logback日志框架的简单使用

2022-09-15 09:56:44

1.首先在maven中增加依赖

<dependency>

    <groupId>ch.qos.logback</groupId>

    <artifactId>logback-classic</artifactId>

    <version>${logback.version}</version>

</dependency>

<dependency>

    <groupId>org.slf4j</groupId>

    <artifactId>jcl-over-slf4j</artifactId>

    <version>${jcl-over.version}</version>

</dependency>

定义各自版本

  <logback.version>1.1.11</logback.version>

  <jcl-over.version>1.7.12</jcl-over.version>

因为采用的是maven聚合项目，所以这里 parent项目和common项目都需要加上，但是只需要给parent项目添加版本管理就行了

2.web.xml配置

<!--加载logback.xml配置文件-->

  <context-param>

    <param-name>logbackConfigLocation</param-name>

    <param-value>classpath:properties/logback.xml</param-value>

  </context-param>

  <listener>

    <listener-class>ch.qos.logback.ext.spring.web.LogbackConfigListener</listener-class>

  </listener>

3.编写logback.xml

在线工具，可以将log4j的properties文件直接转换成logback的xml文件，地址如下：

http://logback.qos.ch/translator/

logback的详细用法及其xml文件的相关语法，可参见它的用户向导，地址如下：

http://logback.qos.ch/manual/introduction.html

具体配置可以如下：（转自http://www.mkyong.com/logging/logback-xml-example/）更加具体的配置可以参考文档 https://logback.qos.ch/manual/configuration.html

<?xml version="1.0" encoding="UTF-8"?>

<configuration xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="http://www.padual.com/java/logback.xsd" debug="false"

               scan="true" scanPeriod="30 second">

    <property name="PROJECT" value="app-demo" />

    <property name="ROOT" value="${catalina.base}/logs/${PROJECT}/" />

    <property name="FILESIZE" value="50MB" />

    <property name="MAXHISTORY" value="100" />

    <timestamp key="DATETIME" datePattern="yyyy-MM-dd HH:mm:ss" />

    <!-- 控制台打印 -->

    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">

        <encoder>

            <pattern>[%-5level] %d{${DATETIME}} [%thread] %logger{36} - %m%n</pattern>

        </encoder>

    </appender>

    <!-- ERROR 输入到文件，按日期和文件大小 -->

    <appender name="ERROR-OUT" class="ch.qos.logback.core.rolling.RollingFileAppender">

        <encoder>

            <pattern>[%-5level] %d{${DATETIME}} [%thread] %logger{36} - %m%n</pattern>

        </encoder>

        <filter class="ch.qos.logback.classic.filter.LevelFilter">

            <level>ERROR</level>

            <onMatch>ACCEPT</onMatch>

            <onMismatch>DENY</onMismatch>

        </filter>

        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">

            <fileNamePattern>${ROOT}%d/error.%i.log</fileNamePattern>

            <maxHistory>${MAXHISTORY}</maxHistory>

            <timeBasedFileNamingAndTriggeringPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">

                <maxFileSize>${FILESIZE}</maxFileSize>

            </timeBasedFileNamingAndTriggeringPolicy>

        </rollingPolicy>

    </appender>

    <!-- WARN 输入到文件，按日期和文件大小 -->

    <appender name="WARN-OUT" class="ch.qos.logback.core.rolling.RollingFileAppender">

        <encoder>

            <pattern>[%-5level] %d{${DATETIME}} [%thread] %logger{36} - %m%n</pattern>

        </encoder>

        <filter class="ch.qos.logback.classic.filter.LevelFilter">

            <level>WARN</level>

            <onMatch>ACCEPT</onMatch>

            <onMismatch>DENY</onMismatch>

        </filter>

        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">

            <fileNamePattern>${ROOT}%d/warn.%i.log</fileNamePattern>

            <maxHistory>${MAXHISTORY}</maxHistory>

            <timeBasedFileNamingAndTriggeringPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">

                <maxFileSize>${FILESIZE}</maxFileSize>

            </timeBasedFileNamingAndTriggeringPolicy>

        </rollingPolicy>

    </appender>

    <!-- INFO 输入到文件，按日期和文件大小 -->

    <appender name="INFO-OUT" class="ch.qos.logback.core.rolling.RollingFileAppender">

        <encoder>

            <pattern>[%-5level] %d{${DATETIME}} [%thread] %logger{36} - %m%n</pattern>

        </encoder>

        <filter class="ch.qos.logback.classic.filter.LevelFilter">

            <level>INFO</level>

            <onMatch>ACCEPT</onMatch>

            <onMismatch>DENY</onMismatch>

        </filter>

        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">

            <fileNamePattern>${ROOT}%d/info.%i.log</fileNamePattern>

            <maxHistory>${MAXHISTORY}</maxHistory>

            <timeBasedFileNamingAndTriggeringPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">

                <maxFileSize>${FILESIZE}</maxFileSize>

            </timeBasedFileNamingAndTriggeringPolicy>

        </rollingPolicy>

    </appender>

    <!-- DEBUG 输入到文件，按日期和文件大小 -->

    <appender name="DEBUG-OUT" class="ch.qos.logback.core.rolling.RollingFileAppender">

        <encoder>

            <pattern>[%-5level] %d{${DATETIME}} [%thread] %logger{36} - %m%n</pattern>

        </encoder>

        <filter class="ch.qos.logback.classic.filter.LevelFilter">

            <level>DEBUG</level>

            <onMatch>ACCEPT</onMatch>

            <onMismatch>DENY</onMismatch>

        </filter>

        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">

            <fileNamePattern>${ROOT}%d/debug.%i.log</fileNamePattern>

            <maxHistory>${MAXHISTORY}</maxHistory>

            <timeBasedFileNamingAndTriggeringPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">

                <maxFileSize>${FILESIZE}</maxFileSize>

            </timeBasedFileNamingAndTriggeringPolicy>

        </rollingPolicy>

    </appender>

    <!-- TRACE 输入到文件，按日期和文件大小 -->

    <appender name="TRACE-OUT" class="ch.qos.logback.core.rolling.RollingFileAppender">

        <encoder>

            <pattern>[%-5level] %d{${DATETIME}} [%thread] %logger{36} - %m%n</pattern>

        </encoder>

        <filter class="ch.qos.logback.classic.filter.LevelFilter">

            <level>TRACE</level>

            <onMatch>ACCEPT</onMatch>

            <onMismatch>DENY</onMismatch>

        </filter>

        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">

            <fileNamePattern>${ROOT}%d/trace.%i.log</fileNamePattern>

            <maxHistory>${MAXHISTORY}</maxHistory>

            <timeBasedFileNamingAndTriggeringPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">

                <maxFileSize>${FILESIZE}</maxFileSize>

            </timeBasedFileNamingAndTriggeringPolicy>

        </rollingPolicy>

    </appender>

    <!-- Logger 根目录 -->

    <root level="DEBUG">

        <appender-ref ref="STDOUT" />

        <appender-ref ref="ERROR-OUT" />

        <appender-ref ref="WARN-OUT" />

        <appender-ref ref="INFO-OUT" />

        <appender-ref ref="DEBUG-OUT" />

        <appender-ref ref="TRACE-OUT" />

    </root>

</configuration>

启动项目，效果如下：

在百度资料的时候发现控制台还可以给不同的日志级别有不同的颜色，好吧，原谅我的无知。插件名：grep-console

测试结果如下：

码农公寓

1.首先在maven中增加依赖

2.web.xml配置

3.编写logback.xml

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