没事也来配一个logback

工程下载：https://files.cnblogs.com/files/xiandedanteng/logbackCfg20200115.zip

首先创建一个maven项目，pom.xml如下书写：

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">

  <modelVersion>4.0.0</modelVersion>

  <groupId>com</groupId>

  <artifactId>logbackCfg</artifactId>

  <version>0.0.1-SNAPSHOT</version>

    <properties>

        <java.version>1.8</java.version>

    </properties>

    <dependencies>

        <dependency>

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

            <artifactId>logback-classic</artifactId>

            <version>1.1.11</version>

        </dependency>

        <dependency>

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

            <artifactId>logback-core</artifactId>

            <version>1.1.11</version>

        </dependency>

    </dependencies>

</project>

注意上面的dependency是在我本地库既存的logback库，请你也参照自己本地库设置（查看方法：Preference->Maven->User settings->Local Respository），如果没有请在网上寻找官网通用配置。

其次，在src/main/resource放入logback.xml,内容如下：

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

<configuration debug="false">

    <!-- Where are log files -->

    <property name="LOG_HOME" value="d:/logs" />

    <!-- Output to Console -->

    <appender name="STDOUT"

        class="ch.qos.logback.core.ConsoleAppender">

        <encoder

            class="ch.qos.logback.classic.encoder.PatternLayoutEncoder">

            <!--%d:date，%thread:thread，%-5level：error/debug/info... %msg：message，%n:new line -->

            <pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{50} -%msg%n</pattern>

        </encoder>

    </appender>

    <!-- Output to File -->

    <appender name="FILE"

        class="ch.qos.logback.core.rolling.RollingFileAppender">

        <rollingPolicy

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

            <!--log file pathname -->

            <FileNamePattern>${LOG_HOME}/logbackCfg.log.%d{yyyy-MM-dd}.log

            </FileNamePattern>

            <!--days log files will be kept -->

            <MaxHistory>30</MaxHistory>

        </rollingPolicy>

        <encoder

            class="ch.qos.logback.classic.encoder.PatternLayoutEncoder">

            <!--%d:date，%thread:thread，%-5level：error/debug/info... %msg：message，%n:new line -->

            <pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{50} -%msg%n</pattern>

        </encoder>

        <!--size -->

        <triggeringPolicy

            class="ch.qos.logback.core.rolling.SizeBasedTriggeringPolicy">

            <MaxFileSize>10MB</MaxFileSize>

        </triggeringPolicy>

    </appender>

    <!-- log level TRACE, DEBUG, INFO, WARN, ERROR, ALL and OFF,default：DEBUG。-->

    <root level="ALL">

        <appender-ref ref="STDOUT" /> <!-- show log on console -->

        <appender-ref ref="FILE" /> <!-- show log in file -->

    </root>

</configuration>

其三，写代码测试：

package logbackCfg;

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

public class App {

    private final static Logger logger = LoggerFactory.getLogger(App.class);

    public static void main(String[] args) {

        logger.info("秦时明月汉时关");

        logger.error("万里长征人未还");

        logger.debug("但使龙城飞将在");

        logger.trace("不教胡马度阴山");

    }

}

控制台输出：

2020-01-15 15:45:48.409 [main] INFO  logbackCfg.App -秦时明月汉时关

2020-01-15 15:45:48.412 [main] ERROR logbackCfg.App -万里长征人未还

2020-01-15 15:45:48.413 [main] DEBUG logbackCfg.App -但使龙城飞将在

2020-01-15 15:45:48.413 [main] TRACE logbackCfg.App -不教胡马度阴山

文件输出：

2020-01-15 15:44:12.310 [main] INFO  logbackCfg.App -秦时明月汉时关

2020-01-15 15:44:12.313 [main] ERROR logbackCfg.App -万里长征人未还

2020-01-15 15:44:12.313 [main] DEBUG logbackCfg.App -但使龙城飞将在

2020-01-15 15:44:42.366 [main] INFO  logbackCfg.App -秦时明月汉时关

2020-01-15 15:44:42.368 [main] ERROR logbackCfg.App -万里长征人未还

2020-01-15 15:44:42.369 [main] DEBUG logbackCfg.App -但使龙城飞将在

2020-01-15 15:44:42.369 [main] TRACE logbackCfg.App -不教胡马度阴山

2020-01-15 15:45:48.409 [main] INFO  logbackCfg.App -秦时明月汉时关

2020-01-15 15:45:48.412 [main] ERROR logbackCfg.App -万里长征人未还

2020-01-15 15:45:48.413 [main] DEBUG logbackCfg.App -但使龙城飞将在

2020-01-15 15:45:48.413 [main] TRACE logbackCfg.App -不教胡马度阴山

参考：

https://www.cnblogs.com/warking/p/5710303.html

巴特西

没事也来配一个logback

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