I am having some problems with what should be a rather simple task. I simply need a JSON array with a single JSON object within it to be posted to my webservice. The entire URL request needs to be formatted like this:

http://www.myserver.com/myservice.php?location_data=[{"key1":"val1","key2":"val2"....}]

I cannot for the life of me figure out how to append the 'location_data' bit using HttpPost. Here is a code snippet to demonstrate the HTTP connection method I am using:

    HttpClient hClient = new DefaultHttpClient();
    HttpPost hPost = new HttpPost(url);

    try {
        hPost.setEntity(new StringEntity(string));
        hPost.setHeader("Accept", "application/json");
        hPost.setHeader("Content-type", "application/json");

        //execute request
        HttpResponse response = (HttpResponse) hClient.execute(hPost);
        HttpEntity entity = response.getEntity();

I don't have any syntax errors, and my code is accessing the server fine, just not in the exact format the server needs. Any help on how to format my request to look like how I need it would be greatly appreciated!