pinyin4j，獲取拼音的首字母

package cn.zyc.test;

import java.util.ArrayList;
import java.util.Hashtable;
import java.util.List;
import java.util.Map;

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.exception.BadHanyuPinyinOutputFormatCombination;

public class PinYin {

	/**
	 * 漢字轉換位漢語拼音首字母，英文字符不變，特殊字符丟失 支持多音字，生成方式如（重當參:cdc,zds,cds,zdc）
	 * 
	 * @param chines
	 *            漢字
	 * @return 拼音
	 */
	public static String converterToFirstSpell(String chines) {
		StringBuffer pinyinName = new StringBuffer();
		char[] nameChar = chines.toCharArray();
		HanyuPinyinOutputFormat defaultFormat = new HanyuPinyinOutputFormat();
		defaultFormat.setCaseType(HanyuPinyinCaseType.LOWERCASE);
		defaultFormat.setToneType(HanyuPinyinToneType.WITHOUT_TONE);
		for (int i = 0; i < nameChar.length; i++) {
			if (nameChar[i] > 128) {
				try {
					// 取得當前漢字的全部全拼
					String[] strs = PinyinHelper.toHanyuPinyinStringArray(
							nameChar[i], defaultFormat);
					if (strs != null) {
						for (int j = 0; j < strs.length; j++) {
							// 取首字母
							pinyinName.append(strs[j].charAt(0));
							if (j != strs.length - 1) {
								pinyinName.append(",");
							}
						}
					}
				} catch (BadHanyuPinyinOutputFormatCombination e) {
					e.printStackTrace();
				}
			} else {
				pinyinName.append(nameChar[i]);
			}
			pinyinName.append(" ");
		}
		return parseTheChineseByObject(discountTheChinese(pinyinName.toString()));
	}

	/**
	 * 去除多音字重複數據
	 * 
	 * @param theStr
	 * @return
	 */
	private static List<Map<String, Integer>> discountTheChinese(String theStr) {
		// 去除重複拼音後的拼音列表
		List<Map<String, Integer>> mapList = new ArrayList<Map<String, Integer>>();
		// 用於處理每一個字的多音字，去掉重複
		Map<String, Integer> onlyOne = null;
		String[] firsts = theStr.split(" ");
		// 讀出每一個漢字的拼音
		for (String str : firsts) {
			onlyOne = new Hashtable<String, Integer>();
			String[] china = str.split(",");
			// 多音字處理
			for (String s : china) {
				Integer count = onlyOne.get(s);
				if (count == null) {
					onlyOne.put(s, new Integer(1));
				} else {
					onlyOne.remove(s);
					count++;
					onlyOne.put(s, count);
				}
			}
			mapList.add(onlyOne);
		}
		return mapList;
	}

	/**
	 * 解析並組合拼音，對象合併方案(推薦使用)
	 * 
	 * @return
	 */
	private static String parseTheChineseByObject(
			List<Map<String, Integer>> list) {
		Map<String, Integer> first = null; // 用於統計每一次,集合組合數據
		// 遍歷每一組集合
		for (int i = 0; i < list.size(); i++) {
			// 每一組集合與上一次組合的Map
			Map<String, Integer> temp = new Hashtable<String, Integer>();
			// 第一次循環，first爲空
			if (first != null) {
				// 取出上次組合與這次集合的字符，並保存
				for (String s : first.keySet()) {
					for (String s1 : list.get(i).keySet()) {
						String str = s + s1;
						temp.put(str, 1);
					}
				}
				// 清理上一次組合數據
				if (temp != null && temp.size() > 0) {
					first.clear();
				}
			} else {
				for (String s : list.get(i).keySet()) {
					String str = s;
					temp.put(str, 1);
				}
			}
			// 保存組合數據以便下次循環使用
			if (temp != null && temp.size() > 0) {
				first = temp;
			}
		}
		String returnStr = "";
		if (first != null) {
			// 遍歷取出組合字符串
			for (String str : first.keySet()) {
				returnStr += (str + ",");
			}
		}
		if (returnStr.length() > 0) {
			returnStr = returnStr.substring(0, returnStr.length() - 1);
		}
		return returnStr;
	}

	public static void main(String[] args) {
		String str = "參差";
		System.out.println(converterToFirstSpell(str));
	}
}

pinyin4j的jar包下載地址：pinyin4j.jar