驗證網域中的網址格式

Question

我想驗證網址格式在java中是否正確

以下RegEx僅檢查域.net，.org，.com。

Ex: http://www.google.com/index.jsp 

但我想驗證它與所有的字符串。

Ex: http://www.google.lk/index.jsp 

我目前使用正則表達式：

(http|https)://[-a-zA-Z0-9+&@#/%?=~_|!:,.;]*[-a-zA-Z0-9+&@#/%=~_|]*\\.(com|org|net) 

任何人可以幫助我解決這個問題？

Answer 1

使用Hibernate validation，然後你的領域會像

@URL 
private String myUrl; 

Documentation介紹，這個驗證規則作爲

檢查是否註釋字符序列是根據 RFC2396有效的URL。如果指定了任何可選參數協議，主機或端口 ，則相應的URL片段必須與指定的 值匹配。可選參數regexp和flags允許指定URL必須匹配的其他正則表達式（包括正則表達式標誌） 。

工作得很好，這種解決方案是自記錄

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在另一方面，如果你真的有使用正則表達式，然後有在計算器上有plenty of solutions這個問題。常用的包括

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\x{E1000}-\x{EFFFD}!\$&'\(\)\*\+,;=:@])|[\x{E000}-\x{F8FF}\x{F0000}-\x{FFFFD}|\x{100000}-\x{10FFFD}\/\?])*)?(?:\#(?:(?:%[0-9a-f][0-9a-f]|[-a-z0-9\._~\x{A0}-\x{D7FF}\x{F900}-\x{FDCF}\x{FDF0}-\x{FFEF}\x{10000}-\x{1FFFD}\x{20000}-\x{2FFFD}\x{30000}-\x{3FFFD}\x{40000}-\x{4FFFD}\x{50000}-\x{5FFFD}\x{60000}-\x{6FFFD}\x{70000}-\x{7FFFD}\x{80000}-\x{8FFFD}\x{90000}-\x{9FFFD}\x{A0000}-\x{AFFFD}\x{B0000}-\x{BFFFD}\x{C0000}-\x{CFFFD}\x{D0000}-\x{DFFFD}\x{E1000}-\x{EFFFD}!\$&'\(\)\*\+,;=:@])|[\/\?])*)?$/i 

而且

/((([A-Za-z]{3,9}:(?:\/\/)?)(?:[-;:&=\+\$,\w]+@)?[A-Za-z0-9.-]+|(?:www.|[-;:&=\+\$,\w]+@)[A-Za-z0-9.-]+)((?:\/[\+~%\/.\w-_]*)?\??(?:[-\+=&;%@.\w_]*)#?(?:[\w]*))?)/ 

長度明確提示了爲什麼更容易維護比這個龐然大物正則表達式單一註解。