Now Infamous "Could not find Errors instance for bean &
I am getting this seemingly common error when my form controller processes a request. I have poured through the forums and found one recommendation to change the (beanName).attribute to command.attribute in the spring bound form element. I have found that it is preferable to use the :
return new ModelAndView(getFormView(), errors.getModel());
when returning from the onSubmit method of the form controller. I have implemented both of these recommendations and still get this exception:
org.apache.jasper.JasperException: Could not find Errors instance for bean [maintainJobLineItemMaintainFormController] in request: add the Errors model to your ModelAndView via errors.getModel()
at org.apache.jasper.servlet.JspServletWrapper.servic e(JspServletWrapper.java:254)
at org.apache.jasper.servlet.JspServlet.serviceJspFil e(JspServlet.java:295)
at org.apache.jasper.servlet.JspServlet.service(JspSe rvlet.java:241)
at javax.servlet.http.HttpServlet.service(HttpServlet .java:853)
Here is the Formcontroller :
package com.meyertool.controllers;
import com.meyertool.controllers.formobjects.MaintainJobL ineItemForm;
import com.meyertool.managers.MaintainJobLineItemManager;
import com.meyertool.managers.MaintainJobManager;
import com.meyertool.model.mpcs.JobLineItem;
import com.meyertool.model.mpcs.JobLineItemPK;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.validation.BindException;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.SimpleFormCont roller;
import java.util.HashMap;
import java.util.Map;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
/**
* Created by IntelliJ IDEA.
* User: John
* Date: Sep 2, 2004
* Time: 8:51:13 AM
* To change this template use File | Settings | File Templates.
*/
public class MaintainJobLineItemMaintainFormController
extends SimpleFormController {
private static Log log = LogFactory.getLog(MaintainJobLineItemMaintainFormC ontroller.class);
private MaintainJobManager mgr = null;
public MaintainJobManager getMaintainJobManager() {
return mgr;
}
public void setMaintainJobManager(MaintainJobManager mgr) {
this.mgr = mgr;
}
public ModelAndView onSubmit(HttpServletRequest request,
HttpServletResponse response, Object command, BindException errors)
throws Exception {
JobLineItem jobLineItem = (JobLineItem) command;
String action = request.getParameter("action");
if (action == null)
{
errors.reject(action, "Null Action Value");
return new ModelAndView(getFormView(), errors.getModel());
}
if (action.equals("insert"))
{
mgr.insertLineItem(jobLineItem);
}
if (action.equals("update"))
{
mgr.updateLineItem(jobLineItem);
}
if (action.equals("delete"))
{
mgr.deleteLineItem(jobLineItem.getComp_id());
}
return new ModelAndView(getSuccessView(), errors.getModel());
}
protected ModelAndView returnJobItemListToView(String jobNo, BindException errors) {
Map model = new HashMap();
model.put("jobLineItemList", mgr.findJobLineItems(jobNo));
model.put("errors" , errors.getModel());
return new ModelAndView(this.getSuccessView(), model);
}
protected Object formBackingObject(HttpServletRequest request)
{
HttpSession session = request.getSession();
JobLineItem lineItem = (JobLineItem)session.getAttribute("lineItem");
String jobNo = request.getParameter("jobNo");
if (lineItem != null )
return lineItem;
else
{
lineItem = new JobLineItem();
JobLineItemPK pk = new JobLineItemPK();
lineItem.setComp_id(pk);
if (jobNo != null && jobNo.length() >0)
lineItem.getComp_id().setJobNo(jobNo);
return lineItem;
}
}
}
Here is the jsp :
<%@ include file="/WEB-INF/jsp/include/include.jspf" %>
<HTML>
<title>Meyer Tool, Inc. - Add Job Item</title>
<BODY>
<TABLE WIDTH="620" CLASS="lightbluetable" CELLPADDING=2 CELLSPACING=0>
<TR>
<TD><span class="heading2">Add Job line item:</span></TD>
</TR>
<TR>
<TD><span class="heading2small">Job: W175 Part#:1957M10</span></TD>
</TR>
<TR><TD><HR size="1"></TD></TR>
</TABLE>
<spring:bind path="maintainJobLineItemMaintainFormController">
<h3><font color="red"><c:out value="${status.errorMessage}" /></font> <c:out value="${status.value}" /></h3>
</spring:bind>
<table class="lightbluetable" width="620" cellspacing="0" cellpadding="2">
<tr>
<form action="job_ss_add.jsp" method="post">
<TD ALIGN="CENTER">
<input type="HIDDEN" name="JOB_NO" value="W175">
<input type="HIDDEN" name="JOB_LINE_ITEM_NO" value="1">
<input type="HIDDEN" name="RES_NO" value="1957M10">
<input type="HIDDEN" name="RES_TYPE" value="PART">
<input type="BUTTON" onclick="parent.location='job_line_item_list.shtml ';MM_popupMsg('Line Item Add - Simulated')" value="Add Ship Schedule Item" tabindex="1">
</TD>
</form>
<form action="job_ss_view.jsp" method="post">
<TD ALIGN="CENTER">
<input type="HIDDEN" name="JOB_NO" value="W175">
<input type="HIDDEN" name="JOB_LINE_ITEM_NO" value="1">
<input type="HIDDEN" name="RES_NO" value="1957M10">
<input type="HIDDEN" name="RES_TYPE" value="PART">
<input type="BUTTON" onclick="parent.location='line_item_list.shtml'" value="Back to View Line Items" tabindex="2">
</TD>
</form>
<form action="<c:url value="/usr/cust-ord/ord-proc/maintain-job/addjobitem.html" />" method="POST" name="maintainJobLineItemForm">
<TD ALIGN="CENTER">
<input type="HIDDEN" name="JOB_NO" value="W175">
<input type="HIDDEN" name="JOB_LINE_ITEM_NO" value="1">
<input type="HIDDEN" name="RES_NO" value="1957M10">
<input type="HIDDEN" name="RES_TYPE" value="PART">
<input type="HIDDEN" name="action" value="insert">
<input type="SUBMIT" value="Commit">
</TD>
</tr>
<tr>
<td COLSPAN="4"><HR SIZE="1"></td>
</tr>
</table>
<TABLE WIDTH="620" CLASS="lightbluetable" CELLPADDING=2 CELLSPACING=0>
<tr>
<td>
ITEM
<spring:bind path="command.comp_id.jobLineItemNo"><input class="querybox" name="JOB_LINE_ITEM_NO" value="<c:out value="${status.value}" />" size="3" tabindex="5" onblur="MM_validateForm('JOB_LINE_ITEM_NO','','R') ;return document.MM_returnValue" maxlength="3"></spring:bind>
<spring:bind path="command.comp_id.jobNo"><input class="querybox" name="JLI_LETTER" value="<c:out value="${status.value}" />" size="2" tabindex="6" maxlength="2"></spring:bind>
P/R# <spring:bind path="command.comp_id.resourceNo"><input class="querybox" name="RESOURCE_NO" value="<c:out value="${status.value}" />" size="25" tabindex="7" onblur="MM_validateForm('RESOURCE_NO','','R');retu rn document.MM_returnValue" maxlength="25"></spring:bind>
TYPE <spring:bind path="command.comp_id.resourceType"><input class="querybox" name="RESOURCE_TYPE" value="<c:out value="${status.value}" />" size="11" tabindex="8" onblur="MM_validateForm('RESOURCE_TYPE','','R');re turn document.MM_returnValue" maxlength="15"></spring:bind>
MT BRAZE <spring:bind path="command.mtiBraze"><input class="querybox" name="MTI_BRAZE" value="<c:out value="${status.value}" />" size="1" tabindex="9" onblur="MM_validateForm('MTI_BRAZE','','R');return document.MM_returnValue" maxlength="1"></spring:bind>
MT COAT <spring:bind path="command.mtiCoat"><input class="querybox" name="MTI_COAT" value="" size="1" tabindex="10" onblur="MM_validateForm('MTI_COAT','','R');return document.MM_returnValue" maxlength="1"></spring:bind>
<br><br>
QTY <spring:bind path="command.orderQuantity"><input class="querybox" name="ORDER_QUANTITY" value="<c:out value="${status.value}" />" size="6" tabindex="11" onblur="MM_validateForm('ORDER_QUANTITY','','R');r eturn document.MM_returnValue" maxlength="6"></spring:bind>
UNIT$ <spring:bind path="command.unitPrice"><input class="querybox" name="UNIT_PRICE" value="<c:out value="${status.value}" />" size="13" tabindex="12" onblur="MM_validateForm('UNIT_PRICE','','R');retur n document.MM_returnValue" maxlength="13"></spring:bind>
NO CHARGE <spring:bind path="command.nocharge"><input class="querybox" name="NOCHARGE" value="<c:out value="${status.value}" />" size="1" tabindex="13" maxlength="1"></spring:bind>
EXTENSION$ <input class="displaybox" name="JLI_TOTAL_PRICE" value="$275,000" size="15" tabindex="14" maxlength="15">
PAA <spring:bind path="command.paaNo"><input class="querybox" name="PAA_NO" value="" size="3" tabindex="15" maxlength="3"></spring:bind>
<p>OVERSH <spring:bind path="command.allowableOvership"><input class="querybox" name="ALLOWABLE_OVERSHIP" value="<c:out value="${status.value}" />" size="6" tabindex="16" onblur="MM_validateForm('ALLOWABLE_OVERSHIP','','R ');return document.MM_returnValue" maxlength="6"></spring:bind>
ITEM DESCR <spring:bind path="command.itenDescr"><input class="querybox" name="ITEM_DESCR" value="<c:out value="${status.value}" />" size="25" tabindex="17" onblur="MM_validateForm('ITEM_DESCR','','R');retur n document.MM_returnValue" maxlength="25"></spring:bind>
JOB$ <spring:bind path="command.total"><input class="displaybox" name="TOTAL_JOB_PRICE" value="<c:out value="${status.value}" />" size="13" tabindex="18" maxlength="13"></spring:bind>
VSE PENDING <spring:bind path="command.vsePending"><input class="querybox" name="VSE_PENDING" value="<c:out value="${status.value}" />" size="1" tabindex="19" maxlength="1"></spring:bind>
<br>
<br>
IT COMM <spring:bind path="command.lineItemComment"><input class="querybox" name="LINE_ITEM_COMMENT" value="<c:out value="${status.value}" />" size="48" tabindex="20" maxlength="240"></spring:bind>
REV <spring:bind path="command.jliRev"><input class="querybox" name="JLI_REV" value="<c:out value="${status.value}" />" size="3" tabindex="21" onblur="MM_validateForm('JLI_REV','','R');return document.MM_returnValue" maxlength="3"></spring:bind>
QUOTE <spring:bind path="command.quoteNo"><input class="querybox" name="QUOTE_NO" value="<c:out value="${status.value}" />" size="6" tabindex="22" maxlength="6"></spring:bind>
ITEM <spring:bind path="command.quoteLineItemNo"><input class="querybox" name="QUOTE_LINE_ITEM_NO" value="<c:out value="${status.value}" />" size="3" tabindex="23" maxlength="3"></spring:bind>
<br>
<br>
P/R# <spring:bind path="command.qliResourceNo"><input class="querybox" name="QLI_RESOURCE_NO" value="<c:out value="${status.value}" />" size="25" tabindex="24" maxlength="25"></spring:bind>
<spring:bind path="command.qliItemDescr"><input class="displaybox" name="QLI_ITEM_DESCR" value="<c:out value="${status.value}" />" size="25" tabindex="25" maxlength="25"></spring:bind>
ERS? <spring:bind path="command.invoiceFlag"><input class="querybox" name="INVOICE_FLAG" value="<c:out value="${status.value}" />" size="1" tabindex="26" maxlength="1"></spring:bind></p>
<p>S/I IT/P#/DS<spring:bind path="command.siResourceNo"><input class="querybox" name="SI_RESOURCE_NO" value="<c:out value="${status.value}" />" size="25" tabindex="27" maxlength="25"></spring:bind>
<spring:bind path="command.siItemDescr"><input class="querybox" name="SI_ITEM_DESCR" value="<c:out value="${status.value}" />" size="25" tabindex="28" maxlength="25"></spring:bind>
DUPL SNO? <spring:bind path="command.duplSno"><input class="querybox" name="DUPL_SNO" value="<c:out value="${status.value}" />" size="1" tabindex="29" onblur="MM_validateForm('DUPL_SNO','','R');return document.MM_returnValue" maxlength="1"></spring:bind>
<br>
<br>
MTB/C cost: <spring:bind path="command.costItemNo"><input class="querybox" name="COST_ITEM_NO" value="<c:out value="${status.value}" />" size="3" tabindex="30" maxlength="3"></spring:bind>
P/R <spring:bind path="command.costResourceNo"><input class="querybox" name="COST_RESOURCE_NO" value="<c:out value="${status.value}" />" size="25" tabindex="31" maxlength="25"></spring:bind>
<spring:bind path="command.costResourceType"><input class="querybox" name="COST_RESOURCE_TYPE" value="<c:out value="${status.value}" />"size="5" tabindex="32" maxlength="15"></spring:bind>
PRDC <spring:bind path="command.productCode"><input class="displaybox" name="PRODUCT_CODE" value="<c:out value="${status.value}" />" size="9" tabindex="33" maxlength="15"></spring:bind>
<br>
<br>
TIME & MATL - NO QUOTE <spring:bind path="command.noQuote"><input class="querybox" name="NO_QUOTE" value="<c:out value="${status.value}" />" size="1" tabindex="34" maxlength="1"></spring:bind>
PRATTC CTO? <spring:bind path="command.ctoFlag"><input class="querybox" name="CTO_FLAG" value="<c:out value="${status.value}" />" disabled size="1" tabindex="35" maxlength="1"></spring:bind>
<br>
<br>
</p>
</td>
</tr>
<tr>
<td colspan="4"></td>
</tr>
</form>
</TABLE>
</BODY>
</HTML>
Finally Here is the mapping :
<bean id="maintainJobLineItemMaintainFormController" class="com.meyertool.controllers.MaintainJobLineIt emMaintainFormController" >
<property name="commandName"><value>jobLineItem</value></property>
<property name="commandClass"><value>com.meyertool.model.mpc s.JobLineItem</value></property>
<!-- <property name="validator"><ref local="maintainJobMaintainValidator" /></property> -->
<property name="formView"><value>usr/cust-ord/ord-proc/maintain-job/addjobitem</value></property>
<property name="successView"><value>usr/cust-ord/ord-proc/maintain-job/addjobitem</value></property>
<property name="maintainJobManager"><ref bean="maintainJobManager" /></property>
<property name="sessionForm"><value>true</value></property>
</bean>
<bean id="urlMapping" class="org.springframework.web.servlet.handler.Sim pleUrlHandlerMapping">
<property name="mappings">
<props>
<!-- default page -->
<prop key="/mtwa.html">mtwaController</prop>
<!-- maintain job mappings -->
<prop key="/usr/cust-ord/ord-proc/maintain-job/search.html">maintainJobSearchFormController</prop>
<prop key="/usr/cust-ord/ord-proc/maintain-job/maintain.html">maintainJobMaintainFormController</prop>
<prop key="/usr/cust-ord/ord-proc/maintain-job/lineitemlist.html">maintainJobMultiActionControlle r</prop>
<prop key="/usr/cust-ord/ord-proc/maintain-job/addjobitem.html">maintainJobLineItemMaintainFormCo ntroller</prop>
</props>
</property>
</bean>
I appreciate your help.
Also, if you have a sample test case for a form controller in which the command object has a composite, self generated, primary key, I would appreciate getting my hands on it.
Thank You;
John Olmstead
jolmstead2k@yahoo.com
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