Backbone 模型保存 Spring 后端控制器不工作

Question

我在前端使用 Backbone 模型，在后端使用模型 url 作为 'Student' 和 Spring 控制器。

我可以使用以下代码进行提取

@RequestMapping(value = "/Student", produces = "application/json", method = RequestMethod.GET)
public @ResponseBody Student createStudent() {
    Student student = new Student("Abc","Def");
    return student;
}

但是下面的保存代码不起作用

@RequestMapping(value = "/Student", consumes = "application/json", produces =  "application/json",method = RequestMethod.POST)
public @ResponseBody Student saveStudent(@RequestBody Student student) {
    System.out.println(student.getName());
    return student;
}

我已经在客户端更改了 Student 的一些属性并保存了但是它给我 HTTP 400 错误描述 "The request sent by the client was syntactically incorrect."

Backbone 型号

var Student = Backbone.Model.extend({
    url : 'Student',
    defaults : {
        name : '',
        address : '',
    }
});

var student = new Student();
student.fetch();
alert(JSON.stringify(student,null,4));
student.set({name:'john'});
student.save();

学生Class

public class Student{
    private String name;
    private String address;

    public void Student(String name,String address){
       this.name=name;
       this.address=address;
    }

    public String getName(){
       return name;
    }

    public void setName(String name){
        this.name=name;
    }

    public String getAddress(){
       return address;
    }

    public void setAddress(String address){
        this.address=address;
    }
}

Answer 1

更新：问题是在 spring 控制器的 saveStudent() 方法中将 JSON 错误转换为学生对象，同时接受 @RequestBody 参数给出 400 错误。我通过在 Student class 中添加一个空的默认构造函数 Student() 并将 null 添加到 Backbone 保存方法来解决我的问题。

在学生中class

public Student(){
}

Backbone保存

student.save(null,{
    success:function()
    {
        ...
    }
);

Backbone 模型保存 Spring 后端控制器不工作

Backbone Model save with Spring Controller at the back end not working

javascript

controller

spring-mvc

backbone.js

backbone-model