Pinyin4j是一个流行的Java库,支持中文字符和拼音之间的转换,拼音输出格式可以定制,在项目中经常会遇到需求用户输入汉字后转换为拼音的场景,这时候Pinyin4j就可以派上用场
有自己私服的可以下载到私服,然后maven引入
<dependency>
<groupId>net.sourceforge.pinyin4j</groupId>
<artifactId>pinyin4j</artifactId>
<version>2.5.0</version>
</dependency>
或者自己去pinyin4j官网下载http://pinyin4j.sourceforge.net
Pinyin4j支持方式:
Pinyin4j支持多种格式:
针对什么情况,分别给出使用方法:
Pinyin4j pinyin4j = new Pinyin4j();
String first1 = pinyin4j.toPinYinUppercase("测试中文");
String first2 = pinyin4j.toPinYinUppercase("测试中文", "**");
String first3 = pinyin4j.toPinYinLowercase("测试中文");
String first4 = pinyin4j.toPinYinLowercase("测试中文","**");
String first5 = pinyin4j.toPinYinUppercaseInitials("测试中文");
String first6 = pinyin4j.toPinYinLowercaseInitials("测试中文");
然后给出封装的工具类java代码:
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 Pinyin4jUtil {
/**
* getFirstSpellPinYin:(多音字的时候获取第一个). <br/>
* @param src 传入的拼音字符串,以逗号隔开
* @param isFullSpell 是否全拼,true:全拼,false:第一个汉字全拼(其它汉字取首字母)
* @return 第一个拼音
*/
public static String getFirstSpellPinYin(String src , boolean isFullSpell) {
String targetStr = Pinyin4jUtil.makeStringByStringSet(Pinyin4jUtil.getPinyin(src, isFullSpell));
String[] split = targetStr.split(",");
if (split.length > 1) {
targetStr = split[0];
}
return targetStr;
}
/**
* makeStringByStringSet:(拼音字符串集合转换字符串(逗号分隔)). <br/>
* @param stringSet 拼音集合
* @return 带逗号字符串
*/
public static String makeStringByStringSet(Set<String> stringSet) {
StringBuilder str = new StringBuilder();
int i = 0;
if (stringSet.size() > 0) {
for (String s : stringSet) {
if (i == stringSet.size() - 1) {
str.append(s);
} else {
str.append(s + ",");
}
i++;
}
}
return str.toString().toLowerCase();
}
/**
* getPinyin:(获取汉字拼音). <br/>
* @param src 汉字
* @param isFullPin 是否全拼,如果为true:全拼,false:首字全拼
* @return
*/
public static Set<String> getPinyin(String src, boolean isFullSpell) {
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];
if (String.valueOf(c).matches("[\\u4E00-\\u9FA5]+")) {//中文
try {
temp[i] = PinyinHelper.toHanyuPinyinStringArray(
srcChar[i], hanYuPinOutputFormat);
if (!isFullSpell) {
if (i == 0) {
temp[i] = temp[i];
} else {
String[] tTemps = new String[temp[i].length];
for (int j = 0; j < temp[i].length; j++) {
char t = temp[i][j].charAt(0);
tTemps[j] = Character.toString(t);
}
temp[i] = tTemps;
}
}
} catch (BadHanyuPinyinOutputFormatCombination e) {
e.printStackTrace();
}
} else if (((int) c >= 65 && (int) c <= 90)
|| ((int) c >= 97 && (int) c <= 122)) {//英文
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
* @param strJaggedArray
* @return
*/
public static String[] exchange(String[][] strJaggedArray) {
String[][] temp = doExchange(strJaggedArray);
return temp[0];
}
/**
* 递归
* @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;
}
}
}