是否有可能讓我的自定義驗證註釋在持續時被忽略？

Question

我使用Spring 4和休眠5

我有用戶類與密碼字段與自定義驗證。

我需要驗證它，而表單綁定爲8個字符長，包括小寫字母，大寫字母和數字。

當用戶輸入密碼時它是有效的，但是當我編碼時它是無效的。

那麼有沒有辦法讓我的自定義驗證註釋被忽略持續？

我知道我可以爲未加密的密碼創建不同的字段，或者使數據傳輸對象驗證它，然後將其數據分發給用戶。 但我對註釋參數化的可能性感興趣。

@Entity 
@Table(name = "user") 
public class User { 
//other fields 

@NotNull 
@NotEmpty 
@ValidPassword 
@Column(name = "password", nullable = false, length = 60) 
private String password; 
//getters and setters 
} 

我的驗證

@Target({ TYPE, FIELD, ANNOTATION_TYPE }) 
@Retention(RUNTIME) 
@Constraint(validatedBy = PasswordValidator.class) 
@Documented 
public @interface ValidPassword { 
String message() default "Password is too short! Must be 8 digits and include lowercase, uppercase letters and numbers."; 

Class<?>[] groups() default {}; 

Class<? extends Payload>[] payload() default {}; 
} 

和

public class PasswordValidator implements ConstraintValidator<ValidPassword, String> { 

private Pattern pattern; 
private Matcher matcher; 
private static final String PATTERN = "((?=.*\\d)(?=.*[a-z])(?=.*[A-Z]).{8,})"; 

@Override 
public void initialize(ValidPassword constraintAnnotation) { 
} 

@Override 
public boolean isValid(String password, ConstraintValidatorContext context) { 
    return (validate(password)); 
} 

private boolean validate(String password) { 
    pattern = Pattern.compile(PATTERN); 
    matcher = pattern.matcher(password); 
    return matcher.matches(); 
} 
} 

控制方法

@RequestMapping(value = "/registeruser", method = RequestMethod.POST) 
public String registerUser(@ModelAttribute("user") @Valid User user, BindingResult result, Model model) { 
    if (result.hasErrors()) { 
     model.addAttribute("errorSummary", result.getFieldErrors().stream() 
       .map(e -> e.getField() + " error - " + e.getDefaultMessage() + " ").collect(Collectors.toList())); 
     model.addAttribute("user", user); 

    } else { 
     User registered = null; 
     registered = createUserAccount(user, result); 

     if (registered == null) { 
      model.addAttribute("errorSummary", "User with this email already registered!"); 
      model.addAttribute("user", user); 
      return "registration"; 
     } 
     model.addAttribute("flashMessage", "User registered successfully!"); 
    } 

    return "registration"; 
} 

UserService實現方法（在這裏我編碼我的密碼）

@Transactional 
@Override 
public User registerNewUserAccount(User user) throws EmailExistsException { 

    if (emailExist(user.getEmail())) { 
     throw new EmailExistsException("There is an account with that email address:" + user.getEmail()); 
    } 

    if (user.getPassword() == null) { 
     user.setPassword(new BigInteger(130, new SecureRandom()).toString(32)); 
     System.out.println("+++++++++++++++" + user.getPassword()); 
    } 
    user.setPassword(passwordEncoder.encode(user.getPassword())); 
    user.setUserRole(new HashSet<UserRole>(1)); 
    user.getUserRole().add(new UserRole(user, Constants.RoleType.USER.name())); 
    save(user); 
    return user; 
} 

Answer 1

默認情況下，所有約束都會進行驗證。或者你也可以指定Grouping Constraints

您可以通過創建一個接口創建組：

interface FormValidationGroup{} 

和註釋password場這樣的：

@ValidPassword(groups = FormValidationGroup.class) 
private String password; 

文檔爲Custom Constraints annotations，其中groups參數被提及。

除非您指定驗證組，否則Hibernate驗證程序現在應忽略password字段。爲了指定一個用於驗證Spring MVC處理程序方法參數的組，請使用Validated註釋而不是Valid。例如：

String registerUser(@ModelAttribute @Validated(FormValidationGroup.class) User user, 
     BindingResult result, Model model) { 
    if (result.hasErrors()) {