验证域和IP的表单输入-ajax-ValidateforminputfordomainsandIPs-ajax

how to validate a form field that gets submitted through ajax (below). It needs to validate against a domain (.com, .net, .se etc.) and an IP address. Basically it has to look for at least one dot and at least two letters after last dot.

如何验证通过ajax（下面）提交的表单字段。它需要针对域（.com，.net，.se等）和IP地址进行验证。基本上它必须在最后一个点之后寻找至少一个点和至少两个字母。

Now I only have an empty field validation:

现在我只有一个空字段验证：

var domain = $("input#domain").val();  
        if (domain == "") {  
       $("label#domain_error").show();  
       $("input#domain").focus();  
       return false;  
     } 

Thank you!

谢谢！

1 个解决方案

^(([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])\.){3}([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])$

^(([a-zA-Z]|[a-zA-Z][a-zA-Z0-9\-]*[a-zA-Z0-9])\.)*([A-Za-z]|[A-Za-z][A-Za-z0-9\-]*[A-Za-z0-9])$