这是错误日志:
输入例外报告
消息在第19行处理JSP页面/WEB-INF/views>/mob_admin_only/themHS.jsp时发生异常
说明服务器遇到内部错误,导致无法完成此请求。
例外
org.apache.jasper.JasperException:在第19行处理JSP> page /WEB-INF/views/mob_admin_only/themHS.jsp时发生异常
堆栈跟踪:
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWra> pper.java:574) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:4>76) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:396) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:340) javax.servlet.http.HttpServlet.service(HttpServlet.java:729) org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) Servlet.themHSServlet.doGet(themHSServlet.java:27) javax.servlet.http.HttpServlet.service(HttpServlet.java:622) javax.servlet.http.HttpServlet.service(HttpServlet.java:729) org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) Filter.PermissionFilter.doFilter(PermissionFilter.java:43) Filter.EncodingFilter.doFilter(EncodingFilter.java:41)
根本原因
显示java.lang.NullPointerException
javax.faces.webapp.UIComponentClassicTagBase.setJspId(UIComponentClassicTagB> ase.java:1856) org.apache.jsp.WEB_002dINF.views.mob_005fadmin_005fonly.themHS_jsp._jspx_met> h_f_005fview_005f0(themHS_jsp.java:181) org.apache.jsp.WEB_002dINF.views.mob_005fadmin_005fonly.themHS_jsp._jspServi> CE(themHS_jsp.java:147) org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70) javax.servlet.http.HttpServlet.service(HttpServlet.java:729) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:4>38) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:396) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:340) javax.servlet.http.HttpServlet.service(HttpServlet.java:729) org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) Servlet.themHSServlet.doGet(themHSServlet.java:27) javax.servlet.http.HttpServlet.service(HttpServlet.java:622) javax.servlet.http.HttpServlet.service(HttpServlet.java:729) org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) Filter.PermissionFilter.doFilter(PermissionFilter.java:43) Filter.EncodingFilter.doFilter(EncodingFilter.java:41)GT;
注意Apache> Tomcat / 8.0.24日志中提供了根本原因的完整堆栈跟踪。
以下是我的jsp页面:
16: <div id="content">
17: <jsp:include page="../header.jsp" />
18: <h1>Nháºp hồ sÆ¡ thĂ sinh - Kì tuyển sinh 2015</h1>
19: <f:view>
20: <h:form >
21:
22: <!--content-->
我是JSF的新手,这里出了什么问题?