Java_获取汉字的汉语拼音首字母Java版（转）

1. public class GetFirstLetter {   
2.   
3.  private static final int GB_SP_DIFF = 160;   
4.  private static final int[] secPosvalueList = {   
5.        1601, 1637, 1833, 2078, 2274, 2302, 2433, 2594, 2787,   
6.        3106, 3212, 3472, 3635, 3722, 3730, 3858, 4027, 4086,   
7.        4390, 4558, 4684, 4925, 5249, 5600};   
8.  private static final char[] firstLetter = {   
9.        'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'j',   
10.        'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's',   
11.        't', 'w', 'x', 'y', 'z'};   
12.   
13.  public static String getFirstLetter(String oriStr) {   
14.      String str = oriStr.toLowerCase();   
15.      StringBuffer buffer = new StringBuffer();   
16.      char ch;   
17.      char[] temp;   
18.      for (int i = 0; i < str.length(); i++) {    
19.        ch = str.charAt(i);   
20.        temp = new char[] {   
21.            ch};   
22.        byte[] uniCode = new String(temp).getBytes();   
23.        if (uniCode[0] < 128 && uniCode[0] > 0) {   
24.          buffer.append(temp);   
25.        }   
26.        else {   
27.          buffer.append(convert(uniCode));   
28.        }   
29.      }   
30.      return buffer.toString().substring(0,1);   
31.  }   
32.   
33.  private static char convert(byte[] bytes) {   
34.   
35.      char result = '-';   
36.      int secPosvalue = 0;   
37.      int i;   
38.      for (i = 0; i < bytes.length; i++) {   
39.        bytes[i] -= GB_SP_DIFF;   
40.      }   
41.      secPosvalue = bytes[0] * 100 + bytes[1];   
42.      for (i = 0; i < 23; i++) {   
43.        if (secPosvalue >= secPosvalueList[i] &&   
44.            secPosvalue < secPosvalueList[i + 1]) {   
45.          result = firstLetter[i];   
46.          break;   
47.        }   
48.      }   
49.      return result;   
50.  }   
51.     
52.  public static void main(String s[]){   
53.      
54.   System.out.print(getFirstLetter("好"));   
55.  }