Problem of resubmisson in struts2

[biny panackal]

Hi all,
I am facing a problem of resubmition in struts. I had filled a page and submitted it. its is gone to my db and agin redirected to the same page . All data that i previously entered is filled in those fields. and if i am ginve refresh by right clicking the broswer the last trasaction agin happening and the page get submitted. HOw can i resolve this page

[Ankit Garg]

Well Struts 2 has the token interceptor to handle this. You just have to configure it into your action, and use <s:token/> tag in your form which gets submitted. I saw somewhere on the internet that you might need to add this type of result to your action

<result name="invalid.token">/bePatient.jsp</result>

[biny panackal]

Action to the page through with i am Listing data [blgCreateQuestionCategory page is used]
The same page also have an input box to enter the value and a submit button

	<action name="ListQuestionCategory" class="bean.CreateQuestionCategory" >
			
	     <result name="success">/blgCreateQuestionCategory.jsp</result>
	      <result name="error">/errorPage.jsp</result>						   <result name="input">/blgAskQust.jsp</result>						
	</action>	

Action to insert the value. after inserting i am rediectint to the same action that also redirect to same page
then i am refreshing the page the "InserQuestion" is happening aging

<action name="InserQuestion" class="bean.CreateQuestionCategory" method="InserQuestionCategory">
			<result name="success" type="chain">ListQuestionCategory</result>
			<result name="error">/errorPage.jsp</result>						<result name="input">/blgAskQust.jsp</result>				</action>	

[David Newton]

I can't really figure out what you're trying to say, but am quite suspicious of the action chaining. There's almost *never* a reason to do action chaining. If you're on the page that chained to the "ListQuestionCategory" action and refresh the page you'll re-submit--the chain isn't a new request.

You might want to look up the post-redirect-get (or whatever it's called) for why it happens and some ways to avoid it.

[biny panackal]

Wht i want to do is..
I had page which displays list of category. and i have a text box and a submit button to insert new category
i have an insert method inside my action class through wich i am insring the new entry. so on the submit button click i am calling that method. But i am filling the list that need to be show in the page is in exec method. So when i am calling the insert method and dircting to the same page it wont lits those which i inserted

[biny panackal]

Now i changed my code like this

Action

public String InserQuestionCategory(){
		AdminQuestionCommon QstManageObject= new AdminQuestionCommon();
//insertion
			QstManageObject.InsertQuestionCategory(qstCategory);
//filling
		    QstManageObject.fillqstCategoryList(qstCategoryList);
//making  the property nullfor category	
		qstCategory="";
 		return "success";
	}

Struts.xml

   <action name="InserQuestion" class="bean.CreateQuestionCategory" method="InserQuestionCategory">
	<result name="success">/blgCreateQuestionCategory.jsp</result>
	<result name="error">/errorPage.jsp</result>					
                 <result name="input">/blgAskQust.jsp</result>				
      </action>

Now the text box get cleared and my on refresh its agin getting submitted



JSP

<s:form >
<s:textfield name="qstCategory" label="Enter Question Category"/>
<s:submit action="InserQuestion"/>
</s:form>

<DIV style="border:1px solid white; float:left;">

<s:iterator status="stat" id="qstCategoryList" value="qstCategoryList"> <s:if test="%{(#stat.index%2)==0}"> </s:if> <s:else> </s:else> </s:iterator>

<s:property value="value"/>

<s:property value="value"/>

</DIV>

waiting for a solution

[David Newton]

And I'm telling you that you'll need to use the post-REDIRECT-get pattern to avoid the issue.

If the last request made is a redirect-get if you refresh you'll just get the same page--the one without the form submission.

Or you can use <s:token> and all that, but IMO the PRG pattern is simpler.