Hi, I guess it is a common problem of web applications that they need to track how many times a user clicks a submit button. Assuming, that a click on the submit button executes an expensive stored procedure on a database server which may take 10 to 20 seconds, lots of users get impatient and click the submit button again and again.
I tracked this down and noticed, that every click executes the perform method of my Action class. In fact the server executes the procedure as many times as the user clicks the button. In the struts framework I found in the Action class the following methods: generateToken(), isTokenValid(), resetToken() and saveToken() Could anybody explain how and where to use these methods best to prevent an action from executing multiple times? I see the following processing inside the action.perform() method: 1) getParameters from the form 2) determine whether the form needs first to be delivered or the user input needs to be processed if user input needs to be processed continue with 3) otherwise deliver the form... 3) validate the parameters 4) process request 5) catch any errors and return them (if there are any) 6) deliver the results by forwarding to a view template In my opinion the steps 3 to 5 should be treated like a transaction and any further submits from the same session should not be processed. Could anybody please post an exemple how to solve that problem best? Many thanks Thomas -- To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> For additional commands, e-mail: <mailto:[EMAIL PROTECTED]>
