slf4j打印日志必须的三个依赖包

系统管理员 2022-01-07 07:41 345阅读 0赞

## 正文 ##

日志相关包 slf4j打印日志必须的三个依赖包  
slf4j假设使用log4j做为底层日志工具，运行以上程序需要三个包：

*  log4j-1.2.xx.jar、
 *  slf4j-api-x.x.x.jar、
 *  slf4j-log4j12-x.x.x.jar

log4j.properties文件配置：

### set log levels ###
    log4j.rootLogger = INFO,root,stdout
    
    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.SSSXXX} %-5p [%t] [%C %L] %m%n
    
    log4j.appender.root.Append=true
    log4j.appender.root.File=${scheduleProject}logs/root.log
    log4j.appender.root.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss.SSSXXX} %-5p [%t] [%C %L] %m%n
    log4j.appender.root.layout=org.apache.log4j.PatternLayout
    log4j.appender.root.MaxBackupIndex=50
    log4j.appender.root.MaxFileSize=20MB
    log4j.appender.root=org.apache.log4j.RollingFileAppender
    log4j.appender.root.zipPermission=400
    log4j.appender.root.logPermission=600

web.xml配置：

<?xml version="1.0" encoding="UTF-8"?>
    <web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
             xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
             version="3.1" metadata-complete="true">
    
        <display-name>Archetype Created Web Application</display-name>
    
          
          <context-param>
              <param-name>log4jConfigLocation</param-name>
              <param-value>classpath:config/log4j.properties</param-value>
          </context-param>
    
          
          <context-param>
              <param-name>log4jRefreshInterval</param-name>
              <param-value>10000</param-value>
          </context-param>
    
        
        <listener>
            <listener-class>org.springframework.web.util.Log4jConfigListener</listener-class>
        </listener>
    
        
           <context-param>
               <param-name>webAppRootKey</param-name>
               <param-value>scheduleProject</param-value>
           </context-param>
    
        
        <filter>
            <filter-name>characterEncodingFilter</filter-name>
            <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
            
            <init-param>
                <param-name>encoding</param-name>
                <param-value>utf-8</param-value>
            </init-param>
        </filter>
        <filter-mapping>
            <filter-name>characterEncodingFilter</filter-name>
            <url-pattern>/*</url-pattern>
        </filter-mapping>
    
        
        <servlet>
            <servlet-name>springmvc</servlet-name>
            <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
            <init-param>
                <param-name>contextConfigLocation</param-name>
                <param-value>classpath*:config/spring-*.xml</param-value>
            </init-param>
        </servlet>
        <servlet-mapping>
            <servlet-name>springmvc</servlet-name>
            
            <url-pattern>/</url-pattern>
        </servlet-mapping>
    
    </web-app>

--------------------

# 作者简洁 #

> 作者：小碗汤，一位热爱、认真写作的小伙，目前维护原创公众号：『我的小碗汤』，专注于写golang、docker、kubernetes等知识等提升硬实力的文章，期待你的关注。 转载说明：务必注明来源（注明：来源于公众号：我的小碗汤， 作者：小碗汤）