/// <summary>根据指定的url下载并返回文本数据</summary>
/// <param name="det">获取字节流编码</param>
/// <param name="surl">指定的url</param>
/// <param name="cmode">页面编码获取模式,=0：自动,=1：每页自动,=2：自定义</param>
/// <param name="pencoding">返回文本编码</param>
/// <param name="pcoding">返回文本编码文本</param>
/// <param name="errs">下载失败则返回错误信息</param>
/// <returns>根据指定的url下载并返回文本数据</returns>
public static string GetHttp(ByteEncode det, string surl, int cmode, ref Encoding pencoding, ref string pcoding, ref string errs)
{
try
{
string s = "";
WebClient wclient = new WebClient();
wclient.Credentials = CredentialCache.DefaultCredentials;
byte[] bytes = wclient.DownloadData(Often.UrlEn(surl));
if (cmode == 0)
{
s = GetEncoding(det, bytes, ref pcoding).GetString(bytes);
}
else if (cmode == 1)
{
s = GetEncoding(det, bytes, ref pcoding).GetString(bytes);
}
else if (cmode == 2)
{
s = Encoding.GetEncoding(pcoding).GetString(bytes);
}
wclient.Dispose();
return(s);
}
catch (Exception ex)
{
errs = ex.Message;
return("");
}
}
/// <summary>读取指定字节数组编码</summary>
/// <param name="det">获取字节流编码</param>
/// <param name="sr">指定字节数组</param>
/// <param name="pcoding">返回文本编码文本</param>
public static Encoding GetEncoding(ByteEncode det, byte[] sr, ref string pcoding)
{
pcoding = det.GetByCode(sr);
if (pcoding != "")
{
return(Encoding.GetEncoding(pcoding));
}
else
{
return(Encoding.Default);
}
}
/// <summary>
/// 返回文件的字符编码
/// </summary>
/// <param name="paths">文件路径</param>
/// <returns>返回文件的字符编码</returns>
public static Encoding GetFileEncoding(string paths)
{
Encoding en = Encoding.Default;
try
{
FileStream fs = new FileStream(paths, FileMode.Open);
ByteEncode be = new ByteEncode();
string ens = be.GetByCode(fs);
en = Encoding.GetEncoding(ens);
fs.Close();
fs = null;
}
catch
{
}
return(en);
}
/// <summary>返回字节数组最接近编码</summary>
/// <param name="sr">字节数组</param>
/// <returns>返回字节数组最接近编码</returns>
public static string GetBytesEncoding(byte[] sr)
{
ByteEncode be = new ByteEncode();
return(be.GetByCode(sr));
}
