jquery - 使用 jquery 进行 url 验证的正则表达式

Question

我需要使用正则表达式验证 url。应接受的有效格式如下：

users.kathir.com
www.kathir.com

我目前正在使用以下正则表达式：

^[a-z0-9-]+(\.[a-z0-9-])+(.[a-z])

但它接受 www.google 作为有效的，但它应该只接受 google.com 或 www.google.com。请建议

Answer 1

我用这个，效果很好：

function checkUrl(url){
    return url.match(/(http|ftp|https):\/\/[\w\-_]+(\.[\w\-_]+)+([\w\-\.,@?^=%&:/~\+#]*[\w\-\@?^=%&/~\+#])?/);
}

希望有帮助:)

Answer 2

The answer provided by user will also validate those regex in which there is no .com|edu|org etc at the end to make it more appropriate I have modify the regex which works fine for me and also want to share with you

var pattern = /^(http|https):\/\/[\w\-_]+(\.[\w\-_]+)+([\w\-\.,@?^=%&:/~\+#]*[\w\-\@?^=%&/~\+#])+(.[a-z])?/;
var regex = new RegExp(pattern);
var website_url = $("#website_url").val();// url of the website
if (website_url.match(regex)) {
    return true
} else {
    return false;
}

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