C#原生实现POST|GET方式发送Http请求帮助类

C#抓取远程页面内容，以POST|GET方式抓取远程页面内容

以GET方式抓取远程页面内容

以POST方式抓取远程页面内容

using System;
using System.Data;
using System.Web.UI;
using System.IO;
using System.Net;
using System.Text;
using System.Text.RegularExpressions;//包含必要的库
namespace Utils
{
    /// <summary>
    /// 抓取远程页面内容
    /// </summary>
    public static class HttpHelp
    {
        //以GET方式抓取远程页面内容
        public static string Get_Http(string tUrl)
        {
            string strResult;
            try
            {
                HttpWebRequest hwr = (HttpWebRequest)HttpWebRequest.Create(tUrl);
                hwr.Timeout = 19600;
                HttpWebResponse hwrs = (HttpWebResponse)hwr.GetResponse();
                Stream myStream = hwrs.GetResponseStream();
                StreamReader sr = new StreamReader(myStream, Encoding.Default);
                StringBuilder sb = new StringBuilder();
                while (-1 != sr.Peek())
                {
                    sb.Append(sr.ReadLine() + "\r\n");
                }
                strResult = sb.ToString();
                hwrs.Close();
            }
            catch (Exception ee)
            {
                strResult = ee.Message;
            }
            return strResult;
        }
        //以POST方式抓取远程页面内容
        //postData为参数列表
        public static string Post_Http(string url, string postData, string encodeType)
        {
            string strResult = null;
            try
            {
                Encoding encoding = Encoding.GetEncoding(encodeType);
                byte[] POST = encoding.GetBytes(postData);
                HttpWebRequest myRequest = (HttpWebRequest)WebRequest.Create(url);
                myRequest.Method = "POST";
                myRequest.ContentType = "application/x-www-form-urlencoded";
                myRequest.ContentLength = POST.Length;
                Stream newStream = myRequest.GetRequestStream();
                newStream.Write(POST, 0, POST.Length); //设置POST
                newStream.Close();
                // 获取结果数据
                HttpWebResponse myResponse = (HttpWebResponse)myRequest.GetResponse();
                StreamReader reader = new StreamReader(myResponse.GetResponseStream(), Encoding.Default);
                strResult = reader.ReadToEnd();
            }
            catch (Exception ex)
            {
                strResult = ex.Message;
            }
            return strResult;
        }
    }
}