SpringBoot入门-3（返回json数据）

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一、项目结构



二、POM.XML文件

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd"> <modelVersion>4.0.0</modelVersion>
<groupId>com.fs</groupId>
<artifactId>springboot_json_2</artifactId>
<packaging>war</packaging>
<version>0.0.1-SNAPSHOT</version>
<name>springboot_json_2 Maven Webapp</name>
<url>http://maven.apache.org</url>
<!-- spring boot 父节点依赖,引入这个之后相关的引入就不需要添加version配置，spring boot会自动选择最合适的版本进行添加。 -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.4.1.RELEASE</version>
</parent>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<!-- 指定一下jdk的版本 ，这里我们使用jdk 1.8 ,默认是1.6 -->
<java.version>1.7</java.version>
</properties>
<dependencies>
<!-- spring-boot-starter-web: MVC,AOP的依赖包.... -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<!-- <version></version> 由于我们在上面指定了 parent(spring boot) -->
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
</dependencies>
<buil
4000
d>
<finalName>springboot_json_2</finalName>
</build>
</project>

三、HelloController.java

package com.fs;

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

@RestController
public class HelloController {

@RequestMapping("/getDemo")
public Demo getDemo() {
Demo demo = new Demo();
demo.setId(1);
demo.setName("张三");
return demo;
}
}

四、Demo.java

package com.fs;

public class Demo {

private int id;
private String name;

public int getId() {
return id;
}

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

public String getName() {
return name;
}

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

}

五、APP.java

package com.fs;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
public class App {

public static void main(String[] args) {
SpringApplication.run(App.class, args);
}

}