logback日志

前言

排查项目问题最好的方法是分析日志，当熟悉业务就另当别论，咱们也搞一份，大家可以拿来即用，真香

上模板

<configuration debug="false" scan="true" scanPeriod="10 seconds">
    <contextName>logback</contextName>
    <!--输出sql语句-->
    <property name="path" value="/home/appdeploy"></property>
    <property name="maxHistory" value="30"/>
    <property name="maxFileSize" value="50MB"/>

    <!--<appender name="console" class="ch.qos.logback.core.ConsoleAppender">
        <encoder class="ch.qos.logback.classic.encoder.PatternLayoutEncoder">
            &lt;!&ndash;格式化输出：%d表示日期，%thread表示线程名，%-5level：级别从左显示5个字符宽度%msg：日志消息，%n是换行符&ndash;&gt;
            <pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{50} - %msg%n</pattern>
        </encoder>
    </appender>-->

   <appender name="console" class="ch.qos.logback.core.ConsoleAppender">
        <filter class="ch.qos.logback.classic.filter.ThresholdFilter">
            <level>debug</level>
        </filter>
        <encoder>
            <pattern>%yellow(%d{yyyy-MM-dd HH:mm:ss}) %green([%thread]) %highlight(%-2level) %yellow(%logger) - %cyan(%msg%n)
            </pattern>
        </encoder>
    </appender>

    <appender name="info_file" class="ch.qos.logback.core.rolling.RollingFileAppender">
        <file>${path}/wind_info.log</file>
        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
            <fileNamePattern>${path}/wind_info.log.%d{yyyy-MM-dd}-%i.zip</fileNamePattern>
            <maxHistory>${maxHistory}</maxHistory>
            <timeBasedFileNamingAndTriggeringPolicy
                    class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
                <maxFileSize>${maxFileSize}</maxFileSize>
            </timeBasedFileNamingAndTriggeringPolicy>
        </rollingPolicy>
        <encoder>
            <pattern>%date %level [%thread] %logger{36} [%file : %line] %msg%n
            </pattern>
        </encoder>
        <filter class="ch.qos.logback.classic.filter.LevelFilter">
            <level>INFO</level>
            <onMatch>ACCEPT</onMatch>
            <onMismatch>DENY</onMismatch>
        </filter>
    </appender>

    <appender name="error_file" class="ch.qos.logback.core.rolling.RollingFileAppender">
        <file>${path}/wind_error.log</file>
        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
            <fileNamePattern>${path}/wind_error.log.%d{yyyy-MM-dd}-%i.zip</fileNamePattern>
            <maxHistory>${maxHistory}</maxHistory>
            <timeBasedFileNamingAndTriggeringPolicy
                    class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
                <maxFileSize>${maxFileSize}</maxFileSize>
            </timeBasedFileNamingAndTriggeringPolicy>
        </rollingPolicy>
        <encoder>
            <pattern>%date %level [%thread] %logger{36} [%file : %line] %msg%n
            </pattern>
        </encoder>
        <filter class="ch.qos.logback.classic.filter.LevelFilter">
            <level>ERROR</level>
            <onMatch>ACCEPT</onMatch>
            <onMismatch>DENY</onMismatch>
        </filter>
    </appender>


    <!--myibatis log configure-->
    <logger name="com.apache.ibatis" level="DEBUG"/>
    <logger name="java.sql.Connection" level="DEBUG"/>
    <logger name="java.sql.Statement" level="DEBUG"/>
    <logger name="java.sql.PreparedStatement" level="DEBUG"/>

    <root>
       <!-- <level value="info"/> prod  use--> 
        <level value="debug"/> <!-- sit /dev use-->
        <appender-ref ref="console"/>
        <appender-ref ref="info_file"/>
        <appender-ref ref="error_file"/> 
    </root>
</configuration>

备注：

1.把 下 级别设置为debug，就可以打印调试sql
2. 如果没有出来，看看pom 文件是否有 该日志对应的jar包
3.

        <dependency>
            <groupId>ch.qos.logback</groupId>
            <artifactId>logback-core</artifactId>
        </dependency>
        <dependency>
            <groupId>ch.qos.logback</groupId>
            <artifactId>logback-classic</artifactId>
        </dependency>

4.调试完成记得回滚，不要提交，不然对生产压力挺大