Question

I found this question on setting the response type to json from a jsp but I’m in need of setting the response type to jsonp for cross-domain access. Would it still be this:

response.setContentType("application/javascript");

and just wrapping the response from the jsp in callbackfunction( + content + ) or is there something more that needs to be done?

Answer 1

I recently had to do this. In the server side I had something like so:

string callbackName = queryMap['callback']; //jquery will pass in some name in our .getJSON call below
string jsonData = getJsonData();
string jsonp = callbackName + "(" + jsonData + ")";

response.SetContentType('application/javascript');
response.Send( jsonp );

And in the javascript it was something like so:

var url = getUrl() + "?callback=?";
$.getJSON(url,function(onSuccessData){ alert(onSuccessData); });