使用Lombok和构造函数注入时，Spring注入的bean为null

zyfwsgd6  于 2024-01-05  发布在  Spring
关注(0)|答案(1)|浏览(181)

我正在将一个用 Spring 实现的 maven 项目迁移到 Sping Boot 1.5.20.RELEASE。
我有一个适配器类，它将被所有用@RestControllers注解的类扩展，以保证与前端的向后兼容性。

  1. public class RestControllerAdapter {
  3.     private MessageTemplate messageTemplate;
  5.     private MessageTemplate getMessageTemplate() {
  7.         if (messageTemplate == null) {
  8.             messageTemplate = ApplicationContextUtils.getBean(MessageTemplate.class);
  9.         }
  11.         return messageTemplate;
  12.     }
  14.     protected final String message(@NonNull String code) {
  15.         return getMessageTemplate().getMessage(code);
  16.     }
  18.     protected final String message(@NonNull String code, Object... args) {
  19.         return getMessageTemplate().getMessage(code, args);
  20.     }
  22.     protected final ModelMap success() {
  23.         val map = new ModelMap();
  24.         map.put("success", true);
  25.         map.put("message", getMessageTemplate().getMessage("message.success.default"));
  26.         return map;
  27.     }
  29.     protected final ModelMap error(@NonNull String message) {
  30.         val map = new ModelMap(2);
  31.         map.put("success", false);
  32.         map.put("error", message);
  33.         return map;
  34.     }
  36.     protected final ModelMap retry(@NonNull Exception ex) {
  37.         val map = new ModelMap(3);
  38.         map.put("success", false);
  39.         map.put("error", ex.getMessage());
  40.         map.put("confirmar", true);
  41.         return map;
  42.     }
  44.     protected final ModelMap empty() {
  45.         return new ModelMap();
  46.     }
  48.     @ExceptionHandler(JpaSystemException.class)
  49.     public ModelMap handleJpaSystemException(JpaSystemException ex) {
  50.         log.error(ex.getMessage(), ex);
  51.         return createError(ex.getMostSpecificCause());
  52.     }
  54.     @ExceptionHandler(DataIntegrityViolationException.class)
  55.     public ModelMap handleDataIntegrityViolationException(DataIntegrityViolationException ex) {
  56.         log.error(ex.getMessage(), ex);
  57.         return createError(ex.getMostSpecificCause());
  58.     }
  60.     private ModelMap createError(Throwable ex) {
  61.         val modelMap = new ModelMap();
  62.         modelMap.put("error", translateErrorMessage(ex));
  63.         modelMap.put("success", false);
  64.         return modelMap;
  65.     }
  67.     protected String translateErrorMessage(@NonNull Throwable ex) {
  68.         String message = ex.getLocalizedMessage().isEmpty() ? ex.getMessage() : ex.getLocalizedMessage();
  70.         if (message.contains("12519")) {
  71.             message = getMessageTemplate().getMessage("db.connection.error");
  72.         } else if (message.contains("SYS_C0015328")) {
  73.             message = getMessageTemplate().getMessage("plan.tasks.successors.sequence.error");
  74.         } else if (message.contains("SYS_C0012415")) {
  75.             message = getMessageTemplate().getMessage("positions.sequence.error");
  76.         } else if (message.contains("SYS_C006343")) {
  77.             message = getMessageTemplate().getMessage("documents.sequence.error");
  78.         } else if (message.contains("UNIQUE_EMAIL")) {
  79.             message = getMessageTemplate().getMessage("user.email.unique");
  80.         } else if (message.contains("FK_PLTASK_TASK")) {
  81.             message = getMessageTemplate().getMessage("task.delete.error");
  82.         }
  84.         return message;
  85.     }
  86. }

字符串
我有一个用于用户管理的rest控制器类

  1. @RestController
  2.  @RequestMapping(value = "/usuario")
  3.  @RequiredArgsConstructor
  4.  public class UserRestController extends RestControllerAdapter {
  5.     
  6.    private final UserService usersService;
  7.    private final UsersRepository usersRepository;
  8.    private final UserBackupRepository userBackupRepository;
  9.    private final AreaRepository areaRepository;
  10.    private final PositionRepository positionRepository;
  11.    private final UserMapper userMapper; 
  12.          
  13.    @PreAuthorize(value = SecurityUtils.ADMIN_EDIT_AUTHORITY)
  14.    @PutMapping("/{userId}")
  15.    public ModelMap update(@Valid @RequestBody UserCommand userCommand, 
  16.                          @PathVariable int userId) {
  17.        try {
  18.            usersService.update(userId, userCommand);
  19.            return success();
  20.        } catch (DuplicateHolderException ex) {
  21.            return retry(ex);
  22.        }
  23.    }
  24.  
  25.       @PreAuthorize(value = SecurityUtils.ADMIN_EDIT_AUTHORITY)
  26.       @PostMapping("/activarUsuario")
  27.       public ModelMap enable(@RequestParam("usuario_id") Integer id, 
  28.                                      @AuthenticationPrincipal Users user) {
  29.  
  30.            if (user.getRol().getId() == 1 || user.getRol().getId() == 3) {
  31.              usersService.enable(id);
  32.              return success();
  33.            }
  34.  
  35.            return empty();
  36.      }
  37.  
  38.    @Override
  39.    protected String translateErrorMessage(@NonNull Throwable ex) {
  40.      String message = ex.getMessage();
  41.  
  42.      if (message.contains("correo_unico")) {
  43.          message = "Ya este correo está asigado a un usuario.";
  44.      } else if (message.contains("SYS_C0012422") || 
  45.          message.contains("SYS_C0015349")) {
  46.          message = "La secuencia de usuarios no está correctamente 
  47.                                                                configurada.";
  48.      } else if (message.contains("UNIQUE_BACKUP")) {
  49.          message = "Un usuario no puede ser backup mas de una ocasión.";
  50.      } else if (message.contains("UNIQUE_EMAIL")) {
  51.          message = "No se puede insertar el usuario porque este correo ya 
  52.            está en uso.";
  53.      } else if (message.contains("FK_PLAN_USER_ACTIVADO")) {
  54.          message = "No se puede insertar el usuario porque existe un plan que 
  55.          ha sido activado por dicho usuario.";
  56.      } else if (message.contains("FK_TASK_EXECUTED_BY")) {
  57.          message = "No se puede insertar el usuario porque existen tareas 
  58.          ejecutadas por dicho usuario.";
  59.      }
  60.  
  61.      return super.translateErrorMessage(ex);
  62.   }
  63.  
  64.  }

型
当调用UserRestController::update时，由于注入到UserServiceImpl中的所有依赖项都为null，因此抛出NullPointerException，如下图所示。


的数据
然而，当UserRestController::enable被调用时，一切都正常。两者都依赖于UserServiceImpl的方法调用。

  1. @Service
  2.     @RequiredArgsConstructor
  3.     @Transactional(rollbackFor = Exception.class)
  4.     class UserServiceImpl implements UserService {
  5.     
  6.         private static final int POSITION_USERS_LIMIT = 3;
  7.         private static final int BACKUPS_LIMIT = 2;
  8.         private static final String POSITION_LIMIT_ERROR = "user.position.limit";
  9.         private static final String BACKUP_LIMIT_ERROR = "user.backup.limit";
  10.     
  11.         private final UsersRepository usersRepository;
  12.         private final UserBackupRepository userBackupRepository;
  13.         private final RolRepository rolRepository;
  14.         private final PositionRepository positionRepository;
  15.         private final PlanRepository planRepository;
  16.         private final PlTaskRepository plTaskRepository;
  17.         private final UserNotificationRepository userNotificationRepository;
  18.         private final NotificacionBackupRepository notificacionBackupRepository;
  19.         private final UserTokenRepository userTokenRepository;
  20.         private final UserMapper userMapper;
  21.         private final PasswordTemplate passwordTemplate;
  22.         private final MessageTemplate messageTemplate;
  23.     
  24.            @Override
  25.         public final Users update(int id, @NonNull UserCommand userCommand) {
  26.             val user = usersRepository.findById(id)
  27.                     .orElseThrow(() -> new IllegalArgumentException("Usuario a editar requerido"));
  28.             val role = loadRoleFrom(userCommand);
  29.             val newPosition = loadPositionFrom(userCommand);
  30.     
  31.             if (userCommand.isCheckConstraints()) {
  32.                 assertUserUpdate(userCommand, user, newPosition);
  33.             }
  34.     
  35.             if (userCommand.isHolder()) {
  36.     
  37.                 if (!user.isTitular() && usersRepository.existsByPositionAndTitularTrue(user.getPosition())) {
  38.                     userBackupRepository.deleteAllByUsuarioPositionAndUsuarioTitularTrue(user.getPosition());
  39.                     usersRepository.updateTitularFalse(user.getPosition());
  40.                 } else if (!user.hasPosition(newPosition) && usersRepository.existsByPositionAndTitularTrue(newPosition)) {
  41.                     userBackupRepository.deleteAllByUsuarioPositionAndUsuarioTitularTrue(newPosition);
  42.                     usersRepository.updateTitularFalse(newPosition);
  43.                 } else if (user.isTitular()) {
  44.                     userBackupRepository.deleteAllByUsuarioPositionAndUsuarioTitularTrue(user.getPosition());
  45.                 }
  46.             } else {
  47.                 userBackupRepository.deleteAllByUsuarioPositionAndUsuarioTitularTrue(user.getPosition());
  48.             }
  49.     
  50.             user.setEmail(userCommand.getEmail());
  51.             user.setUsuario(userCommand.getEmail());
  52.             user.setName(userCommand.getName());
  53.             user.setLastname(userCommand.getLastname());
  54.             user.setActive(userCommand.isEnabled());
  55.             user.setTitular(userCommand.isHolder());
  56.             user.setPosition(newPosition);
  57.             user.setRol(role);
  58.     
  59.             if (!StringUtils.isEmpty(userCommand.getPassword())) {
  60.                 user.setKeypass(passwordTemplate.encode(user.getPassword()));
  61.             }
  62.     
  63.             usersRepository.save(user);
  64.             addBackups(userCommand, user);
  65.             return user;
  66.         }
  67.     
  68.          @Override
  69.         public Users enable(@NonNull Integer id) {
  70.             val user = usersRepository.findById(id).orElseThrow(NoSuchElementException::new);
  71.             user.setActive(!user.isActive());
  72.             usersRepository.save(user);
  73.             return user;
  74.         }    
  75.     }

型
这个虫子快把我杀了，这是一种奇怪的行为.

spring

1条答案

按热度按时间
knpiaxh1

knpiaxh11#

最后我解决了这个问题。
它与UserServiceImpl::update方法中的final关键字有关
它不允许注入过程正常工作，而且它完全有意义，因为用@Transactional注解的类不能是final
我已经删除了它，现在一切正常。示例代码是here

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