SpringBoot复习：（40）@EnableConofigurationProperties注解的用法

amadeus_liu22023-08-17 12:38

一、配置文件：

server.port=9123

二、配置类：

package cn.edu.tju.config;

import com.mysql.fabric.Server;
import org.springframework.boot.autoconfigure.web.ServerProperties;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

@Configuration
@EnableConfigurationProperties(ServerProperties.class)
public class MyConfig {

    @Bean("portBean")
    public String getPort(ServerProperties serverProperties){
        return "hello " + serverProperties.getPort();
    }
}

三、测试

package cn.edu.tju;

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

@SpringBootApplication
public class Start {
    public static void main(String[] args) {
        ConfigurableApplicationContext context = SpringApplication.run(Start.class, args);
        String result = context.getBean("portBean", String.class);
        System.out.println(result);

    }
}