如何以編程方式配置bean驗證？

Question

代碼在這裏我想用Bean驗證：

@Inject 
private ValidatorFactory validatorFactory; 
.... 

public Response create(@Context HttpServletRequest request) { 
     ... 
     Set<ConstraintViolation<UserDTO>> validate = validatorFactory.getValidator().validate(userDTO); 
     validate.forEach(error-> System.err.println(error.getMessage())); 
     if(validate.size() > 0){ 
      throw new ValidationException("userDTO is not valid!"); 
     } 
     ... 
} 


public Response update(@Context HttpServletRequest request) { 
     Set<ConstraintViolation<UserDTO>> validate = validatorFactory.getValidator().validate(userDTO); 
     validate.forEach(error-> System.err.println(error.getMessage())); 
     if(validate.size() > 0){ 
      throw new ValidationException("userDTO is not valid!"); 
     } 
     ... 
} 

UserDTO：

public class UserDTO { 
    private Integer id; 
    private String userName; 
    @NotNull(message = "is missing") 
    private String locked; 
    @Email(message = "email is not valid") 
    private String email; 
    @NotNull(message = "countryCode is missing") 
    private String countryCode; 
    ...getters-setters more variables... 
} 

所以我要在這裏我想創建一個用戶一個POST HTTP方法...豆驗證工作，如果丟失國家代碼或鎖定好或如果電子郵件無效正常...但是，當我想只是更新例如電子郵件驗證也運行在整個dto類...所以問題是我可以和我如何配置不運行對每一個變量每次？

Answer 1

您應該使用Validator::validateProperty來檢查指定的屬性。如果有多個屬性，您也可以對它們進行分組並通過Validator::validate（教程請參見here）進行檢查。