C#后台发送HTTP请求

 

转载自：http://www.cnblogs.com/leon719/p/4263673.html

using System.Collections.Generic;

using  System.Linq;

using  System.Text;

using  System.Net;

using  System.IO;

using  System;

 

namespace  KL.EDMS.Business.Report

{

     public  class  FaultCountLogic

     {

         //注：本次请求为向androidpnserver发送请求实现后台向客户端的消息推送

         public  string  SentHttpRequest()

         { 

             //请求路径

             string  url =  "http://localhost:7070/notification.do" ;

             

             //定义request并设置request的路径

             WebRequest request = WebRequest.Create(url);

             

             //定义请求的方式

             request.Method =  "POST" ;

             

             //初始化request参数

             string  postData =  "action=send&broadcast=Y&uri=112332&username=f8df247d0b2b4277b122f68c94c2caab" ;

             postData += "&title=C#发送后台请求" ;

             postData +=  "&message=利用C#后台向androidpnserver发送HTTP请求实现客户端的消息推送功能。" ;

             

             //设置参数的编码格式，解决中文乱码

             byte [] byteArray = Encoding.UTF8.GetBytes(postData);

             

             //设置request的MIME类型及内容长度

             request.ContentType =  "application/x-www-form-urlencoded" ;

             request.ContentLength = byteArray.Length;

             

             //打开request字符流

             Stream dataStream = request.GetRequestStream();

             dataStream.Write(byteArray, 0, byteArray.Length);

             dataStream.Close();

             

             //定义response为前面的request响应

             WebResponse response = request.GetResponse();

             

             //获取相应的状态代码

             Console.WriteLine(((HttpWebResponse)response).StatusDescription);

             

             //定义response字符流

             dataStream = response.GetResponseStream();

             StreamReader reader =  new  StreamReader(dataStream);

             string  responseFromServer = reader.ReadToEnd(); //读取所有

             Console.WriteLine(responseFromServer);

             

             //关闭资源

             reader.Close();

             dataStream.Close();

             response.Close(); 

             return  responseFromServer;

         }

     }

}