动态刷新日志疑问

[xuexiaoao]

spring cloud动态刷新日志为什么还要加一个PostConstruct，只是监听logging.level.配置不就可以了吗

public class LoggerLevelRefresher implements ApplicationContextAware {

  private ApplicationContext applicationContext;

  @ApolloConfig
  private Config config;

  @PostConstruct
  private void initialize() {
    refreshLoggingLevels(config.getPropertyNames());
  }

  @ApolloConfigChangeListener(interestedKeyPrefixes = {"logging.level."})
  private void onChange(ConfigChangeEvent changeEvent) {
    refreshLoggingLevels(changeEvent.changedKeys());
  }

  private void refreshLoggingLevels(Set<String> changedKeys) {
    System.out.println("Refreshing logging levels");

    /**
     * refresh logging levels
     * @see org.springframework.cloud.logging.LoggingRebinder#onApplicationEvent
     */
    this.applicationContext.publishEvent(new EnvironmentChangeEvent(changedKeys));

    System.out.println("Logging levels refreshed");
  }

  @Override
  public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
    this.applicationContext = applicationContext;
  }
}

[nobodyiam]

这个样例是logging先初始化，后加载apollo的例子，所以加载完apollo需要刷新一下。

如果使用apollo的eagerLoad，那么post contruct就不需要刷新了

[xuexiaoao]

这个样例是logging先初始化，后加载apollo的例子，所以加载完apollo需要刷新一下。

如果使用apollo的eagerLoad，那么post contruct就不需要刷新了

了解了