汉字转拼音

import net.sourceforge.pinyin4j.PinyinHelper;
import net.sourceforge.pinyin4j.format.HanyuPinyinOutputFormat;
import net.sourceforge.pinyin4j.format.HanyuPinyinToneType;
import net.sourceforge.pinyin4j.format.exception.BadHanyuPinyinOutputFormatCombination;

/**
 * 汉语转拼音工具类
 *
 * @author 
 */
public class Hanyu {

    //转换单个字符
    public static String getCharacterPinYin(char c) {
        HanyuPinyinOutputFormat format = new HanyuPinyinOutputFormat();
        format.setToneType(HanyuPinyinToneType.WITHOUT_TONE);
        String[] pinyin = null;
        try {
            pinyin = PinyinHelper.toHanyuPinyinStringArray(c, format);
        } catch (BadHanyuPinyinOutputFormatCombination e) {
            e.printStackTrace();
        }
        // 如果c不是汉字，toHanyuPinyinStringArray会返回null
        if (pinyin == null) {
            return null;
        }
        // 只取一个发音，如果是多音字，仅取第一个发音
        return pinyin[0];
    }

    //转换一个字符串
    public static String getStringPinYin(String str) {
        StringBuilder sb = new StringBuilder();
        String tempPinyin = null;
        for (int i = 0; i < str.length(); ++i) {
            tempPinyin = getCharacterPinYin(str.charAt(i));
            if (tempPinyin == null) {
                // 如果str.charAt(i)非汉字，则保持原样
                sb.append(str.charAt(i));
            } else {
                sb.append(tempPinyin);
            }
        }
        return sb.toString();
    }
}