获取邮件中的HTML页面
下面的函数假定已经将邮件的几个部分分开
1
private string GetText_Html(string PartSrc)
2
{
3
//获取传输编码
4Regex TransferEncoding_Regex =
5new Regex(@"Content-Transfer-Encoding: (.*?)\r\n", RegexOptions.IgnoreCase);
6Match MacthTransfer = TransferEncoding_Regex.Match(PartSrc);
7//截取出的内容文本
8string ContentStr = "";
9//用正则表达式截取内容部分
10//正则表达式声明中一定写上不区分大小写
11Regex HtmlContent_Regex =
12new Regex(@"<html([\s\S]*?)</html>", RegexOptions.IgnoreCase);
13Match MatchHtml = HtmlContent_Regex.Match(PartSrc);
14if (MatchHtml != null)
15
{
16ContentStr = MatchHtml.Groups[1].Value;
17
}
18//去除首尾的\r\n
19ContentStr = ContentStr.TrimStart(new char[] { '\r', '\n' });
20ContentStr = ContentStr.TrimEnd(new char[] { '\r', '\n' });
21
22//根据传输编码处理数据
23if (MacthTransfer.Groups[1].Value == "base64")
24{
25return Encoding.GetEncoding("GB2312").GetString(Convert.FromBase64String(ContentStr));
26}
27else//暂时将base64外的文本传输编码默认为打印机编码 quoted-printable
28{
29ArrayList CBuffer = new ArrayList();
30for (int i = 0; i < ContentStr.Length; i++)
31{
32if (ContentStr[i] == '=')
33{
34i++;
35if (ContentStr[i] != '\r')
36{
37byte vByte;
38if (byte.TryParse(ContentStr.Substring(i, 2),
39NumberStyles.HexNumber, null, out vByte))
40CBuffer.Add(vByte);
41}
42i++;
43}
44else if (ContentStr[i] != '\n') CBuffer.Add((byte)ContentStr[i]);
45}
46return Encoding.Default.GetString((byte[])CBuffer.ToArray(typeof(byte)));
47}
48
}
private string GetText_Html(string PartSrc)2
{
3
//获取传输编码4
Regex TransferEncoding_Regex =5
new Regex(@"Content-Transfer-Encoding: (.*?)\r\n", RegexOptions.IgnoreCase);6
Match MacthTransfer = TransferEncoding_Regex.Match(PartSrc);7
//截取出的内容文本8
string ContentStr = "";9
//用正则表达式截取内容部分10
//正则表达式声明中一定写上不区分大小写11
Regex HtmlContent_Regex =12
new Regex(@"<html([\s\S]*?)</html>", RegexOptions.IgnoreCase);13
Match MatchHtml = HtmlContent_Regex.Match(PartSrc);14
if (MatchHtml != null)15
{
16
ContentStr = MatchHtml.Groups[1].Value;17
}18
//去除首尾的\r\n19
ContentStr = ContentStr.TrimStart(new char[] { '\r', '\n' });20
ContentStr = ContentStr.TrimEnd(new char[] { '\r', '\n' });21
22
//根据传输编码处理数据23
if (MacthTransfer.Groups[1].Value == "base64")24
{25
return Encoding.GetEncoding("GB2312").GetString(Convert.FromBase64String(ContentStr));26
}27
else//暂时将base64外的文本传输编码默认为打印机编码 quoted-printable28
{29
ArrayList CBuffer = new ArrayList();30
for (int i = 0; i < ContentStr.Length; i++)31
{32
if (ContentStr[i] == '=')33
{34
i++;35
if (ContentStr[i] != '\r')36
{37
byte vByte;38
if (byte.TryParse(ContentStr.Substring(i, 2),39
NumberStyles.HexNumber, null, out vByte))40
CBuffer.Add(vByte);41
}42
i++;43
}44
else if (ContentStr[i] != '\n') CBuffer.Add((byte)ContentStr[i]);45
}46
return Encoding.Default.GetString((byte[])CBuffer.ToArray(typeof(byte)));47
}48
}