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 {@Beanpublic 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 {@Beanpublic 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
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和equalsIgnoreCase()的区别)
