package com.ruoyi.user.service.impl;
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import com.baomidou.mybatisplus.extension.conditions.query.LambdaQueryChainWrapper;
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import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
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import com.ruoyi.common.core.constant.Constants;
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import com.ruoyi.common.core.utils.StringUtils;
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import com.ruoyi.user.entity.Region;
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import com.ruoyi.user.mapper.RegionMapper;
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import com.ruoyi.user.service.RegionService;
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import com.ruoyi.user.vo.RegionVo;
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import net.sourceforge.pinyin4j.PinyinHelper;
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import net.sourceforge.pinyin4j.format.HanyuPinyinCaseType;
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import net.sourceforge.pinyin4j.format.HanyuPinyinOutputFormat;
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import net.sourceforge.pinyin4j.format.HanyuPinyinToneType;
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import net.sourceforge.pinyin4j.format.exception.BadHanyuPinyinOutputFormatCombination;
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import org.springframework.stereotype.Service;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.Map;
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import java.util.TreeMap;
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/**
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* <p>
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* 省市区三级联动 服务实现类
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* </p>
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*
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* @author hjl
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* @since 2024-06-12
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*/
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@Service
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public class RegionServiceImpl extends ServiceImpl<RegionMapper, Region> implements RegionService {
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@Override
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public Object urbanArea(String keyword) {
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LambdaQueryChainWrapper<Region> wrapper = this.lambdaQuery()
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.ne(Region::getParentId, Constants.ZERO);
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if (StringUtils.isNotBlank(keyword)) {
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wrapper.like(Region::getName, keyword);
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}
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// 获取所有市区信息
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List<Region> reginList = wrapper.orderByAsc(Region::getId).list();
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// 根据市区首字母分组排序
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return newSort(reginList);
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}
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/**
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* 获取汉字串拼音，英文字符不变
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*
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* @param chinese 汉字串
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* @return 汉语拼音
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*/
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public String getFullSpell(String chinese) {
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StringBuilder pybf = new StringBuilder();
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char[] arr = chinese.toCharArray();
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HanyuPinyinOutputFormat defaultFormat = new HanyuPinyinOutputFormat();
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defaultFormat.setCaseType(HanyuPinyinCaseType.UPPERCASE);
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defaultFormat.setToneType(HanyuPinyinToneType.WITHOUT_TONE);
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for (char c : arr) {
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if (c > 128) {
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try {
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pybf.append(PinyinHelper.toHanyuPinyinStringArray(c, defaultFormat)[0]);
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} catch (BadHanyuPinyinOutputFormatCombination e) {
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e.printStackTrace();
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}
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} else {
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pybf.append(c);
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}
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}
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return pybf.toString();
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}
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private Object newSort(List<Region> reginList) {
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// 按照城市名称排序，并分组
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Map<String, List<RegionVo>> map = new TreeMap<>();
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for (int i = 1; i <= 26; i++) {
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// 循环找出首字母一样的数据
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String letter = String.valueOf((char) (96 + i)).toUpperCase();
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List<RegionVo> regionVos = new ArrayList<>();
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for (Region region : reginList) {
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String firstLetter = getFullSpell(region.getName()).substring(0, 1);
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if (letter.equals(firstLetter)) {
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RegionVo regionVo = new RegionVo(region.getName(), region.getCode());
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regionVos.add(regionVo);
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}
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map.put(letter, regionVos);
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}
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}
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return map;
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}
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}
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