将项目中的多音字转拼音工具抽取出来了。具备资源小，算法简单的特色。
提供了一个多音字的字典，放在项目的assert文件夹中。
主要算法如下：
public class CharacterParser {
private static int[] pyvalue = new int[] { -20319, -20317, -20304, -20295, -20292, -20283, -20265, -20257, -20242,
-20230, -20051, -20036, -20032, -20026, -20002, -19990, -19986, -19982, -19976, -19805, -19784, -19775,
-19774, -19763, -19756, -19751, -19746, -19741, -19739, -19728, -19725, -19715, -19540, -19531, -19525,
-19515, -19500, -19484, -19479, -19467, -19289, -19288, -19281, -19275, -19270, -19263, -19261, -19249,
-19243, -19242, -19238, -19235, -19227, -19224, -19218, -19212, -19038, -19023, -19018, -19006, -19003,
-18996, -18977, -18961, -18952, -18783, -18774, -18773, -18763, -18756, -18741, -18735, -18731, -18722,
-18710, -18697, -18696, -18526, -18518, -18501, -18490, -18478, -18463, -18448, -18447, -18446, -18239,
-18237, -18231, -18220, -18211, -18201, -18184, -18183, -18181, -18012, -17997, -17988, -17970, -17964,
-17961, -17950, -17947, -17931, -17928, -17922, -17759, -17752, -17733, -17730, -17721, -17703, -17701,
-17697, -17692, -17683, -17676, -17496, -17487, -17482, -17468, -17454, -17433, -17427, -17417, -17202,
-17185, -16983, -16970, -16942, -16915, -16733, -16708, -16706, -16689, -16664, -16657, -16647, -16474,
-16470, -16465, -16459, -16452, -16448, -16433, -16429, -16427, -16423, -16419, -16412, -16407, -16403,
-16401, -16393, -16220, -16216, -16212, -16205, -16202, -16187, -16180, -16171, -16169, -16158, -16155,
-15959, -15958, -15944, -15933, -15920, -15915, -15903, -15889, -15878, -15707, -15701, -15681, -15667,
-15661, -15659, -15652, -15640, -15631, -15625, -15454, -15448, -15436, -15435, -15419, -15416, -15408,
-15394, -15385, -15377, -15375, -15369, -15363, -15362, -15183, -15180, -15165, -15158, -15153, -15150,
-15149, -15144, -15143, -15141, -15140, -15139, -15128, -15121, -15119, -15117, -15110, -15109, -14941,
-14937, -14933, -14930, -14929, -14928, -14926, -14922, -14921, -14914, -14908, -14902, -14894, -14889,
-14882, -14873, -14871, -14857, -14678, -14674, -14670, -14668, -14663, -14654, -14645, -14630, -14594,
-14429, -14407, -14399, -14384, -14379, -14368, -14355, -14353, -14345, -14170, -14159, -14151, -14149,
-14145, -14140, -14137, -14135, -14125, -14123, -14122, -14112, -14109, -14099, -14097, -14094, -14092,
-14090, -14087, -14083, -13917, -13914, -13910, -13907, -13906, -13905, -13896, -13894, -13878, -13870,
-13859, -13847, -13831, -13658, -13611, -13601, -13406, -13404, -13400, -13398, -13395, -13391, -13387,
-13383, -13367, -13359, -13356, -13343, -13340, -13329, -13326, -13318, -13147, -13138, -13120, -13107,
-13096, -13095, -13091, -13076, -13068, -13063, -13060, -12888, -12875, -12871, -12860, -12858, -12852,
-12849, -12838, -12831, -12829, -12812, -12802, -12607, -12597, -12594, -12585, -12556, -12359, -12346,
-12320, -12300, -12120, -12099, -12089, -12074, -12067, -12058, -12039, -11867, -11861, -11847, -11831,
-11798, -11781, -11604, -11589, -11536, -11358, -11340, -11339, -11324, -11303, -11097, -11077, -11067,
-11055, -11052, -11045, -11041, -11038, -11024, -11020, -11019, -11018, -11014, -10838, -10832, -10815,
-10800, -10790, -10780, -10764, -10587, -10544, -10533, -10519, -10331, -10329, -10328, -10322, -10315,
-10309, -10307, -10296, -10281, -10274, -10270, -10262, -10260, -10256, -10254 };
public static String[] pystr = new String[] { "a", "ai", "an", "ang", "ao", "ba", "bai", "ban", "bang", "bao",
"bei", "ben", "beng", "bi", "bian", "biao", "bie", "bin", "bing", "bo", "bu", "ca", "cai", "can", "cang",
"cao", "ce", "ceng", "cha", "chai", "chan", "chang", "chao", "che", "chen", "cheng", "chi", "chong", "chou",
"chu", "chuai", "chuan", "chuang", "chui", "chun", "chuo", "ci", "cong", "cou", "cu", "cuan", "cui", "cun",
"cuo", "da", "dai", "dan", "dang", "dao", "de", "deng", "di", "dian", "diao", "die", "ding", "diu", "dong",
"dou", "du", "duan", "dui", "dun", "duo", "e", "en", "er", "fa", "fan", "fang", "fei", "fen", "feng", "fo",
"fou", "fu", "ga", "gai", "gan", "gang", "gao", "ge", "gei", "gen", "geng", "gong", "gou", "gu", "gua",
"guai", "guan", "guang", "gui", "gun", "guo", "ha", "hai", "han", "hang", "hao", "he", "hei", "hen", "heng",
"hong", "hou", "hu", "hua", "huai", "huan", "huang", "hui", "hun", "huo", "ji", "jia", "jian", "jiang",
"jiao", "jie", "jin", "jing", "jiong", "jiu", "ju", "juan", "jue", "jun", "ka", "kai", "kan", "kang", "kao",
"ke", "ken", "keng", "kong", "kou", "ku", "kua", "kuai", "kuan", "kuang", "kui", "kun", "kuo", "la", "lai",
"lan", "lang", "lao", "le", "lei", "leng", "li", "lia", "lian", "liang", "liao", "lie", "lin", "ling",
"liu", "long", "lou", "lu", "lv", "luan", "lue", "lun", "luo", "ma", "mai", "man", "mang", "mao", "me",
"mei", "men", "meng", "mi", "mian", "miao", "mie", "min", "ming", "miu", "mo", "mou", "mu", "na", "nai",
"nan", "nang", "nao", "ne", "nei", "nen", "neng", "ni", "nian", "niang", "niao", "nie", "nin", "ning",
"niu", "nong", "nu", "nv", "nuan", "nue", "nuo", "o", "ou", "pa", "pai", "pan", "pang", "pao", "pei", "pen",
"peng", "pi", "pian", "piao", "pie", "pin", "ping", "po", "pu", "qi", "qia", "qian", "qiang", "qiao", "qie",
"qin", "qing", "qiong", "qiu", "qu", "quan", "que", "qun", "ran", "rang", "rao", "re", "ren", "reng", "ri",
"rong", "rou", "ru", "ruan", "rui", "run", "ruo", "sa", "sai", "san", "sang", "sao", "se", "sen", "seng",
"sha", "shai", "shan", "shang", "shao", "she", "shen", "sheng", "shi", "shou", "shu", "shua", "shuai",
"shuan", "shuang", "shui", "shun", "shuo", "si", "song", "sou", "su", "suan", "sui", "sun", "suo", "ta",
"tai", "tan", "tang", "tao", "te", "teng", "ti", "tian", "tiao", "tie", "ting", "tong", "tou", "tu", "tuan",
"tui", "tun", "tuo", "wa", "wai", "wan", "wang", "wei", "wen", "weng", "wo", "wu", "xi", "xia", "xian",
"xiang", "xiao", "xie", "xin", "xing", "xiong", "xiu", "xu", "xuan", "xue", "xun", "ya", "yan", "yang",
"yao", "ye", "yi", "yin", "ying", "yo", "yong", "you", "yu", "yuan", "yue", "yun", "za", "zai", "zan",
"zang", "zao", "ze", "zei", "zen", "zeng", "zha", "zhai", "zhan", "zhang", "zhao", "zhe", "zhen", "zheng",
"zhi", "zhong", "zhou", "zhu", "zhua", "zhuai", "zhuan", "zhuang", "zhui", "zhun", "zhuo", "zi", "zong",
"zou", "zu", "zuan", "zui", "zun", "zuo" };
private StringBuilder buffer;
public static CharacterParser characterParser;
private HashMap<String,String> polyphoneMap;
private static final String PINYIN_SEPARATOR = "#";
private static final String WORD_SEPARATOR = "/";
public CharacterParser(){
polyphoneMap = initDictionary();
}
/** * 汉字转成ASCII码 * * @param chs * @return */
private int getChsAscii(String chs) {
int asc = 0;
try {
byte[] bytes = chs.getBytes("gb2312");
if (bytes == null || bytes.length > 2 || bytes.length <= 0) {
throw new RuntimeException("illegal resource string");
}
if (bytes.length == 1) {
asc = bytes[0];
}
if (bytes.length == 2) {
int hightByte = 256 + bytes[0];
int lowByte = 256 + bytes[1];
asc = (256 * hightByte + lowByte) - 256 * 256;
}
} catch (Exception e) {
System.out.println("ERROR:ChineseSpelling.class-getChsAscii(String chs)" + e);
}
return asc;
}
/** * 单字解析 * * @param str * @return */
public String convert(String str) {
String result = null;
int ascii = getChsAscii(str);
if (ascii > 0 && ascii < 160) {
result = String.valueOf((char) ascii);
} else {
for (int i = (pyvalue.length - 1); i >= 0; i--) {
if (pyvalue[i] <= ascii) {
result = pystr[i];
break;
}
}
}
return result;
}
/**
* 解析单个
* @param str
* @return
*/
public String convertWithPolyphone(String str){
String result = null;
int ascii = getChsAscii(str);
if (ascii > 0 && ascii < 160) {
result = String.valueOf((char) ascii);
} else {
for (int i = (pyvalue.length - 1); i >= 0; i--) {
if (pyvalue[i] <= ascii) {
result = pystr[i];
break;
}
}
}
return result;
}
/**
* 解析句子带有多音字的
* @param chs
* @return
*/
public String getSellingWithPolyphone(String chs){
if(polyphoneMap != null && polyphoneMap.isEmpty()){
polyphoneMap = initDictionary();
}
String key, value, resultPy = null;
buffer = new StringBuilder();
for (int i = 0; i < chs.length(); i++) {
key = chs.substring(i, i + 1);
if (key.getBytes().length >= 2) {
value = (String) convert(key);
if (value == null) {
value = "unknown";
}
} else {
value = key;
}
resultPy = value;
String left = null;
if(i>=1 && i+1 <= chs.length()){
left = chs.substring(i-1,i+1);
if(polyphoneMap.containsKey(value) && polyphoneMap.get(value).contains(left)){
resultPy = value;
}
}
String right = null; //向右多取一个字,例如 [长]沙
if(i<=chs.length()-2){
right = chs.substring(i,i+2);
if(polyphoneMap.containsKey(right)){
resultPy = polyphoneMap.get(right);
}
}
String middle = null; //左右各多取一个字,例如 龙[爪]槐
if(i>=1 && i+2<=chs.length()){
middle = chs.substring(i-1,i+2);
if(polyphoneMap.containsKey(value) && polyphoneMap.get(value).contains(middle)){
resultPy = value;
}
}
String left3 = null; //向左多取2个字,如 芈月[传],列车长
if(i>=2 && i+1<=chs.length()){
left3 = chs.substring(i-2,i+1);
if(polyphoneMap.containsKey(value) && polyphoneMap.get(value).contains(left3)){
resultPy = value;
}
}
String right3 = null; //向右多取2个字,如 [长]孙无忌
if(i<=chs.length()-3){
right3 = chs.substring(i,i+3);
if(polyphoneMap.containsKey(value) && polyphoneMap.get(value).contains(right3)){
resultPy = value;
}
}
buffer.append(resultPy);
}
return buffer.toString();
}
public String getSimpleSellingPolyphone(String chs) {
if(polyphoneMap != null && polyphoneMap.isEmpty()){
polyphoneMap = initDictionary();
}
String key, value, resultPy = null;;
buffer = new StringBuilder();
for (int i = 0; i < chs.length(); i++) {
key = chs.substring(i, i + 1);
if (key.getBytes().length >= 2) {
value = (String) convert(key);
if (value == null) {
value = "unknown";
}
} else {
value = key;
}
resultPy = value;
String left = null;
if(i>=1 && i+1 <= chs.length()){
left = chs.substring(i-1,i+1);
if(polyphoneMap.containsKey(value) && polyphoneMap.get(value).contains(left)){
resultPy = value;
}
}
String right = null; //向右多取一个字,例如 [长]沙
if(i<=chs.length()-2){
right = chs.substring(i,i+2);
if(polyphoneMap.containsKey(right)){
resultPy = polyphoneMap.get(right);
}
}
String middle = null; //左右各多取一个字,例如 龙[爪]槐
if(i>=1 && i+2<=chs.length()){
middle = chs.substring(i-1,i+2);
if(polyphoneMap.containsKey(value) && polyphoneMap.get(value).contains(middle)){
resultPy = value;
}
}
String left3 = null; //向左多取2个字,如 芈月[传],列车长
if(i>=2 && i+1<=chs.length()){
left3 = chs.substring(i-2,i+1);
if(polyphoneMap.containsKey(value) && polyphoneMap.get(value).contains(left3)){
resultPy = value;
}
}
String right3 = null; //向右多取2个字,如 [长]孙无忌
if(i<=chs.length()-3){
right3 = chs.substring(i,i+3);
if(polyphoneMap.containsKey(value) && polyphoneMap.get(value).contains(right3)){
resultPy = value;
}
}
if(resultPy != null){
buffer.append(resultPy.charAt(0));
}else{
buffer.append(value.charAt(0));
}
}
return buffer.toString();
}
/**
* 汉语转成拼音， 全拼
*
* @param chs
* @return
*/
public String getSelling(String chs) {
String key, value;
buffer = new StringBuilder();
for (int i = 0; i < chs.length(); i++) {
key = chs.substring(i, i + 1);
if (key.getBytes().length >= 2) {
value = (String) convertWithPolyphone(key);
if (value == null) {
value = "unknown";
}
} else {
value = key;
}
buffer.append(value);
}
return buffer.toString();
}
/**
* 获取汉字词组的每个字的首字母
*
* @param chs
* @return
*/
public String getSimpleSelling(String chs) {
String key, value;
buffer = new StringBuilder();
for (int i = 0; i < chs.length(); i++) {
key = chs.substring(i, i + 1);
if (key.getBytes().length >= 2) {
value = (String) convert(key);
if (value == null) {
value = "unknown";
}
} else {
value = key;
}
buffer.append(value.charAt(0));
}
return buffer.toString();
}
/**
* 获取汉字词组的第一个拼音字母
*
* @param str
* @return
*/
public char getFirstCharater(String str) {
return getSelling(str).charAt(0);
}
public HashMap<String, String> initDictionary(){
String fileName = "py4j.dic";
InputStreamReader inputReader = null;
BufferedReader bufferedReader = null;
HashMap<String, String> polyphoneMap = new HashMap<String, String>();
try{
inputReader = new InputStreamReader(MyApplication.instance.getResources().getAssets().open(fileName),"UTF-8");
bufferedReader = new BufferedReader(inputReader);
String line = null;
while((line = bufferedReader.readLine()) != null){
String[] arr = line.split(PINYIN_SEPARATOR);
if(isNotEmpty(arr[1])){
String[] dyzs = arr[1].split(WORD_SEPARATOR);
for(String dyz: dyzs){
if(isNotEmpty(dyz)){
polyphoneMap.put(dyz.trim(),arr[0]);
}
}
}
}
}catch(Exception e){
e.printStackTrace();
}finally{
if(inputReader != null){
try {
inputReader.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
if(bufferedReader != null){
try {
bufferedReader.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
return polyphoneMap;
}
public boolean isEmpty(final CharSequence cs) {
return cs == null || cs.length() == 0;
}
public boolean isNotEmpty(final CharSequence str) {
return !isEmpty(str);
}
}