logback写日志

 https://blog.csdn.net/u010128608/article/details/76618263

https://blog.csdn.net/zhuyucheng123/article/details/21524457

 <!-- 按时间回滚的同时，按文件大小来回滚 -->

<appender name="FILE" class= "ch.qos.logback.core.rolling.RollingFileAppender">  
            <!-- 支持多JVM同时操作同一个日志文件 -->  
            <prudent>true</prudent>  
            <!-- 按天来回滚，如果需要按小时来回滚，则设置为{yyyy-MM-dd_HH} -->  
            <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">  
                 <fileNamePattern>/opt/log/testC.%d{yyyy-MM-dd}.%i.log</fileNamePattern>  
                 <!-- 如果按天来回滚，则最大保存时间为1天，1天之前的都将被清理掉 -->  
                 <maxHistory>30</maxHistory>  
                 <!-- 按时间回滚的同时，按文件大小来回滚 -->  
                 <timeBasedFileNamingAndTriggeringPolicy  
                      class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">  
                      <maxFileSize>100MB</maxFileSize>  
                 </timeBasedFileNamingAndTriggeringPolicy>  
            </rollingPolicy>  
             
            <!-- 日志输出格式 -->  
            <layout class="ch.qos.logback.classic.PatternLayout">  
                 <Pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{36}  
                     -%msg%n</Pattern>  
            </layout>  
</appender>  

---

//　每天生成一个


 1 <appender name="FILE2" class="ch.qos.logback.core.rolling.RollingFileAppender">  
        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">  
            <!--      <fileNamePattern>/diskb/tongji/apache-tomcat-9.0.12/bin/cargoweblogs/statisticsVisit.%d{yyyy-MM-dd}.log</fileNamePattern>  -->
                  <fileNamePattern>cargoweblogs/statisticsVisit.%d{yyyy-MM-dd}.log</fileNamePattern>
            <maxHistory>1</maxHistory>
        </rollingPolicy>
        <filter class="ch.qos.logback.classic.filter.LevelFilter">
            <!-- LevelFilter: 级别过滤器，根据日志级别进行过滤 -->
            <level>INFO</level>
            <onMatch>ACCEPT</onMatch>
            <onMismatch>DENY</onMismatch>
        </filter>
        <encoder>  
                  <pattern>%-4relative [creatTime:%d{yyyy-MM-dd HH:mm:ss}] %-5level %logger{35} ^@^ %msg%n</pattern>  
        </encoder>
    </appender>