jar包：

log4j-api-2.10.0.jar

log4j-core-2.10.10.jar

log4j-1.2-api-2.10.0.jar

log4j-slf4j-impl-2.10.10.jar

slf4j-api-1.7.25.jar

使用：

public class AAA{
static logger LOGGER=MyLOG.getLog(AAA.class);
public static void main(String[] args) {
  LOGGER.info("日誌資訊")   
}

}

public class MyLOG{

    
 
public static Logger getLog(Class<?> clazz){
 
      return LoggerFactory.getLogger(clazz.getName());
    }
    public static Logger getLog(String name){
 
      return LoggerFactory.getLogger(name);
    }

}

log4j2.xml配置：

name="P_NAME",自己定義

<?xml version="1.0" encoding="UTF-8"
 
?>
<Configuration status="OFF" monitorInterval="30">
    <properties>
        <!--設定日誌在硬碟上輸出的目錄-->
         <property name="P_NAME">AAA</property>
        <property name="LOG_HOME">D:/logger/${P_NAME}</property>
    </properties>

https://blog.csdn.net/shiyong1949/article/details/54666992

https://blog.csdn.net/zheng0518/article/details/69558893