Java 实现字符串（json） unicode编码与中文互转

unicode编码与中文互转

/**
     * 汉字转化为Unicode编码
     *
     * @param CN 待转化的中文
     * @return 返回unicode编码
     */
    public static String CNToUnicode(String CN) {

        try {
            StringBuffer out = new StringBuffer("");
            //直接获取字符串的unicode二进制
            byte[] bytes = CN.getBytes("unicode");
            //然后将其byte转换成对应的16进制表示即可
            for (int i = 0; i < bytes.length - 1; i += 2) {
                out.append("\u");
                String str = Integer.toHexString(bytes[i + 1] & 0xff);
                for (int j = str.length(); j < 2; j++) {
                    out.append("0");
                }
                String str1 = Integer.toHexString(bytes[i] & 0xff);
                out.append(str1);
                out.append(str);
            }
            return out.toString();
        } catch (UnsupportedEncodingException e) {
            e.printStackTrace();
            return null;
        }
    }

    /**
     * unicode编码转换为中文
     *
     * @param unicodeStr 待转化的编码
     * @return 返回中文
     */
    public static String UnicodeToCN(String unicodeStr) {
        Pattern pattern = Pattern.compile("(\\u(\p{XDigit}{4}))");
        Matcher matcher = pattern.matcher(unicodeStr);
        char ch;
        while (matcher.find()) {
            String group = matcher.group(2);
            ch = (char) Integer.parseInt(group, 16);
            String group1 = matcher.group(1);
            unicodeStr = unicodeStr.replace(group1, ch + "");
        }

        return unicodeStr.replace("\", "").trim();
    }

    public static void main(String[] args) throws Exception {
        String str = "{"msg": "\u6570\u636e\u7c7b\u578b\u6709\u8bef, \u5b57\u6bb5\u540d\u4e3a:\u5206\u9694\u7ebf\u989c\u8272", "header_list": ["\u8868\u540d", "\u5143\u7d20ID", "\u5b57\u6bb5\u540d", "\u5b57\u6bb5\u503c"], "data_list": ["\u8f66\u9053\u5206\u9694\u7ebf", 65374, "\u5206\u9694\u7ebf\u989c\u8272", 999]}";

//        String rs = "\u6570\u636e\u7c7b\u578b\u6709\u8bef, \u5b57\u6bb5\u540d\u4e3a:\u5206\u9694\u7ebf\u989c\u8272";

        str = UnicodeToCN(str);
        System.out.println(str);

    }

unicode编码与中文互转 /** * 汉字转化为Unicode编码 * * @param CN 待转化的中文 * @return 返回unicode编码 */ public static String CNToUnicode(String CN) { try { StringBuffer out = new StringBuffer(""); //直接获取字符串的unicode二进制 byte[] bytes = CN.getBytes("unicode"); //然后将其byte转换成对应的16进制表示即可 for (int i = 0; i < bytes.length - 1; i += 2) { out.append("\u"); String str = Integer.toHexString(bytes[i + 1] & 0xff); for (int j = str.length(); j < 2; j++) { out.append("0"); } String str1 = Integer.toHexString(bytes[i] & 0xff); out.append(str1); out.append(str); } return out.toString(); } catch (UnsupportedEncodingException e) { e.printStackTrace(); return null; } } /** * unicode编码转换为中文 * * @param unicodeStr 待转化的编码 * @return 返回中文 */ public static String UnicodeToCN(String unicodeStr) { Pattern pattern = Pattern.compile("(\\u(\p{XDigit}{4}))"); Matcher matcher = pattern.matcher(unicodeStr); char ch; while (matcher.find()) { String group = matcher.group(2); ch = (char) Integer.parseInt(group, 16); String group1 = matcher.group(1); unicodeStr = unicodeStr.replace(group1, ch + ""); } return unicodeStr.replace("\", "").trim(); } public static void main(String[] args) throws Exception { String str = "{"msg": "\u6570\u636e\u7c7b\u578b\u6709\u8bef, \u5b57\u6bb5\u540d\u4e3a:\u5206\u9694\u7ebf\u989c\u8272", "header_list": ["\u8868\u540d", "\u5143\u7d20ID", "\u5b57\u6bb5\u540d", "\u5b57\u6bb5\u503c"], "data_list": ["\u8f66\u9053\u5206\u9694\u7ebf", 65374, "\u5206\u9694\u7ebf\u989c\u8272", 999]}"; // String rs = "\u6570\u636e\u7c7b\u578b\u6709\u8bef, \u5b57\u6bb5\u540d\u4e3a:\u5206\u9694\u7ebf\u989c\u8272"; str = UnicodeToCN(str); System.out.println(str); }