FormBean reset issue

Greenhorn

Posts: 4

posted 18 years ago

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Hi,

I am experiencing a problem which i think is not normal. My FormBean retains the previous value(s) even when i override the reset() in my FormBean.
A temporary hack is to set my FormBean properties to null in my Action class which i am not at home with.
Any help/clues would be appreciated.

Thanks.
wale.
The code is posted here.

page.jsp

struts-config.xml

Action class

package com.test;
import org.apache.struts.action.Action;
import java.io.IOException;
 
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 TestAction extends Action 
{
  /**
   * This is the main action called from the Struts framework.
   * @param mapping The ActionMapping used to select this instance.
   * @param form The optional ActionForm bean for this request.
   * @param request The HTTP Request we are processing.
   * @param response The HTTP Response we are processing.
   */
  public ActionForward execute(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException
  {
    System.out.println("in execute");
    TestBean testBean = (TestBean)form;
    //testBean.setPassword("");
    //testBean.setUserName("");
    return mapping.findForward("view");
  }
}

FormBean Class

package com.test;
import org.apache.struts.action.ActionError;
import org.apache.struts.action.ActionForm;
import javax.servlet.http.HttpServletRequest;
 
import org.apache.struts.action.ActionErrors;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.action.ActionMessage;
 
public class TestBean extends ActionForm 
{
  /**
   * Reset all properties to their default values.
   * @param mapping The ActionMapping used to select this instance.
   * @param request The HTTP Request we are processing.
   */
   private String userName;
   private String password;
   
   public TestBean()
   {
     
     System.out.println("TestBean : Constructor");
   }
   
  public void reset(ActionMapping mapping, HttpServletRequest request)
  {
    super.reset(mapping,request);
    setUserName("");
    setPassword("");
  }
 
  /**
   * Validate all properties to their default values.
   * @param mapping The ActionMapping used to select this instance.
   * @param request The HTTP Request we are processing.
   * @return ActionErrors A list of all errors found.
   */
  public ActionErrors validate(ActionMapping mapping, HttpServletRequest request)
  {
     System.out.println("in validate");
     ActionErrors errors = new ActionErrors();
        if(getUserName() == null || getUserName().equals("")){
        errors.add(userName,new ActionError("errors.user"));
        }
        return errors;
  }

public void setUserName(String userName)
  {
    this.userName = userName;
  }

public String getUserName()
  {
    return userName;
  }

public void setPassword(String password)
  {
    this.password = password;
  }

public String getPassword()
  {
    return password;
  }
}

vidya sagar

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Posts: 580

posted 18 years ago

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Any help/clues would be appreciated.

In action class

return mapping.findForward("view");

this will makes you to remain in page.jsp itself.

This is clue,Now proceed

Merrill Higginson

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Posts: 4864

posted 18 years ago

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When the form is submitted, Struts first calls the reset() method on the form and then it populates the form using the setters you've provided. It should not be surprising, then, that if you redisplay the same page, the fields will be populated. If the page is being redisplayed because of an error, it is generally desirable to redisplay the data entered by the user. If that's not what you want, just do what you're doing and set the fields to blank or null before redisplaying the page.

Merrill
Consultant, Sima Solutions

Vamshi Jampala

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Posts: 40

posted 15 years ago

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Hi There I am having a similar kinda problem in Struts using the Checkboxes.

<c:forEach items="${facilityInformationBean.dCdMap}" var="mapEntry">
<html:multibox name="facilityInformationBean" property="renFuelTypeCheckBoxes" styleId="facilityInformationBean.activeFacility.renFuelTypeCheckBoxes" value="${mapEntry.key}"/><c: out value="${mapEntry.value}"/> (<c: out value="${mapEntry.key}"/>)
</c:forEach>

When i check atleast one of them it works perfectly fine, but when i uncheck everything and submit , it shows me the previous selection instead of uncheking everything.

So , I searched on google and found that one should overwrite the reset method in the action class.

How do i overwrite the reset method ?
@Override
public void reset(ActionMapping mapping, ServletRequest request) {
// TODO Auto-generated method stub
super.reset(mapping, request);
}

where in I can reset renFuelTypeCheckBoxes[] to empty one.

Can you please help me regarding this.

Thank you for your time

-Vamshi

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