Question

javax.servlet.ServletException: java.lang.NoClassDefFoundError: javax/servlet/jsp/tagext/Tag

有一个web工程，在本地跑都是没问题的。服务器不管使用tomcat还是jboss 都能跑的。但是放在我们商测服务器上就不行。报错。javax.servlet.ServletException: java.lang.NoClassDefFoundError: javax/servlet/jsp/tagext/Tag
javax.servlet.ServletException: java.lang.NoClassDefFoundError: javax/servlet/jsp/tagext/Tag
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:273)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
org.apache.struts2.dispatcher.ServletDispatcherResult.doExecute(ServletDispatcherResult.java:154)
org.apache.struts2.dispatcher.StrutsResultSupport.execute(StrutsResultSupport.java:186)
com.opensymphony.xwork2.DefaultActionInvocation.executeResult(DefaultActionInvocation.java:362)
com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:266)
com.opensymphony.xwork2.interceptor.DefaultWorkflowInterceptor.doIntercept(DefaultWorkflowInterceptor.java:165)
com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:87)

note The full stack trace of the root cause is available in the
JBossWeb/2.0.1.GA logs.
请各位高手指点！谢谢！（商测服务器上用的是jboss）

Answer 1

无类 NoClassDefFoundError: javax/servlet/jsp/tagext/Tag。看看你jboss里有没有

Answer 2

应该是缺少javaee.jar包吧，或者版本问题