StringEscapeUtils 找出字符串是否被转义 [英] StringEscapeUtils find out if string is escaped

问题描述

我一直在使用 StringEscapeUtils.escapeHTML 来转义 URL.是否有类似的东西可以找出字符串是否已经转义?

I've been using StringEscapeUtils.escapeHTML to escape URLs. Is there something similar to find out if the string is already escaped?

推荐答案

我不知道，但自己做一个很容易:

Not that I know of, but it is pretty easy to do one yourself:

public boolean isEscaped(String url) {
    return !url.equals(StringEscapeUtils.unEscapeHTML(url));
}

请注意，正如@themel 指出的那样，决定是否对随机字符串进行转义是不可能的，如果您对随机字符串进行尝试，可能会得到很多误报.但是，我假设您至少可以控制您的字符串在此处的外观.

Note that deciding if a random string is escaped or not is impossible as @themel notes, you can get a lot of false positives if you try this with random strings. However I'm assuming that you at least have some control over what your strings look like here.

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