轉自：https://blog.csdn.net/qq_15037231/article/details/78158553
4.1 @Order
- Spring 4.2 利用
@Order控制配置類的加載順序
4.2 演示
- 兩個演示bean
package com.wisely.spring4_2.order;
public class Demo1Service {
}
package com.wisely.spring4_2.order;
public class Demo2Service {
}
- 兩個配置類,注意@Order配置加載的順序
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 加載了"); 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 加載了"); return new Demo2Service(); } }
- 運行
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"); } }
輸出結果
demo2config 加載了
demo1config 加載了
讀者可自己調整順序在運行