Question

有人可以帮助我使用正则表达式验证＆＃34; url＆＃34;以＆＃34; http＆＃34;开头或＆＃34; https＆＃34;像这样的例子：

http://www.url.com , 
http://url.com , 
http://domain.subdomain.com,
https://www.url.com , 
https://url.com , 
https://domain.subdomain.com

和没有http和https的网址就像这样的例子：

www.url.com
url.com
domain.subdomain.com

我有这个代码，它几乎完美无缺：

var regex = new RegExp("(http://|https://|)(www\b?|[a-zA-Z0-9]+[.]{1})([a-    zA-Z0-9]+[.]{1}){1}[a-zA-z0-9]+(\\/{1}[a-zA-Z0-9]+)*\\/?$", "i");

但是如果你输入这个例子：

htttttp://wwww.address.com
hhtttttpp://wwww.address.com
httpp://wwww.address.com

有些像那样

表达式批准了网址，这是错误的，有人可以帮我这个吗？

Answer 1

＆＃13;

document.body.innerHTML += validateUrl('http://www.google-com.123.com') + '<br />'; 
document.body.innerHTML += validateUrl('http://www.google-com.123') + '<br />'; 
document.body.innerHTML += validateUrl('https://www.google-com.com') + '<br />'; 
document.body.innerHTML += validateUrl('http://google-com.com') + '<br />';
document.body.innerHTML += validateUrl('http://google.com') + '<br />'; 
document.body.innerHTML += validateUrl('google.com') + '<br />';    
document.body.innerHTML += validateUrl('htttttp://wwww.address.com') + '<br />'; 
document.body.innerHTML += validateUrl('hhtttttpp://wwww.address.com') + '<br />'; 
document.body.innerHTML += validateUrl('httpp://wwww.address.com') + '<br />'; 

function validateUrl(value){
      return /^(https?|ftp):\/\/(((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:)*@)?(((\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5])\.(\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5])\.(\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5])\.(\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5]))|((([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))\.)+(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))\.?)(:\d*)?)(\/((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)+(\/(([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)*)*)?)?(\?((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)|[\uE000-\uF8FF]|\/|\?)*)?(\#((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)|\/|\?)*)?$/i.test(value);
    }

＆＃13;

原始回答： https://stackoverflow.com/a/15855457/1918648

javascript验证的正则表达式启动http，https并且没有http，https

1 个答案: