Asp.net 使用JQuery调用WCF服务时WCF服务调用失败

我正在使用asp.net。我已经在C#中创建了一个WCF服务，并托管在IIS服务器上。我在asp.net web应用程序中使用JQuery调用此服务。当我使用JQuery调用该服务时，它将返回error函数，并且在alert中有一条空消息

呼叫服务表单.aspx页面

<script src="Script/jquery-1.10.2.min.js" type="text/javascript"></script>

<script type="text/javascript" language="javascript">
function callService()
{
    var value = 10;
    $.ajax({
        type: "POST",
        url: "http://localhost/IISWCF/Service1.svc/getdata",
        contentType: "application/json; charset=utf-8",
        data: '{"value": "' + value + '"}',
        dataType: "json",
        processdata: true, //True or False
        error: function(XMLHttpRequest, textStatus, errorThrown) {
            alert("error: " + errorThrown);
        },
        success: function(msg) {
            alert(msg.d);
        }
    });
}
</script>

<script type="text/javascript" language="javascript">
$(document).ready(function(){
    callService();
})
</script>

IService1.cs文件

namespace WcfService1
{
    [ServiceContract]
    public interface IService1
    {

        [OperationContract]
        [WebInvoke(Method = "GET", ResponseFormat = WebMessageFormat.Json)]
        string GetData(int value);
    }
}

WCF Web.config文件

    <system.serviceModel>
  <behaviors>
    <serviceBehaviors>
      <behavior name="WcfService1.Service1Behavior">
        <serviceMetadata httpGetEnabled="true"/>
        <serviceDebug includeExceptionDetailInFaults="false"/>
      </behavior>
    </serviceBehaviors>
    <endpointBehaviors>
      <behavior name="EndpBehavior">
        <webHttp/>
      </behavior>
    </endpointBehaviors>
  </behaviors>
  <services>
    <service name="WcfService1.Service1" behaviorConfiguration="WcfService1.Service1Behavior">
      <endpoint behaviorConfiguration="EndpBehavior" address="" binding="webHttpBinding" contract="WcfService1.IService1">
        <identity>
          <dns value="localhost"/>
        </identity>
      </endpoint>
      <endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange"/>
    </service>
  </services>
  <serviceHostingEnvironment aspNetCompatibilityEnabled="true"   />
</system.serviceModel>

---

请帮助我解决此问题。

我添加了一些伪代码，可能也没有使用一些方法。但是您可以使用虚拟加倍方法测试代码。此外，您已经定义了endpointbehavior，但如果使用了它，则应将其应用于endpoint及其重要对象。参考我下面的例子

// NOTE: You can use the "Rename" command on the "Refactor" menu to change the     interface name "IService1" in both code and config file together.
[ServiceContract]
public interface ICalculatorService
{

    [OperationContract]
    [WebGet(ResponseFormat = WebMessageFormat.Json, UriTemplate = "/DoubleUp/{val}")]
    int DoubleUp(string val);

    [OperationContract]
    [WebGet(ResponseFormat=WebMessageFormat.Json, UriTemplate="/{value}/{value1}")]
    int AddValues(string value, string value1);

    [OperationContract]
    [WebGet(ResponseFormat = WebMessageFormat.Json)]
    string ConcatenateString(string stringArray);
}  


public class CalculationService : ICalculatorService
{

    public int DoubleUp(string val)
    {
        return 2 * Convert.ToInt32(val);
    }

    public int AddValues(string value, string value1)
    {
        return Convert.ToInt32(value) + Convert.ToInt32(value1);
    }

    public string ConcatenateString(string stringArray)
    {
        string returnString = string.Empty;
        returnString += stringArray;           

        return returnString;
    }
}

<system.serviceModel>
<bindings>
  <webHttpBinding>
    <binding name="JSONBinding"></binding>
  </webHttpBinding>
  <basicHttpBinding>
    <binding name="basicHTTP">
      <security mode="None">

      </security>
    </binding>
  </basicHttpBinding>
</bindings>
<behaviors>
  <serviceBehaviors>
    <behavior name="basicBehavior">
      <!-- To avoid disclosing metadata information, set the values below to false before deployment -->
      <serviceMetadata httpGetEnabled="true" httpsGetEnabled="true"/>
      <!-- To receive exception details in faults for debugging purposes, set the value below to true.  Set to false before deployment to avoid disclosing exception information -->
      <serviceDebug includeExceptionDetailInFaults="false"/>
    </behavior>
  </serviceBehaviors>
  <endpointBehaviors>
    <behavior name="JSON">
      <webHttp/>
    </behavior>
  </endpointBehaviors>
</behaviors>
<services>
<service name="RestWCFService.CalculationService" behaviorConfiguration="basicBehavior">
    <endpoint address="basic" binding="basicHttpBinding" contract="RestWCFService.ICalculatorService" bindingName ="basicHTTP"></endpoint>
    <endpoint behaviorConfiguration="JSON" binding="webHttpBinding" bindingConfiguration="JSONBinding" contract="RestWCFService.ICalculatorService" name="JSONService"></endpoint>
  </service>      
</services>

<protocolMapping>
    <add binding="basicHttpBinding" scheme="http"/>
    <add binding="basicHttpsBinding" scheme="https" />
</protocolMapping>    
<serviceHostingEnvironment aspNetCompatibilityEnabled="true" multipleSiteBindingsEnabled="true" />
</system.serviceModel>



 /* This is the code for accessing the service via REST call
        WebClient client = new WebClient();
        string s = client.DownloadString("http://localhost/RestWCFService/CalculationService.svc/DoubleUp/3");
        Console.WriteLine("Response returned is:" + s);
        */

        /*This is the section to access service via Proxy */

        ChannelFactory<RestWCFService.ICalculatorService> client = new ChannelFactory<RestWCFService.ICalculatorService>();

        client.Endpoint.Address = new EndpointAddress("http://localhost/RestWCFService/CalculationService.svc/basic");
        client.Endpoint.Binding = new BasicHttpBinding();
        RestWCFService.ICalculatorService service = client.CreateChannel();

        int val = service.DoubleUp("2");
        ((IClientChannel)service).Close();
        client.Close();

        Console.WriteLine("Values returned is:" + val.ToString());

        /*Programmatic access ends here */

        Console.ReadLine();

如果您的服务工作正常，那么请尝试此JS，因为您的JS不适合此服务请求

<script type="text/javascript" language="javascript">
function callService() {
    var value = 10;
    $.ajax({
        type: "GET",
        url: "http://localhost/IISWCF/Service1.svc/GetData?value=1",
        contentType: "application/json; charset=utf-8",
        data: '{"value": "' + value + '"}',
        dataType: "text",
        processdata: false, //True or False
        statusCode: {
            404: function () {
                alert("page not found");
            },
            200: function () {
                alert('HTTP HIT WAS Good.');
            },
        },
        error: function (XMLHttpRequest, textStatus, errorThrown) {
            alert("error: " + errorThrown);
        },
        success: function (msg) {
            alert(msg);
        }
    });
}

函数callService（）{
var值=10；
$.ajax({
键入：“获取”，
url:“http://localhost/IISWCF/Service1.svc/GetData?value=1",
contentType:“应用程序/json；字符集=utf-8”，
数据：'{“值”：“'+value+'“}”，
数据类型：“文本”，
processdata:false，//True或false
状态代码：{
404：函数（）{
警报（“未找到页面”）；
},
200：函数（）{
警报（'HTTP命中率良好'）；
},
},
错误：函数（XMLHttpRequest、textStatus、errorshown）{
警报（“错误：+错误抛出”）；
},
成功：功能（msg）{
警报（msg）；
}
});
}

---

尝试使用本文中提到的说明，因为您可能需要JSON作为响应。似乎缺少WebGet和WebInvoke。我已经按照链接中提到的步骤进行了操作，问题没有得到解决。我用新问题编辑了我的问题。您能帮助我吗？将端点绑定更改为webHttpBinding我已将端点绑定更改为webHttpBinding，但问题仍未解决。任何帮助。当我在DoubleUp中添加整数作为参数时，它要求我转换为字符串。因此，请尝试通过直接点击URL来执行服务方法，然后进行Ajax测试。如果它直接工作，则Ajax调用存在一些问题。当我使用方法运行服务时，我收到错误，因为“由于EndpointDispatcher上的AddressFilter不匹配，收件人无法处理收件人为“”的消息。请检查发送方和收件方的EndpointAddresses是否一致。”但是如果我将端点webHttpBinding更改为wsbHttpBinding，那么页面将显示为空白。你能帮我一下吗？地址不匹配。URl中有一个不匹配的地方，比如说你在域中，正在获取，并且你在服务中指定了localhost。您可以通过添加[ServiceBehavior（AddressFilterMode=AddressFilterMode.Any）]来删除它，但这并不是一个适用于所有请求的好做法。我已经添加了[ServiceBehavior（AddressFilterMode=AddressFilterMode.Any）]，并将错误作为由于EndpointDispatcher上的ContractFilter不匹配，无法在接收方处理具有操作“”的消息。这可能是因为合同不匹配（发送方和接收方之间的操作不匹配）或发送方和接收方之间的绑定/安全不匹配。检查发送方和接收方是否具有相同的合同和相同的绑定（包括安全要求，例如消息、传输、无）。“需要帮助吗？您的服务是否直接起作用？请使用我为您的服务粘贴的代码。如果无法访问该服务，请使用最新的代码库编辑您的问题。是的，链接工作正常，我正在获取输出。但我的jqeruy电话不起作用。我用新的问题更新了我的问题。另外，我在web.config文件中得到了标记的错误，所以我已经删除了它。任何帮助。

[ServiceContract]
public interface IService1
{

    [OperationContract]
    [WebInvoke(Method = "GET", ResponseFormat = WebMessageFormat.Json, UriTemplate="/GetData?value={value}")]
    string GetData(int value);
}

[AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Allowed)]
public class Service1 : IService1
{
    public string GetData(int value)
    {
        return string.Format("You entered: {0}", value);
    }
}

 <system.serviceModel>    
  <behaviors>
    <serviceBehaviors>
      <behavior name="WcfService1.Service1Behavior">
        <serviceMetadata httpGetEnabled="true"/>
        <serviceDebug includeExceptionDetailInFaults="false"/>
      </behavior>
    </serviceBehaviors>
    <endpointBehaviors>
      <behavior name="EndpBehavior">
        <webHttp/>
      </behavior>
    </endpointBehaviors>
  </behaviors>
  <services>
    <service name="WcfService1.Service1" behaviorConfiguration="WcfService1.Service1Behavior">
      <endpoint behaviorConfiguration="EndpBehavior" address="" binding="webHttpBinding" contract="WcfService1.IService1">
        <identity>
          <dns value="localhost"/>
        </identity>
      </endpoint>
      <endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange"/>
    </service>
  </services>
<protocolMapping>
    <add binding="basicHttpsBinding" scheme="https" />
</protocolMapping>    
<serviceHostingEnvironment aspNetCompatibilityEnabled="true" multipleSiteBindingsEnabled="true"   />
</system.serviceModel>

http://localhost/IISWCF/Service1.svc/GetData?value=1

<script type="text/javascript" language="javascript">
function callService() {
    var value = 10;
    $.ajax({
        type: "GET",
        url: "http://localhost/IISWCF/Service1.svc/GetData?value=1",
        contentType: "application/json; charset=utf-8",
        data: '{"value": "' + value + '"}',
        dataType: "text",
        processdata: false, //True or False
        statusCode: {
            404: function () {
                alert("page not found");
            },
            200: function () {
                alert('HTTP HIT WAS Good.');
            },
        },
        error: function (XMLHttpRequest, textStatus, errorThrown) {
            alert("error: " + errorThrown);
        },
        success: function (msg) {
            alert(msg);
        }
    });
}