java汉字转拼音以及得到首字母通用方法

package oa.common.utils;

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;
import net.sourceforge.pinyin4j.format.exception.BadHanyuPinyinOutputFormatCombination;

/**
 * 拼音工具类
 *
 * @author lsf
 */
public class PingYinUtil {
    /**
     * 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 = "" ;

        try {
            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]);
            }
        } catch (BadHanyuPinyinOutputFormatCombination e) {
            e.printStackTrace();
        }
        return output;
    }
    /**
     * 获取汉字串拼音首字母，英文字符不变
     * @param chinese 汉字串
     * @return 汉语拼音首字母
     */
    public static String getFirstSpell(String chinese) {
            StringBuffer pybf = new StringBuffer();
            char [] arr = chinese.toCharArray();
            HanyuPinyinOutputFormat defaultFormat = new HanyuPinyinOutputFormat();
            defaultFormat.setCaseType(HanyuPinyinCaseType.LOWERCASE);
            defaultFormat.setToneType(HanyuPinyinToneType.WITHOUT_TONE);
            for ( int i = 0 ; i < arr.length; i++) {
                    if (arr[i] > 128 ) {
                            try {
                                    String[] temp = PinyinHelper.toHanyuPinyinStringArray(arr[i], defaultFormat);
                                    if (temp != null ) {
                                            pybf.append(temp[ 0 ].charAt( 0 ));
                                    }
                            } catch (BadHanyuPinyinOutputFormatCombination e) {
                                    e.printStackTrace();
                            }
                    } else {
                            pybf.append(arr[i]);
                    }
            }
            return pybf.toString().replaceAll( "\\W" , "" ).trim();
    }
    /**
     * 获取汉字串拼音，英文字符不变
     * @param chinese 汉字串
     * @return 汉语拼音
     */
    public static String getFullSpell(String chinese) {
            StringBuffer pybf = new StringBuffer();
            char [] arr = chinese.toCharArray();
            HanyuPinyinOutputFormat defaultFormat = new HanyuPinyinOutputFormat();
            defaultFormat.setCaseType(HanyuPinyinCaseType.LOWERCASE);
            defaultFormat.setToneType(HanyuPinyinToneType.WITHOUT_TONE);
            for ( int i = 0 ; i < arr.length; i++) {
                    if (arr[i] > 128 ) {
                            try {
                                    pybf.append(PinyinHelper.toHanyuPinyinStringArray(arr[i], defaultFormat)[ 0 ]);
                            } catch (BadHanyuPinyinOutputFormatCombination e) {
                                    e.printStackTrace();
                            }
                    } else {
                            pybf.append(arr[i]);
                    }
            }
            return pybf.toString();
    }
}