Hi,
What is error you are getting in your browser' console. Press F12 to check it.
This is basically a binding problem.
How you have used this URL?
var oModel = new sap.ui.model.ODataModel("http://services.odata.org/OData/OData.svc");
here this may be cross origin related issue so use proxy for it.
like this.
var oModel = new sap.ui.model.ODataModel("proxy/http/services.odata.org/OData/OData.svc");
Use Appropriate path for binding.
This might be also the version issues of OData.
Check it.
Regards
Dhananjay