java过滤emoji表情

工具类方法：

	public static String filterEmoji(String source) {
		if(source != null)
		{
			Pattern emoji = Pattern.compile ("[\ud83c\udc00-\ud83c\udfff]|[\ud83d\udc00-\ud83d\udfff]|[\u2600-\u27ff]",Pattern.UNICODE_CASE | Pattern.CASE_INSENSITIVE ) ;
			Matcher emojiMatcher = emoji.matcher(source);
			if ( emojiMatcher.find())
			{
				source = emojiMatcher.replaceAll("*");
				return source ;
			}
			return source;
		}
		return source;
	}

调用：

payOrder.setTradeNote(StringUtils.filterEmoji(req.getTradeNote()));