StringEscapeUtils 找出字符串是否被转义

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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