JAVA獲取漢字拼音首字母

package com.common.util;import java.io.UnsupportedEncodingException;/*** 取得給定漢字串的首字母串,即聲母串 * Title: ChineseCharToEn * @date 注：只支持GB2312字符集中的漢字 */ public final class ChineseCharToEn {private final static int[] li_SecPosValue = { 1601, 1637, 1833, 2078, 2274,2302, 2433, 2594, 2787, 3106, 3212, 3472, 3635, 3722, 3730, 3858,4027, 4086, 4390, 4558, 4684, 4925, 5249, 5590 };private final static String[] lc_FirstLetter = { "a", "b", "c", "d", "e","f", "g", "h", "j", "k", "l", "m", "n", "o", "p", "q", "r", "s","t", "w", "x", "y", "z" };/*** 取得給定漢字串的首字母串,即聲母串 * @param str 給定漢字串 * @return 聲母串*/public static String getAllFirstLetter(String str) {if (str == null || str.trim().length() == 0) {return "";}String _str = "";for (int i = 0; i < str.length(); i++) {_str = _str + getFirstLetter(str.substring(i, i + 1));}return _str;}/*** 取得給定漢字的首字母,即聲母 * @param chinese 給定的漢字 * @return 給定漢字的聲母*/public static String getFirstLetter(String chinese) {if (chinese == null || chinese.trim().length() == 0) {return "";}chinese = conversionStr(chinese, "GB2312", "ISO8859-1");if (chinese.length() > 1) // 判斷是不是漢字 {int li_SectorCode = (int) chinese.charAt(0); // 漢字區碼 int li_PositionCode = (int) chinese.charAt(1); // 漢字位碼 li_SectorCode = li_SectorCode - 160;li_PositionCode = li_PositionCode - 160;int li_SecPosCode = li_SectorCode * 100 + li_PositionCode; // 漢字區位碼 if (li_SecPosCode > 1600 && li_SecPosCode < 5590) {for (int i = 0; i < 23; i++) {if (li_SecPosCode >= li_SecPosValue[i]&& li_SecPosCode < li_SecPosValue[i + 1]) {chinese = lc_FirstLetter[i];break;}}} else // 非漢字字符,如圖形符號或ASCII碼 {chinese = conversionStr(chinese, "ISO8859-1", "GB2312");chinese = chinese.substring(0, 1);}}return chinese;}/*** 字符串編碼轉換 * @param str 要轉換編碼的字符串 * @param charsetName 原來的編碼 * @param toCharsetName 轉換后的編碼 * @return 經過編碼轉換后的字符串*/private static String conversionStr(String str, String charsetName,String toCharsetName) {try {str = new String(str.getBytes(charsetName), toCharsetName);} catch (UnsupportedEncodingException ex) {System.out.println("字符串編碼轉換異常：" + ex.getMessage());}return str;}public static void main(String[] args) {System.out.println("獲取拼音首字母："+getAllFirstLetter("大中國南昌中大china"));}}

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