C#后台发送HTTP请求

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;
        }
    }
}