Frank,
I tried forwarding it to a jsp page ShowCharacters.jsp
<select name="TVShowSelect">
<%int i = 0;
ArrayList ch = (ArrayList)
request.getSession().getAttribute("characters");
String[] s = new String[ch.size()];
ch.toArray(s);
for (Iterator it = s.length; it.hasNext();) {
String name = (String)it.next();
%>
<option><%=name%></option>
</select>
public ActionForward execute(ActionMapping mapping, ActionForm inForm,
HttpServletRequest request, HttpServletResponse response) throws Exception {
String tvShow = (String)request.getParameter("tvShow");
if (tvShow == null) {
tvShow = "";
}
ArrayList characters = getCharacters(tvShow);
request.getSession().setAttribute("characters",
characters);
response.setContentType("text/html");
return mapping.findForward("success");
} // E
But when I select some value from the first combo box(TVShowSelect),I get
the message Problem:Internal Server Error.
IN the logs,I get the following error message
Servlet.service() for servlet jsp threw exception
org.apache.jasper.JasperException: Unable to compile class for JSP:
Stacktrace:
at
org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:85)
at
org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:330)
at
org.apache.jasper.compiler.JDTCompiler.generateClass(JDTCompiler.java:435)
at org.apache.jasper.compiler.Compiler.compile(Compiler.java:298)
at org.apache.jasper.compiler.Compiler.compile(Compiler.java:277)
at org.apache.jasper.compiler.Compiler.compile(Compiler.java:265)
at
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:564)
at
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:299)
at
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:315)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:265)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
at
org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:691)
at
org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:469)
at
org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:403)
at
org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:301)
at
org.apache.struts.action.RequestProcessor.doForward(RequestProcessor.java:1063)
at
org.apache.struts.action.RequestProcessor.processForwardConfig(RequestProcessor.java:386)
at
org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:229)
at
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1194)
at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:690)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:210)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:174)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:151)
at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:870)
at
org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665)
at
org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528)
at
org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81)
at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:685)
at java.lang.Thread.run(Thread.java:619)
Can you please post the coding here?
Thanks
Frank W. Zammetti wrote:
>
> Simply forward to a JSP and render your output there, same as any Struts
> Action. It can be XML, JSON, HTML, some custom format, whatever. I wish
> I had written that article showing that in the first place since this is a
> question that gets asked all the time, but I thought this was simpler (one
> less bounce to follow the ball through), but in retrospect.. :(
>
> Frank
>
> --
> Frank W. Zammetti
> Founder and Chief Software Architect
> Omnytex Technologies
> http://www.omnytex.com
> AIM/Yahoo: fzammetti
> MSN: [EMAIL PROTECTED]
> Author of "Practical Ajax Projects With Java Technology"
> (2006, Apress, ISBN 1-59059-695-1)
> and "JavaScript, DOM Scripting and Ajax Projects"
> (2007, Apress, ISBN 1-59059-816-4)
> Java Web Parts - http://javawebparts.sourceforge.net
> Supplying the wheel, so you don't have to reinvent it!
>
> On Tue, September 11, 2007 11:46 am, aarthy wrote:
>>
>> Hi,
>>
>> In the below code,how can I avoid the HTML coding in the action
>> class?(http://www.omnytex.com/articles/xhrstruts/xhrstruts.zip)
>> I tried many different codings,but everything failed.
>>
>> public class Example3GetCharactersAction extends Action {
>>
>>
>> public ActionForward execute(ActionMapping mapping, ActionForm inForm,
>> HttpServletRequest request, HttpServletResponse response) throws
>> Exception
>> {
>>
>> // Get a list of characters associated with the select TV show
>> String tvShow = (String)request.getParameter("tvShow");
>> if (tvShow == null) {
>> tvShow = "";
>> }
>> ArrayList characters = getCharacters(tvShow);
>>
>> // And yes, I know creating HTML in an Action is generally very bad
>> form,
>> // but I wanted to keep this exampel simple.
>> String html = "<select name=\"CharactersSelect\">";
>> int i = 0;
>> for (Iterator it = characters.iterator(); it.hasNext();) {
>> String name = (String)it.next();
>> i++;
>> html += "<option value=\"" + i + "\">" + name + "</option>";
>> }
>> html += "</select>";
>>
>> // Write the HTML to response
>> response.setContentType("text/html");
>> PrintWriter out = response.getWriter();
>> out.println(html);
>> out.flush();
>>
>> return null; // Not forwarding to anywhere, response is fully-cooked
>>
>> } // End execute()
>>
>>
>> // This method returns a list of characters for a given TV show. If no
>> TV
>> // show is selected, i.e., initial page view, am empty ArrayList is
>> returned.
>> private ArrayList getCharacters (String tvShow) {
>>
>> ArrayList al = new ArrayList();
>>
>> if (tvShow.equalsIgnoreCase("StarTrekTNG")) {
>> al.add("Jean Luc Picard");
>> al.add("William T. Riker");
>> al.add("Data");
>> al.add("Deanna Troi");
>> al.add("Geordi LaForge");
>> }
>>
>> if (tvShow.equalsIgnoreCase("Babylon5")) {
>> al.add("John Sheridan");
>> al.add("Delenn");
>> al.add("Londo Mollari");
>> al.add("Stephen Franklin");
>> al.add("Vir Cotto");
>> }
>>
>> if (tvShow.equalsIgnoreCase("StargateSG1")) {
>> al.add("Samantha Carter");
>> al.add("Jack O'Neil");
>> al.add("Teal'c");
>> al.add("Daniel Jackson");
>> al.add("Baal");
>> }
>>
>> return al;
>>
>> } // End getCharacters()
>>
>> Thanks.
>>
>> --
>> View this message in context:
>> http://www.nabble.com/Ajax-using-XMLHttpRequest-and-Struts-tf4423481.html#a12617736
>> Sent from the Struts - User mailing list archive at Nabble.com.
>>
>>
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>>
>>
>
>
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>
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