Thanks a lot My Friends
it is easy way
thanks for your support
On Jul 5, 9:33 pm, André Moraes <andr...@gmail.com> wrote:
> The response comes async.
>
> When the response from the server arrives at the client the method
> onResponseReceived in the RequestCallback object is called, if an
> error hapens the the onErrormethod is called.
>
> The RequestCallback object is the second parameter in the sendRequest
> function call.
>
> public void onResponseReceived(Request
> request, Response response)
> {
> if (response.getStatusCode()
> == 200 || response.getStatusCode()
> == 304)
> {
> JavaScriptObject
> responseData =
> JsonHelper.stringToJso(response.getText()).cast());
> // use the response
> }
> else
> {
> // invalid response
> }
> }
> @Override
> public void onError(Request request,
> Throwable exception) {
> // error on the resquest
> }
> });
>
> On 5 jul, 15:01, Ahmed Shoeib <ahmedelsayed.sho...@gmail.com> wrote:
>
> > you told me how to send request from client to server
>
> > now i want how yo get data from server to use it in client
>
> > and the data in json
>
> > On Jul 5, 8:12 pm, André Moraes <andr...@gmail.com> wrote:
>
> > > This code is quite simple
>
> > > The line:
>
> > > re = rb.sendRequest("jsonrpc-call=" + JsonHelper.jsoToString(call),
> > > new RequestCallback()
>
> > > prepare a AJAX call to the server and make your javascript object to a
> > > string using JsonHelper.jsoToString.
> > > In ther server the json-string will be accessible by the parameter
> > > "jsonrpc-call".
>
> > > The line:
>
> > > if (response.getStatusCode()
> > > == 200 || response.getStatusCode()
> > > == 304)
> > > {
> > > JavaScriptObject
> > > responseData =
> > > JsonHelper.stringToJso(response.getText()).cast());
> > > // use the response
> > > }
>
> > > get the response wrote by the server and make i availabe as a
> > > JavaScriptObject.
>
> > > You can use the JSONObject class to populate and read a
> > > JavaScriptObject.
>
> > > You can read more about JSON + GWT at:
>
> > >http://code.google.com/intl/webtoolkit/webtoolkit/doc/latest/DevGuide...
> > > andhttp://code.google.com/intl/webtoolkit/webtoolkit/articles/using_gwt_...
> > > On 5 jul, 12:50, Ahmed Shoeib <ahmedelsayed.sho...@gmail.com> wrote:
>
> > > > i want a simple example to describe it
> > > > cause i need it as soon as possible
>
> > > > On Jul 5, 6:18 pm, André Moraes <andr...@gmail.com> wrote:
>
> > > > > re = rb.sendRequest("jsonrpc-call=" +
> > > > > JsonHelper.jsoToString(call),
> > > > > new RequestCallback() {
>
> > > > > @Override
> > > > > public void
> > > > > onResponseReceived(Request request, Response response)
> > > > > {
> > > > > if (response.getStatusCode()
> > > > > == 200 || response.getStatusCode()
> > > > > == 304)
> > > > > {
> > > > > JavaScriptObject
> > > > > responseData =
> > > > > JsonHelper.stringToJso(response.getText()).cast());
> > > > > // use the response
> > > > > }
> > > > > else
> > > > > {
> > > > > // invalid response
> > > > > }
> > > > > }
>
> > > > > @Override
> > > > > public void onError(Request request,
> > > > > Throwable exception) {
> > > > > // error on the resquest
> > > > > }
> > > > > });
>
> > > > > public class JsonHelper {
>
> > > > > public static String jsoToString(JavaScriptObject jso) {
> > > > > if (isJsonLibraryDefined()) {
> > > > > return _jsoToString(jso);
> > > > > } else {
> > > > > return new JSONObject(jso).toString();
> > > > > }
> > > > > }
>
> > > > > public static JavaScriptObject stringToJso(String value) {
> > > > > if (isJsonLibraryDefined()) {
> > > > > return _stringToJso(value);
> > > > > } else {
> > > > > return _stringToJsoEval(value);
> > > > > }
> > > > > }
>
> > > > > public static native String _jsoToString(JavaScriptObject
> > > > > jso) /*-{
> > > > > return JSON.stringify(jso);
> > > > > }-*/;
>
> > > > > public static native JavaScriptObject _stringToJso(String
> > > > > string) /*-
> > > > > {
> > > > > return JSON.parse(string);
> > > > > }-*/;
>
> > > > > public static native JavaScriptObject _stringToJsoEval(String
> > > > > string) /*-{
> > > > > return eval("(" + string + ")");
> > > > > }-*/;
>
> > > > > public static native boolean isJsonLibraryDefined() /*-{
> > > > > return typeof(JSON) != 'undefined'
> > > > > && typeof(JSON.parse) != 'undefined'
> > > > > && typeof(JSON.stringify) != 'undefined';
> > > > > }-*/;
>
> > > > > }
>
> > > > > The JsonHelper class handle the conversion to and from JSON.
>
> > > > > If possible use the json.org javascript library that implements the
> > > > > functions JSON.parse / JSON.stringify
>
> > > > > I am currently writing a project that encapsulates that library and
> > > > > make it more easier to use than this JsonHelper class.
>
> > > > > When i release it in google-code I let you know.
>
> > > > > Hope it helps.
>
> > > > > On 5 jul, 09:01, Ahmed Shoeib <ahmedelsayed.sho...@gmail.com> wrote:
>
> > > > > > Dear Friends ,
>
> > > > > > i face a problem when trying to send and receive json object between
> > > > > > client and server in GWT application
>
> > > > > > so i want a simple example that show me how to do this
>
> > > > > > Thanks,
> > > > > > ahmed shoeib
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