Nice Struts～鸡肋问题解决之道

@Component("user")
public class UserAction {
	static final Logger LOG = Logger.getLogger(UserAction.class);
	
	@In
	private VRaptorServletRequest request;
	
	@Out(scope = ScopeType.SESSION)
	private User currentUser;

	private UserService userService;

	public UserAction(UserService userService) {
		this.userService = userService;
	}

	@Validate(params = { "user" })
	public void save(User user) {
		userService.saveUser(user);
		currentUser = user;
	}
	
	@Validate(params = { "user" })
	public void update(User user) throws TestException{
		User user_indb = userService.getUser(user.getUserId());
		user_indb.setUsername(user.getUsername());
		user_indb.setPassword(user.getPassword());
		user_indb.setEmail(user.getEmail());
		user_indb.setPhone(user.getPhone());
		userService.updateUser(user_indb);
		User currentUser = (User)(request.getSession().getAttribute("currentUser"));
		currentUser = null;
	}

	public void validateSave(ValidationErrors errors, User user) {
		if (!(user.getPassword().equals(user.getRepassword())))
			errors.add(new Message("password-validate",
					"re password is invalid"));
		if (userService.containsUserWithLogin(user.getUsername())) {
			errors.add(new Message("username_exists-validate", "username_already_exists"));
		}
		if (userService.contaisUserWithEmail(user.getEmail())) {
			errors.add(new Message("email_exists-validate", "Email_already_exists"));
		}

	}
	public void validateUpdate(ValidationErrors errors, User user) {
		User user_indb = userService.getUser(user.getUserId());
		if(!(user.getUsername().equals(user_indb.getUsername()))){
			if (userService.containsUserWithLogin(user.getUsername())) {
				errors.add(new Message("username_exists-validate", "username_already_exists"));
			}
		}
		if(!(user.getEmail().equals(user_indb.getEmail()))){
			if (userService.contaisUserWithEmail(user.getEmail())) {
				errors.add(new Message("email_exists-validate", "Email_already_exists"));
			}
		}
		if (!(user.getPassword().equals(user.getRepassword())))
			errors.add(new Message("password-validate",
					"re password is invalid"));
	}

}

public void validateSave(ValidationErrors errors, User user) {
}

@Email
private String email;

@In
private VRaptorServletRequest request;

@Component
@InterceptedBy( MyMultipartRequestInterceptor.class )
public class UploadAction {
	private UploadService uploadService;
	
	@In
	private VRaptorServletRequest request;
	
	@In(required=false)
    private UploadedFileInformation fileInfo;
	@Out
	@Parameter
	private Page<UploadFile> page = new Page<UploadFile>();

}