Méthodes de vérification des caractères spéciaux et du chinois en Java

/**
 * 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>
 * `~!#%^&*=+\\|{};:&#39;\",<>/?○●★☆☉♀♂※¤╬の〆
 * 
 * @param content
 *  字符串内容
 * @return &#39;t&#39;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 = "`~!#%^&*=+\\|{};:&#39;\",<>/?○●★☆☉♀♂※¤╬の〆";
 char isLegalChar = &#39;t&#39;;
 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;
}