利用pinyin4j依赖jar进行中文中文首字母排序工具类

pom文件需要引入pinyin4j包
工具类代码如下：

package com.bw.bwss.common.utils;

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;

import java.text.Collator;
import java.util.Arrays;
import java.util.Comparator;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

/**
 * @Author mxf
 * @Description 排序工具类
 * @Date 2021/4/26 11:22
 **/
public class SortUtils
{
    /**
     *  将一个装有person对象的 list 根据name 首字母排序
     * @param list 排序前的数据源
     * @param sortField 排序字段名称 必须为String类型
     * @return list排序后的数据
     */
    public static List listToSortByName(List list, String sortField){
        if (list == null || list.size() == 0)
        {
            return null;
        }
        Map<String, Object> map = new HashMap<>();
        String[] names = new String[list.size()];
        for (int i = 0; i < list.size(); i++)
        {
            //String name = list.get(i).getMenuName();
            //String name = list.get(i).getDeclaredField(sortField).toString();
            String name = String.valueOf(ClazzUtil.getFieldValueByName(sortField,list.get(i)));
            String alphabet = name.substring(0, 1);
            /*判断首字符是否为中文，如果是中文便将首字符拼音的首字母和&符号加在字符串前面*/
            if (alphabet.matches("[\\u4e00-\\u9fa5]+"))
            {
                name = getAlphabet(name) + "&" + name;
                names[i] = name;
            } else
            {
                names[i] = name;
            }
            //names[i] = name;
            map.put(name, list.get(i));
        }
        names = sort(names);
        list.clear();
        for (String name : names)
        {
            if (map.containsKey(name))
                list.add(map.get(name));
        }
        return list;
    }

    /**
     * 调用汉字首字母转化为拼音的根据类，需要在项目中导入pinyin4j.jar包
     * @param str
     * @return
     */
    private static String getAlphabet(String str)
    {
        HanyuPinyinOutputFormat defaultFormat = new HanyuPinyinOutputFormat();
        // 输出拼音全部小写
        defaultFormat.setCaseType(HanyuPinyinCaseType.LOWERCASE);
        // 不带声调
        defaultFormat.setToneType(HanyuPinyinToneType.WITHOUT_TONE);
        String pinyin = null;
        try
        {
            pinyin = PinyinHelper.toHanyuPinyinStringArray(str.charAt(0), defaultFormat)[0];
        } catch (BadHanyuPinyinOutputFormatCombination e)
        {
            e.printStackTrace();
        }
        assert pinyin != null;
        return pinyin.substring(0, 1);
    }

    /**
     * 根据数组里面首字母排序
     * @param data
     * @return
     */
    private static String[] sort(String[] data)
    {
        if (data == null || data.length == 0)
        {
            return null;
        }
        Comparator<Object> comparator = Collator.getInstance(java.util.Locale.CHINA);
        Arrays.sort(data, comparator);
        return data;
    }
}