Spring Boot 整合 log4j2 实现日志管理

た入场券 2024-02-18 16:16 33阅读 0赞

摘要：上一篇，我们讲了Spring Boot 整合 log4j实现日志管理，这一篇接着说一下Spring Boot 整合 log4j2,。

一：还是新建一个java工程：

![Center][]

二：增加log4j2的pom.xml配置，如下：

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
             xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    
        <groupId>com.micai</groupId>
        <artifactId>micai-springboot-log4j2-9</artifactId>
        <version>1.0-SNAPSHOT</version>
        <modelVersion>4.0.0</modelVersion>
    
        <packaging>jar</packaging>
    
        <name>micai-springboot-log4j2-9</name>
        <url>http://maven.apache.org</url>
    
        
        <parent>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-parent</artifactId>
            <version>1.5.1.RELEASE</version>
        </parent>
    
        <dependencies>
            
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-web</artifactId>
                <exclusions>
                    <exclusion>
                        <groupId>org.springframework.boot</groupId>
                        <artifactId>spring-boot-starter-logging</artifactId>
                    </exclusion>
                </exclusions>
            </dependency>
            
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-log4j2</artifactId>
            </dependency>
        </dependencies>
    </project>

三：新建log4j2.xml配置文件：

<?xml version="1.0" encoding="UTF-8"?>
    <Configuration status="WARN" monitorInterval="30">
        <Properties>
            <Property name="PID">????</Property>
            <Property name="LOG_PATTERN">%clr{%d{yyyy-MM-dd HH:mm:ss.SSS}}{faint} %clr{%5p} %clr{${sys:PID}}{magenta} %clr{---}{faint} %clr{[%15.15t]}{faint} %clr{%-40.40c{1.}}{cyan} %clr{:}{faint} %m%n%xwEx</Property>
        </Properties>
        <Appenders>
            <Console name="Console" target="SYSTEM_OUT" follow="true">
                <PatternLayout pattern="${LOG_PATTERN}"/>
            </Console>
        </Appenders>
        <Loggers>
            <Logger name="org.hibernate.validator.internal.util.Version" level="warn" />
            <Logger name="org.apache.coyote.http11.Http11NioProtocol" level="warn" />
            <Logger name="org.apache.tomcat.util.net.NioSelectorPool" level="warn" />
    
            <Root level="info">
                <AppenderRef ref="Console"/>
            </Root>
        </Loggers>
    </Configuration>

四：在java类中使用log4j2日志，如下：

package com.micai.springboot.web;
    
    import org.slf4j.Logger;
    import org.slf4j.LoggerFactory;
    import org.springframework.web.bind.annotation.RequestMapping;
    import org.springframework.web.bind.annotation.RestController;
    
    /**
     * @author zhaoxinguo on 2017/8/21.
     */
    @RestController //提供实现了REST API，可以服务JSON,XML或者其他。这里是以String的形式渲染出结果。
    public class HelloWorldController {
    
        private Logger logger = LoggerFactory.getLogger(this.getClass());
    
        @RequestMapping("/") //提供路由信息，”/“路径的HTTP Request都会被映射到sayHello方法进行处理。
        public String sayHello(){
            logger.info("hello world");
            return "Hello,World!";
        }
    
    }

源代码地址：[https://gitee.com/micai/micai-springboot/tree/master/micai-springboot-log4j2-9][https_gitee.com_micai_micai-springboot_tree_master_micai-springboot-log4j2-9]

[Center]: https://image.dandelioncloud.cn/pgy_files/images/2024/01/29/45c1fd9977ce4276a8939c8260d64315.png
[https_gitee.com_micai_micai-springboot_tree_master_micai-springboot-log4j2-9]: https://gitee.com/micai/micai-springboot/tree/master/micai-springboot-log4j2-9