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problem with calling a servlet from a javascript using window.location

I am calling a servlet from a javascript using the following code:

pageUrl = "/servlet/Main?ReportID=ADD&year=" + year1 + "&field2=" + field2 (etc, etc, etc)

location.replace('" "');
window.location = pageUrl;
return true:

i use this code all the time, but this time I am sending TONS of data, and it errors on the window.location line. I am pretty sure it's because of the amount of data that I'm sending via the url. I tested by limiting the amount of data and it works, but when I send all the data that is needed, it freaks out
with a javascript error that can't be captured and gives me a "page not found" error with the following in the url:

/servlet/"%20"

when it should be /servlet/Main?ReportID=ADD&year=2004&field2=field2 (etc, etc, etc)

Is there a limit to the amount of characters in a url? And if so, how can I pass all my data to the servlet using a javascript? Can I use putsession commands in a servlet?

HELP!

donz4

Asked: 2004-08-31

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1 Solution

LVL 19

ramazanyichCommented: 2004-08-31

the length of query string can vary depending on the server. Some servers end reading it from 1024 byte. In general it is not recommended to use parameters in URL if it will be a big one. Better use hidden form with POST method and filling hidden values by javascript and calling form.submit() function from javascript.
So in your case it javascript can be:
document.hh.ReportID.value="ADD";
document.hh.year.value="2004";
document.hh.field2.value="field2";
//...
document.hh.submit();

and HTML:
<form name="hh" method="POST" action="/servlet/Mail">
<input type="hidden" name="ReportID"/>
<input type="hidden" name="year"/>
<input type="hidden" name="field2"/>


</form>

LVL 11

sompol_kiatkamolchaiCommented: 2004-08-31

Please check this first.

pageUrl = "/servlet/Main?ReportID=ADD&year=" + year1 + "&field2=" + field2 (etc, etc, etc)

I think there is one space in

"/servlet/ Main?......
^
There is one space here!

LVL 11

raj3060Commented: 2004-09-02

If it is working fine with less data, then there nothing wrong with the code. I would say send data in array. That will be faster and easier.
--Raj

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