Dear Hans or everybody, please help me to explain what was happened
here.
I am doing customer registration, when the fields filled out and the
customer clicks the summit button, the action will point to a controller
jsp (process.jsp), there if the validation is ok, it will forward to a
servlet (ClientHandler), which will do one more validation: compare the
user_id against the database, if the user_id is already being taken,
then the servlet will forward to a retry.jsp to tell the customer to
chose a different user_id then summit the form and go through the whole
process again.
The problem is when the second time it go through the process.jsp it
throws me a error on the browser:
404 Not Found
/zuzupaddles/process.jsp:
allaire.jrun.JRunServletException: The page /ClientHandler could not be
found.
at allaire.jrun.jsp.JSPParser.generateXML(JSPParser.java:57)
at allaire.jrun.jsp.JSPServlet.parsePage(JSPServlet.java:403)
at allaire.jrun.jsp.JSPServlet.createServlet(JSPServlet.java:375)
at allaire.jrun.jsp.JSPServlet.loadPage(JSPServlet.java:201)
at allaire.jrun.jsp.JSPServlet.service(JSPServlet.java:168)
at allaire.jrun.servlet.JRunSE.service(JRunSE.java:1013)
at allaire.jrun.servlet.JRunSE.runServlet(JRunSE.java:925)
at
allaire.jrun.servlet.JRunRequestDispatcher.forward(JRunRequestDispatcher.java:88)
at allaire.jrun.jsp.JRunPageContext.forward(JRunPageContext.java:333)
at jrun__process2ejspc._jspService(jrun__process2ejspc.java:57)
at allaire.jrun.jsp.HttpJSPServlet.service(HttpJSPServlet.java:40)
at allaire.jrun.servlet.JRunSE.service(JRunSE.java:1013)
at allaire.jrun.servlet.JRunSE.runServlet(JRunSE.java:925)
at
allaire.jrun.servlet.JRunNamedDispatcher.forward(JRunNamedDispatcher.java:34)
at allaire.jrun.jsp.JSPServlet.service(JSPServlet.java:174)
at allaire.jrun.servlet.JRunSE.service(JRunSE.java:1013)
at allaire.jrun.servlet.JRunSE.runServlet(JRunSE.java:925)
at
allaire.jrun.servlet.JRunRequestDispatcher.forward(JRunRequestDispatcher.java:88)
at allaire.jrun.servlet.JRunSE.service(JRunSE.java:1131)
at allaire.jrun.servlet.JvmContext.dispatch(JvmContext.java:330)
at allaire.jrun.http.WebEndpoint.run(WebEndpoint.java:107)
at allaire.jrun.ThreadPool.run(ThreadPool.java:267)
at allaire.jrun.WorkerThread.run(WorkerThread.java:74)
on the err_log file it says:
java.lang.IllegalStateException: Response has already been committed
at
allaire.jrun.servlet.JRunResponse.resetContent(JRunResponse.java:170)
at allaire.jrun.servlet.JRunSE.runServlet(JRunSE.java:874)
at
allaire.jrun.servlet.JRunRequestDispatcher.forward(JRunRequestDispatcher.java:88)
at ClientHandler.doPost(ClientHandler.java:50)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:772)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:865)
at allaire.jrun.servlet.JRunSE.service(JRunSE.java:1013)
at allaire.jrun.servlet.JRunSE.runServlet(JRunSE.java:925)
at
allaire.jrun.servlet.JRunRequestDispatcher.forward(JRunRequestDispatcher.java:88)
at allaire.jrun.jsp.JRunPageContext.forward(JRunPageContext.java:333)
at jrun__process2ejspc._jspService(jrun__process2ejspc.java:57)
at allaire.jrun.jsp.HttpJSPServlet.service(HttpJSPServlet.java:40)
at allaire.jrun.servlet.JRunSE.service(JRunSE.java:1013)
at allaire.jrun.servlet.JRunSE.runServlet(JRunSE.java:925)
at
allaire.jrun.servlet.JRunNamedDispatcher.forward(JRunNamedDispatcher.java:34)
at allaire.jrun.jsp.JSPServlet.service(JSPServlet.java:174)
at allaire.jrun.servlet.JRunSE.service(JRunSE.java:1013)
at allaire.jrun.servlet.JRunSE.runServlet(JRunSE.java:925)
at
allaire.jrun.servlet.JRunRequestDispatcher.forward(JRunRequestDispatcher.java:88)
at allaire.jrun.servlet.JRunSE.service(JRunSE.java:1131)
at allaire.jrun.servlet.JvmContext.dispatch(JvmContext.java:330)
at allaire.jrun.http.WebEndpoint.run(WebEndpoint.java:107)
at allaire.jrun.ThreadPool.run(ThreadPool.java:267)
at allaire.jrun.WorkerThread.run(WorkerThread.java:74)
But the weird thing here is: if after the user_id changed and I do not
summit the form right away, instead I wait two minutes or so then
summit, there will no complain and the whole process will go through
whatever it should branch to. Could somebody tell me the whole picture
that I did not see?
The following is the process.jsp:
<jsp:useBean id="formHandler" class="ClientBean" scope="request"/>
<jsp:setProperty name="formHandler" property="*"/>
<%
if (formHandler.validate()) {
%>
<jsp:forward page="ClientHandler"/>
<%
} else {
%>
<jsp:forward page="retry.jsp"/>
<%
}
%>
Thanks very much,
--
Best Regards,
Yi Liu
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