WCF + Ajax查詢

Question

我有ajax查詢問題，我嘗試使用wcf服務的後期查詢，這不起作用。請幫幫我。

我的服務，在Global.asax的

protected void Application_BeginRequest(object sender, EventArgs e) 
    { 

     EnableCrossDomainAjaxCall(); 
    } 

    private void EnableCrossDomainAjaxCall() 
    { 
     HttpContext.Current.Response.AddHeader("Access-Control-Allow-Origin", "*"); 

     if (HttpContext.Current.Request.HttpMethod == "OPTIONS") 
     { 
      HttpContext.Current.Response.AddHeader("Access-Control-Allow-Methods", "GET, POST"); 
      HttpContext.Current.Response.AddHeader("Access-Control-Allow-Headers", "Content-Type, Accept"); 
      HttpContext.Current.Response.AddHeader("Access-Control-Max-Age", "1728000"); 
      HttpContext.Current.Response.End(); 
     } 
    } 

服務合同

[ServiceContract] 
public interface IService1 
{ 
    [OperationContract()] 
    [WebInvoke(Method = "GET", UriTemplate = "/GetTestData", ResponseFormat = WebMessageFormat.Json, RequestFormat = WebMessageFormat.Json)] 
    List<Data.Test> GetTestData(); 

    [OperationContract] 
    [WebInvoke(Method = "POST", ResponseFormat = WebMessageFormat.Json, RequestFormat = WebMessageFormat.Json)] 
    void AddTestData(Data.Test value); 
} 

和SVC代碼

[AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Allowed)] 
public class Service1 : IService1 
{ 
    //static data for test 
    private static List<Data.Test> _data = new List<Data.Test>() { new Data.Test() { ID = 0, Name = "a" }, new Data.Test() { ID = 1, Name = "B" } }; 
    public List<Data.Test> GetTestData() 
    { 
     return _data; 
    } 

    public void AddTestData(Data.Test value) 
    { 
     _data.Add(value); 
    } 
} 

和我QUER下一個代碼Ÿ

function SendData() { 
    var Json = { 'id': $("#id").val(), 'name': $("#name").val() }; 
    $.ajax({ 
     type: "Post", 
     url: "http://localhost:10468/Service1.svc/AddTestData", 
     data: JSON.stringify(Json), 
     contentType: "application/json;charset-uf8", 
     dataType: "json", 
     success: function (msg) { 
     }, 
     error: function (err) { 
     } 
    }); 
} 

This project on github

whay它不工作，我不knowe。 P.S.對不起我的英語不好。

Answer 1

我解決了這個問題。需要在（Access-Control-Allow-Headers）中添加此參數（Origin，X-Requested-With，Content-Type，Accept） 。

protected void Application_BeginRequest(object sender, EventArgs e) 
    { 

     EnableCrossDomainAjaxCall(); 
    } 

    private void EnableCrossDomainAjaxCall() 
    { 
     HttpContext.Current.Response.AddHeader("Access-Control-Allow-Origin", "*"); 

     if (HttpContext.Current.Request.HttpMethod == "OPTIONS") 
     { 
      HttpContext.Current.Response.AddHeader("Access-Control-Allow-Methods", "GET, POST"); 
      HttpContext.Current.Response.AddHeader("Access-Control-Allow-Credentials", "true"); 
      HttpContext.Current.Response.AddHeader("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept"); 
      HttpContext.Current.Response.AddHeader("Access-Control-Max-Age", "1728000"); 
      HttpContext.Current.Response.End(); 
     } 
    }