ASP.NET擷取遠程網頁的內容之一

來源:互聯網
上載者:User
asp.net|網頁

  一、本機直接上網時:

    #region 擷取指定遠程網頁內容
        /// <summary>
        /// 擷取指定遠程網頁內容
        /// </summary>
        /// <param name="strUrl">所要尋找的遠程網頁地址</param>
        /// <param name="timeout">逾時時間長度設定,一般設定為8000</param>
        /// <param name="enterType">是否輸出分行符號,0不輸出,1輸出文字框換行</param>
        /// <param name="EnCodeType">編碼方式</param>
        /// <returns></returns>
        ///  也可考慮 static string
       
        public string GetRequestString(string strUrl,int timeout,int enterType,Encoding EnCodeType)
        {
            string strResult;
            try
            {
                HttpWebRequest myReq = (HttpWebRequest)HttpWebRequest.Create(strUrl) ;
                myReq.Timeout = timeout;
                HttpWebResponse HttpWResp = (HttpWebResponse)myReq.GetResponse();
                Stream myStream = HttpWResp.GetResponseStream () ;
                StreamReader sr = new StreamReader(myStream , EnCodeType);
                StringBuilder strBuilder = new StringBuilder();

                while (-1 != sr.Peek())
                {
                    strBuilder.Append(sr.ReadLine());
                    if(enterType==1)
                    {
                        strBuilder.Append("\r\n");
                    }
                }
                strResult = strBuilder.ToString();
            }
            catch(Exception err)
            {
                strResult = "請求錯誤:" + err.Message;
            }
            return strResult ;
        }

        #endregion

  二:通過域環境代理上網時這樣就不行了! 下篇文章分解,呵呵!



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