Tomcat 啟動和停止：java.lang.NoSuchMethodError: javax.servlet.ServletContext.getClassLoader()Ljava/lang/ClassLoader

Question

當我像“啟動 catalina”一樣從 cmd 啟動 tomcat 時，另一個 cmd 終端打開，然后出現下面給出的錯誤 ZC7AEE7B5ABC39FCAE26781 如何解決這個問題？

... SEVERE [localhost-startStop-1] org.apache.catalina.core.ContainerBase.addChildInternal ContainerBase.addChild: start:
 org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[]]
        at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:154)
        at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:725)
        at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:701)
        at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:714)
        at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1069)
        at org.apache.catalina.startup.HostConfig$DeployDirectory.run(HostConfig.java:1719)
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
        at java.util.concurrent.FutureTask.run(FutureTask.java:266)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.NoSuchMethodError: javax.servlet.ServletContext.getClassLoader()Ljava/lang/ClassLoader;
        at org.apache.tomcat.util.scan.StandardJarScanner.scan(StandardJarScanner.java:210)
        at org.apache.catalina.startup.ContextConfig.processJarsForWebFragments(ContextConfig.java:1855)
        at org.apache.catalina.startup.ContextConfig.webConfig(ContextConfig.java:1119)
        at org.apache.catalina.startup.ContextConfig.configureStart(ContextConfig.java:771)
        at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:305)
        at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:117)
        at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:90)
        at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5095)
        at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
        ... 10 more

Answer 1

java.lang.NoSucMethodError comes when Java code tries to call a method which is not existed on a class, this could be either static or non static method.

也許您的問題的解決方案就在這里

java.lang.NoSuchMethodError: javax.servlet.ServletContext.getContextPath()Ljava/lang/String

javax.servlet.ServletContext.getContextPath()Ljava/lang/String