java转换汉字为首字母搜索，

参阅：

https://www.cnblogs.com/liangblog/p/13825427.html

maven

 <dependencies>
    <dependency>
        <groupId>com.github.stuxuhai</groupId>
        <artifactId>jpinyin</artifactId>
        <version>1.1.8</version>
    </dependency>

import com.github.stuxuhai.jpinyin.ChineseHelper;
import com.github.stuxuhai.jpinyin.PinyinFormat;
import com.github.stuxuhai.jpinyin.PinyinHelper;




public class PinyinHelperTest {

    /**
     * 转换为每个汉字对应拼音首字母字符串
     * @param pinYinStr 需转换的汉字
     * @return 拼音字符串
     */
    public String changeToGetShortPinYin(String pinYinStr){

        String tempStr = null;

        try
        {
            tempStr = PinyinHelper.getShortPinyin(pinYinStr);
        } catch (Exception e)
        {
            e.printStackTrace();
        }
        return tempStr;

    }

    public boolean checkPinYin(char pinYinStr){

        boolean check  = false;
        try
        {
            check = PinyinHelper.hasMultiPinyin(pinYinStr);
        } catch (Exception e) {
            e.printStackTrace();
        }
        return check;
    }

    public static void main(String[] args) {
        String str = "大夫";
        PinyinHelperTest jp = new PinyinHelperTest();
//        System.out.println(jp.changeToMarkPinYin(str));
//        System.out.println(jp.changeToTonePinYin(str)); //有空格
//        System.out.println(jp.changeToSimplified(str));
        System.out.println(jp.checkPinYin('行'));

        System.out.println(jp.changeToGetShortPinYin(str));
    }
}

建议在数据库中，增加一个字段，作为首字母的存储。