Java - 由定界符分割

Question

给定_<A_>_<B_>_<Z_> , 我想提取 A, B, C在数组中。

基本上_<是起始分隔符，_>是结束分隔符。

Answer 1

您可以使用 lookaround assertions仅匹配标签的内容。

String text = "_<A_>_<B_>_<Z_>";

List<String> Result = new ArrayList<String>();

Pattern p = Pattern
    .compile("(?<=_<)" + // Lookbehind assertion to ensure the opening tag before
        ".*?" +          // Match a less as possible till the lookahead is true 
        "(?=_>)"         // Lookahead assertion to ensure the closing tag ahead
        );
Matcher m = p.matcher(text);
while(m.find()){
    Result.add(m.group(0));
}