将文字转换为拼音

package util;

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 PingYingTest {
    public static String getEname(String name) {
        HanyuPinyinOutputFormat pyFormat = new HanyuPinyinOutputFormat();
        pyFormat.setCaseType(HanyuPinyinCaseType.LOWERCASE);
        pyFormat.setToneType(HanyuPinyinToneType.WITHOUT_TONE);
        pyFormat.setVCharType(HanyuPinyinVCharType.WITH_V);
        try {
            return PinyinHelper.toHanyuPinyinString(name, pyFormat, "");
        } catch (BadHanyuPinyinOutputFormatCombination e) {
            e.printStackTrace();
        }
        return null;
    }
     public static Set<String> getPinyin(String src){
      if(src!=null && !src.trim().equalsIgnoreCase("")){
       char[] srcChar ;
       srcChar=src.toCharArray();
       HanyuPinyinOutputFormat hanYuPinOutputFormat = new HanyuPinyinOutputFormat();
       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];
        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;
     }
        public static String[] Exchange(String[][] strJaggedArray){
            String[][] temp = DoExchange(strJaggedArray);
            return temp[0];
        }  

        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;
            }
        }
    public static void main (String[] args){
        Set<String> s = getPinyin("吃饭了");
        for(String str:s){
            System.out.println(str);
        }
    }
}