Spring MVC使用@RestController生成JSON示例

继上一章的生成JSON示例http://www.cnblogs.com/EasonJim/p/7500405.html，现在还有另一种选择，就是使用@RestController，下面将参照上一节例子进行改造，展示核心代码。

UserController.java

package com.jsoft.testspringmvc.controller;

import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;

import com.jsoft.testspringmvc.model.User;

@RestController
@RequestMapping("/user")
public class UserController {

    @RequestMapping(value = "{name}", method = RequestMethod.GET)
    public User getUser(@PathVariable String name) {

        User user = new User();

        user.setName(name);
        user.setId(1);
        return user;
    }
}

结果：

如果想要返回XML数据，直接在实体里面标记@XmlRootElement即可，比如下面所示的POJO类

package com.jsoft.testspringmvc.model;

import javax.xml.bind.annotation.XmlRootElement;

@XmlRootElement(name = "user")
public class User {
    private String name;
    private int id;

    public String getName() {
        return name;
    }

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

    public int getId() {
        return id;
    }

    public void setId(int id) {
        this.id = id;
    }
}

Maven示例：

https://github.com/easonjim/5_java_example/tree/master/springmvc/tutorialspoint/test33 

参考：

http://www.yiibai.com/spring_mvc/spring-4-mvc-rest-service-example-using-restcontroller.html