关于AJAX调用WCF服务分为跨域和不跨域两种方式，今天咱们先介绍下不跨域下的调用方法。DEMO是在VS2008写的.
经过测试与研究，发现AJAX调用WCF服务必须满足以下条件
1.wcf的通讯方式必须使用webHttpBinding
2.必须设置<endpointBehaviors>节点的值
3.服务的实现必须添加标记
复制代码 代码如下:
[AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Allowed)]
4.方法前面必须添加如下标记
复制代码 代码如下:
[WebInvoke(Method = "POST", BodyStyle = WebMessageBodyStyle.Bare, ResponseFormat = WebMessageFormat.Json)]
5.ajax方法中传递的参数名称必须和wcf服务中提供的参数方法名称一致
以下是本人写的代码，标记颜色的是需要注意的地方
服务器端配置文件代码
<system.serviceModel> <services> <service behaviorConfiguration="WcfServiceDemoOne.Service1Behavior"> <!-- Service Endpoints --> <endpoint address="" binding="webHttpBinding" contract="WcfServiceDemoOne.IService1" behaviorConfiguration="HttpBehavior"></endpoint> <endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange"/> <host> <baseAddresses> <add baseAddress="http://localhost:12079/Service1.svc"/> </baseAddresses> </host> </service> </services> <behaviors> <serviceBehaviors> <behavior> <!-- 为避免泄漏元数据信息，请在部署前将以下值设置为 false 并删除上面的元数据终结点--> <serviceMetadata httpGetEnabled="true"/> <!-- 要接收故障异常详细信息以进行调试，请将以下值设置为 true。在部署前设置为 false 以避免泄漏异常信息--> <serviceDebug includeExceptionDetailInFaults="false"/> </behavior> </serviceBehaviors> <endpointBehaviors> <behavior> <webHttp/> </behavior> </endpointBehaviors> </behaviors> </system.serviceModel>
服务器端代码
[ServiceContract] public interface IService1 { [OperationContract] string GetData(int value); [OperationContract] City GetDataUsingDataContract(City composite); [OperationContract] List<City> GetList(); [OperationContract] List<City> GetListData(List<City> list); } // 使用下面示例中说明的数据约定将复合类型添加到服务操作。 [DataContract] public class City { int seq = 0; string cityID; string ctiyName; [DataMember] public string CityID { get { return cityID; } set { cityID=value; } } [DataMember] public string CityName { get { return ctiyName; } set { ctiyName = value; } } [DataMember] public int Seq { get { return seq; } set { seq = value; } } }
实现代码
[AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Allowed)] public class Service1 : IService1 { [WebInvoke(Method = "POST", BodyStyle = WebMessageBodyStyle.WrappedRequest, RequestFormat = WebMessageFormat.Json, ResponseFormat = WebMessageFormat.Json)] public string GetData(int value) { return string.Format("You entered: {0}", value); } #region IService1 成员 [WebInvoke(Method = "POST", BodyStyle = WebMessageBodyStyle.Bare, ResponseFormat = WebMessageFormat.Json)] public City GetDataUsingDataContract(City composite) { City c = new City(); c.CityID = composite.CityID; c.CityName = composite.CityName; c.Seq = composite.Seq; return c; } [WebInvoke(Method = "POST", BodyStyle = WebMessageBodyStyle.Bare, ResponseFormat = WebMessageFormat.Json)] public List<City> GetList() { List<City> list = new List<City>(); City cc = new City(); cc.CityID = "1"; cc.CityName="北京"; cc.Seq = 3; list.Add(cc); City cc1 = new City(); cc1.CityID = "2"; cc1.CityName = "上海"; cc1.Seq = 4; list.Add(cc1); return list; } [WebInvoke(Method = "POST", BodyStyle = WebMessageBodyStyle.Bare, ResponseFormat = WebMessageFormat.Json)] public List<City> GetListData(List<City> list) { return list; } #endregion }
客户端调用代码
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="WebForm1.aspx.cs" Inherits="WcfServiceDemoOne.WebForm1" %> <!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 runat="server"> <title></title> <script src="https://www.jb51.net/jquery-1.7.1.min.js" type="text/javascript"></script> <script type="text/javascript"> //参数为整数的方法 function fn1() { $.ajax({ url: "http://localhost:12079/Service1.svc/GetData", type: "POST", contentType: "text/json", data: '{"value":2}', dataType: "json", success: function(returnValue) { alert(returnValue); }, error: function() { alert('error'); } }); } //参数为实体类的方法 function fn2() { $.ajax({ url: "http://localhost:12079/Service1.svc/GetDataUsingDataContract", type: "POST", contentType: "application/json", data: '{"CityID":1,"CityName":"北京","Seq":"3"}', dataType: "json", success: function(returnValue) { alert(returnValue.CityID + ' ' + returnValue.CityName + "--" + returnValue.Seq); }, error: function() { alert('error'); } }); } //返回值为类集合的方法 function fn3() { $.ajax({ url: "http://localhost:12079/Service1.svc/GetList", type: "POST", contentType: "application/json", dataType: "json", success: function(returnValue) { for (var i = 0; i < returnValue.length; i++) { alert(returnValue[i].CityID + ' ' + returnValue[i].CityName+'---'+returnValue[i].Seq); } }, error: function() { alert('error'); } }); } function fn4() { $.ajax({ url: "http://localhost:12079/Service1.svc/GetListData", type: "POST", contentType: "application/json", data: '[{"CityID":1,"CityName":"北京","Seq":"3"},{"CityID":3,"CityName":"上海","Seq":"3"}]', dataType: "json", success: function(returnValue) { for (var i = 0; i < returnValue.length; i++) { alert(returnValue[i].CityID + ' ' + returnValue[i].CityName + '---' + returnValue[i].Seq); } }, error: function() { alert('error'); } }); } </script> </head> <body> <form runat="server"> <div> <input type="button" value="调用1" /></div> <input type="button" value="调用2" /> <br /> <input type="button" value="调用3" /></form> <br /> <input type="button" value="调用4"/> </body> </html>
完整实例代码代码点击此处本站下载。