java 将Log4j2 的日志内容输出到udp上

在Maven 项目中 pom.xml 中添加Log4j2 的依赖 

    <dependency>
      <groupId>org.apache.logging.log4j</groupId>
      <artifactId>log4j-core</artifactId>
      <version>2.14.1</version>
    </dependency>
    <dependency>
      <groupId>org.apache.logging.log4j</groupId>
      <artifactId>log4j-1.2-api</artifactId>
      <version>2.14.1</version>
    </dependency>
    <dependency>
      <groupId>org.apache.logging.log4j</groupId>
      <artifactId>log4j-jul</artifactId>
      <version>2.14.1</version>
    </dependency>
    <dependency>
      <groupId>org.apache.logging.log4j</groupId>
      <artifactId>log4j-slf4j-impl</artifactId>
      <version>2.14.1</version>
    </dependency>
    <!-- 添加 Log4j2 SocketAppender 所需的依赖 -->
    <dependency>
      <groupId>org.apache.logging.log4j</groupId>
      <artifactId>log4j-core</artifactId>
      <version>2.14.1</version>
      <classifier>udp</classifier>
    </dependency>

log4j2的配置文件  log4j2.xml 

<?xml version="1.0" encoding="UTF-8"?>
<Configuration status="WARN">
    <Appenders>
        <Socket name="UdpAppender" host="localhost" port="8101" protocol="udp">
            <PatternLayout pattern="%d{yyyy-MM-dd HH:mm:ss} %-5p %c{1}:%L - %m%n"/>
        </Socket>
    </Appenders>
    <Loggers>
        <Root level="debug">
            <AppenderRef ref="UdpAppender"/>
        </Root>
    </Loggers>
</Configuration>

log4j2.xml 位置

 调用方法

package com.MyLogHelper;

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

public class App 
{
    private static final Logger logger = LogManager.getLogger(App.class);

    public static void main( String[] args )
    {
        System.out.println( "Hello World!" );

        logger.debug("This is a debug message");
        logger.info("This is an info message");
        logger.warn("This is a warn message");
        logger.error("This is an error message");
        logger.fatal("This is a fatal message");
    }
}

这样就可以将Log4j2日志内容输出到 localhost 的 8101 端口上