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Displaying a message on the Browser till processing completes

Mickey Smith
Ranch Hand

Joined: Jun 26, 2006
Posts: 30
Hi All,

In my application, I am processing a large file, wherein the system fetches the data from the file and updates it in the database. The problem is that this processing takes a lot of time (1 - 1.5 hours). This time cannot be reduced, hence I want the user to see a message for ex: "Please Wait ... Processing the Data...", But the browser times out. Hence, I want a solution whereby I can display that message to the user till the processing completes and then proceed with the next action.

I am currently using struts for the same.

Thanks
Mickey Smith.
RoshaniG Gopal
Ranch Hand

Joined: May 15, 2006
Posts: 180
Hi Mickey

You may use Javascript for the same.
<html:submit value="Search" styleClass="buttons" onkklick="javascript:this.value=Please Wait ... Processing the Data...';this.disabled=true;document.searchForm.submit();"/>


Regards,<br />Roshani
Mickey Smith
Ranch Hand

Joined: Jun 26, 2006
Posts: 30
Hi Roshani,

I got your solution but my problem is a bit different. Can i have something whereby i can show that message before browser timeout occurs ?

Thanks,
Mickey
Merrill Higginson
Ranch Hand

Joined: Feb 15, 2005
Posts: 4864
This link has an example of one way to do it. I've adapted it for Struts by putting some of the code in an Action class that the authors put in a JSP, and found that it works just fine and solves the browser timeout problem. If you'd like to look at other solutions, just Google "JSP please wait message".
[ February 28, 2007: Message edited by: Merrill Higginson ]

Merrill
Consultant, Sima Solutions
Brent Sterling
Ranch Hand

Joined: Feb 08, 2006
Posts: 948
I would question a design that displayed a "please wait" message for over an hour. Will the users really wait for that time period? What if they close their browser? Will they have a way to know if the processes finished?

I would suggest you look into a more elaborate background processing model where the user can submit a task and then a background process will process the task. Probably the easiest way of submitting the job and providing feedback to the user is to use a database table. Have the background process periodically update the task's status in the database and have the status page read the status from the database.

- Brent
 
I agree. Here's the link: http://aspose.com/file-tools
 
subject: Displaying a message on the Browser till processing completes
 
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