SpringBoot配置 Log4j 和slf4j 警告

秒速五厘米 2021-09-23 08:16 367阅读 0赞

> log4j:WARN No appenders could be found for logger (org.springframework.web.context.support.StandardServletEnvironment).  
> log4j:WARN Please initialize the log4j system properly.  
> log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html\#noconfig for more info.

主要是没有找到配置文件，在 reources 目录下添加 log4j.properties 文件即可。

![20190925123613415.png][]

log4j.rootLogger=WARN, stdout,
    #log4j.rootLogger=INFO,stdout,file,R
    
    log4j.appender.stdout = org.apache.log4j.ConsoleAppender
    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} [%t] [%c] [%p] - %m%n
    
    
    log4j.appender.file = org.apache.log4j.FileAppender
    log4j.appender.file.File = ./logs/log-statics.log
    log4j.appender.file.layout=org.apache.log4j.PatternLayout
    log4j.appender.file.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss,SSS} [%t] [%c] [%p] - %m%n
    
    log4j.appender.R=org.apache.log4j.DailyRollingFileAppender
    log4j.appender.R.File=./logs/log-statics.log
    log4j.appender.R.layout=org.apache.log4j.PatternLayout
    log4j.appender.R.layout.ConversionPattern=%d-[TS] %p %t %c - %m%n

> SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".  
> SLF4J: Defaulting to no-operation (NOP) logger implementation  
> SLF4J: See http://www.slf4j.org/codes.html\#StaticLoggerBinder for further details.

添加slf4j-nop依赖。

<dependency>
                <groupId>org.slf4j</groupId>
                <artifactId>slf4j-nop</artifactId>
                <version>${slf4j.version}</version>
            </dependency>

[20190925123613415.png]: /images/20210923/cb44a5571bb840b584f985fa9671b04f.png