asp.net - 使用 jQuery 通过 GET 方法调用 ASP.NET Web 服务函数

Question

我尝试使用 jQuery 通过 GET 方法调用 Web 服务函数，但遇到问题。这是一个网络服务代码:

[WebService(Namespace = "http://something.com/samples")]
[ScriptService]
[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
public class TestWebService  : System.Web.Services.WebService {
    [WebMethod]
    public string Test2()
    {
        string result = null;

    try
        {
            result = "{'result':'success', 'datetime':'" + DateTime.Now.ToString() + "'";
        }
        catch (Exception ex)
        {
            result = "Something wrong happened";
        }

        return result;
    }

}

这就是我调用该函数的方式:

$.ajax({ type: "GET",
         url: "http://localhost/testwebsite/TestWebService.asmx/Test2",
         data: "{}",
         contentType: "application/json",
         dataType: "json",
         error: function (xhr, status, error) {
             alert(xhr.responseText);
         },
         success: function (msg) {
             alert('Call was successful!');
         }
     });

方法调用成功，但结果字符串被XML标签覆盖，如下所示:

<string>
{'result':'success', 'datetime':'4/26/2010 12:11:18 PM'
</string>

因此我收到错误(调用错误处理程序)。有人知道对此可以做什么吗？

Answer 1

Enable ASP.NET ASMX web service for HTTP POST / GET requests

[WebMethod]
[ScriptMethod(UseHttpGet = true)]
public string Test2()
{
   [...]
}