Java汉字转拼音pinyin4j

package com.joyce.pinyin4j;
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;
/**
 * PinYin4j
 * @author Joyce.Luo
 * @date 2015-5-14 下午01:04:38
 * @version V3.0
 * @since Tomcat6.0,Jdk1.6
 * @copyright Copyright (c) 2015
 */
public class PinyinUtil {
	public static void main(String[] args) {
		String str1 = PinyinUtil.toPinyinString('张');
		System.out.println("chinese char --> " + str1);
		String str2 = PinyinUtil.toPinyinString('c');
		System.out.println("english char --> " + str2);
		String str3 = PinyinUtil.toPinyinString("张三");
		System.out.println("chinese string --> " + str3);
		String str4 = PinyinUtil.toPinyinString("Hello World");
		System.out.println("english string --> " + str4);
		String str5 = PinyinUtil.toPinyinString("Hi 张三，hello world!");
		System.out.println("chinese and english --> " + str5);
	}
	
	/**
	 * 获取Pinyin输出格式
	 * @return Pinyin输出格式
	 * @author Joyce.Luo
	 * @date 2015-5-14 下午01:40:10
	 * @version V3.0
	 * @since Tomcat6.0,Jdk1.6
	 * @copyright Copyright (c) 2015
	 */
	private static HanyuPinyinOutputFormat getPinyinFormat(){
		HanyuPinyinOutputFormat format = new HanyuPinyinOutputFormat();
		/*
		 * UPPERCASE：大写 (ZHONG)
		 * LOWERCASE：小写 (zhong)
		 */
		format.setCaseType(HanyuPinyinCaseType.LOWERCASE);
		/*
		 * WITHOUT_TONE：无音标 (zhong)
		 * WITH_TONE_NUMBER：1-4数字表示英标 (zhong4)
		 * WITH_TONE_MARK：直接用音标符（必须WITH_U_UNICODE否则异常） (zhòng)
		 */
		format.setToneType(HanyuPinyinToneType.WITHOUT_TONE);
		/*
		 * WITH_V：用v表示ü (nv)
		 * WITH_U_AND_COLON：用"u:"表示ü (nu:)
		 * WITH_U_UNICODE：直接用ü (nü)
		 */
		format.setVCharType(HanyuPinyinVCharType.WITH_U_UNICODE);
		
		// 返回输出格式
		return format;
	}
	
	/**
	 * 将字符转换为Pinyin
	 * 若为英文字符，则直接输出
	 * 若字符为多音字，则取第一个
	 * @param c 待转换字符
	 * @return 转换后字符串
	 * @author Joyce.Luo
	 * @date 2015-5-14 下午01:34:55
	 * @version V3.0
	 * @since Tomcat6.0,Jdk1.6
	 * @copyright Copyright (c) 2015
	 */
	public static String toPinyinString(char c) {
		HanyuPinyinOutputFormat format = PinyinUtil.getPinyinFormat();
		try {
			String[] pinyin = PinyinHelper.toHanyuPinyinStringArray(c, format);
			if (null == pinyin || pinyin.length < 1) {
				return String.valueOf(c);
			}
			return pinyin[0];
		} catch (Exception e) {
			e.printStackTrace();
			return null;
		}
	}
	
	/**
	 * 字符串转换为Pinyin
	 * @param str 待转换字符串
	 * @return 转换后字符串
	 * @author Joyce.Luo
	 * @date 2015-5-14 下午01:38:17
	 * @version V3.0
	 * @since Tomcat6.0,Jdk1.6
	 * @copyright Copyright (c) 2015
	 */
	public static String toPinyinString(String str){
		if (null == str || "".equals(str)) {
			return null;
		}
		StringBuilder sb = new StringBuilder();
		String tempPinyin = null;
		for (int i = 0; i < str.length(); i++) {
			tempPinyin = PinyinUtil.toPinyinString(str.charAt(i));
			sb.append(tempPinyin);
		}
		return sb.toString();
	}
}