SpringBoot的Log4j2配置

添加依赖

		
            org.springframework.boot
            spring-boot-starter
            
            
                
                    org.springframework.boot
                    spring-boot-starter-logging
                
            
        
		
            org.springframework.boot
            spring-boot-starter-log4j2
        
 		
        
        com.fasterxml.jackson.dataformat
        jackson-dataformat-yaml
        

       

在application.yml里面配置log4j2.yml

logging:
  config: classpath:log4j-spring.yml

在resources下创建log4j-spring.yml文件

Configuration:
  status: OFF
  name: YAMLConfigTest
  properties:
    property:
      name: filename
      value: target/test-yaml.log
  thresholdFilter:
    level: debug
  appenders:
    #只接受程序中DEBUG级别的日志进行处理
    Console:
      name: Console
      target: SYSTEM_OUT
      ThresholdFilter:
        level: DEBUG
        onMatch: ACCEPT
        onMismatch: DENY
      PatternLayout:
        Pattern: "[%d{HH:mm:ss.SSS}] %-5level %class{36} %L %M - %msg%xEx%n"
    #处理DEBUG级别的日志，并把该日志放到logs/debug.log文件中
    RollingFile:
      #打印出DEBUG级别日志，每次大小超过size，则这size大小的日志会自动存入按年份-月份建立的文件夹下面并进行压缩，作为存档
      -
        name: RollingFileDebug
        fileName: ./logs/debug.log
        filePattern: "logs/$${date:yyyy-MM}/debug-%d{yyyy-MM-dd}-%i.log.gz"
        PatternLayout:
          Pattern: "[%d{yyyy-MM-dd HH:mm:ss}] %-5level %class{36} %L %M - %msg%xEx%n"
        Filters:
          ThresholdFilter:
            -
              level: DEBUG
            -
              level: INFO
              onMatch: DENY
              onMismatch: NEUTRAL
        Policies:
          SizebasedTriggeringPolicy:
            size: 512MB
      #处理INFO级别的日志，并把该日志放到logs/info.log文件中
      -
        name: RollingFileInfo
        fileName: ./logs/info.log
        filePattern: "logs/$${date:yyyy-MM}/info-%d{yyyy-MM-dd}-%i.log.gz"
        PatternLayout:
          Pattern: "[%d{yyyy-MM-dd HH:mm:ss}] %-5level %class{36} %L %M - %msg%xEx%n"
        Filters:
          #只接受INFO级别的日志，其余的全部拒绝处理
          ThresholdFilter:
            -
              level: INFO
            -
              level: WARN
              onMatch: DENY
              onMismatch: NEUTRAL
        Policies:
          SizebasedTriggeringPolicy:
            size: 512MB
      #处理WARN级别的日志，并把该日志放到logs/warn.log文件中
      -
        name: RollingFileWarn
        fileName: ./logs/warn.log
        filePattern: "logs/$${date:yyyy-MM}/warn-%d{yyyy-MM-dd}-%i.log.gz"
        PatternLayout:
          Pattern: "[%d{yyyy-MM-dd HH:mm:ss}] %-5level %class{36} %L %M - %msg%xEx%n"
        Filters:
          ThresholdFilter:
            -
              level: WARN
            -
              level: ERROR
              onMatch: DENY
              onMismatch: NEUTRAL
        Policies:
          SizebasedTriggeringPolicy:
            size: 512MB
      #处理error级别的日志，并把该日志放到logs/error.log文件中
      -
        name: RollingFileError
        fileName: ./logs/error.log
        filePattern: "logs/$${date:yyyy-MM}/error-%d{yyyy-MM-dd}-%i.log.gz"
        PatternLayout:
          Pattern: "[%d{yyyy-MM-dd HH:mm:ss}] %-5level %class{36} %L %M - %msg%xEx%n"
        ThresholdFilter:
          level: ERROR
        Policies:
          SizebasedTriggeringPolicy:
            size: 512MB
      #druid的日志记录追加器
      -
        name: druidSqlRollingFile
        fileName: ./logs/druid-sql.log
        filePattern: "logs/$${date:yyyy-MM}/api-%d{yyyy-MM-dd}-%i.log.gz"
        PatternLayout:
          Pattern: "[%d{yyyy-MM-dd HH:mm:ss}] %-5level %L %M - %msg%xEx%n"
        Policies:
          SizebasedTriggeringPolicy:
            size: 512MB
  loggers:
    logger:
      #记录druid-sql的记录
      name: druid.sql.Statement
      level: debug
      additivity: false
      appender-ref:
        ref: druidSqlRollingFile
    #log4j2 自带过滤日志
    Logger:
      -
        name: org.apache.catalina.startup.DigesterFactory
        level: error
      -
        name: org.apache.catalina.util.Lifecyclebase
        level: error
      -
        name: org.apache.coyote.http11.Http11NioProtocol
        level: warn
      -
        name: org.apache.sshd.common.util.SecurityUtils
        level: warn
      -
        name: org.apache.tomcat.util.net.NioSelectorPool
        level: warn
      -
        name: org.crsh.plugin
        level: warn
      -
        name: org.crsh.ssh
        level: warn
      -
        name: org.eclipse.jetty.util.component.AbstractLifeCycle
        level: error
      -
        name: org.hibernate.validator.internal.util.Version
        level: warn
      -
        name: org.springframework.boot.actuate.autoconfigure.CrshAutoConfiguration
        level: warn
      -
        name: org.springframework.boot.actuate.endpoint.jmx
        level: warn
      -
        name: org.thymeleaf
        level: warn
    root:
      level: DEBUG
      appender-ref:
        -
          ref: Console
        -
          ref: RollingFileInfo
        -
          ref: RollingFileWarn
        -
          ref: RollingFileError
        -
          ref: RollingFileDebug

在controller输出日志内容

    Logger logger = LogManager.getLogger(LogManager.ROOT_LOGGER_NAME);
    @RequestMapping("/b")
    public String simple(){
        try {
            userService.selectAll();
            logger.info("success");
            return "success";
        }catch (Exception e1){
            e1.printStackTrace();
            return "失败";
        }

控制台输出

在当前项目目录下查找logs文件夹