修改代码

pz-admin/src/main/java/com/pz/web/controller/system/HospitalController.java

@@ -3,6 +3,8 @@ package com.pz.web.controller.system;
 import java.util.List;
 import java.util.Arrays;
 
+import cn.dev33.satoken.annotation.SaIgnore;
+import com.pz.system.domain.vo.CityVo;
 import lombok.RequiredArgsConstructor;
 import javax.servlet.http.HttpServletResponse;
 import javax.validation.constraints.*;
@@ -102,4 +104,14 @@ public class HospitalController extends BaseController {
                           @PathVariable Integer[] ids) {
         return toAjax(iHospitalService.deleteWithValidByIds(Arrays.asList(ids), true));
     }
+
+    /**
+     * 获取每个城市下的医院
+     *
+     */
+    @GetMapping("/cityAndHospitalList")
+    @SaIgnore
+    public R<List<CityVo>> cityAndHospitalList() {
+        return R.ok(iHospitalService.cityAndHospitalList());
+    }
 }

pz-system/src/main/java/com/pz/system/domain/vo/CityVo.java

@@ -47,4 +47,7 @@ public class CityVo {
 
     private List<CityVo> cityVo;
 
+    private String hospitalIds;
+
+    private List<HospitalVo> hospitalVoList;
 }

pz-system/src/main/java/com/pz/system/mapper/CityMapper.java

@@ -17,4 +17,7 @@ import java.util.List;
 @Mapper
 public interface CityMapper extends BaseMapperPlus<CityMapper, City, CityVo> {
     List<CityVo> selectAppCity(@Param("name") String name);
+
+    List<CityVo> selectVoListWithHospitals();
+
 }

pz-system/src/main/java/com/pz/system/service/IHospitalService.java

 package com.pz.system.service;
 
 import com.pz.system.domain.Hospital;
+import com.pz.system.domain.vo.CityVo;
 import com.pz.system.domain.vo.HospitalVo;
 import com.pz.system.domain.bo.HospitalBo;
 import com.pz.common.core.page.TableDataInfo;
@@ -46,4 +47,6 @@ public interface IHospitalService {
      * 校验并批量删除医院信息
      */
     Boolean deleteWithValidByIds(Collection<Integer> ids, Boolean isValid);
+
+    List<CityVo> cityAndHospitalList();
 }

pz-system/src/main/java/com/pz/system/service/impl/HospitalServiceImpl.java

@@ -13,8 +13,11 @@ import com.baomidou.mybatisplus.core.toolkit.Wrappers;
 import com.pz.common.enums.HospitalLevel;
 import com.pz.common.enums.HospitalType;
 import com.pz.common.utils.JsonUtils;
+import com.pz.common.utils.redis.RedisUtils;
 import com.pz.system.domain.Business;
+import com.pz.system.domain.City;
 import com.pz.system.domain.Department;
+import com.pz.system.domain.vo.CityVo;
 import com.pz.system.mapper.BusinessMapper;
 import com.pz.system.mapper.CityMapper;
 import com.pz.system.mapper.DepartmentMapper;
@@ -191,4 +194,17 @@ public class HospitalServiceImpl implements IHospitalService {
         }
         return baseMapper.deleteBatchIds(ids) > 0;
     }
+
+    @Override
+    public List<CityVo> cityAndHospitalList() {
+        List<CityVo> cities = cityMapper.selectVoListWithHospitals();
+        cities.forEach(cityVo -> {
+            if (StringUtils.isNotBlank(cityVo.getHospitalIds())) {
+                List<String> list = Arrays.asList(cityVo.getHospitalIds().split(","));
+                List<HospitalVo> hospitalVos = baseMapper.selectVoList(Wrappers.<Hospital>lambdaQuery().in(Hospital::getId, list));
+                cityVo.setHospitalVoList(hospitalVos);
+            }
+        });
+        return cities;
+    }
 }

pz-system/src/main/resources/mapper/system/CityMapper.xml

@@ -10,4 +10,11 @@
         GROUP BY sy
 
     </select>
+    <select id="selectVoListWithHospitals" resultType="com.pz.system.domain.vo.CityVo">
+        SELECT c.id, c.name, GROUP_CONCAT(h.id) AS hospitalIds
+        FROM city c
+                 LEFT JOIN hospital h ON c.id = h.city_id
+        GROUP BY c.id, c.name
+
+    </select>
 </mapper>