Plz help urgent,error in pressing image

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peeya
2005-07-11
2013-04-25
  • peeya

    peeya - 2005-07-11

    hi
    i have to make a image on clicking that an action has to be done
    so i made a action class that extends Select
    Action class and as the example says i did all the neccessary thing my code is as follow

    Action class
    import java.io.IOException;
    import java.util.HashMap;
    import java.util.Map;

    import javax.servlet.ServletException;
    import javax.servlet.http.HttpServletRequest;
    import javax.servlet.http.HttpServletResponse;

    import org.apache.struts.action.ActionForm;
    import org.apache.struts.action.ActionForward;
    import org.apache.struts.action.ActionMapping;

    public class tabAction extends SelectAction {

        // Define mapping from button to method
        protected Map getKeyMethodMap() {
            Map map = new HashMap();
            map.put("app-submit-button-add", "add");
             return map;
        }

        // Handler of Add button
        public ActionForward add(ActionMapping mapping,
                                 ActionForm form,
                                 HttpServletRequest request,
                                 HttpServletResponse response)
              throws IOException, ServletException {
          System.out.println("--> add");
          return mapping.findForward("Page12");
        }

        // Handler of Delete button
      

        // Handler of unknown button, which name does not start with button prefix
        public ActionForward unspecified(ActionMapping mapping,
                                         ActionForm form,
                                         HttpServletRequest request,
                                         HttpServletResponse response)
              throws IOException, ServletException {
          System.out.println("--> unspecified");
          return mapping.findForward("unspecifiedpage");
        }
    }

    struts-config.xml
    <action name="loginForm" path="/tabTest1" scope="session" type="com.actions.schd.tabAction" parameter="myapp-submit">
                <forward name="Page12" path="/WEB-INF/pages/css/schd/tab2.jsp">
                </forward>

    and my jsp is
    <%@page contentType="text/html" %>
    <%@ taglib uri="/WEB-INF/struts-bean.tld" prefix="bean" %>
    <%@ taglib uri="/WEB-INF/struts-logic.tld" prefix="logic" %>
    <%@ taglib uri="/WEB-INF/struts-html.tld" prefix="html" %>

    <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
    <html>

    <head>
        <title>JSP Page</title>\n\ </head>

    <body bgcolor="#FFFFFF">
    <html:form action="/tabTest1">
            <TABLE border="0" width='100%'>
            <TBODY>
                <TR>
                    <TH>Previous Contract Identifier</TH>
                    <TD><input type="image" src='resources/tabimages/active_inactive.gif' name="myapp-submit-button-add"  />
                   
                </TR>
            </TBODY>
        </TABLE>
    </html:form>
    </body>

    </html>
    but however when i press the image i get the following error

    javax.servlet.ServletException: Dispatch action /tabTest1 returned null or non-string method name for request key myapp-submit-button-add
        com.sabc.css.actions.schd.SelectAction.getMethodName(SelectAction.java:256)
        org.apache.struts.actions.DispatchAction.execute(DispatchAction.java:182)
        org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:421)
        org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:226)
        org.apache.struts.action.ActionServlet.process(ActionServlet.java:1164)
        com.tcs.joa.struts.ActionServlet.process(ActionServlet.java:245)
        org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:415)
        javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
        javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
        org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:75)

    can anybody help me and tell me where iam wrong
    thanks alot

     
    • Michael Jouravlev

      You are submitting "myapp-submit-button-add" from the form, but you are mapping "app-submit-button-add" in the getKeyMethodMap().

      Change the line in getKeyMethodMap as follows:
      map.put("myapp-submit-button-add", "add");
      and it should work.

      Michael.

       

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