Java 使用正则表达式匹配字符串中半角括号中间的所有内容

使用 Pattern 和 Matcher 匹配字符串中 () 之间的内容。示例代码如下：

import java.util.regex.Matcher;
import java.util.regex.Pattern;

System.out.println("==================== start ====================");
String ua = "Mozilla/5.0 (Linux; Android 11; M2102K1C Build/RKQ1.201112.002; wv) " +
        "AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/90.0.4430.210 " +
        "Mobile Safari/537.36 hap/1.10/xiaomi org.hapjs.mockup/1.10.0.0 " +
        "me.liujiajia.app.sample/1.3.1 ({\"packageName\":\"org.hapjs.mockup\"," +
        "\"type\":\"other\",\"extra\":{}})";
Matcher matcher = Pattern.compile("(?<=\\()[^\\)]+").matcher(ua);
while (matcher.find()) {
    String group = matcher.group();
    System.out.println(group);
}
System.out.println("===================== end =====================");