密码和电话号码验证

Question

我们假设您希望编辑文本字段中包含以下内容。你会用什么正则表达式？

对于我用过的电子邮件：

if(!email.matches("[a-zA-Z0-9._-]+@[a-z]+.[a-z]+")) {
    etEmail.setError("Invalid Email Address");
}

但我如何与其他人一起去？

提前致谢！

Answer 1

对于密码，您可以尝试：

if(!(password.length() >= 6) || !password.matches(".*?[A-Z].*") || !password.matches(".*?[a-z].*") || !password.matches(".*?[0-9].*") || !password.matches(".*?[\\W\\-_].*")) {
    System.out.println("Password Invalid");
}

说明 -

.*? - indicates that the regex may start with zero-or-more characters, before being followed by<br>
    [A-Z]     - a Capital Letter from 'A' to 'Z'
    [a-z]     - a lowercase letter from 'a' to 'z'
    [0-9]     - a digit from 0-9
    [\\W\\-_] - a non-word character (not letter, digit or dash), a dash, or underscore
.* - indicates that after the special character (or whatever the requirement for that condition is), there may be zero-or-more characters.

这种方法可能看起来有点冗长，但肯定更容易阅读和理解。

Answer 2

代表姓名： - if（！name.matches（＆＃34; [a-zA-Z0-9]＆＃34;））{ //在这里显示错误}

用于电子邮件：if（！Patterns.EMAIL_ADDRESS.matcher（target）.matches（））{ /在这里显示错误}

for mobile： - if（mobile.length＆lt; 10）{ //在这里显示错误}