日志(log4j2)

日志测试java代码如下:

package com.learn.test;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;

public class Test {

    public static void main(String[] args) {
        //创建日志记录
        Logger logger = LogManager.getLogger(Test.class);
        logger.fatal("fatal msg:致命的信息");
        logger.error("error msg:错误的信息");
        logger.warn("warn msg:警告信息");
        logger.info("info msg:普通信息");
        logger.debug("debug msg: 问题信息");
        logger.trace("trace msg:堆栈信息");
    }
}

log4j2.xml配置如下，使用需要log4j2的core和api架包支持,放置classpath路径即可：
<?xml version="1.0" encoding="UTF-8"?>

<!-- 此开关控制的是日志的日志 -->
<configuration status="OFF">
    <appenders>
        <Console name="myConsole" target="SYSTEM_OUT">
            <PatternLayout pattern="[%-5p][%d{yyyy-MM-dd HH:mm:ss}] [%c %L] %m%n" />
        </Console>
        <File name="myLogFile" fileName="E:/log/log4j2/log.log" append="true">
            <PatternLayout pattern="[%-5p][%d{yyyy-MM-dd HH:mm:ss}] [%c %L] %m%n" />
        </File>
        <RollingFile name="myRollingFile" fileName="E:/log/log4j2/app.log"
                     filePattern="E:/log/log4j2/$${date:yyyy-MM}/app-%d{yyyy-MM-dd}-%i.log.gz">
            <PatternLayout pattern="[%-5p][%d{yyyy-MM-dd HH:mm:ss}] [%c %L] %m%n" />
            <SizeBasedTriggeringPolicy size="10kb" />
        </RollingFile>
    </appenders>

    <loggers>
        <!--
        <logger name="全限定性类名或接口" level="info">
            <appender-ref ref="myConsole" />
        </logger>
        -->

        <root level="debug">
            <appender-ref ref="myConsole" />
            <appender-ref ref="myLogFile" />
            <appender-ref ref="myRollingFile" />
        </root>
    </loggers>

</configuration>