加盟商距离计算

csm-service/cms-service-user/src/main/java/com/mmc/iuav/user/service/impl/CooperationServiceImpl.java

@@ -17,12 +17,15 @@ import com.mmc.iuav.user.model.vo.*;
 import com.mmc.iuav.user.service.BackUserAccountService;
 import com.mmc.iuav.user.service.CooperationService;
 import com.mmc.iuav.user.service.UserAccountService;
+import com.mmc.iuav.user.util.LocationUtils;
 import com.mmc.iuav.user.util.SmsUtil;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 
+import java.util.Collections;
+import java.util.Comparator;
 import java.util.List;
 import java.util.stream.Collectors;
 
@@ -317,6 +320,19 @@ public class CooperationServiceImpl implements CooperationService {
         }
         List<CompanyInfoVO> list = cooperationDao.listCompanyInfoByCoopId(coopId, lon, lat, (pageNo - 1) * pageSize, pageSize)
                 .stream().map(CompanyInfoDO::buildCompanyInfoVO).collect(Collectors.toList());
+        this.computerDistance(list, lon, lat);
         return PageResult.buildPage(pageNo, pageSize, count, list);
     }
+
+    private List<CompanyInfoVO> computerDistance(List<CompanyInfoVO> companyInfoVOS, Double lon, Double lat) {
+        for (CompanyInfoVO d : companyInfoVOS) {
+            double distance = 0;
+            if (d.getLon() != null && d.getLon() != 0 && d.getLat() != null && d.getLat() != 0) {
+                distance = LocationUtils.getDistance(d.getLat(), d.getLon(), lat, lon);
+            }
+            d.setDistance(distance);
+        }
+        Collections.sort(companyInfoVOS, Comparator.comparing(CompanyInfoVO::getDistance));// 升序
+        return companyInfoVOS;
+    }
 }

csm-service/cms-service-user/src/main/java/com/mmc/iuav/user/util/LocationUtils.java

+package com.mmc.iuav.user.util;
+
+/**
+ * @author 作者 geDuo
+ * @version 创建时间：2021年11月5日 下午5:48:59
+ * @explain 高德地图对应经纬度计算距离
+ */
+public class LocationUtils {
+    // 地球赤道半径
+    private static double EARTH_RADIUS = 6378.137;
+
+    private static double rad(double d) {
+        return d * Math.PI / 180.0;
+    }
+
+    /**
+     * @描述 经纬度获取距离，单位为KM
+     * @参数 [lat1, lon1, lat2, lon2]
+     * @返回值 double
+     * @创建人 Young
+     * @创建时间 2019/3/13 20:33
+     **/
+    public static double getDistance(double lat1, double lon1, double lat2, double lon2) {
+        double radLat1 = rad(lat1);
+        double radLat2 = rad(lat2);
+        double a = radLat1 - radLat2;
+        double b = rad(lon1) - rad(lon2);
+        double s = 2 * Math.asin(Math.sqrt(
+                Math.pow(Math.sin(a / 2), 2) + Math.cos(radLat1) * Math.cos(radLat2) * Math.pow(Math.sin(b / 2), 2)));
+        s = s * EARTH_RADIUS;
+        s = Math.round(s * 10000d) / 10000d;
+        return s;
+    }
+
+    public static double getDistanceByM(double lat1, double lon1, double lat2, double lon2) {
+        double s = LocationUtils.getDistance(lat1, lon1, lat2, lon2) * 1000;
+        return s;
+    }
+
+    public static void main(String[] args) {
+        double distance = getDistance(34.810487, 117.323725, 22.576802, 113.94059);
+        System.out.println("距离" + distance + "KM");
+    }
+}

csm-service/cms-service-user/src/main/resources/mapper/CooperationDao.xml

@@ -453,8 +453,7 @@
                ci.score,
                ci.brand_name,
                ci.brand_logo,
-               cbu.back_user_account_id,
-               round(st_distance_sphere(point(ci.lon, ci.lat),point(#{lon}, #{lat}))/1000, 2) AS distance
+               cbu.back_user_account_id
         FROM user_apply_tag uat
                  INNER JOIN cooperation_tag ct ON uat.cooperation_tag_id = ct.id
                  INNER JOIN company_member cm ON cm.user_account_id = uat.user_account_id
@@ -462,7 +461,6 @@
                  INNER JOIN company_back_user cbu ON cbu.company_info_id = ci.id
         WHERE ct.id = #{coopId}
           and uat.is_deleted = 0 and uat.apply_status = 1 and ci.is_deleted = 0
-        ORDER BY distance ASC
             LIMIT #{pageNo}, #{pageSize}
     </select>
 </mapper>