使用Pinyin4j进行拼音分词的方法

<dependency>
 <groupId>com.belerweb</groupId>
 <artifactId>pinyin4j</artifactId>
 <version>2.5.1</version>
</dependency>

package com.os.core.util.solr;
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;
import java.util.ArrayList;
import java.util.Hashtable;
import java.util.List;
import java.util.Map;
/**
 * 汉语拼音工具类
 * Created by PengSongHe on 2017/2/9 0009.
 */
public class Pinyin4jUtil {
 public static void main(String[] args) {
  String str = "测试";
  String pinyin = Pinyin4jUtil.converterToSpell(str);
  System.out.println(str + " pin yin ：" + pinyin);
  pinyin = Pinyin4jUtil.converterToFirstSpell(str);
  System.out.println(str + " short pin yin ：" + pinyin);
 }
 /**
  * 汉字转换位汉语拼音首字母，英文字符不变，特殊字符丢失 支持多音字，生成方式如（长沙市长:cssc,zssz,zssc,cssz）
  *
  * @param chines 汉字
  * @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 {
     // 取得当前汉字的所有全拼
     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(",");
       }
      }
     }
     // else {
     // pinyinName.append(nameChar[i]);
     // }
    } catch (BadHanyuPinyinOutputFormatCombination e) {
     e.printStackTrace();
    }
   } else {
    pinyinName.append(nameChar[i]);
   }
   pinyinName.append(" ");
  }
  // return pinyinName.toString();
  return parseTheChineseByObject(discountTheChinese(pinyinName.toString()));
 }
 /**
  * 汉字转换位汉语全拼，英文字符不变，特殊字符丢失
  * 支持多音字，生成方式如（重当参:zhongdangcen,zhongdangcan,chongdangcen
  * ,chongdangshen,zhongdangshen,chongdangcan）
  *
  * @param chines 汉字
  * @return 拼音
  */
 public static String converterToSpell(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 {
     // 取得当前汉字的所有全拼
     String[] strs = PinyinHelper.toHanyuPinyinStringArray(
       nameChar[i], defaultFormat);
     if (strs != null) {
      for (int j = 0; j < strs.length; j++) {
       pinyinName.append(strs[j]);
       if (j != strs.length - 1) {
        pinyinName.append(",");
       }
      }
     }
    } catch (BadHanyuPinyinOutputFormatCombination e) {
     e.printStackTrace();
    }
   } else {
    pinyinName.append(nameChar[i]);
   }
   pinyinName.append(" ");
  }
  // return pinyinName.toString();
  return parseTheChineseByObject(discountTheChinese(pinyinName.toString()));
 }
 /**
  * 去除多音字重复数据
  *
  * @param theStr
  * @return
  */
 private static List<Map<String, Integer>> discountTheChinese(String theStr) {
  // 去除重复拼音后的拼音列表
  List<Map<String, Integer>> mapList = new ArrayList<Map<String, Integer>>();
  // 用于处理每个字的多音字，去掉重复
  Map<String, Integer> onlyOne = null;
  String[] firsts = theStr.split(" ");
  // 读出每个汉字的拼音
  for (String str : firsts) {
   onlyOne = new Hashtable<String, Integer>();
   String[] china = str.split(",");
   // 多音字处理
   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;
 }
 /**
  * 解析并组合拼音，对象合并方案(推荐使用)
  *
  * @return
  */
 private static String parseTheChineseByObject(
   List<Map<String, Integer>> list) {
  Map<String, Integer> first = null; // 用于统计每一次,集合组合数据
  // 遍历每一组集合
  for (int i = 0; i < list.size(); i++) {
   // 每一组集合与上一次组合的Map
   Map<String, Integer> temp = new Hashtable<String, Integer>();
   // 第一次循环，first为空
   if (first != null) {
    // 取出上次组合与此次集合的字符，并保存
    for (String s : first.keySet()) {
     for (String s1 : list.get(i).keySet()) {
      String str = s + s1;
      temp.put(str, 1);
     }
    }
    // 清理上一次组合数据
    if (temp != null && temp.size() > 0) {
     first.clear();
    }
   } else {
    for (String s : list.get(i).keySet()) {
     String str = s;
     temp.put(str, 1);
    }
   }
   // 保存组合数据以便下次循环使用
   if (temp != null && temp.size() > 0) {
    first = temp;
   }
  }
  String returnStr = "";
  if (first != null) {
   // 遍历取出组合字符串
   for (String str : first.keySet()) {
    returnStr += (str + ",");
   }
  }
  if (returnStr.length() > 0) {
   returnStr = returnStr.substring(0, returnStr.length() - 1);
  }
  return returnStr;
 }
}