Post方式调用wcf服务

 我们平常在PC端调用WCF服务，只要知道WCF服务的地址，客户端直接添加引用服务就可以使用了，殊不知还有其他方式，其实，我们也可以

通过HTTP POST的方式调用WCF服务，这样就不用添加引用了，在手机移动端开发后台服务，都是通过Post的形式调用WCF服务，当然，这种方式在PC也可以使用。

我们来看下面的一个简单示例。下面的示例演示了服务器端和客户端的简单通讯

服务器端返回一个JSON字符串，代码如下

契约定义

[OperationContract]  
 [WebInvoke(UriTemplate = "AddData", Method = "POST", RequestFormat = WebMessageFormat.Json, BodyStyle = WebMessageBodyStyle.Bare, ResponseFormat = WebMessageFormat.Json)]  
 string AddData(Stream stream);  

契约实现

public string AddData(Stream stream)  
   {  
       StreamReader sr = new StreamReader(stream);  
       string s = sr.ReadToEnd();  
       sr.Dispose();  
       NameValueCollection nvc = HttpUtility.ParseQueryString(s);  
  
       string appKey = nvc["appKey"];  
       string sign = nvc["sign"];  
       string name=nvc["username"];  
  
       var result = new ErrorModel  
       {  
           IsError = true,  
           ErrorCode = -2,  
           ErrorMsg = "操作信息",  
       };  
       return new JavaScriptSerializer().Serialize(result);  
   }  

 客户端调用

public static string postSend(string url, string param)  
       {  
           Encoding myEncode = Encoding.GetEncoding("UTF-8");  
           byte[] postBytes = Encoding.UTF8.GetBytes(param);  
  
           HttpWebRequest req = (HttpWebRequest)HttpWebRequest.Create(url);  
           req.Method = "POST";  
           req.ContentType = "application/x-www-form-urlencoded;charset=UTF-8";  
           req.ContentLength = postBytes.Length;  
  
           try  
           {  
               using (Stream reqStream = req.GetRequestStream())  
               {  
                   reqStream.Write(postBytes, 0, postBytes.Length);  
               }  
               using (WebResponse res = req.GetResponse())  
               {  
                   using (StreamReader sr = new StreamReader(res.GetResponseStream(), myEncode))  
                   {  
                       string strResult = sr.ReadToEnd();  
                       return strResult;  
                   }  
               }  
           }  
           catch (WebException ex)  
           {  
               return "无法连接到服务器
错误信息：" + ex.Message;  
           }  
       }  

string param = "appKey=44hbf622op&username=13011001233&sign=123456";  
  
            postSend("http://localhost:17446/CusDataService.svc/AddData", param);  

<services>  
  <service behaviorConfiguration="RESTBehaviour" name="Jawasoft.TrackCodeService.Server.TrackCodeService">  
    <endpoint address="" behaviorConfiguration="webHttp" binding="webHttpBinding"  
ame="post" contract="Jawasoft.TrackCodeService.Server.ITrackCodeService"/>  
  
  </service>  
</services>  

转载：

http://blog.csdn.net/zx13525079024/article/details/27069379