Spring Boot 2--项目属性配置案例

1、Spring Boot  项目属性的配置

2种属性配置：
1）新建Application.properties(在src/main/resources包下)

server.port=8081
server.context-path=/girl

2）或者新建一个application.yml(在src/main/resources包下)

server:
port: 8081
context-path :/girl

2、简单案例
application.yml

server:
port: 8081
cupSize: B
age: 18

GirlController.java

package com.example;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
@RestController
public class GirlController {
@Value("${server.cupSize}")
private String cupSize;
@Value("${server.age}")
private String age;
@RequestMapping(value="/hello")
public String say() {
return cupSize+age;
}
}

GirlApplication.java

package com.example;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication//开启自动配置
public class GirlApplication {
//main方法作用：作为项目启动的入口
public static void main(String[] args) {
SpringApplication.run(GirlApplication.class, args);
}
}

运行结果：
B18