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Hi,
I am trying to populate a form in jsp file via one controller class. I have Subject form which have only two field subjectId and subjectDesc.
I have one model class called Subject.java which have only two member variable.
I have one form class called SubjectForm.java which have same two member variable. and getter and setter same as Subject.java.I have one jsp file in which I have link to /editSubject?action=Create. after click to this link I should have a subject entry page but Instead I am getting the above error.
First of all my config file is like
struts-config.xml
<struts-config> <!-- ========== Form Bean Definitions =================================== --> <form-beans> <!-- Subject form bean --> <form-bean name="subjectForm" type="com.webapp.forum.controller.form.SubjectForm"> </form-bean> </form-beans> <!-- ========== Global Forward Definitions ============================== --> <global-forwards> <forward name="Subject" path="/Subject.do"/> </global-forwards> <!-- ========== Action Mapping Definitions ============================== --> <action-mappings> <action path = "/Subject" forward = "page.subject"/> <!-- Edit Subject Description --> <action path="/editSubject" type="com.webapp.forum.controller.action.EditSubjectAction" name="subjectForm" scope="request" validate="false"> <forward name="Home" path="base.definition"/> <forward name="Subject" path="page.subject"/> <forward name="Subjects" path="view.subjects"/> </action> <!-- Save user registration --> <action path="/saveSubject" type="com.webapp.forum.controller.action.SaveSubjectAction" name="subjectForm" scope="request" input="page.subject"> <forward name="Home" path="base.definition"/> <forward name="Subjects" path="view.subjects"/> </action> </action-mappings> </struts-config>subject.jsp
<%-- start taglib--%> <%@ include file="/pages/taglibs.inc.jsp" %> <%-- end taglib--%> <div class="subject"> <html:form action="/saveSubject"> hello <logic:equal name="subjectForm" property="action" scope="request" value="Create"> <h2> <bean:message key="app.title" /> <bean:message key="app.bullet" /> <bean:message key="title.subject.create"/> </h2> </logic:equal> hello1 <logic:equal name="subjectForm" property="action" scope="request" value="Edit"> <h2> <bean:message key="app.title" /> <bean:message key="app.bullet" /> <bean:message key="title.subject.edit"/> </h2> </logic:equal> <html:hidden property="action" write="false"/> <bean:message key="errors.header" bundle="errors"/> <html:errors bundle="errors"/> <bean:message key="errors.footer" bundle="errors"/> <br/> <table cellSpacing="0" cellPadding="0" width="100%" border="0" style="border-collapse: collapse" bordercolor="#111111"> <tr> <td class="tdstyle" style="background-image: url('style/images/top_bg.gif'); width:21px" vAlign="top" align="left" width="254" height="31"> <img alt src="style/images/top_left.gif" border="0" width="15" height="31"></td> <td class="tdstyle" style="background-image: url('style/images/top_bg.gif'); width:100%" align="center" height="31"> <logic:equal name="subjectForm" property="action" scope="request" value="Create"> <bean:message key="title.registration.create" /> </logic:equal> <logic:equal name="subjectForm" property="action" scope="request" value="Edit"> <bean:message key="title.registration.edit" /> </logic:equal> </td> <td class="tdstyle" vAlign="center" align="left" width="15"> <img alt src="style/images/top_right.gif" border="0" width="15" height="31"></td> </tr> </table> <table class="tborder" border="0" width="100%"> <tr class="tdstyle"> <td align="right"> <bean:message key="prompt.subject.id" bundle="labels"/>: </td> <td align="left"> <logic:equal name="subjectForm" property="action" scope="request" value="Create"> <bean:message key="prompt.auto.subject.id" bundle="labels"/>: <html:hidden property="subjectId" value="0" write="false"/> </logic:equal> <logic:equal name="subjectForm" property="action" scope="request" value="Edit"> <bean:write name="subjectForm" property="subjectId" scope="request" filter="true"/> <html:hidden property="subjectId" write="false"/> </logic:equal> </td> </tr> <tr class="tdstyle"> <td align="right"> <bean:message key="prompt.subject.desc" bundle="labels"/>: </td> <td align="left"> <html:text property="subjectDesc" size="45" styleClass="text"/> </td> </tr> <tr> <td align="center" colspan="2" height="35"> <html:submit styleClass="bgbutton"> <bean:message key="button.save" bundle="labels"/> </html:submit> <html:reset styleClass="bgbutton"> <bean:message key="button.reset" bundle="labels"/> </html:reset> <html:cancel styleClass="bgbutton"> <bean:message key="button.cancel" bundle="labels"/> </html:cancel> </td> </tr> </table> <table cellSpacing="0" cellPadding="0" width="100%" border="0" style="border-collapse: collapse" bordercolor="#111111"> <tr> <td vAlign="top" align="left" width="12" class="tdstyle"> <img alt src="style/images/blc.gif" border="0" width="12" height="13"></td> <td class="tdstyle" style="background-image: url('style/images/bottom.gif'); width:100%" bordercolorlight="#FFFFFF" bordercolordark="#FFFFFF"></td> <td vAlign="top" align="right" width="12" class="tdstyle"> <img alt src="style/images/brc.gif" border="0" width="12" height="13"></td> </tr> </table> </html:form> </div>the controller class
EditSubjectAction.java
import java.lang.reflect.InvocationTargetException; import javax.servlet.ServletException; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import javax.servlet.http.HttpSession; import org.apache.commons.beanutils.PropertyUtils; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.apache.struts.action.Action; import org.apache.struts.action.ActionForm; import org.apache.struts.action.ActionForward; import org.apache.struts.action.ActionMapping; /**Importing UserBean, Constant, SubjectForm class **/ import com.webapp.Subject; import com.webapp.Constants; import com.webapp.ForwardConstants; import com.webapp.SubjectForm; public final class EditSubjectAction extends Action { private Log log = LogFactory.getLog("com.webapp.Action"); public ActionForward execute(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws Exception { // Extract attributes we will need HttpSession session = request.getSession(); String action = request.getParameter("action"); if (action == null) action = "Create"; if (log.isDebugEnabled()) { log.debug("EditSubjectAction: Processing " + action + " action"); } // Is there a currently logged on subject? Subject subject = null; if (!"Create".equals(action)) { subject = (Subject) request.getAttribute(Constants.SUBJECT_KEY); if (subject == null) subject = (Subject) session.getAttribute(Constants.SUBJECT_KEY); if (subject == null) { if (log.isDebugEnabled()) { log.debug(" Subject is not defined in Session or Request " + session.getId()); } return (mapping.findForward("Test")); } } // Populate the subject form if (form == null) { if (log.isTraceEnabled()) { log.trace(" Creating new SubjectForm bean under key " + mapping.getAttribute()); } form = new SubjectForm(); if ("request".equals(mapping.getScope())) request.setAttribute(mapping.getAttribute(), form); else session.setAttribute(mapping.getAttribute(), form); } SubjectForm subform = (SubjectForm) form; if (subject != null) { if (log.isTraceEnabled()) { log.trace(" Populating form from " + subject); } try { PropertyUtils.copyProperties(subform, subject); subform.setAction(action); } catch (InvocationTargetException e) { Throwable t = e.getTargetException(); if (t == null) t = e; log.error("SubjectForm.populate", t); throw new ServletException("SubjectForm.populate", t); } catch (Throwable t) { log.error("SubjectForm.populate", t); throw new ServletException("SubjectForm.populate", t); } } // Set a transactional control token to prevent double posting if (log.isTraceEnabled()) { log.trace(" Setting transactional control token"); } saveToken(request); // Forward control to the edit Subject page if (log.isTraceEnabled()) { log.trace(" Forwarding to 'success' page"); } return (mapping.findForward(ForwardConstants.SUB_PAGE)); } }and this is giving me an error like below
SEVERE: ServletException in '/pages/tiles/subject.jsp': No form found under 'subjectForm' in locale 'en_AU' javax.servlet.ServletException: No form found under 'subjectForm' in locale 'en_AU' at org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:848) at org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:781) at org.apache.jsp.pages.tiles.subject_jsp._jspService(org.apache.jsp.pages.tiles.subject_jsp:126) at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97) at javax.servlet.http.HttpServlet.service(HttpServlet.java:802) at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:322) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:291) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241) at javax.servlet.http.HttpServlet.service(HttpServlet.java:802) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:672) at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:574) at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:499) at org.apache.jasper.runtime.JspRuntimeLibrary.include(JspRuntimeLibrary.java:966) at org.apache.jasper.runtime.PageContextImpl.include(PageContextImpl.java:604) at org.apache.struts.tiles.TilesUtilImpl.doInclude(TilesUtilImpl.java:99) at org.apache.struts.tiles.TilesUtil.doInclude(TilesUtil.java:135) at org.apache.struts.taglib.tiles.InsertTag.doInclude(InsertTag.java:760) at org.apache.struts.taglib.tiles.InsertTag$InsertHandler.doEndTag(InsertTag.java:892) at org.apache.struts.taglib.tiles.InsertTag.doEndTag(InsertTag.java:462) at org.apache.jsp.pages.myLayout_jsp._jspx_meth_tiles_insert_2(org.apache.jsp.pages.myLayout_jsp:360) at org.apache.jsp.pages.myLayout_jsp._jspx_meth_html_html_0(org.apache.jsp.pages.myLayout_jsp:148) at org.apache.jsp.pages.myLayout_jsp._jspService(org.apache.jsp.pages.myLayout_jsp:91) at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97) at javax.servlet.http.HttpServlet.service(HttpServlet.java:802) at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:322) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:291) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241) at javax.servlet.http.HttpServlet.service(HttpServlet.java:802) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:672) at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:463) at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:398) at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:301) at org.apache.struts.action.RequestProcessor.doForward(RequestProcessor.java:1062) at org.apache.struts.tiles.TilesRequestProcessor.doForward(TilesRequestProcessor.java:263) at org.apache.struts.tiles.TilesRequestProcessor.processTilesDefinition(TilesRequestProcessor.java:239) at org.apache.struts.tiles.TilesRequestProcessor.processForwardConfig(TilesRequestProcessor.java:302) at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:229) at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196) at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414) at javax.servlet.http.HttpServlet.service(HttpServlet.java:689) at javax.servlet.http.HttpServlet.service(HttpServlet.java:802) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:856) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:744) at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527) at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80) at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684) at java.lang.Thread.run(Unknown Source)
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