SpringBoot 는 사용자 정의 로그 프레임 워 크 를 사용 합 니 다. 로그 저장 방식 은 json 로그 형식 입 니 다.

먼저 SpringBoot 는 자신의 로그 프레임 워 크 인 기본 로그 Logback 을 실 현 했 습 니 다. 예 를 들 어 logging. path = xx, logging. level. root = xx 등 SpringBoot 설정 파일 에 직접 설정 할 수 있 습 니 다. 시작 항목 은 해당 로그 파일 을 자동 으로 생 성하 고 기록 할 수 있 지만 json 형식의 로그 저장 을 실현 할 수 없 기 때문에 수 요 를 만족 시 키 기 위해 서 입 니 다.사용자 정의 로 그 를 선택 하고 설정 할 수 있 습 니 다.
SpringBoot 는 1.4 이상 버 전부터 log 4 로 그 를 지원 하지 않 고 log4j 2 로 그 를 사용 하기 시 작 했 습 니 다. 사용자 정의 로그 프레임 워 크 를 사용 하려 면 SpringBoot 가 기본적으로 사용 하 는 로 그 를 제외 하고 log4j 2 가 json 로그 형식 을 지원 하 는 지 알려 야 합 니 다.
log4j 2. x 버 전 은 1. x 의. properties 접미사 와 같은 파일 설정 방식 을 지원 하지 않 습 니 다. 2. x 버 전 프로필 접미사 이름 은 'xml', '. json' 또는 '. jsn' 만 지원 합 니 다.

<dependency>
   <groupId>org.springframework.bootgroupId>
   <artifactId>spring-boot-starter-webartifactId>
   <exclusions>
      <exclusion>
         <groupId>org.springframework.bootgroupId>
         <artifactId>spring-boot-starter-loggingartifactId>
      exclusion>
   exclusions>
dependency>

로그 4j 2 의존 도입

<dependency>
   <groupId>org.springframework.bootgroupId>
   <artifactId>spring-boot-starter-log4j2artifactId>
   <version>1.5.8.RELEASEversion>
dependency>



      .reporting.outputEncoding>UTF-8.reporting.outputEncoding>
      .version>1.8.version>
      .level>debug.level>
      .root.path>/data/springcloud/logs/xx/config/config.root.path>
      .error.path>/data/springcloud/logs/xx/config/config.error.path>


    
    <dependency>
      <groupId>com.fasterxml.jackson.coregroupId>
      <artifactId>jackson-coreartifactId>

    dependency>
    <dependency>
      <groupId>com.fasterxml.jackson.coregroupId>
      <artifactId>jackson-databindartifactId>

    dependency>

 <sourceDirectory>src/main/javasourceDirectory>
    <resources>
      <resource>
        <directory>src/main/resourcesdirectory>
        <filtering>truefiltering>
        <includes>
          <include>**/*include>
        includes>
      resource>
    resources>

필요 한 플러그 인 추가

 <plugin>
          <artifactId>maven-resources-pluginartifactId>
          <configuration>
            <encoding>utf-8encoding>
            <useDefaultDelimiters>trueuseDefaultDelimiters>
          configuration>
        plugin>

  <plugin>
            <groupId>org.springframework.bootgroupId>
            <artifactId>spring-boot-maven-pluginartifactId>
  plugin>

SpringBoot 프로필 지정 log4j. xml
logging.config=classpath:log4j2.xml
log4j 2. xml 설정: log4j 2 는 레이아웃 방식 이 많 습 니 다. 그 중에서 JosnLayout 는 기록 방식 이 json 방식 임 을 표시 합 니 다.


<configuration status="WARN">

    
    <Properties>
        <Property name="pattern">%d{yyyy-MM-dd HH:mm:ss,SSS} %5p %c{1}:%l - %m%nProperty>
    Properties>


    <Loggers>
        <Root level="DEBUG">
            <AppenderRef ref="console">AppenderRef>
            <AppenderRef ref="rolling_file">AppenderRef>
        Root>
        
       
    Loggers>

    <Appenders>
        <Console name="console" target="SYSTEM_OUT" follow="true">
            
            <ThresholdFilter level="INFO" onMatch="ACCEPT" onMismatch="DENY"/>


             


            



        Console>
        
        <RollingFile name="rolling_file"
                     fileName="${log4j2.root.path}.log"
                     filePattern="${log4j2.root.path}_%d{yyyy-MM-dd}.log">
            <JsonLayout/>
            <ThresholdFilter level="error" onMatch="ACCEPT" onMismatch="DENY"/>

           


            <Policies>
                <TimeBasedTriggeringPolicy/>
                <SizeBasedTriggeringPolicy size="100 MB"/>
            Policies>


        RollingFile>

        <File name="file" fileName="${log4j2.package.path}.log">
            
            <ThresholdFilter level="DEBUG" onMatch="ACCEPT" onMismatch="DENY"/>
           
            <PatternLayout pattern="%d{HH:mm:ss.SSS} [%t] %-5level %logger{36} - %msg%n"/>
        File>

    Appenders>

configuration>

다음 오류 가 발생 하면 SpringBoot 가 가지 고 있 는 로그 패 키 지 를 깨끗 한 해결 방법 으로 제거 하 는 것 을 설명 합 니 다.


<dependency>
            <groupId>org.springframework.bootgroupId>
            <artifactId>spring-boot-starterartifactId>
            <exclusions>
                <exclusion>
                    <groupId>org.springframework.bootgroupId>
                    <artifactId>spring-boot-starter-loggingartifactId>
                exclusion>
            exclusions>
        dependency>


      SLF4J: Class path contains multiple SLF4J bindings.
SLF4J: Found binding in [jar:file:/D:/repository/ch/qos/logback/logback-classic/1.1.11/logback-classic-1.1.11.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in [jar:file:/D:/repository/org/apache/logging/log4j/log4j-slf4j-impl/2.7/log4j-slf4j-impl-2.7.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation.
SLF4J: Actual binding is of type [ch.qos.logback.classic.util.ContextSelectorStaticBinder]
2018-08-29 14:20:29.261  INFO 13472 --- [           main] s.c.a.AnnotationConfigApplicationContext : Refreshing org.springframework.context.annotation.AnnotationConfigApplicationContext@59474f18: startup date [Wed Aug 29 14:20:29 CST 2018]; root of context hierarchy
2018-08-29 14:20:29.614  INFO 13472 --- [           main] f.a.AutowiredAnnotationBeanPostProcessor : JSR-330 'javax.inject.Inject' annotation found and supported for autowiring
2018-08-29 14:20:29.662  INFO 13472 --- [           main] trationDelegate$BeanPostProcessorChecker : Bean 'configurationPropertiesRebinderAutoConfiguration' of type [org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration$$EnhancerBySpringCGLIB$$738c003a] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
Logging system failed to initialize using configuration from 'classpath:log4j2.xml'
java.lang.IllegalStateException: Logback configuration error detected: 
ERROR in ch.qos.logback.core.joran.spi.Interpreter@5:17 - no applicable action for [Properties], current ElementPath  is [[configuration][Properties]]
ERROR in ch.qos.logback.core.joran.spi.Interpreter@7:34 - no applicable action for [Property], current ElementPath  is [[configuration][Properties][Property]]
ERROR in ch.qos.logback.core.joran.spi.Interpreter@12:14 - no applicable action for [Loggers], current ElementPath  is [[configuration][Loggers]]
ERROR in ch.qos.logback.core.joran.spi.Interpreter@13:29 - no applicable action for [Root], current ElementPath  is [[configuration][Loggers][Root]]
ERROR in ch.qos.logback.core.joran.spi.Interpreter@14:40 - no applicable action for [AppenderRef], current ElementPath  is [[configuration][Loggers][Root][AppenderRef]]
ERROR in ch.qos.logback.core.joran.spi.Interpreter@16:37 - no applicable action for [AppenderRef], current ElementPath  is [[configuration][Loggers][Root][AppenderRef]]
ERROR in ch.qos.logback.core.joran.spi.Interpreter@24:16 - no applicable action for [Appenders], current ElementPath  is [[configuration][Appenders]]
ERROR in ch.qos.logback.core.joran.spi.Interpreter@25:67 - no applicable action for [Console], current ElementPath  is [[configuration][Appenders][Console]]
ERROR in ch.qos.logback.core.joran.spi.Interpreter@27:79 - no applicable action for [ThresholdFilter], current ElementPath  is [[configuration][Appenders][Console][ThresholdFilter]]
ERROR in ch.qos.logback.core.joran.spi.Interpreter@57:114 - no applicable action for [File], current ElementPath  is [[configuration][Appenders][File]]
ERROR in ch.qos.logback.core.joran.spi.Interpreter@59:80 - no applicable action for [ThresholdFilter], current ElementPath  is [[configuration][Appenders][File][ThresholdFilter]]
ERROR in ch.qos.logback.core.joran.spi.Interpreter@69:61 - no applicable action for [JsonLayout], current ElementPath  is [[configuration][Appenders][File][JsonLayout]]
    at org.springframework.boot.logging.logback.LogbackLoggingSystem.loadConfiguration(LogbackLoggingSystem.java:162)
    at org.springframework.boot.logging.AbstractLoggingSystem.initializeWithSpecificConfig(AbstractLoggingSystem.java:66)
    at org.springframework.boot.logging.AbstractLoggingSystem.initialize(AbstractLoggingSystem.java:56)
    at org.springframework.boot.logging.logback.LogbackLoggingSystem.initialize(LogbackLoggingSystem.java:115)
    at org.springframework.boot.logging.LoggingApplicationListener.initializeSystem(LoggingApplicationListener.java:308)
    at org.springframework.boot.logging.LoggingApplicationListener.initialize(LoggingApplicationListener.java:276)
    at org.springframework.boot.logging.LoggingApplicationListener.onApplicationEnvironmentPreparedEvent(LoggingApplicationListener.java:239)
    at org.springframework.boot.logging.LoggingApplicationListener.onApplicationEvent(LoggingApplicationListener.java:212)
    at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:167)
    at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:139)
    at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:122)
    at org.springframework.boot.context.event.EventPublishingRunListener.environmentPrepared(EventPublishingRunListener.java:74)
    at org.springframework.boot.SpringApplicationRunListeners.environmentPrepared(SpringApplicationRunListeners.java:54)
    at org.springframework.boot.SpringApplication.prepareEnvironment(SpringApplication.java:325)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:296)
    at com.yiche.UserApplication2.main(UserApplication2.java:34)
Exception in thread "main" java.lang.IllegalStateException: java.lang.IllegalStateException: Logback configuration error detected: 
ERROR in ch.qos.logback.core.joran.spi.Interpreter@5:17 - no applicable action for [Properties], current ElementPath  is [[configuration][Properties]]
ERROR in ch.qos.logback.core.joran.spi.Interpreter@7:34 - no applicable action for [Property], current ElementPath  is [[configuration][Properties][Property]]
ERROR in ch.qos.logback.core.joran.spi.Interpreter@12:14 - no applicable action for [Loggers], current ElementPath  is [[configuration][Loggers]]
ERROR in ch.qos.logback.core.joran.spi.Interpreter@13:29 - no applicable action for [Root], current ElementPath  is [[configuration][Loggers][Root]]
ERROR in ch.qos.logback.core.joran.spi.Interpreter@14:40 - no applicable action for [AppenderRef], current ElementPath  is [[configuration][Loggers][Root][AppenderRef]]
ERROR in ch.qos.logback.core.joran.spi.Interpreter@16:37 - no applicable action for [AppenderRef], current ElementPath  is [[configuration][Loggers][Root][AppenderRef]]
ERROR in ch.qos.logback.core.joran.spi.Interpreter@24:16 - no applicable action for [Appenders], current ElementPath  is [[configuration][Appenders]]
ERROR in ch.qos.logback.core.joran.spi.Interpreter@25:67 - no applicable action for [Console], current ElementPath  is [[configuration][Appenders][Console]]
ERROR in ch.qos.logback.core.joran.spi.Interpreter@27:79 - no applicable action for [ThresholdFilter], current ElementPath  is [[configuration][Appenders][Console][ThresholdFilter]]
ERROR in ch.qos.logback.core.joran.spi.Interpreter@57:114 - no applicable action for [File], current ElementPath  is [[configuration][Appenders][File]]
ERROR in ch.qos.logback.core.joran.spi.Interpreter@59:80 - no applicable action for [ThresholdFilter], current ElementPath  is [[configuration][Appenders][File][ThresholdFilter]]
ERROR in ch.qos.logback.core.joran.spi.Interpreter@69:61 - no applicable action for [JsonLayout], current ElementPath  is [[configuration][Appenders][File][JsonLayout]]
    at org.springframework.boot.logging.LoggingApplicationListener.initializeSystem(LoggingApplicationListener.java:315)
    at org.springframework.boot.logging.LoggingApplicationListener.initialize(LoggingApplicationListener.java:276)
    at org.springframework.boot.logging.LoggingApplicationListener.onApplicationEnvironmentPreparedEvent(LoggingApplicationListener.java:239)
    at org.springframework.boot.logging.LoggingApplicationListener.onApplicationEvent(LoggingApplicationListener.java:212)
    at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:167)
    at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:139)
    at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:122)
    at org.springframework.boot.context.event.EventPublishingRunListener.environmentPrepared(EventPublishingRunListener.java:74)
    at org.springframework.boot.SpringApplicationRunListeners.environmentPrepared(SpringApplicationRunListeners.java:54)
    at org.springframework.boot.SpringApplication.prepareEnvironment(SpringApplication.java:325)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:296)
    at com.yiche.UserApplication2.main(UserApplication2.java:34)
Caused by: java.lang.IllegalStateException: Logback configuration error detected: 
ERROR in ch.qos.logback.core.joran.spi.Interpreter@5:17 - no applicable action for [Properties], current ElementPath  is [[configuration][Properties]]
ERROR in ch.qos.logback.core.joran.spi.Interpreter@7:34 - no applicable action for [Property], current ElementPath  is [[configuration][Properties][Property]]
ERROR in ch.qos.logback.core.joran.spi.Interpreter@12:14 - no applicable action for [Loggers], current ElementPath  is [[configuration][Loggers]]
ERROR in ch.qos.logback.core.joran.spi.Interpreter@13:29 - no applicable action for [Root], current ElementPath  is [[configuration][Loggers][Root]]
ERROR in ch.qos.logback.core.joran.spi.Interpreter@14:40 - no applicable action for [AppenderRef], current ElementPath  is [[configuration][Loggers][Root][AppenderRef]]
ERROR in ch.qos.logback.core.joran.spi.Interpreter@16:37 - no applicable action for [AppenderRef], current ElementPath  is [[configuration][Loggers][Root][AppenderRef]]
ERROR in ch.qos.logback.core.joran.spi.Interpreter@24:16 - no applicable action for [Appenders], current ElementPath  is [[configuration][Appenders]]
ERROR in ch.qos.logback.core.joran.spi.Interpreter@25:67 - no applicable action for [Console], current ElementPath  is [[configuration][Appenders][Console]]
ERROR in ch.qos.logback.core.joran.spi.Interpreter@27:79 - no applicable action for [ThresholdFilter], current ElementPath  is [[configuration][Appenders][Console][ThresholdFilter]]
ERROR in ch.qos.logback.core.joran.spi.Interpreter@57:114 - no applicable action for [File], current ElementPath  is [[configuration][Appenders][File]]
ERROR in ch.qos.logback.core.joran.spi.Interpreter@59:80 - no applicable action for [ThresholdFilter], current ElementPath  is [[configuration][Appenders][File][ThresholdFilter]]
ERROR in ch.qos.logback.core.joran.spi.Interpreter@69:61 - no applicable action for [JsonLayout], current ElementPath  is [[configuration][Appenders][File][JsonLayout]]
    at org.springframework.boot.logging.logback.LogbackLoggingSystem.loadConfiguration(LogbackLoggingSystem.java:162)
    at org.springframework.boot.logging.AbstractLoggingSystem.initializeWithSpecificConfig(AbstractLoggingSystem.java:66)
    at org.springframework.boot.logging.AbstractLoggingSystem.initialize(AbstractLoggingSystem.java:56)
    at org.springframework.boot.logging.logback.LogbackLoggingSystem.initialize(LogbackLoggingSystem.java:115)
    at org.springframework.boot.logging.LoggingApplicationListener.initializeSystem(LoggingApplicationListener.java:308)
    ... 11 more

Process finished with exit code 1

참고:https://www.cnblogs.com/baizhanshi/p/7503417.html
https://blog.csdn.net/rogger_chen/article/details/50587920
https://blog.csdn.net/zhou_kapenter/article/details/64123933
https://blog.csdn.net/yangzhuangqiu/article/details/49636661
http://book.51cto.com/art/201512/499576.htm
https://blog.csdn.net/wendingzhulu/article/details/52423522
SpringBoot 사용자 정의 log4j 2 로그https://www.cnblogs.com/advancing/p/7922463.html
log4j 2 로그 의 레이아웃 과 APIhttp://logging.apache.org/log4j/log4j-2.2/manual/layouts.html http://logging.apache.org/log4j/2.x/manual/layouts.html#JSONLayout

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SpringBoot 는 사용자 정의 로그 프레임 워 크 를 사용 합 니 다. 로그 저장 방식 은 json 로그 형식 입 니 다.

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