applicaionlistener事件加载作用

SofaTracerConfigurationListener implements ApplicationListener<ApplicationEnvironmentPreparedEvent>, Ordered
加载日志

BeanDefinitionRegistryPostProcessor pp = beanFactory.getBean(ppName, BeanDefinitionRegistryPostProcessor.class);
加载动态注册的bean

org.springframework.beans.factory.support.DefaultListableBeanFactory#resolveDependency
依赖注入

<include resource="org/springframework/boot/logging/logback/console-appender.xml" />

<included>
   <appender name="CONSOLE" class="ch.qos.logback.core.ConsoleAppender">
      <encoder>
         <pattern>${CONSOLE_LOG_PATTERN}</pattern>
         <charset>utf8</charset>
      </encoder>
   </appender>
</included>

<root level="INFO">
    <appender-ref ref="CONSOLE" />
</root>

for (final ApplicationListener<?> listener : getApplicationListeners(event, type)) {
回调事件

控制台输出：system.out.p

update nim_session_msg set updatetime=updatetime+1 where statustime>1623640396000 order by statustime desc
> 1197 - Multi-statement transaction required more than 'max_binlog_cache_size' bytes of storage; increase this mysqld variable and try again
> 时间: 8294.036s

 

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