java 汉字转换英文小写工具类

/** * @author guandesong * @ClassName com.ylwl.common.Chinese2PinYinUtils * @version V1.0 * @Copyright  * @date 2015-9-21 下午4:22:40 *  *  */public class Chinese2PinYinUtils {/** * 将汉字转换为拼音 *  * @author Champion.Wong *  */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 };private 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;private String resource;private static Chinese2PinYinUtils chineseSpelling = new Chinese2PinYinUtils();public static Chinese2PinYinUtils getInstance() {return chineseSpelling;}public String getResource() {return resource;}public void setResource(String resource) {this.resource = resource;}private int getChsAscii(String chs) {int asc = 0;try {byte[] bytes = chs.getBytes("gb2312");if (bytes == null || bytes.length > 2 || bytes.length <= 0) { // 错误// logthrow new RuntimeException("illegal resource string");// System.out.println("error");}if (bytes.length == 1) { // 英文字符asc = bytes[0];}if (bytes.length == 2) { // 中文字符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);// e.printStackTrace();}return asc;}/** * 转换单个汉字 *  * @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;}/** * 转换一个或多个汉字 *  * @param str * @return */public String convertAll(String str) {String result = "";String strTemp = null;for (int j = 0; j < str.length(); j++) {strTemp = str.substring(j, j + 1);int ascii = getChsAscii(strTemp);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;}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) convert(key);if (value == null) {value = "unknown";}} else {value = key;}buffer.append(value);}return buffer.toString();}public String getSpelling() {return this.getSelling(this.getResource());}/** * 转换为拼音 *  * @param str * @return */public static String trans2PinYin(String str) {return Chinese2PinYinUtils.getInstance().convertAll(str).toUpperCase();}public static void main(String[] args) {String str = "大航海";// String strPinYin = new Trans2PinYin().convertAll(str);String strPinYin = trans2PinYin(str);System.out.println(strPinYin);}}