我正在使用
Spring Hibernate Spring-MVC.
我想定义一个自定义约束,结合其他两个预定义的验证注释：@NotNull @Size,如下所示：
我想定义一个自定义约束,结合其他两个预定义的验证注释：@NotNull @Size,如下所示：
import javax.validation.constraints.NotNull;
import javax.validation.constraints.Size;
@NotNull
@Size(min=4)
public @interface JPasswordConstraint {
} // this is not correct. It's just a suggestion.
我想在我的表单模型中使用此注释.
public class ChangePasswordForm {
@NotNull
private String currentPass;
@JPasswordConstraint
private String newPass;
@JPasswordConstraint
private String newPassConfirm;
}
UserController.java
@RequestMapping(value = "/pass",method = RequestMethod.POST)
public String pass2(Model model,@Valid @modelattribute("changePasswordForm") ChangePasswordForm form,BindingResult result) {
model.addAttribute("changePasswordForm",form);
try {
userService.changePassword(form);
} catch (Exception ex) {
result.rejectValue(null,"error.objec",ex.getMessage());
System.out.println(result);
}
if (!result.hasErrors()) {
model.addAttribute("successMessage","password changed successfully!");
}
return "user/pass";
}
但它不起作用.它接受少于4个字符的密码.
我怎么解决这个问题？
解决方法
这有点晚了,但结合了验证注释的技术
https://docs.jboss.org/hibernate/stable/validator/reference/en-US/html_single/?v=5.4#section-constraint-composition
在撰写本文时,可能没有它,但解决方案正在跟进
@NotNull
@Size(min=4)
@Target({ METHOD,FIELD,ANNOTATION_TYPE })
@Retention(RUNTIME)
@Constraint(validatedBy = { })
@Documented
public @interface JPasswordConstraint {
String message() default "Password is invalid";
Class<?>[] groups() default { };
Class<? extends Payload>[] payload() default { };
}