Java中文和字母與16進制ASCII碼的轉換

沒事兒看了看這個，寫倆方法方便以後用

	/**
	 * 字符串中每個字母轉化爲16進制
	 * @param letter
	 * @return
	 */
	public static String letterToH(String letter) {
		StringBuilder sb = new StringBuilder();
		for (int i = 0; i < letter.length(); i++) {
			char c = letter.charAt(i);
			sb.append(Integer.toHexString(c));
			sb.append(", ");
		}
		sb.deleteCharAt(sb.length() - 2);
		return sb.toString();
	}

	/**
	 * 16進制轉化爲字母
	 * @param hex  要轉化的16進制數，用逗號隔開
	 * 		如：53,68,61,64,6f,77
	 * @return
	 */
	public static String hexTolLetter(String hex) {
		StringBuilder sb = new StringBuilder();
		String[] split = hex.split(",");
		for (String str : split) {
			int i = Integer.parseInt(str, 16);
			sb.append((char)i);
		}
		return sb.toString();
	}