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 <[email protected]> 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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