using System;using System.Data;using System.Configuration;using System.Linq;using System.Web;using System.Web.Security;using System.Web.UI;using System.Web.UI.HtmlControls;using System.Web.UI.WebControls;using System.Web.UI.WebControls.WebParts;using System.Xml.Linq;using System.Net;using System.IO;using System.Text;using System.Collections.Generic;namespace WebAppTest{    public class HttpTools    {        public static string GetRequest(string url)        {            HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(url);            request.Method = "get";            HttpWebResponse response = (HttpWebResponse)request.GetResponse();            using(StreamReader sr = new StreamReader(response.GetResponseStream(),Encoding.UTF8))            {                string result = sr.ReadToEnd();                return result;            }        }        public static string PostRequest(string url,Dictionary<object,object> paramList)        {            HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(url);                       StringBuilder sb = new StringBuilder();            foreach (var item in paramList)            {                sb.Append(item.Key + "=" + item.Value + "&");            }                        //将参数拼为:"name=test&pwd=123" 这种字符串格式 然后将字符串转为byte数组 最后将byte数组写入请求流中            string paramData = http://www.mamicode.com/sb.ToString().Trim(‘&‘);            byte[] data =http://www.mamicode.com/ System.Text.Encoding.UTF8.GetBytes(paramData);            //设置post方式            request.Method = "post";            //这句不能少  不难post请求 得不到对应的响应结果            request.ContentType = "application/x-www-form-urlencoded";            //设置请求参数的长度            request.ContentLength = data.Length;            Stream stream = request.GetRequestStream();            stream.Write(data, 0, data.Length);            stream.Close();            /**             * *****************注意事项********************             *              * 不管是get还是post请求最后得到的响应流不能直接stream              * 不难得不到响应结果             *              *              * 直接使用Stream 不能获取响应的结果值             *              * 要使用StreamReader才能获取响应的结果值             *              * Stream stream = response.GetResponseStream();             *              * byte[] data = http://www.mamicode.com/new byte[2*1024*1024]>*/            HttpWebResponse response = (HttpWebResponse)request.GetResponse();            using(StreamReader sr = new StreamReader(response.GetResponseStream(),Encoding.UTF8))            {                string result = sr.ReadToEnd();                return result;                            }                    }    }}