一、注解方式
编写实体类：
package com.example.bean;
import org.springframework.boot.context.properties.ConfigurationProperties;
/**
* Created by Loser100 on 2017/10/9.
*/
@Component
@ConfigurationProperties(prefix = "hello")
public class HelloServiceProperties {
private static final String MSG = "hello";
private String msg = MSG;
public String getMsg() {
return msg;
}
public void setMsg(String msg) {
this.msg = msg;
}
}其中Component注解为自动装载，注解ConfigurationProperties的prefix = “hello”可以在application.yml或application.properties中进行赋值，如：hello.msg = Loser100。若不赋值则默认为”hello”!
二、配置文件方式
编写实体:
package com.example.services;
/**
* Created by Loser100 on 2017/10/9.
*/
public class HelloService {
private String msg;
public String sayHello(){
return "HELLO" + msg;
}
public String getMsg() {
return msg;
}
public void setMsg(String msg) {
this.msg = msg;
}
}
rce.META-INF下新建spring.factories文件，内容为：
org.springframework.boot.autoconfigure.EnableAutoConfiguration=main.java.com.example.services.HelloService三、使用
使用时直接使用@Autowired标签即可，如：
@Autowired
private HelloService helloServiceProperties;
String sayHello(){
return helloServiceProperties.sayHello();
}附上学习工程截图：
