Java过滤Emoji表情

过滤Emoji表情工具类

import org.apache.commons.lang.StringUtils; public class EmojiFilter { 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 source; } else { if (buf.length() == len) { buf = null; return source; } else { return buf.toString(); } } } }

直接调用工具类filterEmoji方法过滤Emoji表情