場景

SpringBoot項目中使用log4j進行日志管理。

實現

1.因為SpringBoot默認是使用logback，所以要修改pom.xml 過濾掉自帶的spring-boot-starter-logging,然后添加spring-boot-starter-log4j依賴包。

<!-- log4j --><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter</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-log4j</artifactId><version>1.3.8.RELEASE</version></dependency>

2.在項目的src/main/resources下新建log4j.prpperties文件

?

代碼如下

### set log levels ###??? log4j.rootLogger = INFO,DEBUG, console, infoFile, errorFile ,debugfile,mail LocationInfo=true???log4j.appender.console = org.apache.log4j.ConsoleAppender? log4j.appender.console.Target = System.out? log4j.appender.console.layout = org.apache.log4j.PatternLayoutlog4j.appender.console.layout.ConversionPattern =[%d{yyyy-MM-dd HH:mm:ss,SSS}]-[%p]:%m?? %x %nlog4j.appender.infoFile = org.apache.log4j.DailyRollingFileAppender? log4j.appender.infoFile.Threshold = INFO? log4j.appender.infoFile.File = D:/logs/log.log log4j.appender.infoFile.DatePattern = '.'yyyy-MM-dd'.log'? log4j.appender.infoFile.Append=true log4j.appender.infoFile.layout = org.apache.log4j.PatternLayout? log4j.appender.infoFile.layout.ConversionPattern =[%d{yyyy-MM-dd HH:mm:ss,SSS}]-[%p]:%m? %x %nlog4j.appender.errorFile = org.apache.log4j.DailyRollingFileAppender? log4j.appender.errorFile.Threshold = ERROR? log4j.appender.errorFile.File = D:/logs/error.log? log4j.appender.errorFile.DatePattern = '.'yyyy-MM-dd'.log'? log4j.appender.errorFile.Append=true? log4j.appender.errorFile.layout = org.apache.log4j.PatternLayout? log4j.appender.errorFile.layout.ConversionPattern =[%d{yyyy-MM-dd HH:mm:ss,SSS}]-[%p]:%m? %x %nlog4j.appender.debugfile = org.apache.log4j.DailyRollingFileAppender? log4j.appender.debugfile.Threshold = DEBUG? log4j.appender.debugfile.File = D:/logs/debug.log? log4j.appender.debugfile.DatePattern = '.'yyyy-MM-dd'.log'? log4j.appender.debugfile.Append=true? log4j.appender.debugfile.layout = org.apache.log4j.PatternLayout? log4j.appender.debugfile.layout.ConversionPattern =[%d{yyyy-MM-dd HH:mm:ss,SSS}]-[%p]:%m? %x %n

3.在controller下新建TestLog4jController.java

package com.example.demo.controller;import org.apache.log4j.Logger; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.EnableAutoConfiguration; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.ResponseBody;@Controller @EnableAutoConfiguration public class TestLog4jController {private static Logger log = Logger.getLogger(TestLog4jController.class);@ResponseBody@RequestMapping("/testsLog4j")public String tests() {log.debug("debug日志");log.info("info日志");log.warn("warn日志");log.error("error日志");return "testsLog4j";}public static void main(String[] args) {SpringApplication.run(TestLog4jController.class, args);} }

?

導包時要注意不要導錯包

4.運行結果

打開瀏覽器輸入：

http://localhost:8080/testsLog4j

控制臺輸出

5.找到配置的日志文件的輸出目錄

源碼下載

https://download.csdn.net/download/badao_liumang_qizhi/11070183

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