springboot日志的实现方式(两种log4j2.properties和log4j2.yml)

悠悠 2023-10-01 17:24 6阅读 0赞

第一种：基于log4j2.properties

首先pom.xml中导入jar

然后在src/main/resources目录下新建log4j2.properties，该日志文件可以实现，每天新建一个日志文件，前一天的日志以前一天的日期为结尾

### \u8BBE\u7F6E###
    log4j.rootLogger = debug,stdout,D,E,I
     
    ### \u8F93\u51FA\u4FE1\u606F\u5230\u63A7\u5236\u62AC ###
    log4j.appender.stdout = org.apache.log4j.ConsoleAppender
    log4j.appender.stdout.encoding=utf-8
    log4j.appender.stdout.Target = System.out
    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
     
    log4j.appender.D = org.apache.log4j.DailyRollingFileAppender
    log4j.appender.D.File = D://logs/debug.log
    log4j.appender.file.DatePattern='.'yyyy-MM-dd
    log4j.appender.D.Append = true
    log4j.appender.D.Threshold = DEBUG
    log4j.appender.D.layout = org.apache.log4j.PatternLayout
    log4j.appender.D.layout.ConversionPattern =%d{
        yyyy-MM-dd HH:mm:ss,SSS} %5p %c{
        1}:%L - %m%n
     
    log4j.appender.E = org.apache.log4j.DailyRollingFileAppender
    log4j.appender.E.File =D://logs/error.log
    log4j.appender.file.DatePattern='.'yyyy-MM-dd
    log4j.appender.E.Append = true
    log4j.appender.E.Threshold = ERROR
    log4j.appender.E.layout = org.apache.log4j.PatternLayout
    log4j.appender.E.layout.ConversionPattern = %d{
        yyyy-MM-dd HH:mm:ss,SSS} %5p %c{
        1}:%L - %m%n
     
    log4j.appender.I = org.apache.log4j.DailyRollingFileAppender
    log4j.appender.I.File =D://logs/info.log
    log4j.appender.file.DatePattern='.'yyyy-MM-dd
    log4j.appender.I.Append = true
    log4j.appender.I.Threshold = INFO
    log4j.appender.I.layout = org.apache.log4j.PatternLayout
    log4j.appender.I.layout.ConversionPattern = %d{
        yyyy-MM-dd HH:mm:ss,SSS} %5p %c{
        1}:%L - %m%n

第二种方式：基于log4j2.yml配置文件

首先pom.xml中导入jar

<dependency> 
    			<groupId>org.springframework.boot</groupId>
    			<artifactId>spring-boot-starter</artifactId>
    			<exclusions>
    				<exclusion>
    					<groupId>org.springframework.boot</groupId>
    					<artifactId>spring-boot-starter-logging</artifactId>
    				</exclusion>
    			</exclusions>
    		</dependency>
    		
    		
    		<dependency>
    			<groupId>org.springframework.boot</groupId>
    			<artifactId>spring-boot-starter-log4j2</artifactId>
    			<version>2.0.0.RELEASE</version>
    		</dependency>
     
    		
    		<dependency>
    			<groupId>com.fasterxml.jackson.dataformat</groupId>
    			<artifactId>jackson-dataformat-yaml</artifactId>
    		</dependency>

然后在src/main/resources目录下新建log4j2.yml文件

# 共有8个级别，按照从低到高为：ALL < TRACE < DEBUG < INFO < WARN < ERROR < FATAL < OFF。
    Configuration:  
      status: warn  
      monitorInterval: 30
      
      Properties: # 定义全局变量  
        Property: # 缺省配置（用于开发环境）。其他环境需要在VM参数中指定，如下：  
          #测试：-Dlog.level.console=warn -Dlog.level.xjj=trace  
          #生产：-Dlog.level.console=warn -Dlog.level.xjj=info        
          - name: log.level.console  
            value: debug  
          - name: log.sql.level  
            value: trace         
          - name: LOG_HOME  
            value: /bdmsweb-log/logs   
      Appenders:  
        Console:  #输出到控制台  
          name: CONSOLE  
          target: SYSTEM_OUT  
          ThresholdFilter:  
            level: ${
        sys:log.level.console} # “sys:”表示：如果VM参数中没指定这个变量值，则使用本文件中定义的缺省全局变量值  
            onMatch: ACCEPT  
            onMismatch: DENY  
          PatternLayout:  
            pattern: "%d{yyyy-MM-dd HH:mm:ss,SSS} %5p %c{1}:%L - %m%n"  
        RollingFile: # 输出到文件，超过128MB归档  
          - name: info    
            ignoreExceptions: false  
            fileName: ${
        LOG_HOME}/${
        date:yyyy-MM}/${
        date:yyyy-MM-dd}/info.log  
            filePattern: "${LOG_HOME}/${date:yyyy-MM}/info-%d{yyyy-MM-dd}-%i.log.gz"  
            ThresholdFilter:  
              level: info
              onMatch: ACCEPT  
              onMismatch: DENY 
            PatternLayout:  
              pattern: "%d{yyyy-MM-dd HH:mm:ss,SSS} %5p %c{1}:%L - %m%n"  
            Policies:  
              SizeBasedTriggeringPolicy:  
                size: "128 MB"  
            DefaultRolloverStrategy:  
              max: 1000  
          - name: debug   
            ignoreExceptions: false  
            fileName: ${
        LOG_HOME}/${
        date:yyyy-MM}/${
        date:yyyy-MM-dd}/debug.log  
            filePattern: "${LOG_HOME}/$${date:yyyy-MM}/debug-%d{yyyy-MM-dd}-%i.log.gz" 
            ThresholdFilter:  
              level: debug
              onMatch: ACCEPT  
              onMismatch: DENY  
            PatternLayout:  
              pattern: "%d{yyyy-MM-dd HH:mm:ss,SSS} %5p %c{1}:%L - %m%n"  
            Policies:  
              SizeBasedTriggeringPolicy:  
                size: "128 MB"  
            DefaultRolloverStrategy:  
              max: 1000  
          - name: error  
            ignoreExceptions: false  
            fileName: ${
        LOG_HOME}/${
        date:yyyy-MM}/${
        date:yyyy-MM-dd}/error.log  
            filePattern: "${LOG_HOME}/$${date:yyyy-MM}/error-%d{yyyy-MM-dd}-%i.log.gz"  
            ThresholdFilter:  
              level: error
              onMatch: ACCEPT  
              onMismatch: DENY
            PatternLayout:  
              pattern: "%d{yyyy-MM-dd HH:mm:ss,SSS} %5p %c{1}:%L - %m%n"  
            Policies:  
              SizeBasedTriggeringPolicy:  
                size: "128 MB"  
            DefaultRolloverStrategy:  
              max: 1000               
      Loggers:  
        Root:  
          level: info  
          AppenderRef:  
            - ref: CONSOLE
            - ref: info  
            - ref: debug  
            - ref: error  
        Logger: # 为com.xjj包配置特殊的Log级别，方便调试  
          - name: cnki.bdms.module.search.dal
            additivity: true  
            level: ${
        sys:log.sql.level}  
            AppenderRef:
              - ref: info    
              - ref: debug 
              - ref: error 
              - ref: CONSOLE

最后在application.yml中添加配置

logging:
      config: classpath:log4j2.yml

完成以上配置之后 运行项目，便可以在D盘/bdmsweb-log/logs 目录下看到以日期为区分的日志文件