【ApplicationListener＜ContextRefreshedEvent＞使用】示例
import com.google.common.collect.Maps;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationListener;
import org.springframework.context.event.ContextRefreshedEvent;
import org.springframework.stereotype.Component;
import java.util.Map;
/**
* Description:
*
* @author Lenovo
* @date 2020/8/12
**/
@Component
public class MyApplicationListener implements ApplicationListener {
private static Map,UserService> userServiceMap = Maps.newHashMap();
@Override
public void onApplicationEvent(ContextRefreshedEvent event) {
ApplicationContext applicationContext = event.getApplicationContext();
Map, UserService> beansOfType = applicationContext.getBeansOfType(UserService.class);
for (UserService userService : beansOfType.values()) {
System.out.println(userService);
userServiceMap.put(userService.getId(),userService);
}
System.out.println(userServiceMap);
}}
