Java 将汉字转 Unicode 码

	public static void main(String[] args) {
		System.out.println(toUnicode("开源中国社区"));
	}

	public static String toUnicode(String s) {
		String as[] = new String[s.length()];
		String s1 = "";
		for (int i = 0; i < s.length(); i++) {
			as[i] = Integer.toHexString(s.charAt(i) & 0xffff);
			s1 = s1 + "\\u" + as[i];
		}
		return s1;
	}