Springboot implements logback log

Create logback.xml log in the resources directory

The specific configuration content is as follows:

<?xml version="1.0" encoding="UTF-8"?> 
<configuration> 
    <!-- The information output by %m, %p log level, %t thread name, %d date, %c class full name ,%i index [increment from the number 0],,, --> 
    <!-- appender is a child node of configuration, and is a component responsible for writing logs. --> 
    <!-- ConsoleAppender: output the log to the console --> 
    <appender name="CONSOLE" class="ch.qos.logback.core.ConsoleAppender"> 
        <encoder> 
            <pattern>%d %p% thread (%file:%line\)- %m%n</pattern> 
            <!-- The console should also use UTF-8, don’t use GBK, otherwise Chinese characters will be garbled--> 
            <charset>UTF-8</ pattern> charset> 
        </encoder> 
    </appender> 

    <!-- RollingFileAppender: Rolling file, first record the log to the specified file, when a certain condition is met, record the log to other files -->  
    <!
    <!
    <appender name="DEBUG_FILE" class="ch.qos.logback.core.rolling.RollingFileAppender"> 
        <File>logs/debug/debug.log</File> 
        <!-- rollingPolicy: When rolling occurs, decide RollingFileAppender The behavior involves file movement and renaming. --> 
        <!-- TimeBasedRollingPolicy: The most commonly used rolling strategy, it develops a rolling strategy based on time, and is responsible for both rolling and starting rolling --> 
        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy" > 
            <!-- The name of the active file will be changed every once in a while according to the value of fileNamePattern --> 
            <!-- File name: log/demo.2017-12-05.0.log --> 
            <fileNamePattern>logs/ debug/debug-%d.%i.log</fileNamePattern> 
            <!-- Each time a log file is generated, the storage period of the log file is 30 days -->
            <timeBasedFileNamingAndTriggeringPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP"> 
                <!-- maxFileSize: This is the size of the active file, the default value is 10MB, it can be changed to 1KB during testing to see the effect --> 
                <maxFileSize> 10MB</maxFileSize> 
            </timeBasedFileNamingAndTriggeringPolicy> 
        </rollingPolicy> 
        <encoder> 
            <!-- pattern node, used to set the log input format--> 
            <pattern> 
                %d %p (%file:%line\)-% m%n 
            </pattern> 
            <!-- Log encoding: Set the character set here---> 
            <charset>UTF-8</charset> 
        </encoder> 
    </appender> 

    <appender name="ERROR_FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
        <File>logs/error/error.log</File>  
        <!-- rollingPolicy: When rolling occurs, Determines the behavior of RollingFileAppender, involving file movement and renaming. -->
        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy"> 
            <!-- The name of the active file will be based on the value of fileNamePattern at regular intervals Change once --> 
            <!-- File name: log/demo.2017-12-05.0.log --> 
            <fileNamePattern>logs/error/error-%d.%i.log</fileNamePattern> 
            <!-- Each time a log file is generated, the storage period of the log file is 30 days --> 
            <maxHistory>30</maxHistory> 
            <timeBasedFileNamingAndTriggeringPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP"> 
                <!-- maxFileSize: This is the size of the active file. The default value is 10MB, and it can be changed to 1KB during testing to see the effect --> 
                <maxFileSize>10MB</maxFileSize>
            </timeBasedFileNamingAndTriggeringPolicy>
        </rollingPolicy>
        <encoder> 
            <!-- pattern node, used to set the input format of the log -->
            <pattern> 
                %d %p %thread (%file:%line\)- %m%n 
            </pattern> 
            <!-- The encoding of logging: Set the character set here---> 
            <charset>UTF-8 </charset> 
        </encoder> 
        <!-- This log file only records ERROR level--> 
        <filter class="ch.qos.logback.classic.filter.LevelFilter"> 
            <level>ERROR</level> 
            < onMatch>ACCEPT</onMatch> 
            <onMismatch>DENY</onMismatch> 
        </filter> 
    </appender> 

    <!-- Console output log level --> 
    <root level="info"> 
        <appender-ref ref=" CONSOLE" />
    </root>appender-ref ref="CONSOLE" />
        <appender-ref ref="DEBUG_FILE" />
        <appender-ref ref="ERROR_FILE" />

    <!-- Specify the logging level of a package in the project when there is log operation behavior --> 
    <!-- com.xinxin.edulive.mapper is the root package, that is, as long as it occurs under this root package The authority for all log operations is DEBUG --> 
    <!-- The level is [from high to low]: FATAL> ERROR> WARN> INFO> DEBUG> TRACE --> 
    <logger name="com.juejueguai.logback "level="DEBUG"> 
        <appender-ref ref="DEBUG_FILE" /> 
    </logger> 
</configuration>