GWT RequestBuilder - Cross Site Requests
gwt, httprequest, java
Solution
Actually we can make Cross Site Requests from GWT RequestBuilder if we can set in Servlet Response Header
Response.setHeader("Access-Control-Allow-Origin","http://myhttpserver");
It's working Cool , if anyone need the GWT Project and Python Servlet, please do let me know, i can upload the files.
GWT Client Code : https://github.com/manikandaraj/MLabs/tree/master/GWT/GWTClient
Problem
I'm trying to make Cross Site Request using GWT Request builder, which i couldn't get it to work yet. As you can see, this is much of a Sample GWT Project and i have gone through https://developers.google.com/web-toolkit/doc/latest/tutorial/Xsite . But still i'm missing something. I'm Posting the code here. What am i missing ..? ``` package com.gwt.reqbuilder.client; import com.google.gwt.core.client.EntryPoint; import com.google.gwt.http.client.Request; import com.google.gwt.http.client.RequestBuilder; import com.google.gwt.http.client.RequestCallback; import com.google.gwt.http.client.RequestException; import com.google.gwt.http.client.Response; import com.google.gwt.http.client.URL; import com.google.gwt.user.client.Window; public class GWTRequestBuilder implements EntryPoint { private static final String JSON_URL = "http://localhost:8000/?q=ABC&callback=callback125"; public void onModuleLoad() { GWTPOSTHTTP(); } public void GWTPOSTHTTP() { String postUrl="http://localhost:8000"; String requestData="q=ABC&callback=callback125"; RequestBuilder builder = new RequestBuilder(RequestBuilder.POST, postUrl); try { builder.sendRequest(requestData.toString(), new RequestCallback() { public void onError(Request request, Throwable e) { Window.alert(e.getMessage()); } public void onResponseReceived(Request request, Response response) { if (200 == response.getStatusCode()) { Window.alert(response.getText()); } else { Window.alert("Received HTTP status code other than 200 : "+ response.getStatusText()); } } }); } catch (RequestException e) { // Couldn't connect to server Window.alert(e.getMessage()); } } } ```