java如何准确的读取多音字

java如何准确的读取多音字

java准确读取多音字的方法，多音字的识别一直是一个问题，笔者结合了很多不同的读取方法，完成了这个扩展的帮助类。

首先，下载java读取拼音的jar（pinyin4j-2.5.0.jar）。

然后，

package data.util;import java.io.BufferedReader;import java.io.IOException;import java.io.InputStream;import java.io.InputStreamReader;import java.util.ArrayList;import java.util.HashMap;import java.util.List;import java.util.Map;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;public class PinyinUtilsPro {private static Map<String, List<String>> pinyinMap = new HashMap<String, List<String>>();private static List<String> pinyin = new ArrayList<String>();private static List<String> hpinyin = new ArrayList<String>();private static String regx = "(,| |\\[|\\])";// 正则表达式，匹配字符串用public static void main(String[] args) {String str = "绿色中国银行长沙分行";convertChineseToPinyin(str);String py = getPinyin();System.out.println(str + " = " + py);String headP = getHeadPinyin();System.out.println(headP);}public static String getPinyin(){return String.valueOf(pinyin).replaceAll(regx, "");}public static String getHeadPinyin(){return String.valueOf(hpinyin).replaceAll(regx, "");}/** * 汉字转拼音 最大匹配优先 *  * @param chinese * @return */public static void convertChineseToPinyin(String chinese) {initPinyin();HanyuPinyinOutputFormat defaultFormat = new HanyuPinyinOutputFormat();defaultFormat.setCaseType(HanyuPinyinCaseType.LOWERCASE);defaultFormat.setVCharType(HanyuPinyinVCharType.WITH_V);defaultFormat.setToneType(HanyuPinyinToneType.WITHOUT_TONE);char[] arr = chinese.toCharArray();for (int i = 0; i < arr.length; i++) {char ch = arr[i];if (ch > 128) { // 非ASCII码// 取得当前汉字的所有全拼try {String[] results = PinyinHelper.toHanyuPinyinStringArray(ch, defaultFormat);if (results != null) { // 非中文int len = results.length;if (len == 1) { // 不是多音字setValue(results[0]);} else { // 多音字// 合并同音不同声调（去重）List<String> duoyinziPinyins= new ArrayList<String>();// 定义一个空的数组for(int k=0;k<len;k++){if(!duoyinziPinyins.contains(results[k])){duoyinziPinyins.add(results[k]);}}if(duoyinziPinyins.size()==1){setValue(duoyinziPinyins.get(0));// 如果新的集合长度是1，就取第一个}else{// System.out.println("多音字：" + ch);int length = chinese.length();boolean flag = false;for (int x = 0; x < duoyinziPinyins.size(); x++) {String py = duoyinziPinyins.get(x);if (i + 3 <= length) { // 后向匹配2个汉字 大西洋if(matchPinyins(py,chinese, i, i+3)){flag = setValue(py);break;}}if (i + 2 <= length) { // 后向匹配 1个汉字 大西if(matchPinyins(py,chinese, i, i+2)){flag = setValue(py);break;}}if ((i - 2 >= 0) && (i + 1 <= length)) { // 前向匹配2个汉字if(matchPinyins(py,chinese, i-2, i+1)){flag = setValue(py);break;}}if ((i - 1 >= 0) && (i + 1 <= length)) { // 前向匹配1个汉字// 固大if(matchPinyins(py,chinese, i-1, i+1)){flag = setValue(py);break;}}if ((i - 1 >= 0) && (i + 2 <= length)) { // 前向1个，后向1个// 固大西if(matchPinyins(py,chinese, i-1, i+2)){flag = setValue(py);break;}}}if (!flag) { // 如果都没有找到，也就是常用读音System.out.println("default = " + duoyinziPinyins.get(0));setValue(duoyinziPinyins.get(0));}}}}} catch (BadHanyuPinyinOutputFormatCombination e) {e.printStackTrace();}} else {setValue(String.valueOf(ch));}}}// 截取词组，并匹配拼音表中的词组private static boolean matchPinyins(String py,String chinese,int m,int n){String s = chinese.substring(m,n);List<String> cizus = pinyinMap.get(py);if(cizus!=null&&cizus.contains(s)){return true;}return false;}private static boolean setValue(String py) {pinyin.add(py);hpinyin.add(py.substring(0, 1));return true;}/** * 初始化 所有的多音字词组 */public static void initPinyin() {// 读取多音字的全部拼音表;InputStream file = PinyinUtilsPro.class.getResourceAsStream("/duoyinzi_dic.txt");BufferedReader br = null;String s = null;try {br = new BufferedReader(new InputStreamReader(file,"UTF-8"));while ((s = br.readLine()) != null) {if (s != null) {String[] arr = s.split("#");String pinyin = arr[0];String chinese = arr[1];if (chinese != null) {String[] strs = chinese.split(" ");//去空List<String> list = arr2List(strs);pinyinMap.put(pinyin, list);}}}} catch (IOException e) {e.printStackTrace();} finally {try {br.close();} catch (IOException e) {e.printStackTrace();}}}// 数组转换成集合，并且去掉空格private static List<String> arr2List(String[] strs) {if(strs!=null&&strs.length>0){List<String> list = new ArrayList<String>();for (int i = 0; i < strs.length; i++) {if(!"".equals(strs[i].trim())){list.add(strs[i].trim());}}return list;}else{return null;}}}

使用方法：

再需要使用拼音的方法处，

PinyinUtilsPro.convertChineseToPinyin(s);String itemHeadpell = PinyinUtilsPro.getHeadPinyin();String itemAspell = PinyinUtilsPro.getPinyin();sysDicItem.setItemSpell(itemHeadpell);sysDicItem.setItemAspell(itemAspell);

文件下载链接：http://download.csdn.net/detail/e_real/8217659