java - 从字符串中过滤掉 UTF-8 标点符号

Question

从字符串中过滤掉所有 UTF-8 标点字符和符号(如✀✁✂✃✄✅✆✇✈等)的最佳和最有效方法是什么。简单地过滤掉所有不在 a-z、A-Z 和 0-9 中的字符不是一种选择，因为我想保留来自其他语言的字母(ą、ę、ó 等)提前致谢。

Answer 1

您可以使用 \p{L} 来匹配所有 unicode 字母。示例:

public static void main(String[] args) throws IOException {
    String[] test = {"asdEWR1", "ąęóöòæûùÜ", "sd,", "✀","✁","✂","✃","✄","✅","✆","✇","✈"};
    for (String s : test)
        System.out.println(s + " => " + s.replaceAll("[^\\p{L}^\\d]", ""));
}

输出:

asdEWR1 => asdEWR1
ąęóöòæûùÜ => ąęóöòæûùÜ
sd, => sd
✀ => 
✁ => 
✂ => 
✃ => 
✄ => 
✅ => 
✆ => 
✇ => 
✈ =>