JAVA同城组局找搭子小程序开发源码uniapp代码片段

以下是基于uniapp开发同城组局小程序的Java后端与前端代码片段参考分为核心功能模块和关键技术实现后端Java代码Spring Boot框架用户模块RestController RequestMapping(/api/user) public class UserController { Autowired private UserService userService; PostMapping(/login) public ResultUser login(RequestBody LoginDTO dto) { return userService.login(dto); } PostMapping(/location) public Result updateLocation(RequestHeader(token) String token, RequestBody LocationDTO dto) { return userService.updateLocation(token, dto); } }组局活动模块PostMapping(/activity/create) public Result createActivity(RequestBody ActivityDTO dto) { // 验证参数逻辑 if(StringUtils.isEmpty(dto.getTitle())) { return Result.error(标题不能为空); } return activityService.create(dto); } GetMapping(/activity/nearby) public ResultListActivityVO getNearbyActivities( RequestParam double longitude, RequestParam double latitude, RequestParam int radius) { return activityService.findNearby(longitude, latitude, radius); }前端Uniapp代码片段定位获取实现// pages/index/index.vue methods: { getLocation() { uni.getLocation({ type: gcj02, success: (res) { this.longitude res.longitude this.latitude res.latitude this.loadNearbyActivities() } }) } }活动卡片组件template view classactivity-card clicknavigateToDetail image :srcitem.coverImage modeaspectFill/ text classtitle{{item.title}}/text view classfooter text{{item.distance}}km/text text{{item.joinCount}}人已加入/text /view /view /template数据库设计关键表活动表结构CREATE TABLE activity ( id bigint NOT NULL AUTO_INCREMENT, title varchar(100) NOT NULL, content text, location point NOT NULL SRID 4326, address varchar(255) DEFAULT NULL, start_time datetime NOT NULL, creator_id bigint NOT NULL, max_people int DEFAULT 10, PRIMARY KEY (id), SPATIAL KEY idx_location (location) ) ENGINEInnoDB;关键技术点地理空间查询使用MySQL的ST_Distance_Sphere函数计算距离Query(value SELECT a.*, ST_Distance_Sphere(a.location, POINT(:lng,:lat)) as distance FROM activity a WHERE a.start_time NOW() HAVING distance :radius ORDER BY distance LIMIT 20, nativeQuery true)WebSocket实时通知活动状态变更时推送消息Autowired private SimpMessagingTemplate messagingTemplate; public void notifyMembers(Long activityId, String message) { messagingTemplate.convertAndSend( /topic/activity/ activityId, new NotificationDTO(message)); }uniapp跨平台适配通过条件编译处理平台差异// #ifdef MP-WEIXIN wx.requestSubscribeMessage({tmplIds:[模板ID]}) // #endif实际开发需补充支付接入、审核机制、敏感词过滤等模块。建议使用Redis缓存热门活动数据采用分库分表策略应对用户增长。前端需注意权限控制获取用户定位时需要显式授权提示。