Question

我目前正在努力提供我们拥有的信息监督员服务,我的任务是简单地将信息细节纳入信息机构。

I have tried using a string builder for this however i have found that my message body is a html based string.

我很想知道,是否有办法可以添加价值观,在这种“html”的某个时候添加?

Below is a section of the html string i want to manipulate. My text needs to be inserted directly after the body tag.

 <body lang=EN-GB link=blue vlink=purple>
   <div class=WordSection1>
     <p class=MsoNormal>
       <span style= font-size:10.0pt;font-family:"Century Gothic","sans-serif";color:black >Another test for AppendLine();<o:p></o:p>
       </span>
     </p>

在这方面,我是如何试图做到的:

 StringBuilder sb = new StringBuilder();

            sb.Append("From: ");
            sb.Append(message.From.ToString());
            sb.AppendLine();
            sb.Append("Sent: ");
            sb.Append(message.Date.ToString());
            sb.AppendLine();
            sb.Append("To: ");
            sb.Append(message.To.ToString());
            sb.AppendLine();
            sb.Append("Subject: ");
            sb.Append(message.Subject);
            sb.AppendLine();
            sb.Append(message.BodyHtml);

Unfortunately this just printed my From, Sent, To, Subject values onto one line and then output the html section.

If any more information is needed please let me know and i will provide it.

Answer 1

不要使用超文本,而是尝试用这种文字取代:

StringBuilder sb = new StringBuilder();

sb.Append("From: ");
sb.Append(message.From.ToString());
...
sb.Append("Subject: ");
sb.Append(message.Subject);
sb.AppendLine();

// not guaranteed to work with arbitrary HTML strings
Regex regex = new Regex(@"(<body[^>]*>)", RegexOptions.IgnoreCase);
message.BodyHtml = regex.Replace(message.BodyHtml, "$1
" + sb.ToString());

Disclaimer: Please be advised that processing HTML with regular expressions is generally regarded as a bad idea. Although the code above might work in 98% of cases, regular expressions are not up to the task of parsing arbitrary HTML. HTML is too sophisticated for regex. If you need to process arbitrary HTML bodies (not just the one above), I strongly recommend using a proper HTML parser such as HTML Agility Pack - even for seemingly-simple operations such as inserting a text after the body tag.

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