<dependencies>

        <!--Begin LogBack Log-->

        <!-- https://mvnrepository.com/artifact/ch.qos.logback/logback-classic -->

        <dependency>

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

            <artifactId>logback-classic</artifactId>

            <version>1.2.3</version>

        </dependency>

        <!-- https://mvnrepository.com/artifact/org.slf4j/slf4j-api -->

        <dependency>

            <groupId>org.slf4j</groupId>

            <artifactId>slf4j-api</artifactId>

            <version>1.7.25</version>

        </dependency>

        <!--Logback to elk-->

        <!-- https://mvnrepository.com/artifact/net.logstash.logback/logstash-logback-encoder -->

        <dependency>

            <groupId>net.logstash.logback</groupId>

            <artifactId>logstash-logback-encoder</artifactId>

            <version>5.2</version>

        </dependency>

        <!--End LogBack Log-->

    </dependencies>

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

<configuration debug="false">

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

        <encoder>

            <pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n</pattern>

        </encoder>

    </appender>

    <appender name="File" class="ch.qos.logback.core.rolling.RollingFileAppender">

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

            <fileNamePattern>log/app.%d{yyyy-MM-dd}.log.tar.gz</fileNamePattern>

            <maxHistory>7</maxHistory>

        </rollingPolicy>

        <encoder>

            <pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n</pattern>

        </encoder>

    </appender>

    <appender name="LogStash" class="net.logstash.logback.appender.LogstashTcpSocketAppender">

        <destination>127.0.0.1:5044</destination>

        <encoder charset="UTF-8" class="net.logstash.logback.encoder.LogstashEncoder">

            <customFields>{"appName":"myapp-service"}</customFields>

        </encoder>

        <connectionStrategy>

            <roundRobin>

                <connectionTTL>5 minutes</connectionTTL>

            </roundRobin>

        </connectionStrategy>

    </appender>

    <root level="INFO">

        <appender-ref ref="File"/>

        <appender-ref ref="Console"/>

        <appender-ref ref="LogStash"/>

    </root>

</configuration>

package com.test.elktest;

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

public class Application {

    private static final Logger log = LoggerFactory.getLogger(Application.class);

    public static void main(String[] args) {

        log.info("welcome to song xing zhu blogs.");

    }

}