Character.UnicodeBlock中cjk的说明

本文转载自:http://blog.csdn.net/imduan/article/details/54907998

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
* `~!#%^&*=+\\|{};:'\",<>/?○●★☆☉♀♂※¤╬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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