调用这个工具类，可以实现下拉框的汉字、拼音、首字母大小写，全拼检索选项
import java.util.Arrays;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.exception.BadHanyuPinyinOutputFormatCombination;/*** 拼音转汉字,汉字转拼音工具类* * @author * @Date 5月4日*/public class PinYin4jUtils {/*** 将字符串转换成拼音数组* * @param src* @return*/public static String[] stringToPinyin(String src) {return stringToPinyin(src, false, null);}/*** 将字符串转换成拼音数组* * @param src* @return*/public static String[] stringToPinyin(String src, String separator) {return stringToPinyin(src, true, separator);}/*** 将字符串转换成拼音数组* * @param src* @param isPolyphone* 是否查出多音字的所有拼音* @param separator* 多音字拼音之间的分隔符* @return*/public static String[] stringToPinyin(String src, boolean isPolyphone, String separator) {// 判断字符串是否为空if ("".equals(src) || null == src) {return null;}char[] srcChar = src.toCharArray();int srcCount = srcChar.length;String[] srcStr = new String[srcCount];for (int i = 0; i < srcCount; i++) {srcStr[i] = charToPinyin(srcChar[i], isPolyphone, separator);}return srcStr;}/*** 将单个字符转换成拼音* * @param src* @return*/public static String charToPinyin(char src, boolean isPolyphone, String separator) {// 创建汉语拼音处理类HanyuPinyinOutputFormat defaultFormat = new HanyuPinyinOutputFormat();// 输出设置，大小写，音标方式defaultFormat.setCaseType(HanyuPinyinCaseType.LOWERCASE);defaultFormat.setToneType(HanyuPinyinToneType.WITHOUT_TONE);StringBuffer tempPinying = new StringBuffer();// 如果是中文if (src > 128) {try {// 转换得出结果String[] strs = PinyinHelper.toHanyuPinyinStringArray(src, defaultFormat);// 是否查出多音字，默认是查出多音字的第一个字符if (isPolyphone && null != separator) {for (int i = 0; i < strs.length; i++) {tempPinying.append(strs[i]);if (strs.length != (i + 1)) {// 多音字之间用特殊符号间隔起来tempPinying.append(separator);}}} else {tempPinying.append(strs[0]);}} catch (BadHanyuPinyinOutputFormatCombination e) {e.printStackTrace();}} else {tempPinying.append(src);}return tempPinying.toString();}public static String hanziToPinyin(String hanzi) {return hanziToPinyin(hanzi, " ");}/*** 将汉字转换成拼音* * @param hanzi* @param separator* @return*/public static String hanziToPinyin(String hanzi, String separator) {// 创建汉语拼音处理类HanyuPinyinOutputFormat defaultFormat = new HanyuPinyinOutputFormat();// 输出设置，大小写，音标方式defaultFormat.setCaseType(HanyuPinyinCaseType.LOWERCASE);defaultFormat.setToneType(HanyuPinyinToneType.WITHOUT_TONE);String pinyingStr = "";try {pinyingStr = PinyinHelper.toHanyuPinyinString(hanzi, defaultFormat, separator);} catch (BadHanyuPinyinOutputFormatCombination e) {// TODO Auto-generated catch blocke.printStackTrace();}return pinyingStr;}/*** 将字符串数组转换成字符串* * @param str* @param separator* 各个字符串之间的分隔符* @return*/public static String stringArrayToString(String[] str, String separator) {StringBuffer sb = new StringBuffer();for (int i = 0; i < str.length; i++) {sb.append(str[i]);if (str.length != (i + 1)) {sb.append(separator);}}return sb.toString();}/*** 简单的将各个字符数组之间连接起来* * @param str* @return*/public static String stringArrayToString(String[] str) {return stringArrayToString(str, "");}/*** 将字符数组转换成字符串* * @param str* @param separator* 各个字符串之间的分隔符* @return*/public static String charArrayToString(char[] ch, String separator) {StringBuffer sb = new StringBuffer();for (int i = 0; i < ch.length; i++) {sb.append(ch[i]);if (ch.length != (i + 1)) {sb.append(separator);}}return sb.toString();}/*** 将字符数组转换成字符串* * @param str* @return*/public static String charArrayToString(char[] ch) {return charArrayToString(ch, " ");}/*** 取汉字的首字母* * @param src* @param isCapital* 是否是大写* @return*/public static char[] getHeadByChar(char src, boolean isCapital) {// 如果不是汉字直接返回if (src <= 128) {return new char[] { src };}// 获取所有的拼音String[] pinyingStr = PinyinHelper.toHanyuPinyinStringArray(src);// 创建返回对象int polyphoneSize = pinyingStr.length;char[] headChars = new char[polyphoneSize];int i = 0;// 截取首字符for (String s : pinyingStr) {char headChar = s.charAt(0);// 首字母是否大写，默认是小写if (isCapital) {headChars[i] = Character.toUpperCase(headChar);} else {headChars[i] = headChar;}i++;}return headChars;}/*** 取汉字的首字母(默认是大写)* * @param src* @return*/public static char[] getHeadByChar(char src) {return getHeadByChar(src, true);}/*** 查找字符串首字母* * @param src* @return*/public static String[] getHeadByString(String src) {return getHeadByString(src, true);}/*** 查找字符串首字母* * @param src* @param isCapital* 是否大写* @return*/public static String[] getHeadByString(String src, boolean isCapital) {return getHeadByString(src, isCapital, null);}/*** 查找字符串首字母* * @param src* @param isCapital* 是否大写* @param separator* 分隔符* @return*/public static String[] getHeadByString(String src, boolean isCapital, String separator) {char[] chars = src.toCharArray();String[] headString = new String[chars.length];int i = 0;for (char ch : chars) {char[] chs = getHeadByChar(ch, isCapital);StringBuffer sb = new StringBuffer();if (null != separator) {int j = 1;for (char ch1 : chs) {sb.append(ch1);if (j != chs.length) {sb.append(separator);}j++;}} else {sb.append(chs[0]);}headString[i] = sb.toString();i++;}return headString;}public static void main(String[] args) {// pin4j 简码 和 城市编码String s1 = "中华人民共和国";String[] headArray = getHeadByString(s1); // 获得每个汉字拼音首字母System.out.println(Arrays.toString(headArray));String s2 = "长城";System.out.println(Arrays.toString(stringToPinyin(s2, true, ",")));String s3 = "长";System.out.println(Arrays.toString(stringToPinyin(s3, true, ",")));}}
