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@Order 注解

@Order注解主要用来控制配置类的加载顺序

package com.runlion.tms.admin.constant;public class AService {}package com.runlion.tms.admin.constant;public class BService {}

package com.runlion.tms.admin.constant;import org.springframework.context.annotation.Bean;import org.springframework.context.annotation.Configuration;import org.springframework.core.annotation.Order;@Configuration@Order(2)public class AConfig {  @Bean  public AService AService() {    System.out.println("AService 加载了");    return new AService();  }}package com.runlion.tms.admin.constant;import org.springframework.context.annotation.Bean;import org.springframework.context.annotation.Configuration;import org.springframework.core.annotation.Order;@Configuration@Order(1)public class BConfig {  @Bean  public BService bService() {    System.out.println("BService 加载了");    return new BService();  }}

测试类:

package com.runlion.tms.admin.constant;import org.springframework.context.annotation.AnnotationConfigApplicationContext;public class OrderMain {  public static void main(String[] args) {    AnnotationConfigApplicationContext context =        new AnnotationConfigApplicationContext("com.runlion.tms.admin.constant");  }}

输出结果:

因为BService 的@Order(1),所以先打印出来

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