[C#/COMMON] WebClient 클래스 : 서버 인코딩 타입에 맞춰 문자열 다운로드하기

■ WebClient 클래스를 사용해 서버 인코딩 타입에 맞춰 문자열을 다운로드하는 방법을 보여준다.

▶ 예제 코드 (C#)


using System.Net;
using System.Text;

#region 문자열 다운로드하기 - DownloadString(webClient, url)

/// <summary>
/// 문자열 다운로드하기
/// </summary>
/// <param name="webClient">웹 클라이언트</param>
/// <param name="url">URL</param>
/// <returns>다운로드 문자열</returns>
public string DownloadString(WebClient webClient, string url)
{
    const string charsetKey = "charset";

    byte[] dataByteArray = webClient.DownloadData(url);

    string contentType = webClient.ResponseHeaders["Content-Type"];

    int charsetPosition = contentType.IndexOf(charsetKey);

    Encoding currentEncoding = Encoding.Default;

    if(charsetPosition != -1)
    {
        charsetPosition = contentType.IndexOf("=", charsetPosition + charsetKey.Length);

        if(charsetPosition != -1)
        {
            string charset = contentType.Substring(charsetPosition + 1);

            currentEncoding = Encoding.GetEncoding(charset);
        }
    }

    return currentEncoding.GetString(dataByteArray);
}

#endregion

using System.Net;

using System.Text;

#region 문자열 다운로드하기 - DownloadString(webClient, url)

/// <summary>

/// 문자열 다운로드하기

/// </summary>

/// <param name="webClient">웹 클라이언트</param>

/// <param name="url">URL</param>

/// <returns>다운로드 문자열</returns>

public string DownloadString(WebClient webClient, string url)

{

const string charsetKey = "charset";

byte[] dataByteArray = webClient.DownloadData(url);

string contentType = webClient.ResponseHeaders["Content-Type"];

int charsetPosition = contentType.IndexOf(charsetKey);

Encoding currentEncoding = Encoding.Default;

if(charsetPosition != -1)

{

charsetPosition = contentType.IndexOf("=", charsetPosition + charsetKey.Length);

if(charsetPosition != -1)

{

string charset = contentType.Substring(charsetPosition + 1);

currentEncoding = Encoding.GetEncoding(charset);

}

return currentEncoding.GetString(dataByteArray);

}

#endregion