Hi Ramesh,
take a look at JsonpRequestBuilder class..
here you can find javadoc
http://google-web-toolkit.googlecode.com/svn/javadoc/2.0/com/google/gwt/jsonp/client/JsonpRequestBuilder.html
Regards,
Ale
--------------------------------------------------
From: "ramesh chiluveri" <[email protected]>
Sent: Tuesday, February 23, 2010 4:03 PM
To: "Google Web Toolkit" <[email protected]>
Subject: RPC Call Failed from other domain(cross domain) due to SOP
Hai All,
I am trying to develop an application ,which will going to make
server calls from different domains. I am facing problem with SOP . I
am not able to make a sever call from different doamin.
Below is the my code.
When i make rpc call with this code,it is always failing.(onFailure)
import java.util.ArrayList;
import java.util.HashMap;
import com.google.gwt.core.client.EntryPoint;
import com.google.gwt.core.client.GWT;
import com.google.gwt.core.client.JavaScriptObject;
import com.google.gwt.http.client.RequestBuilder;
import com.google.gwt.user.client.Window;
import com.google.gwt.user.client.rpc.AsyncCallback;
import com.google.gwt.user.client.ui.Button;
import com.google.gwt.user.client.ui.ClickListener;
import com.google.gwt.user.client.ui.RootPanel;
import com.google.gwt.user.client.ui.Widget;
/**
* Entry point classes define <code>onModuleLoad()</code>.
*/
public class invoxwidget implements EntryPoint,ClickListener{
public static String userSharedId = "";
protected HashMap callbacks = new HashMap();
protected HashMap scriptTags = new HashMap();
protected int curIndex = 0;
public Button but = null;
public void onModuleLoad() {
String serverURL = GWT.getModuleBaseURL()+"?callback=";
String callbackName = reserveCallback();
setup(this, callbackName);
addScript(callbackName, serverURL + callbackName);
}
public String reserveCallback()
{
while (true)
{
if (!callbacks.containsKey(new Integer(curIndex)))
{
callbacks.put(new Integer(curIndex), null);
return "__gwt_callback" + curIndex++;
}
}
}
/**
* <p>Adds the JSONP script to our widget so we can make XSS
requests baby</p>
*
* @param uniqueId The unique id of the call
* @param url The URL of our Request
*/
public native void addScript(String id, String url)
/*-{
var elem = document.createElement("script");
elem.setAttribute("language", "JavaScript");
elem.setAttribute("src", url);
elem.setAttribute("id", id);
document.getElementsByTagName("body")[0].appendChild(elem);
}-*/;
public void handle(JavaScriptObject jso)
{
if( jso != null )
{
HashMap details = new HashMap();
details.put("userSharedID",userSharedId);
Window.alert("before ContactServer "+userSharedId);
ContactServer.Util.getInstance().getBusinessName(details,new
AsyncCallback(){
public void onFailure(Throwable arg0) {
Window.alert("In onFailure");
}
public void onSuccess(Object arg0) {
Window.alert("In onSuccess");
}
});
/**
*
* <p>Sets up our Javascript cross site JSON call</p>
*
* @param model Handles our Cross Site JSON call
* @param callback
*/
public native static void setup(invoxwidget inv, String callback)
/*-{
$wnd.__gwt_callback0 = function(someData)
{
alert("inside setup");
[email protected]::handle(Lcom/
google/gwt/core/client/JavaScriptObject;)(someData);
}
}-*/;
}
I am not able to find what is wrong??
Please help me
Thanks
Ramesh
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