中文转为拼音

package com.yk.yk_doctor.util;

import java.io.UnsupportedEncodingException;

/**

 * 

 * @author zsw 中文转为拼音

 *

 */

public class Spell {

static final int GB_SP_DIFF = 160;
static final int[] secPosValueList = { 1601, 1637, 1833, 2078, 2274, 2302,
2433, 2594, 2787, 3106, 3212, 3472, 3635, 3722, 3730, 3858, 4027,
4086, 4390, 4558, 4684, 4925, 5249, 5600 };
static final char[] firstLetter = { 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h',
'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'w', 'x',
'y', 'z' };

public static String getSpells(String characters) {
StringBuffer buffer = new StringBuffer();
for (int i = 0; i < characters.length(); i++) {

char ch = characters.charAt(i);
if ((ch >> 7) == 0) {
} else {
char spell = getFirstLetter(ch);
buffer.append(String.valueOf(spell));
}
}
return buffer.toString();
}
private static Character getFirstLetter(char ch) {

byte[] uniCode = null;
try {
uniCode = String.valueOf(ch).getBytes("GBK");
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
return null;
}
if (uniCode[0] < 128 && uniCode[0] > 0) { 
return null;
} else {
return convert(uniCode);
}
}
private static char convert(byte[] bytes) {
char result = '-';
int secPosValue = 0;
int i;
for (i = 0; i < bytes.length; i++) {
bytes[i] -= GB_SP_DIFF;
}
secPosValue = bytes[0] * 100 + bytes[1];
for (i = 0; i < 23; i++) {
if (secPosValue >= secPosValueList[i]
&& secPosValue < secPosValueList[i + 1]) {
result = firstLetter[i];
break;
}
}
return result;
}

}