2-log4j2之使用根控制器输出日志到控制台

一、添加maven依赖

<!-- 使用aliyun镜像 -->

    <repositories>

        <repository>

            <id>aliyun</id>

            <name>aliyun</name>

            <url>http://maven.aliyun.com/nexus/content/groups/public</url>

        </repository>

    </repositories>

    <dependencies>

        <dependency>

            <groupId>org.apache.logging.log4j</groupId>

            <artifactId>log4j-api</artifactId>

            <version>${log4j.version}</version>

        </dependency>

        <dependency>

            <groupId>org.apache.logging.log4j</groupId>

            <artifactId>log4j-core</artifactId>

            <version>${log4j.version}</version>

        </dependency>

    </dependencies>

二、log4j2配置文件log4j2.xml(亦可使用对应节点属性配置参考官网地址)

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

<Configuration status="WARN">

    <properties>

        <Property name="console-pattern">%d{yyyy-MM-dd HH:mm:ss.SSS} [%t] [%level] %logger{36} - %msg%n</Property>

    </properties>

    <Appenders>

        <Console name="Console" target="SYSTEM_OUT">

            <PatternLayout pattern="${console-pattern}" />

        </Console>

    </Appenders>

    <Loggers>

        <Root level="info">

            <AppenderRef ref="Console" />

        </Root>

    </Loggers>

</Configuration>

三、测试代码

import org.apache.logging.log4j.LogManager;

import org.apache.logging.log4j.Logger;

/**

 * @author : zhangyanqing

 * @time : 2017/12/9

 * @desc : 根控制器日志测试

 */

public class ConsoleLoggerTest {

    public static final Logger LOGGER = LogManager.getLogger(LogManager.ROOT_LOGGER_NAME);

    public static void main(String[] args){

        LOGGER.trace("trace level");

        LOGGER.debug("debug level");

        LOGGER.info("info level");

        LOGGER.warn("warn level");

        LOGGER.error("error level");

        LOGGER.fatal("fatal level");

    }

}