转自：https://blog.csdn.net/qq_15037231/article/details/78158553

4.1 @Order

• Spring 4.2 利用@Order控制配置类的加载顺序

4.2 演示

• 两个演示bean

package com.wisely.spring4_2.order;public class Demo1Service {}

package com.wisely.spring4_2.order;public class Demo2Service {}

• 两个配置类,注意@Order配置加载的顺序

package com.wisely.spring4_2.order;import org.springframework.context.annotation.Bean;import org.springframework.context.annotation.Configuration; import org.springframework.core.annotation.Order; @Configuration @Order(2) public class Demo1Config { @Bean public Demo1Service demo1Service(){ System.out.println("demo1config 加载了"); return new Demo1Service(); } }

package com.wisely.spring4_2.order;import org.springframework.context.annotation.Bean;import org.springframework.context.annotation.Configuration; import org.springframework.core.annotation.Order; @Configuration @Order(1) public class Demo2Config { @Bean public Demo2Service demo2Service(){ System.out.println("demo2config 加载了"); return new Demo2Service(); } }

• 运行

package com.wisely.spring4_2.order;import org.springframework.context.annotation.AnnotationConfigApplicationContext;public class Main { public static void main(String[] args) { AnnotationConfigApplicationContext context = new AnnotationConfigApplicationContext("com.wisely.spring4_2.order"); } }

输出结果

demo2config 加载了demo1config 加载了

读者可自己调整顺序在运行