lombok annotation using the @ Slf4j

The first

rely

• IDEA plug-in installation lombok
• IDEA Configuration
  
• Configuring maven

        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <version>1.16.20</version>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-simple</artifactId>
            <version>1.7.25</version>
        </dependency>

example

package com.ydfind;

import lombok.extern.slf4j.Slf4j;

@Slf4j
public class MainApp {
    public static void main(String[] args) {
        log.info("HelloWorld");
    }
}

The results are as follows

The second use log4j

rely

See above the previous two. maven configuration is as follows:

        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <version>1.16.20</version>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-log4j12</artifactId>
            <version>1.7.25</version>
        </dependency>

Join log4j.xml need to file resource directory maven idea of ​​the project, as follows:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE log4j:configuration PUBLIC "-//log4j/log4j Configuration//EN" "log4j.dtd">
<log4j:configuration>
    <appender name="myConsole" class="org.apache.log4j.ConsoleAppender">
        <param name="Threshold" value="DEBUG"/>
        <layout class="org.apache.log4j.PatternLayout">
            <param name="ConversionPattern" value="[%d{HH:mm:ss:SSS}] [%p] - %l - %m%n"/>
        </layout>
    </appender>
    <root>
        <level value="DEBUG"/>
        <appender-ref ref="myConsole" />
    </root>
</log4j:configuration>

Running the above MainApp.java

The third slf4j + logback

…to be continued