基于ssm框架出道选秀管理系统实现选手上传视频，查看选手个人页面，提交退赛申请表

好的，针对您的具体需求，我可以为您提供一些开发思路和代码实现。请注意，以下代码只是一个示例，您需要根据具体的业务需求进行修改和完善。

1. 选手上传视频功能：

前端页面：

<form action="/upload" method="post" enctype="multipart/form-data">
  <input type="file" name="videoFile">
  <input type="submit" value="上传">
</form>

Controller代码：

@Controller
public class VideoController {

  @Autowired
  private VideoService videoService;

  @PostMapping("/upload")
  public String uploadVideo(@RequestParam("videoFile") MultipartFile file) {
    String fileName = file.getOriginalFilename();
    // 保存文件到本地或云存储
    // ...
    // 将文件信息保存到数据库
    videoService.addVideo(fileName, file.getSize());
    return "redirect:/";
  }
}

Service代码：

@Service
public class VideoService {

  @Autowired
  private VideoMapper videoMapper;

  public void addVideo(String fileName, long fileSize) {
    Video video = new Video();
    video.setFileName(fileName);
    video.setFileSize(fileSize);
    videoMapper.addVideo(video);
  }
}

Mapper代码：

<insert id="addVideo" parameterType="com.example.entity.Video">
  insert into video (file_name, file_size) values (#{fileName}, #{fileSize})
</insert>

2. 查看选手个人页面功能：

前端页面：

<a href="/player/1">张三</a>

Controller代码：

@Controller
public class PlayerController {

  @Autowired
  private PlayerService playerService;

  @GetMapping("/player/{id}")
  public String getPlayerPage(@PathVariable("id") int playerId, Model model) {
    Player player = playerService.getPlayerById(playerId);
    model.addAttribute("player", player);
    return "player";
  }
}

Service代码：

@Service
public class PlayerService {

  @Autowired
  private PlayerMapper playerMapper;

  public Player getPlayerById(int playerId) {
    return playerMapper.getPlayerById(playerId);
  }
}

Mapper代码：

<select id="getPlayerById" parameterType="int" resultType="com.example.entity.Player">
  select * from player where id = #{id}
</select>

3. 提交退赛申请表功能：

前端页面：

<form action="/quit" method="post">
  <input type="text" name="reason" placeholder="请输入退赛原因">
  <input type="submit" value="提交">
</form>

Controller代码：

@Controller
public class QuitController {

  @Autowired
  private QuitService quitService;

  @PostMapping("/quit")
  public String quitCompetition(@RequestParam("reason") String reason) {
    QuitApplication application = new QuitApplication();
    application.setReason(reason);
    quitService.submitQuitApplication(application);
    return "redirect:/";
  }
}

Service代码：

@Service
public class QuitService {

  @Autowired
  private QuitMapper quitMapper;

  public void submitQuitApplication(QuitApplication application) {
    quitMapper.addQuitApplication(application);
  }
}

Mapper代码：

<insert id="addQuitApplication" parameterType="com.example.entity.QuitApplication">
  insert into quit_application (reason) values (#{reason})
</insert>

以上代码只是一个示例，您需要根据具体的业务需求进行修改和完善。同时，由于选秀管理系统是一个比较大的系统，需要投入较多的时间和精力进行开发。