SpringBoot2.x整合Log4j

SpringBoot2.x整合log4j

在项目开发过程中，日志是必不可少的，此文将讲解SpringBoot2.x中log4j的整合。

1：引入依赖jar包

<dependency>                <groupId>org.springframework.bootgroupId>                <artifactId>spring-boot-starter-log4jartifactId>                <version>1.3.8.RELEASEversion>           dependency>

2：增加log4j.properties配置文件

# LOG4J配置 log4j.rootCategory=INFO, stdout, file   # 控制台输出 log4j.appender.stdout=org.apache.log4j.ConsoleAppender log4j.appender.stdout.layout=org.apache.log4j.PatternLayout log4j.appender.stdout.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss,SSS} %5p %c{1}:%L - %m%n   # root日志输出到文件 log4j.appender.file=org.apache.log4j.DailyRollingFileAppender log4j.appender.file.file=/logsdata/logs/springboot-log4j-all.log log4j.appender.file.DatePattern='.'yyyy-MM-dd log4j.appender.file.layout=org.apache.log4j.PatternLayout log4j.appender.file.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss,SSS} %5p %c{1}:%L - %m%n   # 按不同package进行输出 # com.micai包下的日志配置 log4j.category.com.micai=DEBUG, didifile # com.micai下的日志输出 log4j.appender.didifile=org.apache.log4j.DailyRollingFileAppender log4j.appender.didifile.file=/logsdata/logs/springboot-log4j-my.log log4j.appender.didifile.DatePattern='.'yyyy-MM-dd log4j.appender.didifile.layout=org.apache.log4j.PatternLayout log4j.appender.didifile.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss,SSS} %5p %c{1}:%L ---- %m%n   # ERROR级别输出到特定的日志文件中 log4j.logger.error=errorfile # error日志输出 log4j.appender.errorfile=org.apache.log4j.DailyRollingFileAppender log4j.appender.errorfile.file=/logsdata/logs/springboot-log4j-error.log log4j.appender.errorfile.DatePattern='.'yyyy-MM-dd log4j.appender.errorfile.Threshold = ERROR log4j.appender.errorfile.layout=org.apache.log4j.PatternLayout log4j.appender.errorfile.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss,SSS} %5p %c{1}:%L - %m%n

3：使用log4j

import java.util.List;   import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RestController;   import com.liujia.springdemo.entity.User; import com.liujia.springdemo.service.UserService;   @RestController public class UserController {        @Autowired      private UserService userService;      private Logger logger = LoggerFactory.getLogger(this.getClass());        @RequestMapping("/getallusers")      public List getAllUsers() {           logger.info("getallusers被调用了");           return userService.getAll();      } }

运行结果

 

日志详情截图

 

代码下载路径如下

https://download.csdn.net/download/caoshangfeidie000/10670755