<dependency>
    <groupId>com.github.promeg</groupId>
    <artifactId>tinypinyin</artifactId>
    <version>2.0.3</version>
</dependency>

@Test
void test01() {
    Pinyin.init(Pinyin.newConfig().with(CnCityDict.getInstance()));
    String pinyin = Pinyin.toPinyin("中國", " ");
    System.out.println(pinyin); // ZHONG GUO

    String pinyin1 = Pinyin.toPinyin('中');
    System.out.println(pinyin1); // ZHONG

    System.out.println(Pinyin.isChinese('中')); // true
    System.out.println(Pinyin.isChinese('C')); // false
}

<dependency>
    <groupId>com.github.stuxuhai</groupId>
    <artifactId>jpinyin</artifactId>
    <version>1.1.8</version>
</dependency>

@Test
void test02() throws PinyinException {
    // 轉(zhuǎn)換為帶聲調(diào)拼音
    String pinyin1 = PinyinHelper.convertToPinyinString(
            "重慶銀行", " ", PinyinFormat.WITH_TONE_MARK);
    System.out.println(pinyin1); // zhòng qìng yín háng


    // 轉(zhuǎn)換為數(shù)字聲調(diào)
    String pinyin2 = PinyinHelper.convertToPinyinString(
            "重慶銀行", " ", PinyinFormat.WITH_TONE_NUMBER);
    System.out.println(pinyin2); // zhong4 qing4 yin2 hang2

    // 不帶聲調(diào)
    String pinyin3 = PinyinHelper.convertToPinyinString(
            "重慶銀行", " ", PinyinFormat.WITHOUT_TONE);
    System.out.println(pinyin3); // zhong qing yin hang

    // 獲取拼音首字母
    String shortPinyin = PinyinHelper.getShortPinyin("你好精神小伙");
    System.out.println(shortPinyin); // nhjsxh

    // 檢查是否為多音字
    String[] duoyin = PinyinHelper.convertToPinyinArray('重');
    for (String py : duoyin) {
        System.out.println(py); // zhòng, chóng
    }
}

 <dependency>
    <groupId>com.belerweb</groupId>
    <artifactId>pinyin4j</artifactId>
    <version>2.5.1</version>
</dependency>

@Test
void test03() throws BadHanyuPinyinOutputFormatCombination {
    HanyuPinyinOutputFormat format = new HanyuPinyinOutputFormat();
    // 配置輸出格式
    format.setToneType(HanyuPinyinToneType.WITHOUT_TONE); // 不帶聲調(diào)
    format.setVCharType(HanyuPinyinVCharType.WITH_V);     // 使用v表示ü

    String[] duoyin = PinyinHelper.toHanyuPinyinStringArray('重', format);
    for (String py : duoyin) {
        System.out.println(py); // zhong, chong
    }

    String hanYuPinyinString = PinyinHelper.toHanYuPinyinString("中國國歌", format, " ", true);
    System.out.println(hanYuPinyinString); // zhong guo guoge

    String[] duoyin2 = PinyinHelper.toTongyongPinyinStringArray('重');
    for (String py : duoyin2) {
        System.out.println(py);// jhong4, chong2
    }
}

<dependency>
    <groupId>com.hankcs</groupId>
    <artifactId>hanlp</artifactId>
    <version>portable-1.8.6</version>
</dependency>

@Test
void test04() {
    List<Pinyin> list = HanLP.convertToPinyinList("重");
    for (Pinyin pinyin : list) {
        System.out.println(pinyin.getPinyinWithoutTone());
        System.out.println(pinyin.getPinyinWithToneMark());
        System.out.println(pinyin.getFirstChar());
        System.out.println(pinyin.getShengmu());
        System.out.println(pinyin.getYunmu());
        System.out.println(pinyin.getTone());
        System.out.println(pinyin.getHead());
        System.out.println("-------------------");
    }


    String pinyinString = HanLP.convertToPinyinString("重載不是重任", " ", false);
    System.out.println(pinyinString);

    System.out.println(HanLP.convertToTraditionalChinese("用筆記本電腦寫程序"));
    System.out.println(HanLP.convertToSimplifiedChinese("「以後等妳當(dāng)上皇后，就能買士多啤梨慶祝了」"));
}