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一个JSP_HTTP Status 500问题

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0 | 2006-4-26 13:09:00 | 显示全部楼层 |阅读模式

HTTP Status 500 -
--------------------------------------------------------------------------------
type Exception report
message
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
org.apache.jasper.JasperException

org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:510)

org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:393)

org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)

org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)

javax.servlet.http.HttpServlet.service(HttpServlet.java:802)

root cause
java.lang.NullPointerException

javax.faces.webapp.UIComponentTag.setupResponseWriter(UIComponentTag.java:646)

javax.faces.webapp.UIComponentTag.doStartTag(UIComponentTag.java:254)

org.apache.myfaces.taglib.core.ViewTag.doStartTag(ViewTag.java:90)

org.apache.jsp.index_jsp._jspx_meth_f_view_0(index_jsp.java:112)

org.apache.jsp.index_jsp._jspService(index_jsp.java:81)

org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)

javax.servlet.http.HttpServlet.service(HttpServlet.java:802)

org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:332)

org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)

org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)

javax.servlet.http.HttpServlet.service(HttpServlet.java:802)

note The full stack trace of the root cause is available in the Apache Tomcat/5.5.16 logs.
请问一下这是什么原因造成的
俺是小菜刚学，8太懂
index.jsp

Welcome to Aaron's JSP!!!
">

[url=]Login[/url]

width="">

Welcome to Aaron' first jsp!!!

Try !

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