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查询附近的人（可以查看版）

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This commit is contained in:
yang
2026-01-07 17:07:16 +08:00
parent 31fd23afa8
commit 31b0dffd68
8 changed files with 46 additions and 16 deletions
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7
src/main/java/com/bao/dating/controller/UserController.java
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@@ -6,7 +6,6 @@ import com.bao.dating.common.ResultCode;
import com.bao.dating.context.UserContext;
import com.bao.dating.pojo.dto.UserInfoUpdateDTO;
import com.bao.dating.pojo.dto.UserLoginDTO;
import com.bao.dating.pojo.entity.User;
import com.bao.dating.pojo.vo.UserInfoVO;
import com.bao.dating.pojo.vo.UserLoginVO;
import com.bao.dating.service.UserService;
@@ -131,7 +130,7 @@ public class UserController {
}
@GetMapping("/nearby")
public Result<List<User>> nearby( @RequestParam(defaultValue = "5") double distance){
public Result<List<UserInfoVO>> nearby(@RequestParam(defaultValue = "5") double distance){
// 获取当前线程的用户 ID
Long userId = UserContext.getUserId();
if (userId == null) {
@@ -158,10 +157,10 @@ public class UserController {
longitude = (longitude != null) ? longitude : 0.0;
// 查询附近用户
List<User> nearbyUsers = userService.findNearbyUsers(latitude, longitude, distance);
List<UserInfoVO> nearbyUsers = userService.findNearbyUsers(latitude, longitude, distance);
// 返回成功结果
return Result.success(ResultCode.SUCCESS, "获取附近用户成功", nearbyUsers);
return Result.success(ResultCode.SUCCESS, "查询成功", nearbyUsers);
}
}

2
src/main/java/com/bao/dating/mapper/CommentsMapper.java
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@@ -5,7 +5,7 @@ import com.bao.dating.pojo.entity.Comments;
import org.apache.ibatis.annotations.*;
import java.util.List;
@Mapper
public interface CommentsMapper {
// 添加评论
@Insert("INSERT INTO dating.comments(content, user_id, post_id, created_at) VALUES(#{content}, #{user_id}, #{post_id}, #{created_at})")

2
src/main/java/com/bao/dating/mapper/PostFavoriteMapper.java
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@@ -7,7 +7,7 @@ import org.apache.ibatis.annotations.Param;
import java.util.List;
@Mapper
public interface PostFavoriteMapper {
public interface PostFavoriteMapper {
//查询当前已收藏所有用户
List<Long> selectUserIDByPostID(@Param("postId") Long postId);
int addPostFavorite(PostFavorite postFavorite);

3
src/main/java/com/bao/dating/mapper/UserMapper.java
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@@ -2,6 +2,7 @@ package com.bao.dating.mapper;
import com.bao.dating.pojo.dto.UserInfoUpdateDTO;
import com.bao.dating.pojo.entity.User;
import com.bao.dating.pojo.vo.UserInfoVO;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Param;
@@ -46,5 +47,5 @@ public interface UserMapper {
* @param maxLng 最大经度
* @return 用户列表
*/
List<User> findByLatLngRange( @Param("minLat") double minLat, @Param("maxLat") double maxLat, @Param("minLng") double minLng, @Param("maxLng") double maxLng);
List<UserInfoVO> findByLatLngRange(@Param("minLat") double minLat, @Param("maxLat") double maxLat, @Param("minLng") double minLng, @Param("maxLng") double maxLng);
}

4
src/main/java/com/bao/dating/pojo/entity/User.java
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@@ -44,7 +44,7 @@ public class User implements Serializable {
private String userPhone;
private Double latitude; // 纬度
private Double latitude;
private Double longitude; // 经度
private Double longitude;
}

2
src/main/java/com/bao/dating/service/UserService.java
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@@ -69,5 +69,5 @@ public interface UserService {
* @param radiusKm 半径 km
* @return 用户列表
*/
List<User> findNearbyUsers(double lat,double lng,double radiusKm);
List<UserInfoVO> findNearbyUsers(double lat,double lng,double radiusKm);
}

8
src/main/java/com/bao/dating/service/impl/UserServiceImpl.java
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@@ -376,7 +376,7 @@ public class UserServiceImpl implements UserService {
}
@Override
public List<User> findNearbyUsers(double lat, double lng, double radiusKm) {
public List<UserInfoVO> findNearbyUsers(double lat, double lng, double radiusKm) {
//先用经纬度范围筛选（矩形框，提高性能）
double delta = radiusKm / 111.0; // 1° ≈ 111km
double minLat = lat - delta;// 最小纬度
@@ -388,11 +388,11 @@ public class UserServiceImpl implements UserService {
System.out.println("Min Latitude: " + minLat + ", Max Latitude: " + maxLat);
System.out.println("Min Longitude: " + minLng + ", Max Longitude: " + maxLng);
List<User> byLatLngRange = userMapper.findByLatLngRange(minLat, maxLat, minLng, maxLng);
List<UserInfoVO> byLatLngRange = userMapper.findByLatLngRange(minLat, maxLat, minLng, maxLng);
//精确计算距离，筛选在半径内的用户
List<User> result = new ArrayList<>();
for (User u:byLatLngRange){
List<UserInfoVO> result = new ArrayList<>();
for (UserInfoVO u:byLatLngRange){
// 检查用户是否有经纬度信息
if (u.getLatitude() != null && u.getLongitude() != null) {
double distance = DistanceUtil.calculate(lat, lng, u.getLatitude(), u.getLongitude());

34
src/main/resources/com/bao/dating/mapper/UserMapper.xml
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@@ -5,6 +5,22 @@
<mapper namespace="com.bao.dating.mapper.UserMapper">
<!--根据用户名查询用户-->
<resultMap id="UserInfoVOResultMap" type="com.bao.dating.pojo.vo.UserInfoVO">
<id property="userId" column="user_id"/>
<result property="userName" column="user_name"/>
<result property="nickname" column="nickname"/>
<result property="avatarUrl" column="avatar_url"/>
<result property="backgroundUrl" column="background_url"/>
<result property="gender" column="gender"/>
<result property="birthday" column="birthday"/>
<result property="hobbies" column="hobbies" typeHandler="com.bao.dating.handler.ListToJsonTypeHandler"/>
<result property="signature" column="signature"/>
<result property="createdAt" column="created_at"/>
<result property="updatedAt" column="updated_at"/>
<result property="latitude" column="user_latitude"/>
<result property="longitude" column="user_longitude"/>
</resultMap>
<select id="getByUsername" resultType="com.bao.dating.pojo.entity.User">
SELECT
user_id,
@@ -82,7 +98,21 @@
<select id="selectByPhone" resultType="com.bao.dating.pojo.entity.User">
select * from dating.user where user_phone =#{phone}
</select>
<select id="findByLatLngRange" resultType="com.bao.dating.pojo.entity.User">
SELECT * FROM user WHERE user_latitude BETWEEN #{minLat} AND #{maxLat} AND user_longitude BETWEEN #{minLng} AND #{maxLng}
<select id="findByLatLngRange" resultMap="UserInfoVOResultMap">
SELECT
user_id,
user_name,
nickname,
avatar_url,
background_url,
gender,
birthday,
hobbies,
signature,
created_at,
updated_at,
user_latitude,
user_longitude
FROM user WHERE user_latitude BETWEEN #{minLat} AND #{maxLat} AND user_longitude BETWEEN #{minLng} AND #{maxLng}
</select>
</mapper>