来源:blog.csdn.net/gaopinqiang/article/details/109228641
上一篇干货:SpringBoot 设置定时任务,求求你别再写死了~,太low了!动态定时任务真的太爽了!
springboot日志配置:
springboot默认日志是打印再console中的,不会保存在文件中。我们项目上线肯定要保存日志用于分析的。
一、使用xml配置日志保存(并不需要pom配置slf4j依赖,starter里面已经配置了依赖了)
1、在项目的resources目录下创建一个【logback-spring.xml】日志配置文件
名称只要是一 logback开头就行,测试使用log.xml并不会生成日志。合法名称:
logback.xml
、logback-spring.xml
备注:要配置
logback-spring.xml
,springboot会默认加载此文件,为什么不配置logback.xml
,因为logback.xml
会先application.properties
加载,而logback-spring.xml
会后于application.properties
加载,这样我们在application.properties
文中设置日志文件名称和文件路径才能生效。Spring Boot 基础就不介绍了,推荐看这个免费教程:
https://github.com/javastacks/spring-boot-best-practice
2、编写xml文件内容:
<?xml version='1.0' encoding='UTF-8'?>
<configuration scan='true' scanPeriod='60 seconds' debug='false'>
<contextName>logback</contextName>
<appender name='console' class='ch.qos.logback.core.ConsoleAppender'>
<encoder>
<pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger - %msg%n</pattern>
</encoder>
</appender>
<appender name='logFile' class='ch.qos.logback.core.rolling.RollingFileAppender'>
<Prudent>true</Prudent>
<rollingPolicy class='ch.qos.logback.core.rolling.TimeBasedRollingPolicy'>
<FileNamePattern>
poslog/%d{yyyy-MM-dd}/%d{yyyy-MM-dd}.log
</FileNamePattern>
<maxHistory>7</maxHistory>
</rollingPolicy>
<layout class='ch.qos.logback.classic.PatternLayout'>
<Pattern>
%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger - %msg%n
</Pattern>
</layout>
</appender>
<root level='INFO'>
<appender-ref ref='console' />
<appender-ref ref='logFile' />
</root>
</configuration>上述配置的编码中,对应符号的含义如下、另外,最新 Spring Boot 面试题整理好了,点击Java面试库小程序在线刷题。
%d{HH:mm:ss.SSS}
——日志输出时间%thread
——输出日志的进程名字,这在Web应用以及异步任务处理中很有用%-5level
——日志级别,并且使用5个字符靠左对齐%logger
——日志输出者的名字%msg
——日志消息%n
——平台的换行符3、编写打印日志
private Logger logger = LoggerFactory.getLogger(TestController.class);
logger.info('name = ' + name + ' || views = ' + views);// 使用4、启动测试
在当前文件夹下会创建一个【poslog/2020-10/22】的文件夹,里面会按天生成日志:【2020-10-22.log】,例如:
2020-10-22 16:38 [main] INFO org.springframework.boot.web.embedded.tomcat.TomcatWebServer - Tomcat initialized with port(s): 8088 (http)
2020-10-22 16:38 [main] INFO org.apache.coyote.http11.Http11NioProtocol - Initializing ProtocolHandler ['http-nio-8088']
2020-10-22 16:38 [main] INFO org.apache.catalina.core.StandardService - Starting service [Tomcat]
2020-10-22 16:38 [main] INFO org.apache.catalina.core.StandardEngine - Starting Servlet engine: [Apache Tomcat/9.0.38]
2020-10-22 16:38 [main] INFO org.apache.catalina.core.AprLifecycleListener - Loaded Apache Tomcat Native library [1.2.23] using APR version [1.7.0].
2020-10-22 16:38 [main] INFO org.apache.catalina.core.AprLifecycleListener - APR capabilities: IPv6 [true], sendfile [true], accept filters [false], random [true].
2020-10-22 16:38 [main] INFO org.apache.catalina.core.AprLifecycleListener - APR/OpenSSL configuration: useAprConnector [false], useOpenSSL [true]
2020-10-22 16:38 [main] INFO org.apache.catalina.core.AprLifecycleListener - OpenSSL successfully initialized [OpenSSL 1.1.1c 28 May 2019]
2020-10-22 16:38 [main] INFO org.apache.catalina.core.ContainerBase.[Tomcat].[localhost].[/] - Initializing Spring embedded WebApplicationContext
2020-10-22 16:38 [main] INFO org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext - Root WebApplicationContext: initialization completed in 1422 ms
2020-10-22 16:38 [main] INFO org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor - Initializing ExecutorService 'applicationTaskExecutor'
2020-10-22 16:38 [main] INFO org.apache.coyote.http11.Http11NioProtocol - Starting ProtocolHandler ['http-nio-8088']
2020-10-22 16:38 [main] INFO org.springframework.boot.web.embedded.tomcat.TomcatWebServer - Tomcat started on port(s): 8088 (http) with context path ''
2020-10-22 16:38 [main] INFO com.example.demo.DockerComposeTestApplication - Started DockerComposeTestApplication in 2.841 seconds (JVM running for 3.257)备注:发现使用这个默认不用配置pom依赖,最新的
spring-boot-starter-web
中已经集成了。另外,最新 Spring Boot 面试题整理好了,点击Java面试库小程序在线刷题。总结:启动一个项目,直接将
logback-spring.xml
文件复制到resources目录下就可以实现日志文件记录。非常方便。二、进阶配置:
Spring Boot 基础就不介绍了,推荐看这个免费教程:
https://github.com/javastacks/spring-boot-best-practice
分类logback.xml配置:
日志配置到d盘了
<?xml version='1.0' encoding='UTF-8'?>
<configuration>
<property name='log.path' value='d:/logback' />
<property name='log.pattern' value='%d{HH:mm:ss.SSS} [%thread] %-5level %logger{20} - [%method,%line] - %msg%n' />
<appender name='console' class='ch.qos.logback.core.ConsoleAppender'>
<encoder>
<pattern>${log.pattern}</pattern>
</encoder>
</appender>
<appender name='file_info' class='ch.qos.logback.core.rolling.RollingFileAppender'>
<file>${log.path}/sys-info.log</file>
<rollingPolicy class='ch.qos.logback.core.rolling.TimeBasedRollingPolicy'>
<fileNamePattern>${log.path}/sys-info.%d{yyyy-MM-dd}.log</fileNamePattern>
<maxHistory>60</maxHistory>
</rollingPolicy>
<encoder>
<pattern>${log.pattern}</pattern>
</encoder>
<filter class='ch.qos.logback.classic.filter.LevelFilter'>
<onMatch>ACCEPT</onMatch>
<onMismatch>DENY</onMismatch>
</filter>
</appender>
<appender name='file_error' class='ch.qos.logback.core.rolling.RollingFileAppender'>
<file>${log.path}/sys-error.log</file>
<rollingPolicy class='ch.qos.logback.core.rolling.TimeBasedRollingPolicy'>
<fileNamePattern>${log.path}/sys-error.%d{yyyy-MM-dd}.log</fileNamePattern>
<maxHistory>60</maxHistory>
</rollingPolicy>
<encoder>
<pattern>${log.pattern}</pattern>
</encoder>
<filter class='ch.qos.logback.classic.filter.LevelFilter'>
<level>ERROR</level>
<onMatch>ACCEPT</onMatch>
<onMismatch>DENY</onMismatch>
</filter>
</appender>
<appender name='sys-user' class='ch.qos.logback.core.rolling.RollingFileAppender'>
<file>${log.path}/sys-user.log</file>
<rollingPolicy class='ch.qos.logback.core.rolling.TimeBasedRollingPolicy'>
<fileNamePattern>${log.path}/sys-user.%d{yyyy-MM-dd}.log</fileNamePattern>
<maxHistory>60</maxHistory>
</rollingPolicy>
<encoder>
<pattern>${log.pattern}</pattern>
</encoder>
</appender>
<logger name='com.example' level='debug' />
<logger name='org.springframework' level='warn' />
<root level='info'>
<appender-ref ref='console' />
</root>
<root level='info'>
<appender-ref ref='file_info' />
<appender-ref ref='file_error' />
</root>
<logger name='sys-user' level='info'>
<appender-ref ref='sys-user'/>
</logger>
</configuration>还可以在application.yml中配置
# 日志配置
logging:
level:
com.example: info
org.springframework: warn配置info就只有info以上日志才会输出
如果配置
com.example: debug
,那么我们项目com.example
包里面debug以上的日志也会输出。
来个“分享、点赞、在看”👇
联系客服