tomcat启动窗口报错log4j:ERROR Could not find value for key log4j.appender.stdoutlog4j:ERROR Could not instantiate appender named "stdout".解决办法:原来是log4j.properties少了一行应该是:log4j.appender.stdout=org.apache.log4j.ConsoleAppenderlog4j.appender.stdout.layou…
用Intellij IDEA 部署Web项目,Tomcat启动后报错Unknown version string [3.1]. Default version will be used. 作者的问题出在引用jar包缺失,解决问题如下图,进入项目ProjectStructure,配置Artifacts中的war exploded,将output Layout选项卡下右边的框架库,引用到左边的output中.…
java.lang.IllegalStateException: BeanFactory not initialized or already closed - call 'refresh' before accessing beans via the ApplicationContext at org.springframework.context.support.AbstractRefreshableApplicationContext.getBeanFactory(AbstractRefr…