springmvc中如何配置控制台输出日志

迈不过友情╰ 2022-05-15 12:25 421阅读 0赞

1.场景还原

日志对于开发来说，无疑是解决问题的杀手锏；程序员能够根据日志报出的错误原因，对症下药，及时的解决bug；今天笔者就讲讲如何在springmvc工程中配置日志输出

2.实现方案

①加入日志jar包pom依赖

<dependency>
        <groupId>org.slf4j</groupId>
        <artifactId>slf4j-log4j12</artifactId>
        <version>1.7.5</version>
    </dependency>

②在resources目录下添加日志文件log4j.properties

#LOG_DIR:/usr/local/.../logs
    LOG_DIR = E:\\logs
    #Level:ERROR,WARN,INFO,DEBUG
    log4j.rootLogger = DEBUG,Console,FileInfo,FileError
    
    log4j.appender.Console = org.apache.log4j.ConsoleAppender
    log4j.appender.Console.Threshold = DEBUG
    log4j.appender.Console.ImmediateFlush = true
    log4j.appender.Console.Target = SYSTEM_OUT
    log4j.appender.Console.layout = org.apache.log4j.PatternLayout
    log4j.appender.Console.layout.ConversionPattern = [%-5p] %d{yyyy-MM-dd HH:mm:ss,SSS} method:%l%n%m%n
    
    log4j.appender.FileInfo = org.apache.log4j.DailyRollingFileAppender
    log4j.appender.FileInfo.Threshold = INFO
    log4j.appender.FileInfo.ImmediateFlush = true
    log4j.appender.FileInfo.Append = true
    log4j.appender.FileInfo.DatePattern = '_'yyyy-MM-dd'.log'
    log4j.appender.FileInfo.encoding=UTF-8
    log4j.appender.FileInfo.File = ${LOG_DIR}/info
    log4j.appender.FileInfo.layout = org.apache.log4j.PatternLayout
    log4j.appender.FileInfo.layout.ConversionPattern = [%-5p][%d{ISO8601}]%m%n
    
    log4j.appender.FileError = org.apache.log4j.DailyRollingFileAppender
    log4j.appender.FileError.Threshold = ERROR
    log4j.appender.FileError.ImmediateFlush = true
    log4j.appender.FileError.Append = true
    log4j.appender.FileError.DatePattern = '_'yyyy-MM-dd'.log'
    log4j.appender.FileError.encoding=UTF-8
    log4j.appender.FileError.File = ${LOG_DIR}/error
    log4j.appender.FileError.layout = org.apache.log4j.PatternLayout
    log4j.appender.FileError.layout.ConversionPattern = [%-5p][%d{ISO8601}]%m%n
    
    log4j.appender.cn.yivi.service.pay = info,pay
    log4j.additivity.cn.yivi.service.pay = false
    log4j.appender.pay = org.apache.log4j.DailyRollingFileAppender
    log4j.appender.pay.Threshold = INFO
    log4j.appender.pay.ImmediateFlush = true
    log4j.appender.pay.Append = true
    log4j.appender.pay.DatePattern = '_'yyyy-MM-dd'.log'
    log4j.appender.pay.encoding=UTF-8
    log4j.appender.pay.File = ${LOG_DIR}/pay
    log4j.appender.pay.layout = org.apache.log4j.PatternLayout
    log4j.appender.pay.layout.ConversionPattern = [%-5p][%d{ISO8601}]%m%n

③配置web.xml日志监听

<context-param>
      <param-name>log4jConfigLocation</param-name>
      <param-value>classpath:log4j.properties</param-value>
    </context-param>
    
    <listener>
      <listener-class>org.springframework.web.util.Log4jConfigListener</listener-class>
    </listener>