网页请求get方式

方法都是博客中的大神写的，谢谢各路大神。

方法一：（亲测有效）

//Get请求方式
private string RequestGet(string Url)
{
string PageStr = string.Empty;//用于存放还回的html
Uri url = new Uri(Url);//Uri类 提供统一资源标识符 (URI) 的对象表示形式和对 URI 各部分的轻松访问。就是处理url地址
try
{
HttpWebRequest httprequest = (HttpWebRequest)WebRequest.Create(url);//根据url地址创建HTTpWebRequest对象
#region 参数设置
httprequest.Method = "get";
//---------------------------------------------设定一些参数（不必要可以）
//httprequest.KeepAlive = false;//持久连接设置为false
//httprequest.ProtocolVersion = HttpVersion.Version11;// 网络协议的版本
//httprequest.Proxy = WebProxy.GetDefaultProxy();//服务器代理
//httprequest.ContentType = "application/x-www-form-urlencoded";//http 头
//httprequest.AllowAutoRedirect = true;
//httprequest.MaximumAutomaticRedirections = 10;
//httprequest.Timeout = 30000;//设定超时十秒（毫秒）
//httprequest.UserAgent = "mozilla/4.0 (compatible; msie 6.0; windows nt 5.1)"; //浏览器
//=================================================
#endregion
HttpWebResponse response = (HttpWebResponse)httprequest.GetResponse();//使用HttpWebResponse获取请求的还回值
Stream steam = response.GetResponseStream();//从还回对象中获取数据流
StreamReader reader = new StreamReader(steam, Encoding.GetEncoding("gb2312"));//读取数据Encoding.GetEncoding("gb2312")指编码是gb2312，不让中文会乱码的
PageStr = reader.ReadToEnd();
reader.Close();
}
catch (Exception e)
{
PageStr += e.Message;
}
return PageStr;
}

方法二：（积累 没有试过）

//test
//public string HttpGet(string Url, string postDataStr)
//{
// HttpWebRequest request = (HttpWebRequest)WebRequest.Create(Url + (postDataStr == "" ? "" : "?") + postDataStr);
// request.Method = "GET";
// request.ContentType = "text/html;charset=UTF-8";

// HttpWebResponse response = (HttpWebResponse)request.GetResponse();
// Stream myResponseStream = response.GetResponseStream();
// StreamReader myStreamReader = new StreamReader(myResponseStream, Encoding.GetEncoding("utf-8"));
// string retString = myStreamReader.ReadToEnd();
// myStreamReader.Close();
// myResponseStream.Close();

// return retString;
//}

注：获取后可截取

int i = str.IndexOf("aaa")+ 5;
int j = str.IndexOf("bbb");
string BalaBala= str.Substring(i, j - i);

注：引用

using System.IO;
using System.Net;
using System.Text;