idea springboot启动报SLF4J:Failed to load class “org.slf4j.impl.StaticLoggerBinder”「建议收藏」

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首先声明一下，我用的 Intellij IDEA 2018.3 版本的，springboot的版本是 2.0.5.RELEASE  版本。

当我喜滋滋的编写完测试代码，点击 Debug 的时候，睁大眼睛看控制台简直是看得一脸懵逼，控制台显示如下：

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.

  .   ____          _            __ _ _
 /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::        (v2.0.5.RELEASE)

十二月 13, 2018 4:48:04 下午 org.apache.catalina.core.StandardService startInternal
信息: Starting service [Tomcat]
十二月 13, 2018 4:48:04 下午 org.apache.catalina.core.StandardEngine startInternal
信息: Starting Servlet Engine: Apache Tomcat/8.5.34
十二月 13, 2018 4:48:04 下午 org.apache.catalina.core.AprLifecycleListener lifecycleEvent
信息: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: [D:\Program Files\java\jdk1.8\bin;C:\WINDOWS\Sun\Java\bin;C:\WINDOWS\system32;C:\WINDOWS;C:\ProgramData\Oracle\Java\javapath;C:\Program Files (x86)\Common Files\NetSarang;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\WINDOWS\System32\WindowsPowerShell\v1.0\;C:\Program Files (x86)\ATI Technologies\ATI.ACE\Core-Static;D:\Program Files\java\jdk1.7\bin;D:\Program Files\mysql-5.7.17\bin;C:\WINDOWS\System32\OpenSSH\;D:\Program Files\Git\cmd;D:\Program Files\TortoiseSVN\bin;C:\Users\Administrator\AppData\Local\Microsoft\WindowsApps;;.]
十二月 13, 2018 4:48:05 下午 org.apache.catalina.core.ApplicationContext log
信息: Initializing Spring embedded WebApplicationContext

没错，就是这么点日志，但是注意 第一行  SLF4J: Failed to load class “org.slf4j.impl.StaticLoggerBinder”.

然后去 http://www.slf4j.org/codes.html#StaticLoggerBinder  地址看了下解决方法，这里我就不详细说了，反正大概意思就加上slf4j-nop.jar slf4j-simple.jar， slf4j-log4j12.jar，slf4j-jdk14.jar或 logback-classic.jar中的其中一个jar包就行（只能是一个，多了就会有冲突）。

于是乎我加了 slf4j-simple  jar包代码如下：（这段代码是我直接从线上maven库中copy出来的，肯定不会有错）

<dependency>
    <groupId>org.slf4j</groupId>
    <artifactId>slf4j-simple</artifactId>
    <version>1.7.25</version>
    <scope>test</scope>
  </dependency>

引入依赖后，启动还是报错，一模一样，这TM就有点过分了，官网的解决方法一般是不会出错的，而且之前我也百度过，也是差不多一样的做法，那到底是什么问题呢？

于是又是一顿找，看看前辈们有没有碰到过类似的错误，终于有所发现，最终修改代码如下：

<dependency>
    <groupId>org.slf4j</groupId>
    <artifactId>slf4j-simple</artifactId>
    <version>1.7.25</version>
    <scope>compile</scope>
  </dependency>

没错，就是毁在这段代码上 <scope>test</scope> ，test表示只有在测试环境下，才可以使用，而我springboot是运行在main方法中，是不属于测试环境，所以这个包就相当于没有加入依赖，也就没有被加载到。改成compile则表示编译的时候就会加载此jar包，那么最后就运行成功了，成功的日志如下：

"D:\Program Files\java\jdk1.8\bin\java.exe" -agentlib:jdwp=transport=dt_socket,address=127.0.0.1:51555,suspend=y,server=n -javaagent:C:\Users\Administrator\.IntelliJIdea2018.3\system\captureAgent\debugger-agent.jar -Dfile.encoding=UTF-8 -classpath "D:\Program Files\java\jdk1.8\jre\lib\charsets.jar;D:\Program Files\java\jdk1.8\jre\lib\deploy.jar;D:\Program Files\java\jdk1.8\jre\lib\ext\access-bridge-64.jar;D:\Program Files\java\jdk1.8\jre\lib\ext\cldrdata.jar;D:\Program Files\java\jdk1.8\jre\lib\ext\dnsns.jar;D:\Program Files\java\jdk1.8\jre\lib\ext\jaccess.jar;D:\Program Files\java\jdk1.8\jre\lib\ext\jfxrt.jar;D:\Program Files\java\jdk1.8\jre\lib\ext\localedata.jar;D:\Program Files\java\jdk1.8\jre\lib\ext\nashorn.jar;D:\Program Files\java\jdk1.8\jre\lib\ext\sunec.jar;D:\Program Files\java\jdk1.8\jre\lib\ext\sunjce_provider.jar;D:\Program Files\java\jdk1.8\jre\lib\ext\sunmscapi.jar;D:\Program Files\java\jdk1.8\jre\lib\ext\sunpkcs11.jar;D:\Program Files\java\jdk1.8\jre\lib\ext\zipfs.jar;D:\Program Files\java\jdk1.8\jre\lib\javaws.jar;D:\Program Files\java\jdk1.8\jre\lib\jce.jar;D:\Program Files\java\jdk1.8\jre\lib\jfr.jar;D:\Program Files\java\jdk1.8\jre\lib\jfxswt.jar;D:\Program Files\java\jdk1.8\jre\lib\jsse.jar;D:\Program Files\java\jdk1.8\jre\lib\management-agent.jar;D:\Program Files\java\jdk1.8\jre\lib\plugin.jar;D:\Program Files\java\jdk1.8\jre\lib\resources.jar;D:\Program Files\java\jdk1.8\jre\lib\rt.jar;E:\IdeaProjects\miaosha\target\classes;E:\repository\org\springframework\boot\spring-boot-starter-web\2.0.5.RELEASE\spring-boot-starter-web-2.0.5.RELEASE.jar;E:\repository\org\springframework\boot\spring-boot-starter\2.0.5.RELEASE\spring-boot-starter-2.0.5.RELEASE.jar;E:\repository\org\springframework\boot\spring-boot\2.0.5.RELEASE\spring-boot-2.0.5.RELEASE.jar;E:\repository\org\springframework\boot\spring-boot-autoconfigure\2.0.5.RELEASE\spring-boot-autoconfigure-2.0.5.RELEASE.jar;E:\repository\org\springframework\boot\spring-boot-starter-logging\2.0.5.RELEASE\spring-boot-starter-logging-2.0.5.RELEASE.jar;E:\repository\org\apache\logging\log4j\log4j-to-slf4j\2.10.0\log4j-to-slf4j-2.10.0.jar;E:\repository\org\apache\logging\log4j\log4j-api\2.10.0\log4j-api-2.10.0.jar;E:\repository\org\slf4j\jul-to-slf4j\1.7.25\jul-to-slf4j-1.7.25.jar;E:\repository\javax\annotation\javax.annotation-api\1.3.2\javax.annotation-api-1.3.2.jar;E:\repository\org\springframework\spring-core\5.0.9.RELEASE\spring-core-5.0.9.RELEASE.jar;E:\repository\org\springframework\spring-jcl\5.0.9.RELEASE\spring-jcl-5.0.9.RELEASE.jar;E:\repository\org\yaml\snakeyaml\1.19\snakeyaml-1.19.jar;E:\repository\org\springframework\boot\spring-boot-starter-json\2.0.5.RELEASE\spring-boot-starter-json-2.0.5.RELEASE.jar;E:\repository\com\fasterxml\jackson\core\jackson-databind\2.9.6\jackson-databind-2.9.6.jar;E:\repository\com\fasterxml\jackson\core\jackson-annotations\2.9.0\jackson-annotations-2.9.0.jar;E:\repository\com\fasterxml\jackson\core\jackson-core\2.9.6\jackson-core-2.9.6.jar;E:\repository\com\fasterxml\jackson\datatype\jackson-datatype-jdk8\2.9.6\jackson-datatype-jdk8-2.9.6.jar;E:\repository\com\fasterxml\jackson\datatype\jackson-datatype-jsr310\2.9.6\jackson-datatype-jsr310-2.9.6.jar;E:\repository\com\fasterxml\jackson\module\jackson-module-parameter-names\2.9.6\jackson-module-parameter-names-2.9.6.jar;E:\repository\org\springframework\boot\spring-boot-starter-tomcat\2.0.5.RELEASE\spring-boot-starter-tomcat-2.0.5.RELEASE.jar;E:\repository\org\apache\tomcat\embed\tomcat-embed-core\8.5.34\tomcat-embed-core-8.5.34.jar;E:\repository\org\apache\tomcat\embed\tomcat-embed-el\8.5.34\tomcat-embed-el-8.5.34.jar;E:\repository\org\apache\tomcat\embed\tomcat-embed-websocket\8.5.34\tomcat-embed-websocket-8.5.34.jar;E:\repository\org\hibernate\validator\hibernate-validator\6.0.12.Final\hibernate-validator-6.0.12.Final.jar;E:\repository\javax\validation\validation-api\2.0.1.Final\validation-api-2.0.1.Final.jar;E:\repository\org\jboss\logging\jboss-logging\3.3.2.Final\jboss-logging-3.3.2.Final.jar;E:\repository\com\fasterxml\classmate\1.3.4\classmate-1.3.4.jar;E:\repository\org\springframework\spring-web\5.0.9.RELEASE\spring-web-5.0.9.RELEASE.jar;E:\repository\org\springframework\spring-beans\5.0.9.RELEASE\spring-beans-5.0.9.RELEASE.jar;E:\repository\org\springframework\spring-webmvc\5.0.9.RELEASE\spring-webmvc-5.0.9.RELEASE.jar;E:\repository\org\springframework\spring-aop\5.0.9.RELEASE\spring-aop-5.0.9.RELEASE.jar;E:\repository\org\springframework\spring-context\5.0.9.RELEASE\spring-context-5.0.9.RELEASE.jar;E:\repository\org\springframework\spring-expression\5.0.9.RELEASE\spring-expression-5.0.9.RELEASE.jar;E:\repository\org\slf4j\slf4j-simple\1.7.25\slf4j-simple-1.7.25.jar;E:\repository\org\slf4j\slf4j-api\1.7.25\slf4j-api-1.7.25.jar;D:\Program Files\IntelliJ IDEA 2018.3\lib\idea_rt.jar" cn.com.miaosha.App
Connected to the target VM, address: '127.0.0.1:51555', transport: 'socket'
Hello World!
[background-preinit] INFO org.hibernate.validator.internal.util.Version - HV000001: Hibernate Validator 6.0.12.Final
.   ____          _            __ _ _
/\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
\\/  ___)| |_)| | | | | || (_| |  ) ) ) )
'  |____| .__|_| |_|_| |_\__, | / / / /
=========|_|==============|___/=/_/_/_/
:: Spring Boot ::        (v2.0.5.RELEASE)
[main] INFO cn.com.miaosha.App - Starting App on SC-201806131812 with PID 13188 (E:\IdeaProjects\miaosha\target\classes started by Administrator in E:\IdeaProjects\miaosha)
[main] INFO cn.com.miaosha.App - No active profile set, falling back to default profiles: default
[main] INFO org.springframework.boot.web.servlet.context.AnnotationConfigServletWebServerApplicationContext - Refreshing org.springframework.boot.web.servlet.context.AnnotationConfigServletWebServerApplicationContext@36b4fe2a: startup date [Thu Dec 13 17:07:55 CST 2018]; root of context hierarchy
[main] INFO org.springframework.boot.web.embedded.tomcat.TomcatWebServer - Tomcat initialized with port(s): 8080 (http)
十二月 13, 2018 5:08:02 下午 org.apache.catalina.core.StandardService startInternal
信息: Starting service [Tomcat]
十二月 13, 2018 5:08:02 下午 org.apache.catalina.core.StandardEngine startInternal
信息: Starting Servlet Engine: Apache Tomcat/8.5.34
十二月 13, 2018 5:08:02 下午 org.apache.catalina.core.AprLifecycleListener lifecycleEvent
信息: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: [D:\Program Files\java\jdk1.8\bin;C:\WINDOWS\Sun\Java\bin;C:\WINDOWS\system32;C:\WINDOWS;C:\ProgramData\Oracle\Java\javapath;C:\Program Files (x86)\Common Files\NetSarang;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\WINDOWS\System32\WindowsPowerShell\v1.0\;C:\Program Files (x86)\ATI Technologies\ATI.ACE\Core-Static;D:\Program Files\java\jdk1.7\bin;D:\Program Files\mysql-5.7.17\bin;C:\WINDOWS\System32\OpenSSH\;D:\Program Files\Git\cmd;D:\Program Files\TortoiseSVN\bin;C:\Users\Administrator\AppData\Local\Microsoft\WindowsApps;;.]
十二月 13, 2018 5:08:02 下午 org.apache.catalina.core.ApplicationContext log
信息: Initializing Spring embedded WebApplicationContext
[localhost-startStop-1] INFO org.springframework.web.context.ContextLoader - Root WebApplicationContext: initialization completed in 7244 ms
[localhost-startStop-1] INFO org.springframework.boot.web.servlet.ServletRegistrationBean - Servlet dispatcherServlet mapped to [/]
[localhost-startStop-1] INFO org.springframework.boot.web.servlet.FilterRegistrationBean - Mapping filter: 'characterEncodingFilter' to: [/*]
[localhost-startStop-1] INFO org.springframework.boot.web.servlet.FilterRegistrationBean - Mapping filter: 'hiddenHttpMethodFilter' to: [/*]
[localhost-startStop-1] INFO org.springframework.boot.web.servlet.FilterRegistrationBean - Mapping filter: 'httpPutFormContentFilter' to: [/*]
[localhost-startStop-1] INFO org.springframework.boot.web.servlet.FilterRegistrationBean - Mapping filter: 'requestContextFilter' to: [/*]
[main] INFO org.springframework.web.servlet.handler.SimpleUrlHandlerMapping - Mapped URL path [/**/favicon.ico] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
[main] INFO org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter - Looking for @ControllerAdvice: org.springframework.boot.web.servlet.context.AnnotationConfigServletWebServerApplicationContext@36b4fe2a: startup date [Thu Dec 13 17:07:55 CST 2018]; root of context hierarchy
[main] INFO org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping - Mapped "{[/]}" onto public java.lang.String cn.com.miaosha.App.home(javax.servlet.http.HttpServletRequest)
[main] INFO org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping - Mapped "{[/error]}" onto public org.springframework.http.ResponseEntity<java.util.Map<java.lang.String, java.lang.Object>> org.springframework.boot.autoconfigure.web.servlet.error.BasicErrorController.error(javax.servlet.http.HttpServletRequest)
[main] INFO org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping - Mapped "{[/error],produces=[text/html]}" onto public org.springframework.web.servlet.ModelAndView org.springframework.boot.autoconfigure.web.servlet.error.BasicErrorController.errorHtml(javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse)
[main] INFO org.springframework.web.servlet.handler.SimpleUrlHandlerMapping - Mapped URL path [/webjars/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
[main] INFO org.springframework.web.servlet.handler.SimpleUrlHandlerMapping - Mapped URL path [/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
[main] INFO org.springframework.jmx.export.annotation.AnnotationMBeanExporter - Registering beans for JMX exposure on startup
[main] INFO org.springframework.boot.web.embedded.tomcat.TomcatWebServer - Tomcat started on port(s): 8080 (http) with context path ''
[main] INFO cn.com.miaosha.App - Started App in 11.308 seconds (JVM running for 14.362)

这日志看上去就正常了。

当然这只是我的解决方法，也许是我的粗心大意吧！如果你也遇到了这种情况可以不妨一试吧。