将pinyin4j-2.5.0.jar （附件中有，记得解压）加入到classpath中。

工具类PinyinUtils代码见下：

package com.test.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;

public class PinyinUtils {

    /**
     * 判断字符串是否为空
     * 
     * @param text
     *            字符串
     * @return
     */
    private static boolean isNULL(String text) {
        if (text == null || text.trim().equals("")
                || "null".equalsIgnoreCase(text)) {
            return true;
        }
        return false;
    }

    /**
     * 获取汉字串拼音首字母，英文字符不变
     * 
     * @param chineseString
     *            汉字串
     * @return 汉语拼音首字母
     */
    public static String getFirstSpell(String chineseString) {
        StringBuffer pybf = new StringBuffer();
        if (isNULL(chineseString)) {
            return null;
        }
        char arr = chineseString.trim().replaceAll(":", "").replaceAll("（", "")
                .replaceAll("）", "").toCharArray()[0];
        HanyuPinyinOutputFormat defaultFormat = new HanyuPinyinOutputFormat();
        defaultFormat.setCaseType(HanyuPinyinCaseType.LOWERCASE);
        defaultFormat.setToneType(HanyuPinyinToneType.WITHOUT_TONE);
        if (arr > 128) {
            try {
                String[] _t = PinyinHelper.toHanyuPinyinStringArray(arr,
                        defaultFormat);
                if (_t != null) {
                    pybf.append(_t[0].charAt(0));
                }
            } catch (BadHanyuPinyinOutputFormatCombination e) {
                e.printStackTrace();
            }
        } else {
            pybf.append(arr);
        }
        String result = pybf.toString().replaceAll("\\W", "").trim();
        return result.toUpperCase();
    }

    /**
     * 获取汉字串拼音，英文字符不变
     * 
     * @param chineseString
     *            汉字串
     * @return 汉语拼音
     */
    public static String getSpell(String chineseString) {
        StringBuffer pybf = new StringBuffer();
        if (isNULL(chineseString)) {
            return null;
        }
        char[] arr = chineseString.trim().toCharArray();
        HanyuPinyinOutputFormat defaultFormat = new HanyuPinyinOutputFormat();
        defaultFormat.setCaseType(HanyuPinyinCaseType.LOWERCASE);
        defaultFormat.setToneType(HanyuPinyinToneType.WITHOUT_TONE);
        try {
            for (int i = 0; i < arr.length; i++) {
                if (arr[i] > 128) {
                    try {
                        String[] pinyinArray = PinyinHelper
                                .toHanyuPinyinStringArray(arr[i], defaultFormat);

                        if (pinyinArray != null && pinyinArray.length > 0) {
                            String firstPinyin = pinyinArray[0];
                            if (firstPinyin != null) {
                                pybf.append(firstPinyin);
                            }
                        }

                    } catch (BadHanyuPinyinOutputFormatCombination e) {
                        e.printStackTrace();

                    }
                } else {
                    pybf.append(arr[i]);
                }
            }
            return pybf.toString();
        } catch (Exception e) {
            e.printStackTrace();
            return "";
        }
    }

    /**
     * 取中文串每个字的首字母
     * 
     * @param chineseString
     *            中国
     * @return ZG
     */
    public static String getAllFirstSpell(String chineseString) {
        StringBuffer pybf = new StringBuffer();
        if (isNULL(chineseString)) {
            return null;
        }
        char[] arr = chineseString.trim().toCharArray();

        HanyuPinyinOutputFormat defaultFormat = new HanyuPinyinOutputFormat();
        defaultFormat.setCaseType(HanyuPinyinCaseType.LOWERCASE);
        defaultFormat.setToneType(HanyuPinyinToneType.WITHOUT_TONE);
        try {
            for (int i = 0; i < arr.length; i++) {
                if (arr[i] > 128) {
                    String han = "" + arr[i];
                    pybf.append(getFirstSpell(han));
                }
            }
            return pybf.toString();
        } catch (Exception e) {
            e.printStackTrace();
            return "";
        }
    }

    public static void main(String[] args) {
        System.out.println(getFirstSpell("Ｃ"));
        System.out.println(getAllFirstSpell("中国"));
    }

}

本文出自 “12314480” 博客，请务必保留此出处http://12324480.blog.51cto.com/12314480/1875402

JAVA 将中文转化为拼音工具类