JQuery调用WCF(非宿主IIS服务)的问题，显示Method not allowed.

//IEmployees.cs



using System.Collections.Generic;

using System.ServiceModel;

using System.ServiceModel.Web;

using System.Runtime.Serialization;



namespace Artech.WcfServices.Service.Interface

{

    [ServiceContract]

    public interface IEmployees

    {

        [WebGet(UriTemplate = "all",ResponseFormat =WebMessageFormat.Json)]      

        IEnumerable<Employee> GetAll();





        [OperationContract, WebInvoke(UriTemplate = "InsRow",

            Method = "POST",

            BodyStyle = WebMessageBodyStyle.WrappedRequest,

            RequestFormat = WebMessageFormat.Json,

            ResponseFormat = WebMessageFormat.Json)]

        string InsertRow(string id, string title, string content);



    }



    [DataContract]

    public class Employee

    {

        [DataMember]

        public string Id { get; set; }

        [DataMember]

        public string Name { get; set; }

        [DataMember]

        public string Department { get; set; }

        [DataMember]

        public string Grade { get; set; }

    }

}

//EmployeesService.cs



using System.Collections.Generic;

using Artech.WcfServices.Service.Interface;



using System.ServiceModel;

using System.ServiceModel.Web;

using System.ServiceModel.Activation;



namespace Artech.WcfServices.Service

{

    [AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Allowed)] 

    public class EmployeesService : IEmployees

    {

        public IEnumerable<Employee> GetAll()

        {

            return new List<Employee>

            {

                new Employee{ Id = "001", Name="张三", Department="开发部", Grade = "G6"},    

                new Employee{ Id = "002", Name="李四", Department="人事部", Grade = "G7"}, 

                new Employee{ Id = "003", Name="王五", Department="销售部", Grade = "G8"}

            };

        }



        

        public string InsertRow(string id, string title, string content)

        {

            return string.Format("您输入的标题是：{0}\n\n您输入的内容是：{1}\n\n此文章的id是：{2}", title, content, id);

        }



    }

}

//Program.cs



using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.ServiceModel.Web;

using System.ServiceModel;

using Artech.WcfServices.Service.Interface;



namespace Artech.WcfServices.Service

{

    public class Program

    {

        static void Main()

        {

            using (WebServiceHost host = new WebServiceHost(typeof(EmployeesService)))

            {

                host.Open();

                Console.Read();

            }

        }

    }

}

<?xml version="1.0" encoding="utf-8" ?>

<configuration>

  <system.serviceModel>

    <standardEndpoints>

      <webHttpEndpoint>

        <standardEndpoint crossDomainScriptAccessEnabled="true"/>

      </webHttpEndpoint>

    </standardEndpoints>

    <bindings>

      <webHttpBinding>

        <binding crossDomainScriptAccessEnabled="true" />

      </webHttpBinding>

    </bindings>

    <services>      

      <service name="Artech.WcfServices.Service.EmployeesService">

        <endpoint kind="webHttpEndpoint" 

                  address="http://127.0.0.1:3721/employees" behaviorConfiguration="ProductsBehavior"

                  contract="Artech.WcfServices.Service.Interface.IEmployees"/>



       

      </service>

    </services>



    <behaviors>

      <endpointBehaviors>

        <behavior name="ProductsBehavior">

          <webHttp />

          <!--<enableWebScript />如果需要支持脚本调用请启用此项-->

        </behavior>

      </endpointBehaviors>



      <serviceBehaviors>

        <behavior name="ProductsBehavior">

          <serviceMetadata httpGetEnabled="true" />

        </behavior>

      </serviceBehaviors>

    </behaviors>





    <serviceHostingEnvironment aspNetCompatibilityEnabled="true"/>



  </system.serviceModel>

</configuration>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">

  <head>

    <title>员工列表</title>

    <style type="text/css">

        body

        {

            font-size: 12px;

            text-align: center;

        }

        #employees

        {

            border: 1px solid #000000;

            margin: 10px auto;

            background-color: #eee;

        }

        #employees tr

        {

            line-height: 23px;

        }

        #employees th

        {

            background-color: #ccc;

            color: #fff;

        }

        .oddRow

        {

            background-color: #fff;

        }

    </style>

    <script src="Scripts/jquery-1.7.1.js" type="text/javascript"></script>

    <script type="text/javascript">

        $(function () {

            $.ajax({

                type: "get",

                url: "http://127.0.0.1:3721/employees/all",

                dataType: "jsonp",

                success: function (employees) {

                    $.each(employees, function (index, value) {

                        var detailUrl = "detail.html?id=" + value.Id;

                        var html = "<tr><td>";

                        html += value.Id + "</td><td>";

                        html += "<a href='" + detailUrl + "'>" + value.Name + "</a></td><td>";

                        html += value.Grade + "</td><td>";

                        html += value.Department + "</td></tr>";

                        $("#employees").append(html);

                    });

                    $("#employees tr:odd").addClass("oddRow");

                }

            });



        });



        function callServer() {

            var id = Number($("#id").val());

            var title = String($("#title").val());

            var content = String($("#content").val());

            $.ajax({

                cache: false,

                async: true,

                type: "POST",

                dataType: "json",

                url: "http://127.0.0.1:3721/employees/InsRow",

                data: '{"id":' + id + ',"title":"' + title + '","content":"' + content + '"}',

                contentType: "application/json;charset=utf-8",

                success: function (msg) {

                    var a = eval('(' + msg + ')');

                    if (String(a.d).length > 0) { alert(a.d); }

                    else { alert("服务器超时"); }

                }

            });



        }





    </script>

</head>

  <body>

    <table id="employees" width="600px">

        <tr>

            <th>ID</th>

            <th>姓名</th>

            <th>级别</th>

            <th>部门</th>

        </tr>

    </table>

      </p>

      <div>

          文章标题：<input type="text" id="title" />

          <br />

          文章内容：<textarea id="content"></textarea>

          <input type="hidden" id="id" value="1" /><br />

          <input type="button" value="提交" onclick="callServer();" />

      </div>



</body>

</html>