From e6eb127b2ef4f297b093dcd9a5b47be457f67043 Mon Sep 17 00:00:00 2001
From: liyong <18434998025@163.com>
Date: 星期四, 29 一月 2026 14:29:05 +0800
Subject: [PATCH] feat(purchase): 碳立方对接

---
 ruoyi-system/src/main/java/com/ruoyi/basic/service/impl/ProvinceServiceImpl.java |  141 +++++++++++++++++++++++++++++++++++++++++++----
 1 files changed, 129 insertions(+), 12 deletions(-)

diff --git a/ruoyi-system/src/main/java/com/ruoyi/basic/service/impl/ProvinceServiceImpl.java b/ruoyi-system/src/main/java/com/ruoyi/basic/service/impl/ProvinceServiceImpl.java
index 9c9aa6b..9a9aeb8 100644
--- a/ruoyi-system/src/main/java/com/ruoyi/basic/service/impl/ProvinceServiceImpl.java
+++ b/ruoyi-system/src/main/java/com/ruoyi/basic/service/impl/ProvinceServiceImpl.java
@@ -1,22 +1,139 @@
 package com.ruoyi.basic.service.impl;
 
-import com.ruoyi.basic.entity.Province;
-import com.ruoyi.basic.mapper.ProvinceMapper;
-    import com.ruoyi.basic.service.ProvinceService;
+import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
 import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
-import org.springframework.stereotype.Service;
+import com.ruoyi.basic.entity.City;
+import com.ruoyi.basic.entity.District;
+import com.ruoyi.basic.entity.Province;
+import com.ruoyi.basic.entity.dto.TreeSelectOption;
+import com.ruoyi.basic.mapper.CityMapper;
+import com.ruoyi.basic.mapper.DistrictMapper;
+import com.ruoyi.basic.mapper.ProvinceMapper;
+import com.ruoyi.basic.service.ProvinceService;
 import lombok.RequiredArgsConstructor;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+import java.util.stream.Collectors;
 
 /**
-* <p>
-    * 鐪佽〃 鏈嶅姟瀹炵幇绫�
-    * </p>
-*
-* @author ruoyi
-* @since 2025-05-31
-*/
+ * <p>
+ * 鐪佽〃 鏈嶅姟瀹炵幇绫�
+ * </p>
+ *
+ * @author ruoyi
+ * @since 2025-05-31
+ */
 @Service
 @RequiredArgsConstructor
-    public class ProvinceServiceImpl extends ServiceImpl<ProvinceMapper, Province> implements ProvinceService {
+public class ProvinceServiceImpl extends ServiceImpl<ProvinceMapper, Province> implements ProvinceService {
 
+    @Autowired
+    private ProvinceMapper provinceMapper;
+
+    @Autowired
+    private CityMapper cityMapper;
+
+    @Autowired
+    private DistrictMapper districtMapper;
+
+    @Override
+    public List<TreeSelectOption> getAreaOptions() {
+        List<TreeSelectOption> res = new ArrayList<>();
+
+        // 鎵归噺鏌ヨ鎵�鏈夌渷浠�
+        List<Province> provinces = provinceMapper.selectList(null);
+        if (provinces.isEmpty()) {
+            return res;
+        }
+
+        // 鑾峰彇鎵�鏈夌渷浠絀D鐢ㄤ簬鎵归噺鏌ヨ鍩庡競
+        List<Long> provinceIds = provinces.stream()
+                .map(Province::getId)
+                .collect(Collectors.toList());
+
+        // 鎵归噺鏌ヨ鎵�鏈夊煄甯�
+        List<City> allCities = cityMapper.selectList(
+                new LambdaQueryWrapper<City>().in(City::getProvinceId, provinceIds));
+
+        // 灏嗗煄甯傛寜鐪佷唤ID鍒嗙粍
+        Map<Long, List<City>> cityMap = allCities.stream()
+                .collect(Collectors.groupingBy(City::getProvinceId));
+
+        // 鑾峰彇鎵�鏈夊煄甯侷D鐢ㄤ簬鎵归噺鏌ヨ鍖哄煙
+        List<Long> cityIds = allCities.stream()
+                .map(City::getId)
+                .collect(Collectors.toList());
+
+        // 鎵归噺鏌ヨ鎵�鏈夊尯鍩�
+        List<District> allDistricts = districtMapper.selectList(
+                new LambdaQueryWrapper<District>().in(District::getCityId, cityIds));
+
+        // 灏嗗尯鍩熸寜鍩庡競ID鍒嗙粍
+        Map<Long, List<District>> districtMap = allDistricts.stream()
+                .collect(Collectors.groupingBy(District::getCityId));
+
+        // 鏋勫缓鏍戝舰缁撴瀯
+        for (Province province : provinces) {
+            List<TreeSelectOption> cities = new ArrayList<>();
+
+            List<City> cityList = cityMap.get(province.getId());
+            if (cityList != null && !cityList.isEmpty()) {
+                for (City city : cityList) {
+                    List<TreeSelectOption> districts = new ArrayList<>();
+
+                    List<District> districtList = districtMap.get(city.getId());
+                    if (districtList != null && !districtList.isEmpty()) {
+                        for (District district : districtList) {
+                            districts.add(new TreeSelectOption(district.getId().toString(),
+                                    district.getName(), district.getId(), null));
+                        }
+                    }
+
+                    TreeSelectOption cityTreeSelectOption = new TreeSelectOption();
+                    cityTreeSelectOption.setValue(city.getId().toString());
+                    cityTreeSelectOption.setLabel(city.getName());
+                    cityTreeSelectOption.setId(city.getId());
+                    cityTreeSelectOption.setChildren(districts);
+
+                    cities.add(cityTreeSelectOption);
+                }
+            }
+
+            TreeSelectOption treeSelectOption = new TreeSelectOption();
+            treeSelectOption.setValue(province.getId().toString());
+            treeSelectOption.setLabel(province.getName());
+            treeSelectOption.setId(province.getId());
+            treeSelectOption.setChildren(cities);
+            res.add(treeSelectOption);
+        }
+
+        return res;
     }
+
+
+    @Override
+    public String getAreaDisplay(Long provinceId, Long cityId, Long districtId) {
+        Province province = provinceMapper.selectById(provinceId);
+        if (province == null) {
+            throw new RuntimeException("鐪佷笉瀛樺湪");
+        }
+        City city = cityMapper.selectById(cityId);
+        if (city == null) {
+            throw new RuntimeException("甯備笉瀛樺湪");
+        }
+        District district = districtMapper.selectById(districtId);
+        if (district == null) {
+            throw new RuntimeException("鍖轰笉瀛樺湪");
+        }
+
+        // 濡傛灉鐪佸拰甯傚悓鍚�
+        if (province.getName().equals(city.getName())) {
+            return province.getName() + " " + district.getName();
+        }
+        return province.getName() + city.getName() + district.getName();
+    }
+}

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