不废话了，直奔主题吧
wcf端：
近几年比较流行restful，为了能让ajax调用，同时也为了支持restful风格的uri，在创建一个Ajax-enabled Wcf Service后，必须手动修改svc文件，指定Factory，即：
注：如果不添加Factory，则wcf将无法用类似http://localhost/helloWorld.svc/Hello/person/name 的restful方式直接访问。
同时还要去掉web.config中的即类似:
好了，开始写代码，鉴于wcf调用时有GET/POST二种方式，下面把几种常用的情况都写一个示例方法：
代码如下:
using System.Collections.Generic;
using System.ServiceModel;
using System.ServiceModel.Activation;
using System.ServiceModel.Web;
namespace ajaxSample
{
[ServiceContract(Namespace = "http://yjmyzz.cnblogs.com/")]
[AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Allowed)]
public class HelloWorld
{
///
/// 只能Post的Restful方法
///
///
///
///
[OperationContract]
[WebInvoke(Method = "POST", UriTemplate = "PostRestfulTest/{person}/{welcome}", ResponseFormat = WebMessageFormat.Json)]
public List PostRestfulTest(string person,string welcome)
{
List result = new List();
result.Add("PostRestfulTest -> from server:");
result.Add(person);
result.Add(welcome);
return result;
}
///
/// 只能Get的Restful方法
///
///
///
///
[OperationContract]
[WebInvoke(Method = "GET", UriTemplate = "GETRestfulTest/{person}/{welcome}", ResponseFormat = WebMessageFormat.Json)]
public List GETRestfulTest(string person, string welcome)
{
List result = new List();
result.Add("GETRestfulTest -> from server:");
result.Add(person);
result.Add(welcome);
return result;
}
///
/// 即可Get与Post的Restful方法
///
///
///
///
[OperationContract]
[WebInvoke(Method = "*", UriTemplate = "RestfulTest/{person}/{welcome}", ResponseFormat = WebMessageFormat.Json)]
public List RestfulTest(string person, string welcome)
{
List result = new List();
result.Add("RestfulTest -> from server:");
result.Add(person);
result.Add(welcome);
return result;
}
///
/// 只能Post的常规方法(注：Post方式，BodyStyle必须设置成WrappedRequest或Wrapped)
///
///
///
///
[OperationContract]
[WebInvoke(Method = "POST", ResponseFormat = WebMessageFormat.Json, BodyPostRestfulTest -> from server:");
result.Add(person);
result.Add(welcome);
return result;
}
///
/// 只能Get的常规方法
///
///
///
///
[OperationContract]
[WebInvoke(Method = "GET", ResponseFormat = WebMessageFormat.Json)]
public List GETTest(string person, string welcome)
{
List result = new List();
result.Add("GETTest -> from server:");
result.Add(person);
result.Add(welcome);
return result;
}
}
}
jQuery调用代码：
代码如下:
$().ready(function () {
$.post("HelloWorld.svc/PostRestfulTest/111/222", function (data) {
alert("PostRestfulTest调用成功，返回值为：" + data);
})
$.get("HelloWorld.svc/GETRestfulTest/333/444", function (data) {
alert("GETRestfulTest调用成功，返回值为：" + data);
})
$.get("HelloWorld.svc/RestfulTest/555/666", function (data) {
alert("RestfulTest GET方式调用成功，返回值为：" + data);
})
$.post("HelloWorld.svc/RestfulTest/777/888", function (data) {
alert("RestfulTest POST方式调用成功，返回值为：" + data);
})
$.get("HelloWorld.svc/GETTest", { person: "aaa", welcome: "bbb" }, function (data) {
alert("GETTest 调用成功，返回值为：" + data);
});
$.ajax({
url: "HelloWorld.svc/PostTest",
type: "POST",
contentType: "application/json",
data: '{"person":"ccc","welcome":"ddd"}',
dataType: "html",
success: function (data) { alert("PostTest调用成功，返回值为：" + data); }
});
})
有时候，WCF暴露的方法中可能需要一些敏感信息做为参数(比如用户名/用户ID之类)，这时如果直接用js来调用wcf，可能会把这部分信息泄漏在客户端，这种场景下，我们也经常用一个服务端的ashx来做中转
TestService.svc
代码如下:
using System.ServiceModel;
namespace ashx_jQuery
{
[ServiceContract]
public class TestService
{
///
/// 获取当前用户指定月份的工资
///
///
///
///
[OperationContract]
public double GetSalary(int userId,int month)
{
if (month == 1)//只是演示而已
{
return 5000;
}
else
{
return 1000;
}
}
}
}
AjaxProcess.ashx
代码如下:
using System.Web;
namespace ashx_jQuery
{
///
/// Summary description for AjaxProcess
///
public class AjaxProcess : IHttpHandler
{
public void ProcessRequest(HttpContext context)
{
context.Response.ContentType = "text/plain";
string month = context.Request["month"];
TestService wcf = new TestService();
double salary = wcf.GetSalary(GetUserId(), int.Parse(month));
context.Response.Write("{salary:" + salary + "}");
}
///
/// 获取当前的用户ID
///
///
private int GetUserId()
{
return 1;
}
public bool IsReusable
{
get
{
return false;
}
}
}
}
jQuery调用:
代码如下:
jQuery ashx Sample
$().ready(function () {
$("#btnTest").click(function () {
$.post(
"AjaxProcess.ashx",
{ month:1 },
function (e) {
var d = eval("(" + e + ")");
alert(d.salary);
}, "html");
})
})
示例代码：点击下载