angularJs、Spring MVC：如何将数据发送到 Spring 控制器

Question

我正在尝试将图像从我的网络应用程序发送到我的 Spring RestController；但我无法投射我收到的对象。

ANGULARJS - 控制器：

myModule.controller('InscriptionCtrl',function($location, $http){

    var self = this;

    self.credentials = {};

    self.register = function(credentials){

        var FormRegisterDto = credentials ? {
            login : credentials.login, 
            password : credentials.password,
            title : credentials.title,
            name : credentials.name,
            firstname : credentials.firstname,
            age : credentials.age,
            email : credentials.email,
            streetNum : credentials.streetNum,
            streetBister : credentials.streetBister,
            streetName : credentials.streetName,
            city : credentials.city,
            postalCode : credentials.postalCode,
            country : credentials.country
        } : {};

        var fd = new FormData();

        fd.append('data', angular.toJson(FormRegisterDto));
        fd.append("file", this.myImage);

        $http.post(
                '/register-user', 
                fd,
                {
                    transformRequest: angular.identity,
                    headers: {'Content-Type': undefined}
                }
        ).then(
            function(response){
                // success
            },
            function(){
                // error
            }
        );
    };
});

我的 Spring RestController 正确接收数据和文件，因为如果我打印 "data"，它正在写入：{"login":"aaaaaaaaaa","password":"aaaaaaaaaaaA","title":"M","email":"aaaaaaaaaa@aaaaaaaaaa"}

我的问题是我想将对象 "data" 转换为我的 class "FormRegisterDto"，其中包含 "String login"、"String password" 等属性...

我的JAVA代码：

@RequestMapping(value = "/register-user-blob", produces = "application/json")
public FormRegisterResponseDto registerUserWithBlob(
        @RequestParam(value="file", required=false) MultipartFile file,
        @RequestParam(value="data") Object data){


    FormRegisterRequestDto request = (FormRegisterRequestDto) data; // it doesn't works

    System.out.println(data); // it show {"login":"aaaaaaaaaa","password":"aaaaaaaaaaaA","title":"M","email":"aaaaaaaaaa@aaaaaaaaaa"}

    return new FormRegisterResponseDto();
}

你知道怎么做吗？谢谢 ;).

Answer 1

你的 Object data 是 String 类型，所以你不能将它转换为 FormRegisterRequestDto，你应该做的是在前端序列化对象，将其转换为 json 字符串（此时似乎是），而不是像这样使用 Gson google 的库

Gson gson = new Gson();
FormRegisterRequestDto dto=gson.fromJson(data, FormRegisterRequestDto.class);

angularJs、Spring MVC：如何将数据发送到 Spring 控制器

angularJs, Spring MVC : how to send data to Spring controller

angularjs

spring

spring-mvc

casting

spring-restcontroller