接下来讲解三种调整类加载顺序的方式：
@Configuration
@Order(1)
public class ConfigA {
@Bean
public ServiceA serviceA(){
System.out.println("ConfigA 执行");
return new ServiceA();
}
}
@Configuration
@Order(2)
public class ConfigB {
@Bean
public ServiceB serviceB(){
System.out.println("ConfigB 执行");
return new ServiceB();
}
}@Configuration
public class Config {
@Bean
@Order(1)
public CListener bListener(){
return new CListener();
}
@Bean
@Order(2)
public DListener dListener(){
return new DListener();
}
}public class AListener implements ApplicationListener<ContextRefreshedEvent>, Ordered {
private CuratorManagerComponent curatorManagerComponent;
@Override
public void onApplicationEvent(ContextRefreshedEvent contextRefreshedEvent) {
logger.info("AListener 执行了。");
}
@Override
public int getOrder() {
return HIGHEST_PRECEDENCE;
}
}
public class BListener implements ApplicationListener<ContextRefreshedEvent>, Ordered {
private CuratorManagerComponent curatorManagerComponent;
@Override
public void onApplicationEvent(ContextRefreshedEvent contextRefreshedEvent) {
logger.info("BListener 执行了。");
}
@Override
public int getOrder() {
return HIGHEST_PRECEDENCE + 2;
}
}
@Configuration
public class Config {
@Bean
public BListener bListener(){
return new BListener();
}
@Bean
public AListener aListener(){
return new AListener();
}
}对于实现ordered方式， 的需要在 getOrder 返回数值， 数值越小说明优先级越高。
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