汉字转拼音（pinyin4j）

1、引入依赖

<dependency>
        <groupId>pinyin4j.sourceforge.net</groupId>
        <artifactId>pinyin4j</artifactId>
        <version>2.5.0</version>

</dependency>

2、代码

package net.biocloud.social.management.utils;

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.exception.BadHanyuPinyinOutputFormatCombination;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class ChineseToEnglishHelper {

    private static final Logger LOG = LoggerFactory.getLogger(ChineseToEnglishHelper.class);

    /**
     * 姓名转换为拼音，如胡八一， BaYi Hu
     *
     * @param realName
     * @return
     */
    public static String chineseToPinyin(String realName) {
        StringBuffer pybf = new StringBuffer();
        char[] arr = realName.trim().toCharArray();
        HanyuPinyinOutputFormat defaultFormat = new HanyuPinyinOutputFormat();
        defaultFormat.setCaseType(HanyuPinyinCaseType.LOWERCASE);
        defaultFormat.setToneType(HanyuPinyinToneType.WITHOUT_TONE);
        String surname = "";
        for (int i = 0; i < arr.length; i++) {
            if (arr[i] > 128) {
                try {
                    //单个汉字转为拼音
                    String[] _t = PinyinHelper.toHanyuPinyinStringArray(arr[i], defaultFormat);
                    if (i == 0) {
                        surname = _t[0].substring(0, 1).toUpperCase() + _t[0].substring(1, _t[0].length());
                    } else {
                        pybf.append(_t[0].substring(0, 1).toUpperCase() + _t[0].substring(1, _t[0].length()));
                    }
                    if (i == arr.length - 1) {
                        pybf.append(" " + surname);
                    }
                } catch (BadHanyuPinyinOutputFormatCombination e) {
                    LOG.info("chinese to english error, this is message" + e.getMessage());
                    throw new RuntimeException("chinese to english error");
                }
            } else {
                pybf.append(arr[i]);
            }
        }
        return pybf.toString().trim();
    }

    /**
     * 姓名转换为拼音，如胡八一， B Y Hu
     *
     * @param realName
     * @return
     */
    public static String chineseToEnglish(String realName) {
        StringBuffer pybf = new StringBuffer();
        char[] arr = realName.trim().toCharArray();
        HanyuPinyinOutputFormat defaultFormat = new HanyuPinyinOutputFormat();
        defaultFormat.setCaseType(HanyuPinyinCaseType.LOWERCASE);
        defaultFormat.setToneType(HanyuPinyinToneType.WITHOUT_TONE);
        String surname = "";
        for (int i = 0; i < arr.length; i++) {
            if (arr[i] > 128) {
                try {
                    //单个汉字转为拼音
                    String[] _t = PinyinHelper.toHanyuPinyinStringArray(arr[i], defaultFormat);
                    if (i == 0) {
                        surname = _t[0].substring(0, 1).toUpperCase() + _t[0].substring(1, _t[0].length());
                    } else {
                        pybf.append((arr.length == 2) ? _t[0].substring(0, 1).toUpperCase() :
                                (i == 1) ? _t[0].substring(0, 1).toUpperCase() + " " : _t[0].substring(0, 1).toUpperCase());
                    }
                    if (i == arr.length - 1) {
                        pybf.append(" " + surname);
                    }
                } catch (BadHanyuPinyinOutputFormatCombination e) {
                    LOG.info("chinese to pinyin error, this is message" + e.getMessage());
                    throw new RuntimeException("chinese to pinyin error");
                }
            } else {
                pybf.append(arr[i]);
            }
        }
        return pybf.toString().trim();
    }

    public static void main(String arg[]) {
        System.out.println(chineseToPinyin("胡八一"));
        System.out.println(chineseToEnglish("胡八一"));
    }

}