[davout]

I’ve added Struts validation to my application and I’m getting an exception when I try to use the ‘required’ validation type.

Here’s the code…

The ‘validation.xml’ file…

 
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE form-validation PUBLIC "-//Apache Software Foundation//DTD Commons Validator Rules Configuration 1.1.3//EN" "http://jakarta.apache.org/commons/dtds/validator_1_1_3.dtd">
 <form-validation>
   <formset>
      <form name="impactNegationEditForm">
         <field property="title" depends="required">
            <arg0 key="label.title"/>
         </field>
      </form>
   </formset>
 </form-validation>

the start of the ‘validation-rules.xml’ file…

 
 <!DOCTYPE form-validation PUBLIC
           "-//Apache Software Foundation//DTD Commons Validator Rules Configuration 1.1.3//EN"
           "http://jakarta.apache.org/commons/dtds/validator_1_1_3.dtd">
 <form-validation>
 
    <global>
 
       <validator name="required"
             classname="org.apache.struts.validator.FieldChecks"
                method="validateRequired"
          methodParams="java.lang.Object,
                        org.apache.commons.validator.ValidatorAction,
                        org.apache.commons.validator.Field,
                        org.apache.struts.action.ActionMessages,
                        org.apache.commons.validator.Validator,
                        javax.servlet.http.HttpServletRequest"
                   msg="errors.required"/>

the related action class…

 public class ImpactNegationEditAction extends AbstractImpactNegationAction
       implements EntityIDs, ImpactNegationIDs {
 
    public void save_onClick(FormActionContext aCtx) {
       ImpactNegationEditForm aForm = (ImpactNegationEditForm) aCtx.form();
       aCtx.addErrors(aForm.validate(aCtx.mapping(),aCtx.request()));
       if (aCtx.hasErrors() == false) {
          // is add?
          if (aForm.getImpactNegationIDInt() == ID_UNASSIGNED) {
             // verify title is unique
             try {
                ImpactNegation anOther = getManager(aCtx).findByTitle(aForm.getTitle());
                if (anOther != null) {
                   addFieldError(aCtx,"title","error.duplicateField","Title");
                }

the related form…

 
 public abstract class AbstractSorForm extends FWValidatorForm {
 }
 
 public class ImpactNegationEditForm extends AbstractSorForm {
    
    private static final long serialVersionUID = 3604637580339030809L;
    
    private String fImpactNegationID;
    private String fTitle;
    private String fDesc;
    private String fDisplayOrder;
    private String fPercent;
    private String fCaptionDetail = null;
    private String fFormTitle = null;
 
    public ImpactNegationEditForm() {
       // TODO Auto-generated constructor stub
    }
    
    public String getDesc() {
       return fDesc;
    }
 
    public void setDesc(String aDesc) {
       fDesc = aDesc;
    }
 
    public String getDisplayOrder() {
       return fDisplayOrder;
    }
    public int getDisplayOrderInt() {
       return Integer.parseInt(fDisplayOrder);
    }
 
    public void setDisplayOrder(String aDisplayOrder) {
       fDisplayOrder = aDisplayOrder;
    }
 
    public String getImpactNegationID() {
       return fImpactNegationID;
    }
 
    public int getImpactNegationIDInt() {
       return Integer.parseInt(fImpactNegationID);
    }
 
    public void setImpactNegationID(String aId) {
       fImpactNegationID = aId;
    }
 
    public String getPercent() {
       return fPercent;
    }
    public double getPercentDouble() {
       return Double.parseDouble(fPercent);
    }
 
    public void setPercent(String aPercent) {
       fPercent = aPercent;
    }
 
    public String getTitle() {
       return fTitle;
    }
 
    public void setTitle(String aTitle) {
       fTitle = aTitle;
    }
 
    public String getCaptionDetail() {
       return fCaptionDetail;
    }
 
    public void setCaptionDetail(String aCaptionDetail) {
       fCaptionDetail = aCaptionDetail;
    }
 
    public String getFormTitle() {
       return fFormTitle;
    }
 
    public void setFormTitle(String aFormTitle) {
       fFormTitle = aFormTitle;
    }
 }
 

the JSP body file…

 <ctrl:headline caption="Impact Negation" detail="${impactNegationEditForm.captionDetail}" width="60%"/>
 
 <html:form action="sor/admin/impact_negation/impact_negation_edit" >
 
    <html:hidden property="impactNegationID"/>
 
    <forms:message  caption="Error"  severity="error"  formid="err"/>
    <forms:message  caption="Information"  severity="information"  formid="info"/>
 
    <forms:form name="impactNegationEditForm"
                type="edit"
                caption="${impactNegationEditForm.formTitle}"
                formid="impactNegationEditForm" width="60%">
       <forms:text label="Title" property="title" required="true"/>
       <forms:textarea label="Description" property="desc" cols="60" rows="6"/>
       <forms:text label="Display order" property="displayOrder"/>
       <forms:text label="Percent" property="percent"/>
 
       <forms:buttonsection>
           <forms:button styleId="btnBack" name="btnCancel" text="Cancel" />
           <forms:button styleId="btnBack" name="btnRestore" text="Restore" />
           <forms:button styleId="btnBack" name="btnSave" text="Save" />
       </forms:buttonsection>
 
    </forms:form>
 
 </html:form>

the exception thrown when the form is validated...
 ERROR: 18:54:18: org.apache.struts.validator.ValidatorForm: org.apache.struts.validator.FieldChecks.validateRequired(java.lang.Object, org.apache.commons.validator.ValidatorAction, org.apache.commons.validator.Field, org.apache.struts.action.ActionMessages, org.apache.commons.validator.Validator, javax.servlet.http.HttpServletRequest)
 org.apache.commons.validator.ValidatorException: org.apache.struts.validator.FieldChecks.validateRequired(java.lang.Object, org.apache.commons.validator.ValidatorAction, org.apache.commons.validator.Field, org.apache.struts.action.ActionMessages, org.apache.commons.validator.Validator, javax.servlet.http.HttpServletRequest)
   at org.apache.commons.validator.ValidatorAction.loadValidationMethod(ValidatorAction.java:627)
   at org.apache.commons.validator.ValidatorAction.executeValidationMethod(ValidatorAction.java:557)
   at org.apache.commons.validator.Field.validateForRule(Field.java:811)
   at org.apache.commons.validator.Field.validate(Field.java:890)
   at org.apache.commons.validator.Form.validate(Form.java:174)
   at org.apache.commons.validator.Validator.validate(Validator.java:367)
   at org.apache.struts.validator.ValidatorForm.validate(ValidatorForm.java:112)
   at com.eis.sor.struts.action.impactnegation.ImpactNegationEditAction.save_onClick(ImpactNegationEditAction.java:84)
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
   at java.lang.reflect.Method.invoke(Method.java:585)
   at com.cc.framework.adapter.struts.ActionUtil.handleFormAction(Unknown Source)
   at com.cc.framework.adapter.struts.FWAction.handleFormAction(Unknown Source)
   at com.cc.framework.adapter.struts.ActionUtil.execute(Unknown Source)
   at com.cc.framework.adapter.struts.FWAction.execute(Unknown Source)
   at com.eis.sor.struts.action.common.AbstractSorAction.execute(AbstractSorAction.java:30)
   at com.cc.framework.adapter.struts.FWAction.execute(Unknown Source)
   at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:421)
   at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:226)
   at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1164)
   at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:415)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:709)

Ideas???

[Riyad Kalla]

Moving to OT > Soft Dev

[Author]

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