GWT JsonpRequestBuilder Timeout issue
gwt, json
Solution
Maybe you should set the callback function explicitly via `setCallbackParam`, since you have `callback=insertAgenda` in your url - I presume that informs the server what should be the name of the callback function that wraps the JSON. Also, it's worth checking Firebug's console (or a similar tool for your browser) - even if GWT doesn't report any exceptions, Firebug still might.
PS: It's useful to use a tool like Firebug to see if the application does in fact receive the response from the server (that would mean that, for example, you do need the `setCallbackParam` call) or maybe there's something wrong on the server side (for whatever reason).
Problem
I am getting time out from using JsonpRequestBuilder. The entry point code goes like this: ``` // private static final String SERVER_URL = "http://localhost:8094/data/view/"; private static final String SERVER_URL = "http://www.google.com/calendar/feeds/developer-calendar@google.com/public/full?alt=json-in-script&callback=insertAgenda&orderby=starttime&max-results=15&singleevents=true&sortorder=ascending&futureevents=true"; private static final String SERVER_ERROR = "An error occurred while " + "attempting to contact the server. Please check your network " + "connection and try again."; /** * This is the entry point method. */ public void onModuleLoad() { JsonpRequestBuilder requestBuilder = new JsonpRequestBuilder(); // requestBuilder.setTimeout(10000); requestBuilder.requestObject(SERVER_URL, new Jazz10RequestCallback()); } class Jazz10RequestCallback implements AsyncCallback<Article> { @Override public void onFailure(Throwable caught) { Window.alert("Failed to send the message: " + caught.getMessage()); } @Override public void onSuccess(Article result) { // TODO Auto-generated method stub Window.alert(result.toString()); } ``` The article class is simply: ``` import com.google.gwt.core.client.JavaScriptObject; public class Article extends JavaScriptObject { protected Article() {}; } ``` The gwt page, however, always hit the onFailure() callback and show this alert: ``` Failed to send the message. Timeout while calling <url>. ``` Fail to see anything on the Eclipse plugin console. I tried the url and it works perfectly. Would appreciate any tip on debugging technique or suggestion