Cut the crap and get to the point
WCF client:
< % @ ServiceHost Language = “c #” Debug = “true” Service = “ajaxSample. The HelloWorld CodeBehind” = “HelloWorld. SVC. Cs Factory” = “System. The ServiceModel. Activation. WebServiceHostFactory” % >
Note: if you don’t add the Factory, the WCF, http://localhost/helloWorld.svc/Hello/person/name will not be able to use similar to directly access restful way.
Also remove < from web.config; EnableWebScript / > Is similar to:
< System. ServiceModel> < Behaviors> < EndpointBehaviors> < Behaviors name = “ajaxSample. HelloWorldAspNetAjaxBehavior >” < ! - < EnableWebScript / > - > < / behavior> < / endpointBehaviors> < / behaviors> < ServiceHostingEnvironment aspNetCompatibilityEnabled = “true” MultipleSiteBindingsEnabled = “true” / > < Services> < The service name = “ajaxSample. The HelloWorld” > < The endpoint address = "" behaviorConfiguration =” ajaxSample. HelloWorldAspNetAjaxBehavior” The binding = “webHttpBinding” contract = “ajaxSample. The HelloWorld / >” < / service> < / services> < / system. ServiceModel>
Okay, let’s start writing code. Since there are two ways to GET/POST in WCF calls, let’s write a sample method for several common cases:
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
{
/// <summary>
/// Post only Restful methods
/// </summary>
/// <param name="person"></param>
/// <param name="welcome"></param>
/// <returns></returns>
[OperationContract]
[WebInvoke(Method = "POST", UriTemplate = "PostRestfulTest/{person}/{welcome}", ResponseFormat = WebMessageFormat.Json)]
public List<string> PostRestfulTest(string person,string welcome)
{
List<string> result = new List<string>();
result.Add("PostRestfulTest -> from server:");
result.Add(person);
result.Add(welcome);
return result;
}
/// <summary>
/// can only Get Restful methods
/// </summary>
/// <param name="person"></param>
/// <param name="welcome"></param>
/// <returns></returns>
[OperationContract]
[WebInvoke(Method = "GET", UriTemplate = "GETRestfulTest/{person}/{welcome}", ResponseFormat = WebMessageFormat.Json)]
public List<string> GETRestfulTest(string person, string welcome)
{
List<string> result = new List<string>();
result.Add("GETRestfulTest -> from server:");
result.Add(person);
result.Add(welcome);
return result;
}
/// <summary>
/// can Get and Post Restful methods
/// </summary>
/// <param name="person"></param>
/// <param name="welcome"></param>
/// <returns></returns>
[OperationContract]
[WebInvoke(Method = "*", UriTemplate = "RestfulTest/{person}/{welcome}", ResponseFormat = WebMessageFormat.Json)]
public List<string> RestfulTest(string person, string welcome)
{
List<string> result = new List<string>();
result.Add("RestfulTest -> from server:");
result.Add(person);
result.Add(welcome);
return result;
}
/// <summary>
/// general method of Post only (note: Post mode, BodyStyle must be set to WrappedRequest or Wrapped)
/// </summary>
/// <param name="person"></param>
/// <param name="welcome"></param>
/// <returns></returns>
[OperationContract]
[WebInvoke(Method = "POST", ResponseFormat = WebMessageFormat.Json, BodyStyle=WebMessageBodyStyle.WrappedRequest)]
public List<string> PostTest(string person, string welcome)
{
List<string> result = new List<string>();
result.Add("PostRestfulTest -> from server:");
result.Add(person);
result.Add(welcome);
return result;
}
/// <summary>
/// only regular methods of Get
/// </summary>
/// <param name="person"></param>
/// <param name="welcome"></param>
/// <returns></returns>
[OperationContract]
[WebInvoke(Method = "GET", ResponseFormat = WebMessageFormat.Json)]
public List<string> GETTest(string person, string welcome)
{
List<string> result = new List<string>();
result.Add("GETTest -> from server:");
result.Add(person);
result.Add(welcome);
return result;
}
}
}JQuery calling code:
<script type="text/javascript">
$().ready(function () {
$.post("HelloWorld.svc/PostRestfulTest/111/222", function (data) {
alert("PostRestfulTest Successful call, the return value is: " + data);
})
$.get("HelloWorld.svc/GETRestfulTest/333/444", function (data) {
alert("GETRestfulTest Successful call, the return value is: " + data);
})
$.get("HelloWorld.svc/RestfulTest/555/666", function (data) {
alert("RestfulTest GET Method is successfully invoked, and the return value is: " + data);
})
$.post("HelloWorld.svc/RestfulTest/777/888", function (data) {
alert("RestfulTest POST Method is successfully invoked, and the return value is: " + data);
})
$.get("HelloWorld.svc/GETTest", { person: "aaa", welcome: "bbb" }, function (data) {
alert("GETTest Successful call, the return value is: " + data);
});
$.ajax({
url: "HelloWorld.svc/PostTest",
type: "POST",
contentType: "application/json",
data: '{"person":"ccc","welcome":"ddd"}',
dataType: "html",
success: function (data) { alert("PostTest Successful call, the return value is: " + data); }
});
})
</script>Sometimes, the method exposed by WCF may need some sensitive information as parameters (such as user name/user ID, etc.), then if directly using js to call WCF, this part of information may be leaked to the client side, in this scenario, we often use a server side ashx to do the transfer
TestService. SVC
using System.ServiceModel;
namespace ashx_jQuery
{
[ServiceContract]
public class TestService
{
/// <summary>
//Gets the current user's salary for the specified month
/// </summary>
/// <param name="userId"></param>
/// <param name="month"></param>
/// <returns></returns>
[OperationContract]
public double GetSalary(int userId,int month)
{
if (month == 1)//It's just a demonstration
{
return 5000;
}
else
{
return 1000;
}
}
}
}AjaxProcess. Ashx
using System.Web;
namespace ashx_jQuery
{
/// <summary>
/// Summary description for AjaxProcess
/// </summary>
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 + "}");
}
/// <summary>
/// gets the current user ID
/// </summary>
/// <returns></returns>
private int GetUserId()
{
return 1;
}
public bool IsReusable
{
get
{
return false;
}
}
}
}JQuery calls:
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="default.aspx.cs" Inherits="ashx_jQuery._default" %>
<!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>jQuery ashx Sample</title>
<script type="text/javascript" src="http://ajax.aspnetcdn.com/ajax/jQuery/jquery-1.7.1.min.js"></script>
<script type="text/javascript">
$().ready(function () {
$("#btnTest").click(function () {
$.post(
"AjaxProcess.ashx",
{ month:1 },
function (e) {
var d = eval("(" + e + ")");
alert(d.salary);
}, "html");
})
})
</script>
</head>
<body>
<form id="form1" runat="server">
<input type="button" value="GetSalary" id="btnTest"/>
</form>
</body>
</html>Sample code: (link: http://xiazai.jb51.net/201401/jquery\_ajax\_wcf\_rest (jb51.net). Rar)