Pinyin4J.jar 对汉字转为拼音，支持多音字。

强大的pinyin4j.jar。 直接上代码

import java.util.HashSet;import java.util.Set;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 class pinyin4j {/** * 字符串集合转换字符串(逗号分隔) *  * @author wyh * @param stringSet * @return */public static String makeStringByStringSet(Set<String> stringSet) {StringBuilder str = new StringBuilder();int i = 0;for (String s : stringSet) {if (i == stringSet.size() - 1) {str.append(s);} else {str.append(s + ",");}i++;}return str.toString().toLowerCase();}/** * 获取拼音集合 *  * @author wyh * @param src * @return Set<String> */public static Set<String> getPinyin(String src) {if (src != null && !src.trim().equalsIgnoreCase("")) {char[] srcChar;srcChar = src.toCharArray();// 汉语拼音格式输出类HanyuPinyinOutputFormat hanYuPinOutputFormat = new HanyuPinyinOutputFormat();// 输出设置，大小写，音标方式等hanYuPinOutputFormat.setCaseType(HanyuPinyinCaseType.LOWERCASE);hanYuPinOutputFormat.setToneType(HanyuPinyinToneType.WITHOUT_TONE);hanYuPinOutputFormat.setVCharType(HanyuPinyinVCharType.WITH_V);String[][] temp = new String[src.length()][];for (int i = 0; i < srcChar.length; i++) {char c = srcChar[i];// 是中文或者a-z或者A-Z转换拼音(我的需求，是保留中文或者a-z或者A-Z)if (String.valueOf(c).matches("[\\u4E00-\\u9FA5]+")) {try {temp[i] = PinyinHelper.toHanyuPinyinStringArray(srcChar[i], hanYuPinOutputFormat);} catch (BadHanyuPinyinOutputFormatCombination e) {e.printStackTrace();}} else if (((int) c >= 65 && (int) c <= 90)|| ((int) c >= 97 && (int) c <= 122)) {temp[i] = new String[] { String.valueOf(srcChar[i]) };} else {temp[i] = new String[] { "" };}}String[] pingyinArray = Exchange(temp);Set<String> pinyinSet = new HashSet<String>();for (int i = 0; i < pingyinArray.length; i++) {pinyinSet.add(pingyinArray[i]);}return pinyinSet;}return null;}/** * 递归 *  * @author wyh * @param strJaggedArray * @return */public static String[] Exchange(String[][] strJaggedArray) {String[][] temp = DoExchange(strJaggedArray);return temp[0];}/** * 递归 *  * @author wyh * @param strJaggedArray * @return */private static String[][] DoExchange(String[][] strJaggedArray) {int len = strJaggedArray.length;if (len >= 2) {int len1 = strJaggedArray[0].length;int len2 = strJaggedArray[1].length;int newlen = len1 * len2;String[] temp = new String[newlen];int Index = 0;for (int i = 0; i < len1; i++) {for (int j = 0; j < len2; j++) {temp[Index] = strJaggedArray[0][i] + strJaggedArray[1][j];Index++;}}String[][] newArray = new String[len - 1][];for (int i = 2; i < len; i++) {newArray[i - 1] = strJaggedArray[i];}newArray[0] = temp;return DoExchange(newArray);} else {return strJaggedArray;}}/** * @param args */public static void main(String[] args) {String str = "安卓";System.out.println(makeStringByStringSet(getPinyin(str)));}}

输出：anzhuo