将Unicode编码转换为汉字

	public String convert(String utfString){
		StringBuilder sb = new StringBuilder();
		int i = -1;
		int pos = 0;
		
		while((i=utfString.indexOf("\\u", pos)) != -1){
			sb.append(utfString.substring(pos, i));
			if(i+5 < utfString.length()){
				pos = i+6;
				sb.append((char)Integer.parseInt(utfString.substring(i+2, i+6), 16));
			}
		}
		
		return sb.toString();
	}