[英]using regex in java for validate email
I am trying to validate a certain subset of the e-mail format with regular expressions, but what I've tried so far doesn't quite work. 我正在尝试使用正则表达式来验证电子邮件格式的某些子集,但是到目前为止,我还没有尝试过。 This is my regex (Java): 这是我的正则表达式(Java):
boolean x = l.matches(
"^[_A-Za-z0-9-\\\\+]+(\\\\.[_A-Za-z0-9-]+)*@\"\n" +"+ \"[A-Za-z0-9-]+(\\\\.[A-Za-z0-9]+)*(\\\\.[A-Za-z]{2,})$"
);
Thse are the conditions that the string has to match: 这些是字符串必须匹配的条件:
- www.fightclub.uk www.fightclub.uk
- www.fightclub.lk www.fightclub.lk
- www.fightclub.sa www.fightclub.sa
- www.fightclub.cc www.fightclub.cc
- www.fightclub.jp www.fightclub.jp
- www.fightclub.se www.fightclub.se
- www.fightclub.xy www.fightclub.xy
- www.fightclub.gi www.fightclub.gi
- www.fightclub.rl www.fightclub.rl
- www.fightclub.ss www.fightclub.ss
examples: 例子:
sonia6@fightclub.com
is valid
sonia6@fightclub.com
valid
am@fightclub2.lk
is invalid
am@fightclub2.lk
invalid
You can use: 您可以使用:
^[a-z0-9]{3,6}@fightclub\.(?:uk|lk|sa|cc|jp|se|xy|gi|rl|ss)$
^
indicates start of string ^
表示字符串的开头 [a-z0-9]{3,6}
lowercase letters or number with length 3-6 characters [a-z0-9]{3,6}
小写字母或数字,长度为3-6个字符 @fightclub
其次是@fightclub
\\.
然后是句点\\.
(?:
indicate that it's a non-capturing group. All your domain extensions are listed here. 后跟一个域列表(?:
表示它是一个非捕获组。此处列出了所有域扩展名。 $
indicates end of string $
表示字符串的结尾 DEMO: https://regex101.com/r/rYYXYA/1 演示: https : //regex101.com/r/rYYXYA/1
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