validate two passwords in struts

[pingkan paula]

I'm new to struts and assigned to web project using struts and ibatis.
I want to validate two input where user must put their new passwords twice, the validation used to check whether the two new password are the same.
Anyone has a clue from where i should start? do i have to use validator framework?
Any feedbacks will be fully appreciated

[Junilu Lacar]

Why not keep it simple and use the ActionForm validate() method. Another alternative is to use JavaScript.

Closing this here and moving to Struts.

[Henry Lowell]

If using Struts 1.2.something (basically when they added validwhen) in the validation.xml for your form:

<field 
   property="password"
   depends="required">
<arg key="global.password.label"/>
</field>
<field
   property="password2"
   depends="validwhen">
<msg name="validwhen" key="adduser.error.password.mismatch"/>
<var>
   <var-name>test</var-name>
   <var-value>(password == *this*)</var-value>
</var>
</field>

[pingkan paula]

I've tried using manual validation, but it returned NullPointerException errors, here is the validation code

 public  ActionErrors validate(ActionMapping mapping,HttpServletRequest request){
          ActionErrors errs=super.validate(mapping,request);
        if(errs==null)errs=new ActionErrors();
        if(!posisi_password_baru1.equals(posisi_password_baru2)){
            errs.add("passwordbaru_Error",new ActionMessage("password baru yg dimasukan harus sama!"));
        }
        ActionErrors errors = super.validate(mapping, request);
// c
        if (errs==null) errors = new ActionErrors();
 
        if (errs.isEmpty()) return null;
        return errors;   

[Brent Sterling]

I am not sure why you are calling super.validate twice. If posisi_password_baru1 is null, then your code will throw a NullPointerException. You may want to add a check in your code. If you have a "required" check in your xml validation, then you may want to bracket your custom validation code with an " if (errs.isEmpty())" check.

- Brent

[jaisai vijay]

Hello Henry Lowell,

I am using struts 1.2 and I have tried with the example you provide.

My code is like the following

I have three fields
currentpassword
newpassword
confirmpassword

Now I need to compare with new and confirpassword

I have written code like

 		<form name="passwordMaintenanceForm">
			<field property="currentpassword" depends="required">
				<arg key="PasswordMaintenanceForm.currentpassword"></arg>
			</field>
			
			<field property="newpassword" depends="required,validwhen"> 
			 <arg key="PasswordMaintenanceForm.newpassword"/> 
			 <msg name="validwhen" key="errors.twofields"/> 
			 <var> 
			 <var-name>secondProperty</var-name> 
			 <var-value>(*this* == confirmpassword)</var-value> 
			 </var>
			  </field>

		</form>   

I did not get any pop up when those two are not same. What would be the mistake in that?

Thanks for your help in advance.