Spring MVC——生成JSON

Spring MVC 生成JSON 文件需要从maven存储库页面下载Jackson库Jackson Core，Jackson Databind和Jackson Annotations。把它们放在你的CLASSPATH中。

Maven依赖

maven依赖来源https://blog.csdn.net/u011499747/article/details/78762007

<!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-core -->
<dependency>
    <groupId>com.fasterxml.jackson.core</groupId>
    <artifactId>jackson-core</artifactId>
    <version>2.9.2</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-annotations -->
<dependency>
    <groupId>com.fasterxml.jackson.core</groupId>
    <artifactId>jackson-annotations</artifactId>
    <version>2.9.2</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-databind -->
<dependency>
    <groupId>com.fasterxml.jackson.core</groupId>
    <artifactId>jackson-databind</artifactId>
    <version>2.9.2</version>
</dependency>

 

首先创建一个实体类

package com.tutorialspoint;

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;
   }	
}

控制器类

package com.tutorialspoint;

import org.springframework.stereotype.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.ResponseBody;

@Controller
@RequestMapping("/user")
public class UserController {
	
   @RequestMapping(value="{name}", method = RequestMethod.GET)
   public @ResponseBody User getUser(@PathVariable String name) {

      User user = new User();

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

 XML文件

<beans xmlns = http://www.springframework.org/schema/beans"
   xmlns:context = http://www.springframework.org/schema/context"   
   xmlns:xsi = http://www.w3.org/2001/XMLSchema-instance"
   xmlns:mvc = http://www.springframework.org/schema/mvc"
   xsi:schemaLocation = 
   http://www.springframework.org/schema/beans     
   http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
   http://www.springframework.org/schema/context 
   http://www.springframework.org/schema/context/spring-context-3.0.xsd
   http://www.springframework.org/schema/mvc
   http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd">
   <context:component-scan base-package = com.tutorialspoint" />
   <mvc:annotation-driven />
</beans>

结果