Character.UnicodeBlock中cjk的说明详解

/**   * 校验一个字符是否是汉字   *    * @param c   *      被校验的字符   * @return true代表是汉字   */  public static boolean isChineseChar(char c) {    try {      return String.valueOf(c).getBytes("UTF-8").length > 1;    } catch (UnsupportedEncodingException e) {      e.printStackTrace();      return false;    }  }  /**   * 验证字符串内容是否包含下列非法字符<br>   * `~!#%^&*=+//|{};:'/",<>/?○●★☆♀♂※¤の   *    * @param content   *      字符串内容   * @return 't'代表不包含非法字符，otherwise代表包含非法字符。   */  public static char validateLegalString(String content) {    String illegal = "`~!#%^&*=+//|{};:'/",<>/?○●★☆♀♂※¤の";    char isLegalChar = 't';    L1: for (int i = 0; i < content.length(); i++) {      for (int j = 0; j < illegal.length(); j++) {        if (content.charAt(i) == illegal.charAt(j)) {          isLegalChar = content.charAt(i);          break L1;        }      }    }    return isLegalChar;  }  /**   * 验证是否是汉字或者0-9、a-z、A-Z   *    * @param c   *      被验证的char   * @return true代表符合条件   */  public static boolean isRightChar(char c) {    return isChinese(c) || isWord(c);  }  /**   * 校验某个字符是否是a-z、A-Z、_、0-9   *    * @param c   *      被校验的字符   * @return true代表符合条件   */  public static boolean isWord(char c) {    String regEx = "[//w]";    Pattern p = Pattern.compile(regEx);    Matcher m = p.matcher("" + c);    return m.matches();  }  /**   * 判定输入的是否是汉字   *    * @param c   *      被校验的字符   * @return true代表是汉字   */  public static boolean isChinese(char c) {    Character.UnicodeBlock ub = Character.UnicodeBlock.of(c);    if (ub == Character.UnicodeBlock.CJK_UNIFIED_IDEOGRAPHS        || ub == Character.UnicodeBlock.CJK_COMPATIBILITY_IDEOGRAPHS        || ub == Character.UnicodeBlock.CJK_UNIFIED_IDEOGRAPHS_EXTENSION_A        || ub == Character.UnicodeBlock.GENERAL_PUNCTUATION        || ub == Character.UnicodeBlock.CJK_SYMBOLS_AND_PUNCTUATION        || ub == Character.UnicodeBlock.HALFWIDTH_AND_FULLWIDTH_FORMS) {      return true;    }    return false;  }  /**   * 校验String是否全是中文   *    * @param name   *      被校验的字符串   * @return true代表全是汉字   */  public static boolean checkNameChese(String name) {    boolean res = true;    char[] cTemp = name.toCharArray();    for (int i = 0; i < name.length(); i++) {      if (!isChinese(cTemp[i])) {        res = false;        break;      }    }    return res;  }