这是个什么错误?加分

Question

2009-4-17 11:50:26 org.apache.catalina.core.StandardWrapperValve invoke
严重: Servlet.service() for servlet jsp threw exception
java.lang.RuntimeException: Cannot find FacesContext
at javax.faces.webapp.UIComponentClassicTagBase.getFacesContext(UIComponentClassicTagBase.java:1797)
at javax.faces.webapp.UIComponentClassicTagBase.setJspId(UIComponentClassicTagBase.java:1614)
at org.apache.jsp.loginForm_jsp._jspx_meth_f_005fview_005f0(loginForm_jsp.java:128)
at org.apache.jsp.loginForm_jsp._jspService(loginForm_jsp.java:102)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:393)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:320)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:261)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:581)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
at java.lang.Thread.run(Unknown Source)

Answer 1

java.lang.RuntimeException: Cannot find FacesContext 应该是你参数没有注入进去。

Answer 2

我看着怎么这么眼熟？
你是不是用 .jsp 进的网页？你配置一下
JSF 的Servlet路径。    <servlet-mapping>
        <servlet-name>Faces Servlet</servlet-name>
        <url-pattern>*.faces</url-pattern>
    </servlet-mapping>然后用 url-pattern 配置的模式进。
(上面的配置进index.jsp, 用 index.faces)

Answer 3

Servlet.service() 
初始化servlet出错

Answer 4

看java错误的时候从下往上追踪你的代码的错误问题，就知道错哪里了 ：这个文件的1789行。UIComponentClassicTagBase.java:1797  。应该是你的(loginForm_jsp.java:128) 
文件的 128的错误引起的 去看看128 

Answer 5

jsp页面的问题啦 128并不是你的jsp问题 而是齐备编译后后的class的行数