本文为大家分享了Character.UnicodeBlock中cjk的说明,供大家参考,具体内容如下
Character.UnicodeBlock.CJK_UNIFIED_IDEOGRAPHS : 4E00-9FBF:CJK 统一表意符号
Character.UnicodeBlock.CJK_COMPATIBILITY_IDEOGRAPHS :F900-FAFF:CJK 兼容象形文字 Character.UnicodeBlock.CJK_UNIFIED_IDEOGRAPHS_EXTENSION_A :3400-4DBF:CJK 统一表意符号扩展 A
CJK的意思是“Chinese,Japanese,Korea”的简写 ,实际上就是指中日韩三国的象形文字的Unicode编码
Character.UnicodeBlock.GENERAL_PUNCTUATION :2000-206F:常用标点 Character.UnicodeBlock.CJK_SYMBOLS_AND_PUNCTUATION :3000-303F:CJK 符号和标点 Character.UnicodeBlock.HALFWIDTH_AND_FULLWIDTH_FORMS :FF00-FFEF:半角及全角形式
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/** * 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> * `~!#%^&*=+\\|{};:'\",<>/?○●★☆☉♀♂※¤╬の〆 * * @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 = "`~!#%^&*=+\\|{};:'\",<>/?○●★☆☉♀♂※¤╬の〆" ; 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; } |
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原文链接:http://www.cnblogs.com/wangziqiang/p/3810440.html