java 微信昵称过滤表情

package com.ict.compent.wx;

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

/**
 * 微信过滤表情
 * @author hsw
 *
 */
public class EmojiFilter {

    public static String filterEmoji(String source) {
        if (source == null) {
            return source;
        }
        Pattern emoji = Pattern.compile("[ud83cudc00-ud83cudfff]|[ud83dudc00-ud83dudfff]|[u2600-u27ff]",
                Pattern.UNICODE_CASE | Pattern.CASE_INSENSITIVE);
        Matcher emojiMatcher = emoji.matcher(source);
        if (emojiMatcher.find()) {
            source = emojiMatcher.replaceAll("*");
            return source;
        }
        return source;
    }
}