package com.xw.paintheart.utils;import org.apache.commons.lang.StringUtils;public class EmojiFilterUtils {    private static boolean isEmojiCharacter(char codePoint) {        return (codePoint == 0x0) || (codePoint == 0x9) || (codePoint == 0xA)                || (codePoint == 0xD)                || ((codePoint >= 0x20) && (codePoint <= 0xD7FF))                || ((codePoint >= 0xE000) && (codePoint <= 0xFFFD))                || ((codePoint >= 0x10000) && (codePoint <= 0x10FFFF));    }    /**     * 过滤emoji 或者 其他非文字类型的字符     *     * @param source     * @return     */    public static String filterEmoji(String source) {        if (StringUtils.isBlank(source)) {            return source;        }        StringBuilder buf = null;        int len = source.length();        for (int i = 0; i < len; i++) {            char codePoint = source.charAt(i);            if (isEmojiCharacter(codePoint)) {                if (buf == null) {                    buf = new StringBuilder(source.length());                }                buf.append(codePoint);            }        }        if (buf == null) {            return "";        } else {            if (buf.length() == len) {                buf = null;                return source;            } else {                return buf.toString();            }        }    }}