springBoot启动报错log4j冲突
先上一段报错内容
SLF4J: Class path contains multiple SLF4J bindings.
SLF4J: Found binding in [jar:file:/D:/soft/apache-tomcat-8.5.31/webapps/ui/WEB-INF/lib/log4j-slf4j-impl-2.7.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in [jar:file:/D:/soft/apache-tomcat-8.5.31/webapps/ui/WEB-INF/lib/logback-classic-1.1.11.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in [jar:file:/D:/soft/apache-tomcat-8.5.31/webapps/ui/WEB-INF/lib/slf4j-log4j12-1.7.25.jar!/org/slf4j/impl/StaticLoggerBinder.class]
......
Caused by: java.lang.IllegalArgumentException: LoggerFactory is not a Logback LoggerContext but Logback is on the classpath. Either remove Logback or the competing implementation (class org.apache.logging.slf4j.Log4jLoggerFactory loaded from file:/D:/soft/apache-tomcat-8.5.31/webapps/ui/WEB-INF/lib/log4j-slf4j-impl-2.7.jar). If you are using WebLogic you will need to add 'org.slf4j' to prefer-application-packages in WEB-INF/weblogic.xml: org.apache.logging.slf4j.Log4jLoggerFactory
springBoot 本地报错,查了一番,是logback搞得鬼,打开pom依赖树,搜索logback,发现在spring-boot-starter-web下有间接依赖上logback-classisc,搜索大神们的解答,就是在有这个依赖的dependency中除去他就行了。
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< dependency >
< groupId >org.springframework.boot</ groupId >
< artifactId >spring-boot-starter-web</ artifactId >
< exclusions >
< exclusion >
< groupId >ch.qos.logback</ groupId >
< artifactId >logback-classic</ artifactId >
</ exclusion >
</ exclusions >
</ dependency >
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SpringBoot启用log4j日志
pom.xml
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<!--排除默认的日志 -->
< 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 >
<!--启用log4j日志 -->
< dependency >
< groupId >org.springframework.boot</ groupId >
< artifactId >spring-boot-starter-log4j</ artifactId >
< version >1.2.8.RELEASE</ version >
</ dependency >
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log4j.properties
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log4j.rootLogger=debug, ServerDailyRollingFile, stdout
log4j.appender.ServerDailyRollingFile=org.apache.log4j.DailyRollingFileAppender
log4j.appender.ServerDailyRollingFile.DatePattern= '.' yyyy-MM-dd
log4j.appender.ServerDailyRollingFile.File=C\: //logs/notify-subscription.log
log4j.appender.ServerDailyRollingFile.layout=org.apache.log4j.PatternLayout
log4j.appender.ServerDailyRollingFile.layout.ConversionPattern=%d - %m%n
log4j.appender.ServerDailyRollingFile.Append= true
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%d{yyyy-MM-dd HH\:mm\:ss} %p [%c] %m%n
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log4j.properties放在resources目录下,这个log4j是随便配的。
以上为个人经验,希望能给大家一个参考,也希望大家多多支持服务器之家。
原文链接:https://blog.csdn.net/ss300400a/article/details/81098137