带有javascript的电子邮件查找器正则表达式

Question

I have this regex for matching email addresses in a string.

[a-zA-Z0-9,!#\$%&'\*\+/=\?\^_`\{\|}~-]+(\.[a-zA-Z0-9,!#\$%&'\*\+/=\?\^_`\{\|}~-]+)*@[a-zA-Z0-9-]+(\.[a-zA-Z0-9-]+)*\.([a-zA-Z]{2,})

It is not the best regex in the world but good enought for my use.

When I am using this with javascript like that:

var emails = string.match("[a-zA-Z0-9,!#\$%&'\*\+/=\?\^_`\{\|}~-]+(\.[a-zA-Z0-9,!#\$%&'\*\+/=\?\^_`\{\|}~-]+)*@[a-zA-Z0-9-]+(\.[a-zA-Z0-9-]+)*\.([a-zA-Z]{2,})");

I am matching only the first email address, which is normal because I am not using the g modifier.

The problem is that when I am using the g modifier like that:

var emails = email[0].match("[a-zA-Z0-9,!#\$%&'\*\+/=\?\^_`\{\|}~-]+(\.[a-zA-Z0-9,!#\$%&'\*\+/=\?\^_`\{\|}~-]+)*@[a-zA-Z0-9-]+(\.[a-zA-Z0-9-]+)*\.([a-zA-Z]{2,})g");

the var emails is null, so my match is not working.

If you can please help me with this.

Thank you.

Answer 1

尝试：

var emails = yourString.match(/([a-zA-Z0-9._-]+@[a-zA-Z0-9._-]+\.[a-zA-Z0-9._-]+)/gi);

Answer 2

试试这个我在系统中的servlet验证过滤器中使用过它，我不知道它是否可以在javascript中工作

"^[a-zA-Z0-9._]+@[a-zA-Z0-9._]{3,}$"