Character.UnicodeBlock中cjk的说明

转: http://www.cnblogs.com/wangziqiang/p/3810440.html

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

枚举说明

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
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

常用函数

/*** 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;}