spring boot 利用分层结构输出简单的Hello world

项目结构

model代码

package com.yubai.springbootjson.model;

public class Hello {
private String username;
private int age;

public Hello(String username, int age) {
this.username = username;
this.age = age;
}

public String getUsername() {
return username;
}

public void setUsername(String username) {
this.username = username;
}

public int getAge() {
return age;
}

public void setAge(int age) {
this.age = age;
}
}

responsitory代码

package com.yubai.springbootjson.responsitory;

import com.yubai.springbootjson.model.Hello;
import org.springframework.stereotype.Repository;

@Repository
public class HelloResponsitory {

public String sayHello() {
Hello hello = new Hello("jolie", 27);
return "hello" + hello.getUsername();
}
}

service代码：

package com.yubai.springbootjson.service;

import com.yubai.springbootjson.responsitory.HelloResponsitory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class HelloService {

@Autowired
private HelloResponsitory helloResponsitory;

@RequestMapping("/hello")
public String SayHello(){
String str =  helloResponsitory.sayHello();
return str;
}
}

Aplication代码：

package com.yubai.springbootjson;

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

@SpringBootApplication
public class SpringBootJsonApplication {

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