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; }}