ASP.NET数据传递:获取META信息
ASP.NET中数据传递:获取用Meta传递的数据:
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public static string GetMeta(string strFullUrl, string MateName)
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{
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//strFullUrl需要有Http前缀
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HttpWebRequest myRequest = (HttpWebRequest)WebRequest.Create(strFullUrl);
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myRequest.KeepAlive = false;
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myRequest.Timeout = 30000;
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myRequest.ReadWriteTimeout = 30000;
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string content = "";
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string strError = "";
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try
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{
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HttpWebResponse myResponse = (HttpWebResponse)myRequest.GetResponse();
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StreamReader myReader = new StreamReader(myResponse.GetResponseStream(), Encoding.UTF8);
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//返回内容存放于content中
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content = myReader.ReadToEnd();
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myReader.Close();
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myResponse.Close();
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}
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catch (Exception ex)
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{
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strError = ex.Message.ToString();
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}
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//分析返回信息中的<meta>标志中content=的内容
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RegexOptions RxOptions = RegexOptions.IgnoreCase;
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string StrToGetMate =
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@"<meta Name=\""{0}\"" content[\s]?=[\s\""\']+(.*?)[\""\']+.*?>";
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Regex myRx = new Regex(string.Format(StrToGetMate, MateName), RxOptions);
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Match myMt = myRx.Match(content);
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if (null != myMt)
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{
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//有匹配内容
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content = myMt.Groups[1].ToString();
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}
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//返回内容
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if (strError.Length > 0)
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{
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return strError;
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}
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else
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{
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return content;
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}
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}
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