Emoji表情处理工具类

「爱情、让人受尽委屈。」 2021-12-23 04:27 462阅读 0赞

import java.util.regex.Matcher;
    import java.util.regex.Pattern;
    
    public class EmojiToString {
        /**
         * 将str中的emoji表情转为byte数组
         *
         * @param str
         * @return
         */
        public static String resolveToByteFromEmoji(String str) {
            if(str != null && str != ""){
                Pattern pattern = Pattern
                        .compile("[^(\u2E80-\u9FFF\\w\\s`~!@#\\$%\\^&\\*\$\$_+-？（）——=\\[\\]{}\\|;。，、《》”：；“！……’:'\"<,>\\.?/\\\\*)]");
                Matcher matcher = pattern.matcher(str);
                StringBuffer sb2 = new StringBuffer();
                while (matcher.find()) {
                    matcher.appendReplacement(sb2, resolveToByte(matcher.group(0)));
                }
                matcher.appendTail(sb2);
                return sb2.toString();
            }
            return str;
        }
    
        /**
         * 将str中的byte数组类型的emoji表情转为正常显示的emoji表情
         *
         * @param str
         * @return
         */
        public static String resolveToEmojiFromByte(String str) {
            if(str != null && str != ""){
                Pattern pattern2 = Pattern.compile("<:([[-]\\d*[,]]+):>");
                Matcher matcher2 = pattern2.matcher(str);
                StringBuffer sb3 = new StringBuffer();
                while (matcher2.find()) {
                    matcher2.appendReplacement(sb3, resolveToEmoji(matcher2.group(0)));
                }
                matcher2.appendTail(sb3);
                return sb3.toString();
            }
            return str;
        }
    
        private static String resolveToByte(String str) {
            byte[] b = str.getBytes();
            StringBuffer sb = new StringBuffer();
            sb.append("<:");
            for (int i = 0; i < b.length; i++) {
                if (i < b.length - 1) {
                    sb.append(Byte.valueOf(b[i]).toString() + ",");
                } else {
                    sb.append(Byte.valueOf(b[i]).toString());
                }
            }
            sb.append(":>");
            return sb.toString();
        }
    
        private static String resolveToEmoji(String str) {
            str = str.replaceAll("<:", "").replaceAll(":>", "");
            String[] s = str.split(",");
            byte[] b = new byte[s.length];
            for (int i = 0; i < s.length; i++) {
                b[i] = Byte.valueOf(s[i]);
            }
            return new String(b);
        }
    
    }

转载于:https://www.cnblogs.com/kesimin/p/10025900.html