java pinyin4j

pom:

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

demo:

    public static String getAllPinyin(String hanzi) {
        //输出格式设置
        HanyuPinyinOutputFormat format = new HanyuPinyinOutputFormat();
        /**
         * 输出大小写设置
         * LOWERCASE:输出小写
         * UPPERCASE:输出大写
         */
        format.setCaseType(HanyuPinyinCaseType.LOWERCASE);

        /**
         * 输出音标设置
         * WITH_TONE_MARK:直接用音标符（必须设置WITH_U_UNICODE，否则会抛出异常）
         * WITH_TONE_NUMBER：1-4数字表示音标
         * WITHOUT_TONE：没有音标
         */
        format.setToneType(HanyuPinyinToneType.WITHOUT_TONE);

        /**
         * 特殊音标ü设置
         *
         * WITH_V：用v表示ü
         * WITH_U_AND_COLON：用"u:"表示ü
         * WITH_U_UNICODE：直接用ü
         */
        format.setVCharType(HanyuPinyinVCharType.WITH_U_UNICODE);

        char[] hanYuArr = hanzi.trim().toCharArray();
        StringBuilder pinYin = new StringBuilder();

        try {
            for (int i = 0, len = hanYuArr.length; i < len; i++) {
                //匹配是否是汉字
                if (Character.toString(hanYuArr[i]).matches("[\u4E00-\u9FA5]+")) {
                    //如果是多音字，返回多个拼音，这里只取第一个
                    String[] pys = PinyinHelper.toHanyuPinyinStringArray(hanYuArr[i], format);
                    pinYin.append(pys[0]).append(" ");
                } else {
                    pinYin.append(hanYuArr[i]).append(" ");
                }
            }
        } catch (BadHanyuPinyinOutputFormatCombination badHanyuPinyinOutputFormatCombination) {
            badHanyuPinyinOutputFormatCombination.printStackTrace();
        }
        return pinYin.toString();
    }

    public static String getFirstPinYin(String hanyu) {
        HanyuPinyinOutputFormat format = new HanyuPinyinOutputFormat();
        format.setCaseType(HanyuPinyinCaseType.UPPERCASE);
        format.setToneType(HanyuPinyinToneType.WITHOUT_TONE);

        StringBuilder firstPinyin = new StringBuilder();
        char[] hanyuArr = hanyu.trim().toCharArray();
        try {
            for (int i = 0, len = hanyuArr.length; i < len; i++) {
                if (Character.toString(hanyuArr[i]).matches("[\u4E00-\u9FA5]+")) {
                    String[] pys = PinyinHelper.toHanyuPinyinStringArray(hanyuArr[i], format);
                    firstPinyin.append(pys[0].charAt(0));
                } else {
                    firstPinyin.append(hanyuArr[i]);
                }
            }
        } catch (BadHanyuPinyinOutputFormatCombination badHanyuPinyinOutputFormatCombination) {
            badHanyuPinyinOutputFormatCombination.printStackTrace();
        }
        return firstPinyin.toString();
    }