从mysql BLOB tojsp显示图像

Question

嗨我在jsp中有来自数据库的show image的问题，我有错误：

HTTP状态400 - 必需的整数参数＆＃39; id＆＃39;不存在

保存在数据库中的BLOB文件正确，这是我的代码：

@Entity
@Table(name = "skis")
public class Skis {

    @Id
    @Column(name= "skisId")
    @GeneratedValue
    private Integer skisId;

    @Column(name = "company", length = 20)
    private String company;

    @Column(name = "model", length = 20)
    private String model;

    @Column(name = "description", length = 200)
    private String description;

    @Lob
    @Basic(fetch = FetchType.LAZY)
    private byte[] photo;






 @Repository
public interface SkisDAO extends JpaRepository<Skis, Integer> {

   @Query("select s from Skis s where s.skisId = :skisId")
    Skis findBySkisId(@Param("skisId") Integer skisId);

}



@Controller
@RequestMapping("/skis")
public class SkisDisplayController {



    @Autowired
    private SkisDAO skisDAO;

    @RequestMapping(value = "/skisShow", method = RequestMethod.GET)
    public void showSkis(@RequestParam("skisId") Integer skisId, HttpServletResponse response, HttpServletRequest request)
    throws ServletException, IOException {

        Skis skis = skisDAO.findBySkisId(skisId);
        response.setContentType("image/jpeg, image/jpg, image/png, image/gif");
        response.getOutputStream().write(skis.getPhoto());

        response.getOutputStream().close();



    }
}

JSP：

<img class="media-object img-rounded img-responsive"  src="/projectName/skis/skisShow?id=${skis.skisId}" alt="photo" >

有人可以帮忙吗？