问题描述
控制台报错：严重:Servlet.service()forservletjspthrewexceptionjava.lang.NullPointerExceptionatflex.bootstrap.BootstrapTag.<init>(BootstrapTag.java:39)atflex.bootstrap.BootstrapBodyTag.<init>(BootstrapBodyTag.java:28)atflex.webtier.server.j2ee.jsp.MxmlTagImpl.<init>(MxmlTagImpl.java:2)atsun.reflect.NativeConstructorAccessorImpl.newInstance0(NativeMethod)atsun.reflect.NativeConstructorAccessorImpl.newInstance(UnknownSource)atsun.reflect.DelegatingConstructorAccessorImpl.newInstance(UnknownSource)atjava.lang.reflect.Constructor.newInstance(UnknownSource)atjava.lang.Class.newInstance0(UnknownSource)atjava.lang.Class.newInstance(UnknownSource)atorg.apache.jasper.runtime.TagHandlerPool.get(TagHandlerPool.java:126)atorg.apache.jsp.Login_jsp._jspx_meth_mm_005fmxml_005f0(Login_jsp.java:166)atorg.apache.jsp.Login_jsp._jspx_meth_html_005fhtml_005f0(Login_jsp.java:127)atorg.apache.jsp.Login_jsp._jspService(Login_jsp.java:75)atorg.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)atjavax.servlet.http.HttpServlet.service(HttpServlet.java:717)atorg.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:386)atorg.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313)atorg.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)atjavax.servlet.http.HttpServlet.service(HttpServlet.java:717)atorg.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)atorg.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)atorg.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)atorg.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)atorg.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)atorg.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)atorg.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)atorg.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)atorg.apache.coyote.http11.Http11Processor.process(Http11Processor.java:859)atorg.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)atorg.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)atjava.lang.Thread.run(UnknownSource)JSP报错：org.apache.jasper.JasperException:AnexceptionoccurredprocessingJSPpage/Login.jspatline3229:30:<body>31:<!--height="700"width="1000"-->32:<mm:mxmlsource="StuObject.mxml"></mm:mxml>33:</body>34:</html:html>Stacktrace:org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:519)org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:410)org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313)org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)javax.servlet.http.HttpServlet.service(HttpServlet.java:717)rootcausejavax.servlet.ServletException:javax.servlet.jsp.JspException:nullorg.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:861)org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:794)org.apache.jsp.Login_jsp._jspService(Login_jsp.java:84)org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)javax.servlet.http.HttpServlet.service(HttpServlet.java:717)org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:386)org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313)org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)javax.servlet.http.HttpServlet.service(HttpServlet.java:717)rootcausejava.lang.NullPointerExceptionflex.bootstrap.BootstrapTag.<init>(BootstrapTag.java:39)flex.bootstrap.BootstrapBodyTag.<init>(BootstrapBodyTag.java:28)flex.webtier.server.j2ee.jsp.MxmlTagImpl.<init>(MxmlTagImpl.java:2)sun.reflect.NativeConstructorAccessorImpl.newInstance0(NativeMethod)sun.reflect.NativeConstructorAccessorImpl.newInstance(UnknownSource)sun.reflect.DelegatingConstructorAccessorImpl.newInstance(UnknownSource)java.lang.reflect.Constructor.newInstance(UnknownSource)java.lang.Class.newInstance0(UnknownSource)java.lang.Class.newInstance(UnknownSource)org.apache.jasper.runtime.TagHandlerPool.get(TagHandlerPool.java:126)org.apache.jsp.Login_jsp._jspx_meth_mm_005fmxml_005f0(Login_jsp.java:166)org.apache.jsp.Login_jsp._jspx_meth_html_005fhtml_005f0(Login_jsp.java:127)org.apache.jsp.Login_jsp._jspService(Login_jsp.java:75)org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)javax.servlet.http.HttpServlet.service(HttpServlet.java:717)org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:386)org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313)org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)javax.servlet.http.HttpServlet.service(HttpServlet.java:717)另求jar包和源码实例一份。最好是登录和增删改差，谢谢啊，急急急急急