Maven项目中Log4j2日志配置-优快云博客

本文链接：https://blog.youkuaiyun.com/lb245557472/article/details/88640857

在maven项目中的pom.xml中配置：

<dependency>
    <groupId>org.apache.logging.log4j</groupId>
    <artifactId>log4j-core</artifactId>
    <version>2.11.0</version>
</dependency>

src路径下创建log4j2.properties文件：

# Declare loggers
name=LoggingConfig
appenders=a_console, a_rolling
rootLogger.level=info
rootLogger.appenderRefs=ar_console,ar_rolling
rootLogger.appenderRef.ar_console.ref=StdoutAppender
rootLogger.appenderRef.ar_rolling.ref=DailyRollingAppender

# Console logger
appender.a_console.type=Console
appender.a_console.name=StdoutAppender
appender.a_console.layout.type=PatternLayout
appender.a_console.layout.pattern=%d{ISO8601} [%t] %-5p (%F\:%L) - %m%n

# File logger
appender.a_rolling.type=RollingFile
appender.a_rolling.name=DailyRollingAppender
appender.a_rolling.layout.pattern=%d{ISO8601} [%t] %-5p (%F\:%L) - %m%n

appender.a_rolling.fileName=target/logs/${date:yyyy-MM-dd}.log
appender.a_rolling.filePattern=log4j2-sample-%d{yyyy-MM-dd}.log

appender.a_rolling.layout.type=PatternLayout
appender.a_rolling.policies.type=Policies
appender.a_rolling.policies.time.type=TimeBasedTriggeringPolicy
appender.a_rolling.policies.time.interval=1

代码测试：

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

public class TestLog {
    public static void main(String[] args) {
        Logger log= LogManager.getLogger("test-log");
        log.info("test info");
        log.debug("test debug");
        log.warn("test warn");
        log.error("test error");
    }
}

参考：

Log4j2 简单使用