擷取 Post 傳遞參數的網頁

利用 HttpWebRequest 可以將以 Post 傳遞參數的網頁內容擷取下來，這次我寫成一個函式，如需要用到，可以複製到你的程式碼內用。

此函式回傳網頁內容字串，傳入兩參數，一為網址，一為 Post 內所有參數。

public string PostCatchPageCode(string Url, string PostData)
{
    HttpWebRequest request = (HttpWebRequest)WebRequest.Create(Url);
    request.Method = "POST";

    byte[] byteArray = Encoding.GetEncoding("utf-8").GetBytes(PostData);

    request.ContentType = "application/x-www-form-urlencoded";
    request.ContentLength = byteArray.Length;

    Stream dataStream = request.GetRequestStream();
    dataStream.Write(byteArray, 0, byteArray.Length);
    dataStream.Close();

    WebResponse response = request.GetResponse();

    dataStream = response.GetResponseStream();
    StreamReader reader = new StreamReader(dataStream);

    return reader.ReadToEnd();
}

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