要匹配的 Java 模式；在 & 中跳过它

Question

Java 正则表达式中是否有模式可以匹配；同时跳过&喜欢文字吗？

Answer 1

您需要正则表达式，例如:(?<!&amp); Demo and Exaplaination

正则表达式的含义:查找前面没有&的;

代码示例:

Pattern pattern = Pattern.compile("(?<!&amp);");
Matcher matcher = pattern.matcher("; abd &amp; this is what ;");
while(matcher.find()){
    System.out.println("find start position "+matcher.start() +" find end position "+matcher.end()+" find for "+ matcher.group(0)); 
}

O/P

find start position 0 find end position 1 find for ;

find start position 25 find end position 26 find for ;