Java 把汉字改成拼音

 引入的包

public class Pinyin {
    public static String getFirstPinyin(String hanzi) {
        HanyuPinyinOutputFormat format = new HanyuPinyinOutputFormat();
//        format.setCaseType(HanyuPinyinCaseType.UPPERCASE);//大写
        format.setToneType(HanyuPinyinToneType.WITHOUT_TONE);//不标声调

        StringBuilder res=new StringBuilder();
        for ( char c: hanzi.toCharArray()){
            String[] pinyin= new String[0];
            try {
                pinyin = PinyinHelper.toHanyuPinyinStringArray(c,format);
            } catch (BadHanyuPinyinOutputFormatCombination badHanyuPinyinOutputFormatCombination) {
                badHanyuPinyinOutputFormatCombination.printStackTrace();
            }
            res.append(pinyin[0].charAt(0));
        }
        return res.toString();
    }
}

Service层调用getFirstPinyin方法
String pinyinres=getFirstPinyin(material.getName());