src/main/java/io/github/biezhi/wechat/utils/WeChatUtils.java
public static String match(String reg, String text) {
        Pattern pattern = Pattern.compile(reg);
        Matcher m       = pattern.matcher(text);
        if (m.find()) {
            return m.group(1);
        }
        return null;
    }
public static String match(String reg, String text) {
        Pattern pattern = Pattern.compile(reg);
        Matcher m       = pattern.matcher(text);
        if (m.find()) {
            return m.group(1);
        }
        return null;
    }
正则匹配

@param reg
@param text
@return