JSON响应。现在，根据侧写to。我必须调用loginSuccess.jsp或loginFailure.jsp

现在我的问题是

1)如何在ajax调用中使用jsonResponse来重定向到loginSuccess.jsp或loginFailure.jsp，以及如何将我的profileDTO数据传递到loginSuccess视图。

2。)请建议我应该遵循的最佳实践