Sending an array with ajax to Java on AppEngine

I am currently using Java on AppEngine.

I have an array of strings in javascript. I would like to send this array to the server using jQuery and the ajax() function.

How can I send the array so that on the Java server side I will be able to convert it to a List<String> instance?

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EDIT:

In th开发者_JAVA百科e client side I've used this code (jQuery):

      var namesArray = []
      namesArray[0] = "a"
      namesArray[1] = "b"
      $.ajax({
          type: "POST",
          url: "/ajax/someURL",
          data: {
              namesArray: namesArray
          }
      });

When I debug the server side I can see that HttpServletRequest instance _parameters is:

{namesArray[]=[a,b]}

But when I use req.getParameter("namesArray[]") it returns me the string "a"... Like stated above, my goal is to get a List of strings (List<String>) containing both "a" and "b".

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I'm not too sure about the Java side of things, but if you want to pass the javascript array to the server as an array encoded in a POST variable, you could do:

var myarray = ['Element 1', 'Element 2', 'Element 3'] ;
var dataobject = {
    postvar: myarray
} ;
$.ajax({
    url: 'http://url.of/your/server/code',
    data: dataobject,
    type: 'POST'
}) ;

The POST variable in this case would be 'postvar'.