I am working in Validation, Data Binding, and Type Conversion in Spring 3.2.8...
I have this controller
@Controller
public class SaveAccountController {
@Autowired
private UserService userService;
@RequestMapping(value = "/accounts/saveaccount.do", method = RequestMethod.POST)
private String saveAccount ( @Valid @ModelAttribute("dataAccountCommand") final DataAccountCommand dataAccountCommand,
BindingResult result) {
return "registerAccountView";
}
}
this java object:
public class DataAccountCommand {
@Valid
User userBean;
public User getUserBean() {
return userBean;
}
public void setUserBean(User userBean) {
this.userBean = userBean;
}
@Override
public String toString() {
return "DataAccountCommand [userBean=" + userBean + "]";
}
}
and this other one:
@SuppressWarnings("serial")
@Entity
@Table(name = "T_USER", uniqueConstraints = { @UniqueConstraint(columnNames = "LOGIN"), @UniqueConstraint(columnNames = "EMAIL") })
@SequenceGenerator(name = "seqUSER", sequenceName = "SEQ_USER")
public class User implements java.io.Serializable {
@Id
@Column(name = "ID", unique = true, nullable = false, precision = 38, scale = 0)
@GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "seqUSER")
private Long id;
@Column(name = "ROLE", nullable = false, precision = 38, scale = 0)
@Enumerated(EnumType.ORDINAL)
protected UserRole userRole;
@ManyToOne(fetch = FetchType.EAGER)
@JoinColumn(name = "COMPANY")
private Company company;
@Column(name = "POSITION")
@NotNull
@Size(min=10)
private String position;
....
}
and this in the applicationContext.xml
<bean id="validator" class="org.springframework.validation.beanvalidation.LocalValidatorFactoryBean"/>
and here my servlet:
<!-- Maps incoming URLs to classnames -->
<bean name="controllerHandler" class="springext.web.servlet.mvc.support.ControllerClassNameHandlerMapping">
<property name="basePackage" value="fr.telecom.controller" />
<property name="interceptors">
<list>
<!-- Checks a specific request parameter if the locale is changed. -->
<ref bean="localeChangeInterceptor"/>
<ref bean="sessionInterceptor"/>
</list>
</property>
</bean>
<!-- Action URL mappings to controllers. -->
<bean id="handlerMapping"
class="org.springframework.web.servlet.handler.BeanNameUrlHandlerMapping">
<property name="interceptors">
<list>
<!-- Checks a specific request parameter if the locale is changed. -->
<ref bean="localeChangeInterceptor"/>
<ref bean="sessionInterceptor"/>
</list>
</property>
</bean>
in the controller position is empty, but result.hasErrors() is false !!!!!
I've tried also using another approach:
@Controller
public class SaveAccountController {
@Autowired
private UserService userService;
@Autowired
LocalValidatorFactoryBean validator;
@RequestMapping(value = "/accounts/saveaccount.do", method = RequestMethod.POST)
private String saveAccount ( @Valid @ModelAttribute("dataAccountCommand") final DataAccountCommand dataAccountCommand,
Errors errors) {
validator.validate(dataAccountCommand, errors);
}
}
But then I got another strange error:
java.lang.AbstractMethodError: org.hibernate.ejb.HibernatePersistence.getProviderUtil()Ljavax/persistence/spi/ProviderUtil;
I didn't see where you validate your @ModelAttribute("dataAccountCommand"). Add your validation logic somewhere.
Please see their reference documentation. You have two options:
The first one is with custom validator:
@RequestMapping(value="/owners/{ownerId}/pets/{petId}/edit", method = RequestMethod.POST)
public String processSubmit(@ModelAttribute("pet") Pet pet, BindingResult result) {
new PetValidator().validate(pet, result);
if (result.hasErrors()) {
return "petForm";
}
// ...
}
the second one is with @Valid Annotation:
@RequestMapping(value="/owners/{ownerId}/pets/{petId}/edit", method = RequestMethod.POST)
public String processSubmit(@Valid @ModelAttribute("pet") Pet pet, BindingResult result) {
if (result.hasErrors()) {
return "petForm";
}
// ...
}
Leave only modelAttribute and BindingResult as input arguments for your method. EDIT:
@RequestMapping(value = "/accounts/saveaccount.do", method = RequestMethod.POST)
private String saveAccount ( @Valid @ModelAttribute("dataAccountCommand") final DataAccountCommand dataAccountCommand,
BindingResult result) {
return "registerAccountView";
}
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