java实现中文或其他语言及标点符号等转换成unicode字符串,或unicode的16进制码转换回文字或符号等

package org.analysisitem20181016.test;

public class Code128Test2019052201 {

    public static final String UNICODE_PREFIX = "\\u";

    public static void main(String[] args) {

        String testStr = "丽塔·洛丝薇瑟";

        String unicodeText1 = encodeToUnicodeText(testStr);

        String unicodeText2 = encodeToUnicodeTextWithoutPrefix(testStr);

        System.out.println(unicodeText1);

        System.out.println(unicodeText2);

        String text = decodeToText(unicodeText2);

        System.out.println(text);

        testStr = "ラピスラズリ(Dawn)";

        unicodeText1 = encodeToUnicodeText(testStr);

        unicodeText2 = encodeToUnicodeTextWithoutPrefix(testStr);

        System.out.println(unicodeText1);

        System.out.println(unicodeText2);

        text = decodeToText(unicodeText2);

        System.out.println(text);

    }

    public static String decodeToText(final String unicodeText) {

        String text =  "";

        for(int i = 0; i < unicodeText.length(); i += 4) {

            String currentUnicodeText = unicodeText.substring(i, i + 4);

            char currentText = (char) Integer.parseInt(currentUnicodeText, 16);

            text += currentText;

        }

        return text;

    }

    public static String encodeToUnicodeTextWithoutPrefix(final String text) {

        char[] utfChar = text.toCharArray();

        String unicodeStr = "";

        for (int i = 0; i < utfChar.length; i++) {

            String hexB = Integer.toHexString(utfChar[i]);

            while (hexB.length() < 4) {

                hexB = "0" + hexB;

            }

            unicodeStr += hexB;

        }

        return unicodeStr;

    }

    public static String encodeToUnicodeText(final String text) {

        char[] utfChar = text.toCharArray();

        String unicodeStr = "";

        for (int i = 0; i < utfChar.length; i++) {

            String hexB = Integer.toHexString(utfChar[i]);

            while (hexB.length() < 4) {

                hexB = "0" + hexB;

            }

            hexB = UNICODE_PREFIX + hexB;

            unicodeStr += hexB;

        }

        return unicodeStr;

    }

}