2-log4j2之使用根控制器輸出日志到控制台

一、添加maven依賴

 

<!-- 使用aliyun鏡像 -->
    <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(亦可使用對應節點屬性配置參考官網地址)

 

<?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、測試代碼

 

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

/**
 * @author : zhangyanqing
 * @time : 2017/12/9
 * @desc : 根控制器日志測試
 */
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");

    }
}