how can v pass javascript values to jsp

[Srinath R]

i have a variable mynumber in javascript
that would be something like this
var mynumber = 10;
now i need to pass this variable into jsp variable say
int jspnumber;
how do i do this

[Peter den Haan]

Originally posted by srinath rammohan:
i have a variable mynumber in javascript
that would be something like this
var mynumber = 10;
now i need to pass this variable into jsp variable say
int jspnumber;
how do i do this

Javascript lives in the browser. On the other hand, Java Server Pages live in the server. The communication channel from client to server is the HTTP request. So you will have to incorporate your variable value in your request in one way or another, for example by embedding it in the request URL or using a cookie.
- Peter

[Srinath R]

so u mean to say that with out the query string i can not send variables from javascript to jsp.

[rgopi]

Hi,
WHat u need to do is store the variable value into a hidden field (on submit event say) and this hidden field value must be captured using request.getParameter() and assign to a Java variable.
Then u can assign this value to another Java variable .
Bye
Gopinath

Originally posted by srinath rammohan:
i have a variable mynumber in javascript
that would be something like this
var mynumber = 10;
now i need to pass this variable into jsp variable say
int jspnumber;
how do i do this

[Frank Carver]

"rgopi",
The Java Ranch has thousands of visitors every week, many with surprisingly similar names. To avoid confusion we have a naming convention, described at http://www.javaranch.com/name.jsp . We require names to have at least two words, separated by a space, and strongly recommend that you use your full real name. Please choose a new name which meets the requirements.
Thanks.

[Peter den Haan]

Originally posted by srinath rammohan:
so u mean to say that with out the query string i can not send variables from javascript to jsp.

They need not be in the query string if you use a POST request as opposed to a GET. In other words, a hidden variable in a form as mentioned above.
POST request parameters are sent in the request header. Cookies are also sent in the header and would be hidden as well.
Any of these methods would serve the purpose of sending your data to the server with the HTTP request.
- Peter

[Bob Moranski]

Hi, why only POST but not GET?

[Peter den Haan]

Originally posted by Bob Moranski:
Hi, why only POST but not GET?

I may not have been very clear. Parameters to a GET request are included in the request URL. If you want to hide these parameters, for example so that they won't end up in bookmarks, you must use either cookies or POST requests. Both of these pass parameters in the request header, not in the URL.
- Peter