Passing an array from javascript to servlet

Question

I have a number of check boxes on my JSP page. I need to pass ids of all the check boxes to my servlet so that i can perform some database operations. I thought that i can create an array in my javascript function placed in a different .js file which would store these ids and then pass the array to my servlet. But i m not able to figure out how to apply this concept.

Can you add a little more detail about what you have tried so far? If possible, post a small code sample. The answer will depend, among other things, on whether your checkbox values are to be submitted as part of a form or are being passed via an AJAX call, so be sure to address that. — dgvid
– dgvid, Commented Jul 18, 2012 at 13:53
i havn't really worked on this problem in my project. But i have used ajax calls in rest of the functions. i am confused about this. what should i pass on as data in the ajax call — dr_mak
– dr_mak, Commented Jul 18, 2012 at 14:01

Quentin · Accepted Answer · 2012-07-18 13:53:09Z

2

This type of problem is normally approached with

  <input type="checkbox" name="foo" value="1">
  <input type="checkbox" name="foo" value="2">
  <input type="checkbox" name="foo" value="3">
  <input type="checkbox" name="foo" value="4">

And then

String values[]=req.getParameterValues("foo");

Which gives you an array of all the checked values.

answered Jul 18, 2012 at 13:53

Quentin

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5 Comments

dr_mak Over a year ago

Wat do i pass as data in my request from the ajax function in js.

Quentin Over a year ago

You just have multiple key/value pairs in the data with the same key name.

dr_mak Over a year ago

Can u tell me the code to be used in ajax call. I m a beginner.

Quentin Over a year ago

Writing a complete guide on how to build an Ajax request is out of scope for StackOverflow.

dr_mak Over a year ago

thanks... i did it this way only... and sorry for asking the code.

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