先看个效果apache
1、log4j日志打印配置
1.一、maven依赖
<dependency> <groupId>log4j</groupId> <artifactId>log4j</artifactId> <version>1.2.17</version> </dependency>
1.二、新建log4j.properties文件
项目src目录下新建一个文件 “log4j.properties” 文件内容以下app
log4j.rootLogger=CONSOLE,stdout,logfile #stdout控制器 log4j.appender.stdout=org.apache.log4j.ConsoleAppender log4j.appender.stdout.Target=System.out log4j.appender.stdout.layout=org.apache.log4j.PatternLayout #输出格式 log4j.appender.stdout.layout.ConversionPattern=%d %p [%c] %m%n #文件路径输出 log4j.appender.logfile=org.apache.log4j.RollingFileAppender log4j.appender.logfile.File=D:/keyservice.log log4j.appender.logfile.layout=org.apache.log4j.PatternLayout log4j.appender.logfile.layout.ConversionPattern=%d %p [%c] %m%n
1.三、读取log4j.properties文件
封装一个类来读取配置文件log4j.propertiesmaven
package com; import org.apache.log4j.Logger; import org.apache.log4j.PropertyConfigurator; public class ZgxLoggerUtil { private static Logger log = Logger.getLogger(ZgxLoggerUtil.class); public static Logger getLogger(Class clazz) { // 封装这个的主要缘由是为了读取log4j.properties配置文件 否则每次都要写一次 PropertyConfigurator.configure(String.format("%s\\src\\log4j.properties", System.getProperty("user.dir"))); Logger log = Logger.getLogger(clazz); return log; } }
1.四、开始使用
package com; import org.apache.log4j.Logger; public class Test { private static Logger log = ZgxLoggerUtil.getLogger(Test.class); public static void main(String[] args) { log.info("this is info log test"); log.debug("this is debug log test"); log.warn("this is warn log test"); log.error("this is error log test"); log.fatal("this is fatal log test"); } }
2、日志颜色设置
下载 “Grep Console” 插件this
下载提示重启IDEA 重启后 配置便可spa