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;

        }

    }

}