Question

启动tomcat之后会出现这个问题，不知道是不是log4j的问题

java.lang.IllegalStateException: Illegal access: this web application instance has been stopped already. Could not load [org.apache.log4j.DailyRollingFileAppender]. The following stack trace is thrown for debugging purposes as well as to attempt to terminate the thread which caused the illegal access.
at org.apache.catalina.loader.WebappClassLoaderBase.checkStateForResourceLoading(WebappClassLoaderBase.java:1327)
at org.apache.catalina.loader.WebappClassLoaderBase.checkStateForClassLoading(WebappClassLoaderBase.java:1313)
at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1196)
at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1157)
at org.apache.log4j.helpers.Loader.loadClass(Loader.java:173)
at org.apache.log4j.helpers.OptionConverter.instantiateByClassName(OptionConverter.java:319)
at org.apache.log4j.helpers.OptionConverter.instantiateByKey(OptionConverter.java:120)
at org.apache.log4j.PropertyConfigurator.parseAppender(PropertyConfigurator.java:629)
at org.apache.log4j.PropertyConfigurator.parseCategory(PropertyConfigurator.java:612)
at org.apache.log4j.PropertyConfigurator.parseCatsAndRenderers(PropertyConfigurator.java:533)
at org.apache.log4j.PropertyConfigurator.doConfigure(PropertyConfigurator.java:417)
at org.apache.log4j.PropertyConfigurator.doConfigure(PropertyConfigurator.java:316)
at org.apache.log4j.PropertyWatchdog.doOnChange(PropertyConfigurator.java:682)
at org.apache.log4j.helpers.FileWatchdog.checkAndConfigure(FileWatchdog.java:88)
at org.apache.log4j.helpers.FileWatchdog.run(FileWatchdog.java:107)

Answer 1

是log4j的DailyRollingFileAppender 节点下的问题。