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邮箱地址验证有很多方法。在浏览器端，js邮箱验证可以通过正则表达式检测。
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代码如下 |
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function isEmail(email) {
return /^((([a-z]|d|[!#$%&'*+-/=?^_`{|}~]|[u00A0-uD7FFuF900-uFDCFuFDF0-uFFEF])+(.([a-z]|d|[!#$%&'*+-/=?^_`{|}~]|[u00A0-uD7FFuF900-uFDCFuFDF0-uFFEF])+)*)|((x22)((((x20|x09)*(x0dx0a))?(x20|x09)+)?(([x01-x08x0bx0cx0e-x1fx7f]|x21|[x23-x5b]|[x5d-x7e]|[u00A0-uD7FFuF900-uFDCFuFDF0-uFFEF])|(\([x01-x09x0bx0cx0d-x7f]|[u00A0-uD7FFuF900-uFDCFuFDF0-uFFEF]))))*(((x20|x09)*(x0dx0a))?(x20|x09)+)?(x22)))@((([a-z]|d|[u00A0-uD7FFuF900-uFDCFuFDF0-uFFEF])|(([a-z]|d|[u00A0-uD7FFuF900-uFDCFuFDF0-uFFEF])([a-z]|d|-|.|_|~|[u00A0-uD7FFuF900-uFDCFuFDF0-uFFEF])*([a-z]|d|[u00A0-uD7FFuF900-uFDCFuFDF0-uFFEF]))).)+(([a-z]|[u00A0-uD7FFuF900-uFDCFuFDF0-uFFEF])|(([a-z]|[u00A0-uD7FFuF900-uFDCFuFDF0-uFFEF])([a-z]|d|-|.|_|~|[u00A0-uD7FFuF900-uFDCFuFDF0-uFFEF])*([a-z]|[u00A0-uD7FFuF900-uFDCFuFDF0-uFFEF])))$/i.test(email);
}
或
function validateEmail(elementValue)
{
var emailPattern = /^[a-zA-Z0-9._]+[a-zA-Z0-9]+@[a-zA-Z0-9]+.[a-zA-Z]{2,4}$/;
return emailPattern.test(elementValue);
}
function checkEmail(mail) {
return /^[w-]+(.[w-]+)*@([a-z0-9-]+(.[a-z0-9-]+)*?.[a-z]{2,6}|(d{1,3}.){3}d{1,3})(:d{4})?$/.test(mail);
}
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调用很简单:
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代码如下 |
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if (isEmail('youremail@yourdomain.com')){ console.log(' www.45it.net This is email is valid'); }View Code
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如果是进行服务器端验证。像php，则最简单的莫过于:
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代码如下 |
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$a='/([w._]{2,10})@(w{1,}).([a-z]{2,4})/';
$b='1412424545645454545454545k@qq.com';
if(preg_match($a,$b)){
echo "电子邮件合法";
}else{
echo "电子邮件不合法啊";
}
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你要判断一整段字符串是否都匹配就要用断言。如^ $
/^([w._]{2,10})@(w{1,}).([a-z]{2,4})$/
注意头和尾加上了^ $
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