为什么？ 我出现如下错误： WebappLoader[]: Deploy JAR /WEB-INF/lib/localedata.jar to D:\Projects\Event\Event\defaultroot\WEB-INF\lib\localedata.jarWebappLoader[]: Deploy JAR /WEB-INF/lib/log4j-1.2.8.jar to D:\Projects\Event\Event\defaultroot\WEB-INF\lib\log4j-1.2.8.jarWebappLoader[]: Deploy JAR /WEB-INF/lib/log4j-core.jar to D:\Projects\Event\Event\defaultroot\WEB-INF\lib\log4j-core.jarWebappLoader[]: Deploy JAR /WEB-INF/lib/mail.jar to D:\Projects\Event\Event\defaultroot\WEB-INF\lib\mail.jarWebappLoader[]: Deploy JAR /WEB-INF/lib/mm.mysql-2.0.14-bin.jar to D:\Projects\Event\Event\defaultroot\WEB-INF\lib\mm.mysql-2.0.14-bin.jarWebappLoader[]: Deploy JAR /WEB-INF/lib/nls_charset12.jar to D:\Projects\Event\Event\defaultroot\WEB-INF\lib\nls_charset12.jarWebappLoader[]: Deploy JAR /WEB-INF/lib/rt.jar to D:\Projects\Event\Event\defaultroot\WEB-INF\lib\rt.jarWebappLoader[]: Deploy JAR /WEB-INF/lib/sax.jar to D:\Projects\Event\Event\defaultroot\WEB-INF\lib\sax.jarWebappLoader[]: Deploy JAR /WEB-INF/lib/sunjce_provider.jar to D:\Projects\Event\Event\defaultroot\WEB-INF\lib\sunjce_provider.jarWebappLoader[]: Deploy JAR /WEB-INF/lib/sunrsasign.jar to D:\Projects\Event\Event\defaultroot\WEB-INF\lib\sunrsasign.jarWebappLoader[]: Deploy JAR /WEB-INF/lib/unittest.jar to D:\Projects\Event\Event\defaultroot\WEB-INF\lib\unittest.jarWebappLoader[]: Deploy JAR /WEB-INF/lib/xalan.jar to D:\Projects\Event\Event\defaultroot\WEB-INF\lib\xalan.jarWebappLoader[]: Deploy JAR /WEB-INF/lib/xerces.jar to D:\Projects\Event\Event\defaultroot\WEB-INF\lib\xerces.jarWebappLoader[]: Deploy JAR /WEB-INF/lib/xercesImpl.jar to D:\Projects\Event\Event\defaultroot\WEB-INF\lib\xercesImpl.jarWebappLoader[]: Deploy JAR /WEB-INF/lib/xsltc.jar to D:\Projects\Event\Event\defaultroot\WEB-INF\lib\xsltc.jarStandardManager[]: Seeding random number generator class java.security.SecureRandomStandardManager[]: Seeding of random number generator has been completedContextConfig[]: Added certificates -> request attribute ValveStandardWrapper[:default]: Loading container servlet defaultException during startup processingjava.lang.reflect.InvocationTargetException at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:324) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:243)Caused by: java.lang.NoClassDefFoundError: javax/servlet/http/HttpServlet at java.lang.ClassLoader.defineClass0(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:502) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:123) at java.net.URLClassLoader.defineClass(URLClassLoader.java:250) at java.net.URLClassLoader.access$100(URLClassLoader.java:54) at java.net.URLClassLoader$1.run(URLClassLoader.java:193) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:186) at java.lang.ClassLoader.loadClass(ClassLoader.java:299) at java.lang.ClassLoader.loadClass(ClassLoader.java:292) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:265) at java.lang.ClassLoader.loadClass(ClassLoader.java:255) at org.apache.catalina.loader.StandardClassLoader.loadClass(StandardClassLoader.java:1076) at org.apache.catalina.loader.StandardClassLoader.loadClass(StandardClassLoader.java:992) at org.apache.catalina.loader.StandardClassLoader.loadClass(StandardClassLoader.java:1076) at org.apache.catalina.loader.StandardClassLoader.loadClass(StandardClassLoader.java:992) at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1380) at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1243) at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:865) at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:808) at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:3266) at org.apache.catalina.core.StandardContext.start(StandardContext.java:3395) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1123) at org.apache.catalina.core.StandardHost.start(StandardHost.java:614) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1123) at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:343) at org.apache.catalina.core.StandardService.start(StandardService.java:388) at org.apache.catalina.core.StandardServer.start(StandardServer.java:506) at org.apache.catalina.startup.Catalina.start(Catalina.java:781) at org.apache.catalina.startup.Catalina.execute(Catalina.java:681) at org.apache.catalina.startup.Catalina.process(Catalina.java:179) ... 5 more
看来只能是classpath路径的问题
我出现如下错误：
WebappLoader[]: Deploy JAR /WEB-INF/lib/localedata.jar to D:\Projects\Event\Event\defaultroot\WEB-INF\lib\localedata.jarWebappLoader[]: Deploy JAR /WEB-INF/lib/log4j-1.2.8.jar to D:\Projects\Event\Event\defaultroot\WEB-INF\lib\log4j-1.2.8.jarWebappLoader[]: Deploy JAR /WEB-INF/lib/log4j-core.jar to D:\Projects\Event\Event\defaultroot\WEB-INF\lib\log4j-core.jarWebappLoader[]: Deploy JAR /WEB-INF/lib/mail.jar to D:\Projects\Event\Event\defaultroot\WEB-INF\lib\mail.jarWebappLoader[]: Deploy JAR /WEB-INF/lib/mm.mysql-2.0.14-bin.jar to D:\Projects\Event\Event\defaultroot\WEB-INF\lib\mm.mysql-2.0.14-bin.jarWebappLoader[]: Deploy JAR /WEB-INF/lib/nls_charset12.jar to D:\Projects\Event\Event\defaultroot\WEB-INF\lib\nls_charset12.jarWebappLoader[]: Deploy JAR /WEB-INF/lib/rt.jar to D:\Projects\Event\Event\defaultroot\WEB-INF\lib\rt.jarWebappLoader[]: Deploy JAR /WEB-INF/lib/sax.jar to D:\Projects\Event\Event\defaultroot\WEB-INF\lib\sax.jarWebappLoader[]: Deploy JAR /WEB-INF/lib/sunjce_provider.jar to D:\Projects\Event\Event\defaultroot\WEB-INF\lib\sunjce_provider.jarWebappLoader[]: Deploy JAR /WEB-INF/lib/sunrsasign.jar to D:\Projects\Event\Event\defaultroot\WEB-INF\lib\sunrsasign.jarWebappLoader[]: Deploy JAR /WEB-INF/lib/unittest.jar to D:\Projects\Event\Event\defaultroot\WEB-INF\lib\unittest.jarWebappLoader[]: Deploy JAR /WEB-INF/lib/xalan.jar to D:\Projects\Event\Event\defaultroot\WEB-INF\lib\xalan.jarWebappLoader[]: Deploy JAR /WEB-INF/lib/xerces.jar to D:\Projects\Event\Event\defaultroot\WEB-INF\lib\xerces.jarWebappLoader[]: Deploy JAR /WEB-INF/lib/xercesImpl.jar to D:\Projects\Event\Event\defaultroot\WEB-INF\lib\xercesImpl.jarWebappLoader[]: Deploy JAR /WEB-INF/lib/xsltc.jar to D:\Projects\Event\Event\defaultroot\WEB-INF\lib\xsltc.jarStandardManager[]: Seeding random number generator class java.security.SecureRandomStandardManager[]: Seeding of random number generator has been completedContextConfig[]: Added certificates -> request attribute ValveStandardWrapper[:default]: Loading container servlet defaultException during startup processingjava.lang.reflect.InvocationTargetException at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:324) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:243)Caused by: java.lang.NoClassDefFoundError: javax/servlet/http/HttpServlet at java.lang.ClassLoader.defineClass0(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:502) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:123) at java.net.URLClassLoader.defineClass(URLClassLoader.java:250) at java.net.URLClassLoader.access$100(URLClassLoader.java:54) at java.net.URLClassLoader$1.run(URLClassLoader.java:193) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:186) at java.lang.ClassLoader.loadClass(ClassLoader.java:299) at java.lang.ClassLoader.loadClass(ClassLoader.java:292) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:265) at java.lang.ClassLoader.loadClass(ClassLoader.java:255) at org.apache.catalina.loader.StandardClassLoader.loadClass(StandardClassLoader.java:1076) at org.apache.catalina.loader.StandardClassLoader.loadClass(StandardClassLoader.java:992) at org.apache.catalina.loader.StandardClassLoader.loadClass(StandardClassLoader.java:1076) at org.apache.catalina.loader.StandardClassLoader.loadClass(StandardClassLoader.java:992) at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1380) at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1243) at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:865) at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:808) at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:3266) at org.apache.catalina.core.StandardContext.start(StandardContext.java:3395) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1123) at org.apache.catalina.core.StandardHost.start(StandardHost.java:614) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1123) at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:343) at org.apache.catalina.core.StandardService.start(StandardService.java:388) at org.apache.catalina.core.StandardServer.start(StandardServer.java:506) at org.apache.catalina.startup.Catalina.start(Catalina.java:781) at org.apache.catalina.startup.Catalina.execute(Catalina.java:681) at org.apache.catalina.startup.Catalina.process(Catalina.java:179) ... 5 more