AJAX调用Web服务

Question

The following article on msdn provides the ASP.NET AJAX solution of calling web service with AJAX... http://msdn.microsoft.com/en-us/magazine/cc163499.aspx like

<asp:ScriptManager ID="_scriptManager" runat="server">
  <Services>
    <asp:ServiceReference Path="StockQuoteService.asmx" />
  </Services>
</asp:ScriptManager>

And then to use the class name directly in Jscript. But when I uploaded the service on other domain and tried to do the same, it wouldn't work. Is there no way I can do it or am I missing something? Thanks in advance...

Answer 1

Due to the same origin policy restriction this is not possible. You cannot perform cross domain AJAX calls. One possible workaround is to use JSONP but you will need to have a web service which supports it.

Answer 2

You might like to give this a whirl if you are able to use Jquery:

http://jquery-howto.blogspot.com/2009/04/cross-domain-ajax-querying-with-jquery.html

Answer 3

请安装Fiddler2并监控您的请求/响应，这对解决ajax和Web服务问题非常有帮助。