PinyinUtil.java

package com.partynetwork.dataprovider.util;

import java.util.Locale;

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;

public class PinyinUtil {
	/**
	 * 获取sort key的首个字符，如果是英文字母就直接返回，否则返回#。
	 * 
	 * @param sortKeyString
	 *            数据库中读取出的sort key
	 * @return 英文字母或者#
	 */
	public static String getSortKey(String sortKeyString) {
		if (sortKeyString == null) {
			return "#";
		}
		String key = getAlpha(sortKeyString).substring(0, 1).toUpperCase(
				Locale.CHINA);
		if (key.matches("[A-Z]")) {
			return key;
		}
		return "#";
	}

	/**
	 * 获得汉语拼音首字母
	 * 
	 * @param chines
	 * @return
	 */
	public static String getAlpha(String chines) {
		String pinyinName = "";
		if (chines == null) {
			return "";
		}
		char[] nameChar = chines.toCharArray();
		HanyuPinyinOutputFormat defaultFormat = new HanyuPinyinOutputFormat();
		defaultFormat.setCaseType(HanyuPinyinCaseType.UPPERCASE);
		defaultFormat.setToneType(HanyuPinyinToneType.WITHOUT_TONE);
		for (int i = 0; i < nameChar.length; i++) {
			if (nameChar[i] > 128) {
				try {
					pinyinName += PinyinHelper.toHanyuPinyinStringArray(
							nameChar[i], defaultFormat)[0].charAt(0);
				} catch (Exception e) {
					e.printStackTrace();
				}
			} else {
				pinyinName += nameChar[i];
			}
		}
		return pinyinName;
	}

	/**
	 * 将字符串中的中文转化为拼音,其他字符不变
	 * 
	 * @param inputString
	 * @return
	 */
	public static String getPingYin(String inputString) {
		HanyuPinyinOutputFormat format = new HanyuPinyinOutputFormat();
		format.setCaseType(HanyuPinyinCaseType.LOWERCASE);
		format.setToneType(HanyuPinyinToneType.WITHOUT_TONE);
		format.setVCharType(HanyuPinyinVCharType.WITH_V);

		char[] input = inputString.trim().toCharArray();
		String output = "";

		for (int i = 0; i < input.length; i++) {
			if (java.lang.Character.toString(input[i]).matches(
					"[\\u4E00-\\u9FA5]+")) {
				String[] temp = PinyinHelper.toHanyuPinyinStringArray(input[i],
						format);
				output += temp[0];
			} else
				output += java.lang.Character.toString(input[i]);
		}
		return output;
	}

	/**
	 * 汉字转换位汉语拼音首字母，英文字符不变
	 * 
	 * @param chines
	 *            汉字
	 * @return 拼音
	 */
	public static String converterToFirstSpell(String chines) {
		String pinyinName = "";
		char[] nameChar = chines.toCharArray();
		HanyuPinyinOutputFormat defaultFormat = new HanyuPinyinOutputFormat();
		defaultFormat.setCaseType(HanyuPinyinCaseType.UPPERCASE);
		defaultFormat.setToneType(HanyuPinyinToneType.WITHOUT_TONE);
		for (int i = 0; i < nameChar.length; i++) {
			if (nameChar[i] > 128) {
				pinyinName += PinyinHelper.toHanyuPinyinStringArray(
						nameChar[i], defaultFormat)[0].charAt(0);
			} else {
				pinyinName += nameChar[i];
			}
		}
		return pinyinName;
	}
}