Springboot 切换Log4j2日志

 SpringBoot的日志框架使用、日志框架切换【log4j2】

SpringBoot 整合 log4j2 使用yml的配置

目录

排除logging starter

配置log4j2.yaml

排除logging starter

从上图可以看到，需要从spring-boot-starter-web里面排除logging starter，并加入log4j2 starter

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</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>
        </dependency>
    </dependencies>

springboot会读取到log4j2-spring.xml的配置文件（spring推荐），如果是log4j2.yaml的配置文件，那么需要加入依赖

<!-- 加上这个才能辨认到log4j2.yml文件 -->
<dependency>
    <groupId>com.fasterxml.jackson.dataformat</groupId>
    <artifactId>jackson-dataformat-yaml</artifactId>
</dependency>

配置log4j2.yaml

 # 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.path
        value: ${user.home}/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: ${sys:log.path}/${date:yyyy-MM}/${date:yyyy-MM-dd}/info.log
        filePattern: "${sys:log.path}/${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: ${sys:log.path}/${date:yyyy-MM}/${date:yyyy-MM-dd}/debug.log
        filePattern: "${sys:log.path}/$${date:yyyy-MM}/debug-%d{yyyy-MM-dd}-%i.log.gz"
        ThresholdFilter:
          level: debug
          onMatch: ACCEPT
          onMismatch: DENY
        PatternLayout:
          pattern: "%d{yyyy-MM-dd HH:mm:ss,SSS} %5p %c{1}:%L - %m%n"
        Policies:
          SizeBasedTriggeringPolicy:
            size: "128 MB"
        DefaultRolloverStrategy:
          max: 1000
      - name: error
        ignoreExceptions: false
        fileName: ${sys:log.path}/${date:yyyy-MM}/${date:yyyy-MM-dd}/error.log
        filePattern: "${sys:log.path}/$${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

application.yaml指明log4j2.yaml位置

logging:
  config: classpath:log4j2.yaml