汉字转拼音工具类，拼音首字母大写。
需要注意的是，由于用到了pinyin4j，因此需要导包：
<!--汉字转拼音-->
<dependency>
<groupId>org.clojars.cbilson</groupId>
<artifactId>pinyin4j</artifactId>
<version>2.5.0</version>
</dependency>import net.sourceforge.pinyin4j.PinyinHelper;
import net.sourceforge.pinyin4j.format.HanyuPinyinCaseType;
import net.sourceforge.pinyin4j.format.HanyuPinyinOutputFormat;
import net.sourceforge.pinyin4j.format.HanyuPinyinToneType;
import net.sourceforge.pinyin4j.format.HanyuPinyinVCharType;
import net.sourceforge.pinyin4j.format.exception.BadHanyuPinyinOutputFormatCombination;
public final class PinyinUtil {
private PinyinUtil() {
}
public static String getPinYin(String chineseCharacters) {
HanyuPinyinOutputFormat format = new HanyuPinyinOutputFormat();
format.setCaseType(HanyuPinyinCaseType.LOWERCASE);
format.setToneType(HanyuPinyinToneType.WITHOUT_TONE);
format.setVCharType(HanyuPinyinVCharType.WITH_V);
char[] arrays = chineseCharacters.trim().toCharArray();
String pinyin = "";
try {
for (int i = 0; i < arrays.length; i++) {
char ti = arrays[i];
if (Character.toString(ti).matches("[\\u4e00-\\u9fa5]")) {
String[] temp = PinyinHelper.toHanyuPinyinStringArray(ti, format);
char[] cs = temp[0].toCharArray();
cs[0] -= 32;
pinyin += String.valueOf(cs);
} else {
pinyin += ti;
}
}
} catch (BadHanyuPinyinOutputFormatCombination e) {
e.printStackTrace();
}
return pinyin;
}
}