如何翻译“Lorem 3 ipsum dolor sat amet”进入 SEO 友好的“Lorem-3-ipsum-dolor-sit-amet”在Java中？

发布于 2024-09-17 14:39:23 字数 260 浏览 11 评论 0原文

在我的博客应用程序中，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一个 URL。

我验证他们的标题以确保它仅包含字母和数字。

如果他们输入类似

Lorem 3 ipsum dolor sit amet

我如何生成此文本的更 SEO 友好版本的内容：

Lorem-3-ipsum-dolor-sit-amet

原文

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.

I validate their title to make sure it only contains letters and numbers.

If they enter something like

Lorem 3 ipsum dolor sit amet

how could I generate the more SEO friendly version of this text:

Lorem-3-ipsum-dolor-sit-amet

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荆棘i 2024-09-24 14:40:20

因为它似乎不允许我发表评论。我会这样做：

String s = "Lorem 3 ipsum dolor sit amet"
s = s.replaceAll(" ","_");

使用下划线字符代替，因为它是一个空格指示符。自从我完成 java 以来已经有一段时间了，但我知道 .Net 中有一个函数可以清理文件名，这样它对文件系统来说是安全的。我有很多相同的一般规则适用于 URL，因此如果您可以在 API 中找到一个，那么值得一看。

Since it won't seem to allow me to comment. I would do:

String s = "Lorem 3 ipsum dolor sit amet"
s = s.replaceAll(" ","_");

Using the Underscore character instead because it is a space indicator. Its been a while since I've done java but I know there is a function in .Net that will cleanup a file name so its safe for the file system. I lot of the same general rules applies to a URL so if you can find one in the API it be worth taking a look.

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疯到世界奔溃 2024-09-24 14:40:11

String s = "Lorem 3 ipsum dolor sit amet"
s = s.replaceAll(" ","-");

String s = "Lorem 3 ipsum dolor sit amet"
s = s.replaceAll(" ","-");

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A君 2024-09-24 14:40:01

实际上，这并不像用连字符替换空格那么简单。您通常还希望将其全部小写并标准化/替换变音符号，例如 á、ö、è 等无效 URL 字符。唯一有效的字符在此维基百科页面。

这样的函数如下所示：

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：

小写字符串
删除组合变音符号（在规范化器从实际字符中“提取”它们之后）
用连字符替换非字母数字字符

另请参阅：

JSP 2.0 SEO 友好链接编码

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.

Here's how such a function can look like:

public static String prettyURL(String string) {
    return Normalizer.normalize(string.toLowerCase(), Form.NFD)
        .replaceAll("\\p{InCombiningDiacriticalMarks}+", "")
        .replaceAll("[^\\p{Alnum}]+", "-");
}

It does basically the following:

lowercase the string
remove combining diacritical marks (after the Normalizer has "extracted" them from the actual chars)
replace non-alphanumeric characters by hyphens