我有以下BO的
@Data
public abstract class CommonBO extends BaseBO{
@NotBlank(message ="{validation.not.blank}")
@Length(max = 100)
String name;
}
@Data
@MappedSuperclass
public abstract class CommonPersist extends BasePersist {
@Column(unique = true,nullable = false)
private String name;
}
然后我的BaseController
public abstract class BaseController <T extends BasePersist, K extends BaseBO> {
@RequestMapping(value = "/validate", method = RequestMethod.POST)
@ResponseBody
public ValidationResponse validate(@Valid K t,
BindingResult result, Locale locale) {
ValidationResponse res = new ValidationResponse();
List<ErrorMessage> errorMessages = new ArrayList<>();
if (!result.hasErrors()) {
res.setStatus(MessageTypes.SUCCESS);
} else {
res.setStatus(MessageTypes.FAIL);
List<FieldError> allErrors = result.getFieldErrors();
errorMessages = new ArrayList<>();
for (FieldError objectError : allErrors) {
errorMessages.add(new ErrorMessage(objectError.getField(),
objectError.getDefaultMessage()));
}
}
res.setErrorMessageList(errorMessages);
return res;
}
}
最后,我的另一个抽象控制器
public abstract class CommonController<T extends CommonPersist, K extends CommonBO> extends BaseController {
@Override
public ValidationResponse validate(@Valid K t, BindingResult result, Locale locale) {
ValidationResponse res = super.validate(t, result, locale);
if (res.getStatus().equalsIgnoreCase(MessageTypes.SUCCESS)) {
if (commonService.checkIfNameIsUsed(t.getName(), t.getId())) {
ErrorMessage em = new ErrorMessage("name", messageSource.getMessage("error.duplicate.is.used", null, locale));
res.getErrorMessageList().add(em);
res.setStatus(MessageTypes.FAIL);
}
}
return res;
}
}
@Override
注释给出错误“Method不会覆盖其超类中的方法”。我想从CommonBo extends BaseBO
开始,@ Override函数应该覆盖BaseController中的方法?
更新
基于@Slaks的回答
public abstract class CommonController<T extends CommonPersist, K extends CommonBO> extends BaseController<T,K> {
@Override
public ValidationResponse validate(@Valid K t, BindingResult result, Locale locale) {
ValidationResponse res = super.validate(t, result, locale);
if (res.getStatus().equalsIgnoreCase(MessageTypes.SUCCESS)) {
if (commonService.checkIfNameIsUsed(t.getName(), t.getId())) {
ErrorMessage em = new ErrorMessage("name", messageSource.getMessage("error.duplicate.is.used", null, locale));
res.getErrorMessageList().add(em);
res.setStatus(MessageTypes.FAIL);
}
}
return res;
}
}
答案 0 :(得分:3)
您的CommonController
类扩展了BaseController
,但没有指定任何类型参数(<...>
)。
因此,编译器会将其解释为BaseController<Object, Object>
。
您的方法不会将Object
作为参数,因此它与基本类型不匹配。
您需要在extends
子句中指定类型参数:
public abstract class
CommonController<T extends CommonPersist, K extends CommonBO>
extends BaseController<T,K> {