Springboot-starter的自动配置原理-及案例实现2

第二步：创建配置属性类HelloProperties
```package com.laoyang.config;

import org.springframework.boot.context.properties.ConfigurationProperties;

/**

• @author:Kevin
• @create: 2022-09-17 09:27

• @Description: 创建数据源配置类,用于封装配置文件的配置属性
  */
  @ConfigurationProperties(prefix = "hello")
  public class HelloProties {

  private String name;
  private String adress;

  public String getName() {

   return name;
  

  }

  public void setName(String name) {

   this.name = name;
  

  }

  public String getAdress() {

   return adress;
  

  }

  public void setAdress(String adress) {

   this.adress = adress;
  

  }

  @Override
  public String toString() {

   return "HelloProties{" +
           "name='" + name + '\'' +
           ", adress='" + adress + '\'' +
           '}';
  

  }
  }
  第二步：创建配置属性类HelloPropertiespackage com.laoyang.config;

import org.springframework.boot.context.properties.ConfigurationProperties;

/**

• @author:Kevin
• @create: 2022-09-17 09:27

• @Description: 创建数据源配置类,用于封装配置文件的配置属性
  */
  @ConfigurationProperties(prefix = "hello")
  public class HelloProties {

  private String name;
  private String adress;

  public String getName() {

   return name;
  

  }

  public void setName(String name) {

   this.name = name;
  

  }

  public String getAdress() {

   return adress;
  

  }

  public void setAdress(String adress) {

   this.adress = adress;
  

  }

  @Override
  public String toString() {

   return "HelloProties{" +
           "name='" + name + '\'' +
           ", adress='" + adress + '\'' +
           '}';
  

  }
  }
  第三步：创建服务类HelloServicepackage com.laoyang.service;

/**

• @author:Kevin
• @create: 2022-09-17 09:34
• @Description: 服务类
  */

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

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

public String sayHello(){
    return "你好！我的名字叫 " + name + "，我来自 " + address;
}

}
```