Jquery 通过 Json 连接 WCF 例子

Jquery 代码

 $(function(){
    $("#loginValidTd").click(function(){
        $.ajax({
           type: "POST",
           contentType:"application/json",
           
           url: "WCFServices/UserRightValid.svc/LoginValid",
           data:"{\"userName\":\""+$("#UserName").val()+"\",\"password\":\""+$("#Password").val()+"\"}",//这一句非常重要,如果你要调用的方法是没有参数的
           processData:false,
           dataType:"json",
           success: function(data){
               if(data)
               {
                    alert("成功");
               }
               else
               {
                    alert("用户名或者密码不正确！");
               }
           },
           error:function(XMLHttpRequest, textStatus, errorThrown){ 
                alert( "Error Occured!" ); 
           } 
        });
    });
 });

WCF 代码

using System;
using System.Linq;
using System.Runtime.Serialization;
using System.ServiceModel;
using System.ServiceModel.Activation;
using System.ServiceModel.Web;
using System.Web.Security;

namespace ClientInfo.Web.WCFServices
{
    [ServiceContract(Namespace = "")]
    [AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Allowed)]
    public class UserRightValid
    {
        // 添加 [WebGet] 属性以使用 HTTP GET
        [OperationContract]
        public void DoWork()
        {
            // 在此处添加操作实现
            return;
        }

        // 在此处添加更多操作并使用 [OperationContract] 标记它们
        [OperationContract]
        [WebInvoke(BodyStyle = WebMessageBodyStyle.WrappedRequest, RequestFormat = WebMessageFormat.Json, ResponseFormat = WebMessageFormat.Json)]
        public bool LoginValid(string userName,string password)
        {
            bool result = false;
            result=Membership.ValidateUser(userName, password);
            return result;
        }
    }
}

Webconfig  注意注释的地方

 <system.serviceModel>
  <behaviors>
   <endpointBehaviors>
    <behavior name="ClientInfo.Web.WCFServices.UserRightValidAspNetAjaxBehavior">
     <!--<enableWebScript />--><!--用到WCF，注释此项-->
        <webHttp/>
    </behavior>
   </endpointBehaviors>
  </behaviors>
  <serviceHostingEnvironment aspNetCompatibilityEnabled="true" />
  <services>
   <service name="ClientInfo.Web.WCFServices.UserRightValid">
    <endpoint address="" behaviorConfiguration="ClientInfo.Web.WCFServices.UserRightValidAspNetAjaxBehavior"
     binding="webHttpBinding" contract="ClientInfo.Web.WCFServices.UserRightValid" />
   </service>
  </services>
 </system.serviceModel>