如何翻译"Lorem 3 ipsum dolor sit amet"?进入SEO友好的"Lorem-3-ipsum-dolor-sit-amet"在Java中? [英] How to translate "Lorem 3 ipsum dolor sit amet" into SEO friendly "Lorem-3-ipsum-dolor-sit-amet" in Java?
问题描述
在我的博客应用中，用户可以输入任何文本作为其条目的标题，然后我根据该文本生成URL.
In my blog app, a user can enter any text as a title for their entry and then I generate a URL based on the text.
我验证其标题以确保其中仅包含字母和数字.
如果他们输入类似
Lorem 3 ipsum dolor sit amet
如何生成此文本的SEO友好版本:
how could I generate the more SEO friendly version of this text:
Lorem-3-ipsum-dolor-sit-amet
推荐答案
实际上，它并不像用连字符替换空格那样简单.您通常还希望将其全部改成小写，并规范化/替换变音符号，如á，ö，è等，它们都是无效 URL字符.唯一有效的字符被列为未保留的字符".在此Wikipedia页面的第二个表格中.
It's in practice really not as simple as replacing spaces by hypens. You would often also like to make it all lowercase and normalize/replace diacritics, like á, ö, è and so on which are invalid URL characters. The only valid characters are listed as "Unreserved characters" in the 2nd table of this Wikipedia page.
这种功能的外观如下:
public static String prettyURL(String string) {
return Normalizer.normalize(string.toLowerCase(), Form.NFD)
.replaceAll("\\p{InCombiningDiacriticalMarks}+", "")
.replaceAll("[^\\p{Alnum}]+", "-");
}
它基本上执行以下操作:
It does basically the following:
- 小写字符串
- 删除合并的变音标记(在规范化工具将其从实际提取"出来之后)字符)
- 用连字符替换非字母数字字符
- lowercase the string
- remove combining diacritical marks (after the Normalizer has "extracted" them from the actual chars)
- replace non-alphanumeric characters by hyphens
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