Question

我正在创建一个对WCF服务的简单Javascript调用，并且在脚本调用该服务之后，它将返回该调用的错误。通过Fiddler调用WCF服务虽然给了我正确的结果。所以我再次尝试运行Fiddler运行脚本来捕获数据包。似乎脚本没有将结果识别为有效结果，从而引发错误，因为Fiddler再次捕获了正确的结果。

一些参考文献：

IWorkflowService：

[ServiceContract]
public interface IWorkflowService
{

    [OperationContract]
    [WebGet(UriTemplate="GetWorkflowDetails?instanceId={instanceId}", ResponseFormat = WebMessageFormat.Json)]
    WorkflowInstance GetWorkflowDetails(string instanceId);

}

[DataContract]
public class WorkflowInstance
{
    //properties
    [DataMember]
    public string Result {get; set;}
}

WorkflowService.cs：

public class WorkflowService : IWorkflowService
{
    public WorkflowInstance GetWorkflowDetails(string instanceId)
    {
        WorkflowInstance instance = new WorkflowInstance() { Result = instanceId };

        return instance;
    }
}

aspx页面上的脚本：

var args = getQueryVariable("instanceId");
var url = "http://localhost:56091/WorkflowService.svc/GetWorkflowDetails?instanceId="+args;
//alert(url);
$("textArea").append(url);

$.ajax({
    type: "GET",
    url: url,
    success: function (result) {
        alert(result);
    },
    error: function (error) {
        alert("Error: " + error.responseText);
    }
});

Fiddler的原始结果：

HTTP/1.1 200 OK
Server: ASP.NET Development Server/10.0.0.0
Date: Wed, 10 Sep 2014 02:15:00 GMT
X-AspNet-Version: 4.0.30319
Content-Length: 49
Cache-Control: private
Content-Type: application/json; charset=utf-8
Connection: Close

{"Result":"9b3f4bfb-27f0-4570-82ba-3719109bab76"}

Answer 1

通过将数据类型写为application / json并尝试将json结果放入var res = result来尝试此操作喜欢

var res=result
alert(res);

WCF返回结果但Javascript给出错误

1 个答案: