找不到类型的验证器：java.lang.Integer
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No validator could be found for type: java.lang.Integer
提问by Rafael
Trying to process my create/edit form I get the following error:
尝试处理我的创建/编辑表单时出现以下错误：
HTTP Status 500 - Request processing failed; nested exception is javax.validation.UnexpectedTypeException: HV000030: No validator could be found for type: java.lang.Integer.
HTTP 状态 500 - 请求处理失败；嵌套异常是 javax.validation.UnexpectedTypeException: HV000030: 找不到类型验证器：java.lang.Integer。
My Controller:
我的控制器：
/**
* This method will provide the medium to update an existing Game.
*
* @param id bla
* @param model bla
* @return bla
*/
@RequestMapping(value = {"/edit?id={id}"}, method = RequestMethod.GET)
public String initEditGame(
@PathVariable int id,
ModelMap model
) {
Game game = gameService.findById(id);
model.addAttribute("game", game);
model.addAttribute("edit", true);
return "host/games/createOrUpdate";
}
/**
* This method will be called on form submission, handling POST request for
* updating game in database. It also validates the user input
*
* @param game bla
* @param id bla
* @param result bla
* @param model bla
* @param locale blie
* @return bloe
*/
@RequestMapping(value = {"/edit?id={id}"}, method = RequestMethod.POST)
public String processEditGame(
@ModelAttribute("game") @Valid Game game,
BindingResult result,
ModelMap model,
@PathVariable int id,
Locale locale
) {
if (result.hasErrors()) {
return "host/games/createOrUpdate";
}
gameService.update(game);
model.addAttribute("success", "Game " + game.getName() + " updated successfully");
return "host/games/createGameSucces";
}
My model class:
我的模型类：
@Entity
@Table(name = "GAME")
public class Game implements Serializable {
@Id
@Column(name = "ID")
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Integer id;
@NotEmpty
@Column(name = "NAME", unique = true, nullable = false)
private String name;
@NotEmpty
@Column(name = "DESCRIPTION", nullable = false)
private String description;
@NotNull
@Length(min = 4, max = 4)
@Column(name = "CODE", unique = true, nullable = false)
private Integer code;
@NotNull
@Temporal(javax.persistence.TemporalType.DATE)
@Column(name = "CREATED")
@DateTimeFormat(pattern = "yyyy/MM/dd")
private Date created;
@NotNull
@Column(name = "STATE", nullable = false)
private String state = State.ACTIVE.getState();
/**
*
*/
public Game() {
}
/**
*
* @param name bla
* @param description bleh
*/
public Game(String name, String description) {
this.name = name;
this.description = description;
this.code = generateRoomNumber();
}
Any suggestions?
有什么建议？
回答by user3495816
I believe problem is with this:
我相信问题在于：
@NotNull
@Length(min = 4, max = 4)
@Column(name = "CODE", unique = true, nullable = false)
private Integer code;
@Lengthannotation should be used only for String not Integer
@Length注释应该只用于字符串而不是整数
