Vue3+java开发组队功能
Vue3+java开发系统组队功能
需求分析
- 创建用户可以创建一个队伍（一个房间队长），设置队伍人数，队伍名称（标题），描述，超时时间。
- 搜索
- 加入，用户可以加入未满的队伍（其他人，未满，未过期），是否需要队长同意
- 分享队伍，邀请人员
- 显示队伍人数
- 聊天
- 修改队伍信息
- 退出
- 解散
系统（接口）设计
- 判断请求参数是否为空
- 是否登录，未登录直接跳转到登录，不允许创建
- 校验信息
- 队伍人数大于1小于20
- 队伍名称<=20
- 队伍人数<=412
- 是否公开（int）不穿默认位0，公开
- 如果是加密状态，一定3要有密码，且密码<=32
- 超时时间>当前时间
- 校验用户最多创建5个队伍
- 插入队伍信息到队伍表
- 插入用户 => 队伍关系到关系表
实现
1. 库表设计（10min）
- 数据库表设计,队伍表，队伍用户表
create table team
(
id bigint auto_increment comment 'id'
primary key,
name varchar(256) not null comment '队伍名称',
description varchar(1024) null comment '描述',
maxNum int default 1 not null comment '最大人数',
expireTime datetime null comment '过期时间',
userId bigint comment '用户id',
status int default 0 not null comment '0 - 公开，1 - 私有，2 - 加密',
password varchar(512) null comment '密码',
createTime datetime default CURRENT_TIMESTAMP null comment '创建时间',
updateTime datetime default CURRENT_TIMESTAMP null on update CURRENT_TIMESTAMP,
isDelete tinyint default 0 not null comment '是否删除'
)
comment '队伍';
create table user_team
(
id bigint auto_increment comment 'id'
primary key,
userId bigint comment '用户id',
teamId bigint comment '队伍id',
joinTime datetime null comment '加入时间',
createTime datetime default CURRENT_TIMESTAMP null comment '创建时间',
updateTime datetime default CURRENT_TIMESTAMP null on update CURRENT_TIMESTAMP,
isDelete tinyint default 0 not null comment '是否删除'
)
comment '用户队伍关系';
2. 增删改查代码实现（10min）
- 使用mybatisX-generation插件自动生成实体类服务层，持久层代码
- 队伍基本增删改查代码编写
@RestController
@RequestMapping("/team")
@CrossOrigin(origins = {"http://localhost:5173"}, allowCredentials = "true")
@Slf4j
public class TeamController {
@Resource
private UserService userService;
@Resource
private TeamService teamService;
@PostMapping("/add")
public BaseResponse<Long> addTeam(@RequestBody Team team){
if(team == null){
throw new BusinessException(ErrorCode.PARAMS_ERROR);
}
boolean save = teamService.save(team);
if(!save){
throw new BusinessException(ErrorCode.SYSTEM_ERROR,"插入失败");
}
return ResultUtils.success(team.getId());
}
@PostMapping("/delete")
public BaseResponse<Boolean> deleteTeam(@RequestBody long id){
if(id <= 0){
throw new BusinessException(ErrorCode.PARAMS_ERROR);
}
boolean result = teamService.removeById(id);
if(!result){
throw new BusinessException(ErrorCode.SYSTEM_ERROR,"删除失败");
}
return ResultUtils.success(true);
}
@PostMapping("/delete")
public BaseResponse<Boolean> updateTeam(@RequestBody Team team){
if(team == null){
throw new BusinessException(ErrorCode.PARAMS_ERROR);
}
boolean result = teamService.updateById(team);
if(!result){
throw new BusinessException(ErrorCode.SYSTEM_ERROR,"更新失败");
}
return ResultUtils.success(true);
}
@GetMapping("/delete")
public BaseResponse<Team> getTeamById(@RequestBody long id){
if(id <= 0){
throw new BusinessException(ErrorCode.PARAMS_ERROR);
}
Team team = teamService.getById(id);
if(team == null){
throw new BusinessException(ErrorCode.NULL_ERROR,"数据为空！");
}
return ResultUtils.success(team);
}
}
- 查询队伍列表功能实现
- 新建TeamQuery业务请求参数封装类作为作为参数
- 实现查询队伍列表
@GetMapping("/list")
public BaseResponse<List<Team>> listTeams(TeamQuery teamQuery){
if (teamQuery == null){
throw new BusinessException(ErrorCode.PARAMS_ERROR);
}
Team team = new Team();
BeanUtils.copyProperties(team,teamQuery);
QueryWrapper<Team> queryWrapper = new QueryWrapper<>();
List<Team> teamList = teamService.list(queryWrapper);
return ResultUtils.success(teamList);
}
- 分页查询队伍列表功能实现
- 新建请求分页类
@Data
public class PageRequest implements Serializable {
private static final long serialVersionUID = -9075033996918167511L;
protected int pageSize;
protected int pageNum;
}
- 分页查询队伍实现代码
@GetMapping("/list/page")
public BaseResponse<Page<Team>> listTeamsByPage(TeamQuery teamQuery){
if(teamQuery == null){
throw new BusinessException(ErrorCode.PARAMS_ERROR);
}
Team team = new Team();
BeanUtils.copyProperties(team, teamQuery);
Page<Team> page = new Page<>(teamQuery.getPageNum(), teamQuery.getPageSize());
QueryWrapper<Team> queryWrapper = new QueryWrapper<>(team);
Page<Team> Resultpage = teamService.page(page, queryWrapper);
return ResultUtils.success(Resultpage);
}
- 使用Swagger+knif4j文档接口
3. 业务逻辑（30min）
- 创建队伍业务逻辑实现
@Service
public class TeamServiceImpl extends ServiceImpl<TeamMapper, Team>
implements TeamService {
@Resource
private UserTeamService userTeamService;
@Override
@Transactional(rollbackFor = Exception.class)
public long addTeam(Team team, User loginUser) {
if (team == null) {
throw new BusinessException(ErrorCode.PARAMS_ERROR);
}
if (loginUser == null) {
throw new BusinessException(ErrorCode.NO_AUTH);
}
final long userId = loginUser.getId();
int maxNum = Optional.ofNullable(team.getMaxNum()).orElse(0);
if (maxNum < 1 || maxNum > 20) {
throw new BusinessException(ErrorCode.PARAMS_ERROR, "队伍人数不满足要求");
}
String name = team.getName();
if (StringUtils.isBlank(name) || name.length() > 20) {
throw new BusinessException(ErrorCode.PARAMS_ERROR, "队伍标题不满足要求");
}
String description = team.getDescription();
if (StringUtils.isNotBlank(description) && description.length() > 512) {
throw new BusinessException(ErrorCode.PARAMS_ERROR, "队伍描述过长");
}
int status = Optional.ofNullable(team.getStatus()).orElse(0);
TeamStatusEnum statusEnum = TeamStatusEnum.getEnumByValue(status);
if (statusEnum == null) {
throw new BusinessException(ErrorCode.PARAMS_ERROR, "队伍状态不满足要求");
}
String password = team.getPassword();
if (TeamStatusEnum.SECRET.equals(statusEnum)) {
if (StringUtils.isBlank(password) || password.length() > 32) {
throw new BusinessException(ErrorCode.PARAMS_ERROR, "密码设置不正确");
}
}
Date expireTime = team.getExpireTime();
if (new Date().after(expireTime)) {
throw new BusinessException(ErrorCode.PARAMS_ERROR, "超出时间 > 当前时间");
}
QueryWrapper<Team> queryWrapper = new QueryWrapper<>();
queryWrapper.eq("userId", userId);
long hasTeamNum = this.count(queryWrapper);
if (hasTeamNum >= 5) {
throw new BusinessException(ErrorCode.PARAMS_ERROR, "用户最多创建5个队伍");
}
team.setId(null);
team.setUserId(userId);
boolean result = this.save(team);
Long teamId = team.getId();
if (!result || teamId == null) {
throw new BusinessException(ErrorCode.PARAMS_ERROR, "创建队伍失败");
}
UserTeam userTeam = new UserTeam();
userTeam.setUserId(userId);
userTeam.setTeamId(teamId);
userTeam.setJoinTime(new Date());
result = userTeamService.save(userTeam);
if (!result) {
throw new BusinessException(ErrorCode.PARAMS_ERROR, "创建队伍失败");
}
return teamId;
}
}
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