最近CMS系统为了增加查询的匹配率,需要增加拼音检索字段,在网上找到了pinyin4j的java开源类库,提供中文转汉语拼音(并且支持多音字), 呵呵,看了看他的demo,决定就用它了,因为我在实际使用的时候,需要考虑多音字的不同排列组合,下面的代码就是支持多音字的.
pinyin4j官方网址:http://pinyin4j.sourceforge.net/
maven依赖
<dependency> <groupId>com.belerweb</groupId> <artifactId>pinyin4j</artifactId> <version>2.5.0</version> </dependency>
使用范例
import java.util.HashSet; import java.util.Set; 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 pinyin4j { /** * 字符串集合转换字符串(逗号分隔) * @author wyh * @param stringSet * @return */ public static String makeStringByStringSet(Set<String> stringSet){ StringBuilder str = new StringBuilder(); int i=0; for(String s : stringSet){ if(i == stringSet.size() - 1){ str.append(s); }else{ str.append(s + ","); } i++; } return str.toString().toLowerCase(); } /** * 获取拼音集合 * @author wyh * @param src * @return Set<String> */ public static Set<String> getPinyin(String src){ if(src!=null && !src.trim().equalsIgnoreCase("")){ char[] srcChar ; srcChar=src.toCharArray(); //汉语拼音格式输出类 HanyuPinyinOutputFormat hanYuPinOutputFormat = new HanyuPinyinOutputFormat(); //输出设置,大小写,音标方式等 hanYuPinOutputFormat.setCaseType(HanyuPinyinCaseType.LOWERCASE); hanYuPinOutputFormat.setToneType(HanyuPinyinToneType.WITHOUT_TONE) hanYuPinOutputFormat.setVCharType(HanyuPinyinVCharType.WITH_V); String[][] temp = new String[src.length()][]; for(int i=0;i<srcChar.length;i++){ char c = srcChar[i]; //是中文或者a-z或者A-Z转换拼音(我的需求,是保留中文或者a-z或者A-Z) if(String.valueOf(c).matches("[\u4E00-\u9FA5]+")){ try{ temp[i] = PinyinHelper.toHanyuPinyinStringArray(srcChar[i], hanYuPinOutputFormat); }catch(BadHanyuPinyinOutputFormatCombination e) { e.printStackTrace(); } }else if(((int)c>=65 && (int)c<=90) || ((int)c>=97 && (int)c<=122)){ temp[i] = new String[]{String.valueOf(srcChar[i])}; }else{ temp[i] = new String[]{""}; } } String[] pingyinArray = Exchange(temp); Set<String> pinyinSet = new HashSet<String>(); for(int i=0;i<pingyinArray.length;i++){ pinyinSet.add(pingyinArray[i]); } return pinyinSet; } return null; } /** * 递归 * @author wyh * @param strJaggedArray * @return */ public static String[] Exchange(String[][] strJaggedArray){ String[][] temp = DoExchange(strJaggedArray); return temp[0]; } /** * 递归 * @author wyh * @param strJaggedArray * @return */ private static String[][] DoExchange(String[][] strJaggedArray){ int len = strJaggedArray.length; if(len >= 2){ int len1 = strJaggedArray[0].length; int len2 = strJaggedArray[1].length; int newlen = len1*len2; String[] temp = new String[newlen]; int Index = 0; for(int i=0;i<len1;i++){ for(int j=0;j<len2;j++){ temp[Index] = strJaggedArray[0][i] + strJaggedArray[1][j]; Index ++; } } String[][] newArray = new String[len-1][]; for(int i=2;i<len;i++){ newArray[i-1] = strJaggedArray[i]; } newArray[0] = temp; return DoExchange(newArray); }else{ return strJaggedArray; } } /** * @param args */ public static void main(String[] args) { String str = "单田芳"; System.out.println(makeStringByStringSet(getPinyin(str))); } }
控制台输出:dantianfang,shantianfang,chantianfang