C# 如何将格式化的电子邮件地址解析为显示名称和电子邮件地址？
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How to parse formatted email address into display name and email address?
提问by Dylan
Given the email address: "Jim" <[email protected]>
鉴于电子邮件地址：“Jim”<[email protected]>
If I try to pass this to MailAddress I get the exception:
如果我尝试将其传递给 MailAddress，则会出现异常：
The specified string is not in the form required for an e-mail address.
指定的字符串不是电子邮件地址所需的格式。
How do I parse this address into a display name (Jim) and email address ([email protected]) in C#?
如何在 C# 中将此地址解析为显示名称 (Jim) 和电子邮件地址 ([email protected])？
EDIT: I'm looking for C# code to parse it.
编辑：我正在寻找 C# 代码来解析它。
EDIT2: I found that the exception was being thrown by MailAddress because I had a space at the start of the email address string.
EDIT2：我发现 MailAddress 抛出了异常，因为我在电子邮件地址字符串的开头有一个空格。
采纳答案by Brannon
If you are looking to parse the email address manually, you want to read RFC2822 (https://tools.ietf.org/html/rfc822.html#section-3.4). Section 3.4 talks about the address format.
如果您想手动解析电子邮件地址，则需要阅读 RFC2822 ( https://tools.ietf.org/html/rfc822.html#section-3.4)。3.4 节讨论地址格式。
But parsing email addresses correctly is not easy and MailAddressshould be able to handle most scenarios.
但是正确解析电子邮件地址并不容易，MailAddress应该能够处理大多数情况。
According to the MSDN documentation for MailAddress:
根据 MSDN 文档MailAddress：
http://msdn.microsoft.com/en-us/library/591bk9e8.aspx
http://msdn.microsoft.com/en-us/library/591bk9e8.aspx
It should be able to parse an address with a display name. They give "Tom Smith <[email protected]>"as an example. Maybe the quotes are the issue? If so, just strip the quotes out and use MailAddress to parse the rest.
它应该能够解析带有显示名称的地址。他们举"Tom Smith <[email protected]>"个例子。也许引号是问题？如果是这样，只需去掉引号并使用 MailAddress 解析其余部分。
string emailAddress = "\"Jim\" <[email protected]>";
MailAddress address = new MailAddress(emailAddress.Replace("\"", ""));
Manually parsing RFC2822 isn't worth the trouble if you can avoid it.
如果可以避免，手动解析 RFC2822 不值得麻烦。
回答by Codewerks
回答by Wayne
new MailAddress("[email protected]", "Jimbo");
to parse out the string you gave:
解析出你给的字符串：
string input = "\"Jimbo\" [email protected]";
string[] pieces = input.Split(' ');
MailAddress ma = new MailAddress(pieces[1].Replace("<", string.Empty).Replace(">",string.Empty), pieces[0].Replace("\"", string.Empty));
回答by Sekhat
try: "Jim" <[email protected]> not sure if it'll work, but that's how I generally see it in e-mail clients.
尝试：“Jim”<[email protected]> 不确定它是否会起作用，但我通常在电子邮件客户端中看到它。
回答by Vivek
string inputEmailString = "\"Jimbo\" <[email protected]>";
string[] strSet = inputEmailString.Split('\"','<','>');
MailAddress mAddress = new MailAddress(strSet[0], strSet[2]);
回答by Carlton Jenke
if you make the assumption there is always a space between the 2, you could just use String.Split(' ') to split it on the spaces. That would give you an array with the parts split.
如果您假设 2 之间始终存在空格，则可以使用 String.Split(' ') 将其拆分为空格。这会给你一个分割部分的数组。
so maybe like this:
所以可能是这样的：
string str = "\"Jimbo\" [email protected]"
string[] parts = str.Trim().Replace("\"","").Split(' ')
An issue with this to check for is that if the display name has a space in it, it will be split into 2 or more items in your array itself, but the email would always be last.
要检查的一个问题是，如果显示名称中有空格，它会在您的数组中分成 2 个或多个项目，但电子邮件将始终排在最后。
Edit - you might also need to edit out the brackets, just add replaces with those.
编辑 - 您可能还需要编辑括号，只需添加替换括号即可。
回答by FlySwat
I just wrote this up, it grabs the first well formed e-mail address out of a string. That way you don't have to assume where the e-mail address is in the string
我刚刚写了这个，它从字符串中获取第一个格式正确的电子邮件地址。这样你就不必假设电子邮件地址在字符串中的位置
Lots of room for improvement, but I need to leave for work :)
有很大的改进空间，但我需要离开工作:)
class Program
{
static void Main(string[] args)
{
string email = "\"Jimbo\" <[email protected]>";
Console.WriteLine(parseEmail(email));
}
private static string parseEmail(string inputString)
{
Regex r =
new Regex(@"^((?:(?:(?:[a-zA-Z0-9][\.\-\+_]?)*)[a-zA-Z0-9])+)\@((?:(?:(?:[a-zA-Z0-9][\.\-_]?){0,62})[a-zA-Z0-9])+)\.([a-zA-Z0-9]{2,6})$");
string[] tokens = inputString.Split(' ');
foreach (string s in tokens)
{
string temp = s;
temp = temp.TrimStart('<'); temp = temp.TrimEnd('>');
if (r.Match(temp).Success)
return temp;
}
throw new ArgumentException("Not an e-mail address");
}
}
回答by Rob
It's a bit "rough and ready" but will work for the example you've given:
它有点“粗糙和准备就绪”，但适用于您给出的示例：
string emailAddress, displayname;
string unparsedText = "\"Jimbo\" <[email protected]>";
string[] emailParts = unparsedText.Split(new char[] { '<' });
if (emailParts.Length == 2)
{
displayname = emailParts[0].Trim(new char[] { ' ', '\"' });
emailAddress = emailParts[1].TrimEnd('>');
}
回答by b w
To handle embedded spaces, split on the brackets, as follows:
要处理嵌入的空格，请在括号上拆分，如下所示：
string addrin = "\"Jim Smith\" <[email protected]>";
char[] bracks = {'<','>'};
string[] pieces = addrin.Split(bracks);
pieces[0] = pieces[0]
.Substring(0, pieces[0].Length - 1)
.Replace("\"", string.Empty);
MailAddress ma = new MailAddress(pieces[1], pieces[0]);
回答by Dylan
So, this is what I have done. It's a little quick and dirty, but seems to work.
所以，这就是我所做的。它有点快速和肮脏，但似乎有效。
string emailTo = "\"Jim\" <[email protected]>";
string emailRegex = @"(?:[a-z0-9!#$%&'*+/=?^_`{|}~-]+(?:\.[a-z0-9!#$%&'*+/=?^_`{|}~-]+)*|""(?:[\x01-\x08\x0b\x0c\x0e-\x1f\x21\x23-\x5b\x5d-\x7f]|\[\x01-\x09\x0b\x0c\x0e-\x7f])*"")@(?:(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?|\[(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?|[a-z0-9-]*[a-z0-9]:(?:[\x01-\x08\x0b\x0c\x0e-\x1f\x21-\x5a\x53-\x7f]|\[\x01-\x09\x0b\x0c\x0e-\x7f])+)\])";
string emailAddress = Regex.Match(emailTo.ToLower(), emailRegex).Value;
string displayName = null;
try
{
displayName = emailTo.Substring(0, emailTo.ToLower().IndexOf(emailAddress) - 1);
}
catch
{
// No display name
}
MailAddress addr = new MailAddress(emailAddress, displayName);
Comments?
注释？
