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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 16:27:35 +08:00
parent d8d46ab089
commit 31fd23afa8
7 changed files with 126 additions and 3 deletions
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55
src/main/java/com/bao/dating/controller/UserController.java
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@@ -6,6 +6,7 @@ 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;
@@ -14,6 +15,7 @@ import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.multipart.MultipartFile;
import java.util.List;
import javax.servlet.http.HttpServletRequest;
import java.util.Map;
@@ -109,4 +111,57 @@ public class UserController {
return ok ? Result.success(ResultCode.SUCCESS, "登录成功") : Result.error(ResultCode.SYSTEM_ERROR, "登录失败");
}
/**
* 登录
* @param body 登录参数
*/
@PostMapping("/loginPhone")
public Result<?> loginPhone(@RequestBody Map<String, String> body) {
String phone = body.get("phone");
String code = body.get("code");
//校验验证码
boolean verify = userService.verifyCode(phone, code);
if (!verify){
return Result.error(ResultCode.SYSTEM_ERROR, "验证码错误或已过期");
}
//登录
UserLoginVO vo = userService.loginByPhone(phone);
return Result.success(ResultCode.SUCCESS, "登录成功", vo);
}
@GetMapping("/nearby")
public Result<List<User>> nearby( @RequestParam(defaultValue = "5") double distance){
// 获取当前线程的用户 ID
Long userId = UserContext.getUserId();
if (userId == null) {
return Result.error(ResultCode.SYSTEM_ERROR, "用户未登录");
}
// 通过 UserID 获取当前用户的经纬度信息
UserInfoVO currentUser = userService.getUserInfo(userId);
if (currentUser == null) {
return Result.error(ResultCode.SYSTEM_ERROR, "用户信息获取失败");
}
// 获取当前用户的经纬度
Double latitude = currentUser.getLatitude();
Double longitude = currentUser.getLongitude();
// 检查经纬度是否为空
if (latitude == null || longitude == null) {
return Result.error(ResultCode.SYSTEM_ERROR, "用户经纬度信息未完善");
}
// 这里可以添加默认值，比如如果 latitude 或 longitude 为 null，则设置为某个默认值（例如 0）
latitude = (latitude != null) ? latitude : 0.0;
longitude = (longitude != null) ? longitude : 0.0;
// 查询附近用户
List<User> 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);
}
}

2
src/main/java/com/bao/dating/mapper/UserMapper.java
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@@ -36,6 +36,8 @@ public interface UserMapper {
*/
void updateUserInfoByUserId(UserInfoUpdateDTO userInfoUpdateDTO);
User selectByPhone(@Param("phone") String phone);
/**
* 根据经纬度范围查询用户
* @param minLat 最小纬度

4
src/main/java/com/bao/dating/pojo/entity/User.java
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@@ -43,4 +43,8 @@ public class User implements Serializable {
private String userEmail;
private String userPhone;
private Double latitude; // 纬度
private Double longitude; // 经度
}

14
src/main/java/com/bao/dating/service/UserService.java
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@@ -2,10 +2,13 @@ package com.bao.dating.service;
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 org.springframework.web.multipart.MultipartFile;
import java.util.List;
/**
* 用户服务接口
* @author KilLze
@@ -56,4 +59,15 @@ public interface UserService {
void sendSmsCode(String phone);
boolean verifyCode(String phone, String code);
UserLoginVO loginByPhone(String phone);
/**
* 获取指定经纬度范围内的用户
* @param lat 用户纬度
* @param lng 用户经度
* @param radiusKm 半径 km
* @return 用户列表
*/
List<User> findNearbyUsers(double lat,double lng,double radiusKm);
}

44
src/main/java/com/bao/dating/service/impl/UserServiceImpl.java
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@@ -15,6 +15,7 @@ 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;
import com.bao.dating.util.*;
import com.bao.dating.util.CodeUtil;
import com.bao.dating.util.FileUtil;
import com.bao.dating.util.JwtUtil;
@@ -331,6 +332,7 @@ public class UserServiceImpl implements UserService {
if (Boolean.TRUE.equals(exists)){
throw new RuntimeException("请勿频繁发送验证码");
}
// 生成验证码
String code = CodeUtil.generateCode();
// 发送短信
@@ -359,4 +361,46 @@ public class UserServiceImpl implements UserService {
return true;
}
@Override
public UserLoginVO loginByPhone(String phone) {
//根据手机号查询用户
User user = userMapper.selectByPhone(phone);
//创建token
String token = JwtUtil.generateToken(user.getUserId().toString());
//封装返回结果
UserLoginVO VO = new UserLoginVO();
VO.setUserId(user.getUserId());
VO.setToken(token);
return VO;
}
@Override
public List<User> 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
double maxLat = lat + delta;// 最大纬度
double minLng = lng - delta;// 最小经度
double maxLng = lng + delta;// 最大经度
// 打印经纬度范围
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);
//精确计算距离，筛选在半径内的用户
List<User> result = new ArrayList<>();
for (User 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());
if (distance <= radiusKm){
result.add(u);
}
}
}
return result;
}
}

2
src/main/java/com/bao/dating/util/DistanceUtil.java
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@@ -1,5 +1,7 @@
package com.bao.dating.util;
//Haversine 公式（标准写法）
public class DistanceUtil {
private static final double EARTH_RADIUS = 6371.0; // 地球半径 km

6
src/main/resources/com/bao/dating/mapper/UserMapper.xml
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@@ -43,8 +43,10 @@
hobbies,
signature,
created_at,
updated_at
FROM user WHERE user_id = #{userId}
updated_at,
user_latitude,
user_longitude
FROM dating.user WHERE user_id = #{userId}
</select>
<!--根据ID更新动态-->