user6778654 user6778654 - 2 months ago 11
Java Question

JSR-303 @Valid annotation (nested object) not working

[spring 3.0.5][Jboss 5.1]

My main classes is

public class UserAddressesForm {

@NotEmpty
private String firstName;

@NotEmpty
private String lastName;

private List<AddressForm> addresses;

...
setters and getters

public class AddressForm {

@NotEmpty
private String customName;
@NotEmpty
private String city;
@NotEmpty
private String streetAn;
@NotEmpty
private String streetHn;
@NotEmpty
private String addressCountry;
@NotEmpty
private String postCode;
...
setters and getters


A Controller

@RequestMapping(value = "/up", method = RequestMethod.POST)
public String completeForm(@Valid @ModelAttribute("userAddressesForm") UserAddressesForm userAddressesForm,
BindingResult result, HttpServletRequest req)
...


A JSP page

<form:form commandName="userAddressesForm" action="registered">
<table>

<tr>
<td class="formLabels"><form:label path="firstName">
<spring:message code="label.name" />
</form:label></td>
<td><form:input path="firstName" /></td>
<td><form:errors path="firstName" cssClass="error" /></td>
</tr>
<tr>
<td class="formLabels"><form:label path="lastName">
<spring:message code="label.surname" />
</form:label></td>
<td><form:input path="lastName" /></td>
<td><form:errors path="lastName" cssClass="error" /></td>
</tr>
</table>

<c:forEach items="${userAddressesForm.addresses}" varStatus="gridRow">
<div id="main_address" class="address_data_form">
<fieldset>
<legend><spring:message code="label.stepThreeMainAddressInfo" /></legend>
<a href="#" class="deleteItem"></a>
<table>
<tr>
<td class="formLabels">
<spring:message code="label.address.custom.name" />
</td>
<td>
<spring:bind path="addresses[${gridRow.index}].customName">
<input type="input" name="<c:out value="${status.expression}"/>"
id="<c:out value="${status.expression}"/>"
value="<c:out value="${status.value}"/>" />
<form:errors path="${status.expression}"/>
</spring:bind>
</td>
</tr>
<tr>
<td class="formLabels">
<spring:message code="label.streetAnStreetHn" />
</td>
<td>
<spring:bind path="addresses[${gridRow.index}].streetAn">
<input type="input" name="<c:out value="${status.expression}"/>"
id="<c:out value="${status.expression}"/>"
value="<c:out value="${status.value}"/>" />
</spring:bind>
<spring:bind path="addresses[${gridRow.index}].streetHn">
<input type="input" name="<c:out value="${status.expression}"/>"
id="<c:out value="${status.expression}"/>"
value="<c:out value="${status.value}"/>" >
<form:errors path="addresses[${gridRow.index}].streetHn"/>
</spring:bind>

</td>
</tr>
<tr>
<td class="formLabels">
<spring:message code="label.postCode" />
</td>
<td>
<spring:bind path="addresses[${gridRow.index}].postCode">
<input type="input" name="<c:out value="${status.expression}"/>"
id="<c:out value="${status.expression}"/>"
value="<c:out value="${status.value}"/>" />
</spring:bind>
</td>
</tr>
<tr>
<td class="formLabels">
<spring:message code="label.city" />
</td>
<td>
<spring:bind path="addresses[${gridRow.index}].city">
<input type="input" name="<c:out value="${status.expression}"/>"
id="<c:out value="${status.expression}"/>"
value="<c:out value="${status.value}"/>" />
<form:errors path="addresses[${gridRow.index}].city" cssClass="error" />
</spring:bind>
</td>
</tr>
</table>
</fieldset>
</div>
</c:forEach>


Why object fields are not validated AddressForm?

Please help.

Answer

You need to decorate addresses member of UserAddressesForm with @Valid annotation. See section 3.1.3 and 3.5.1 of JSR 303: Bean Validation. As I explained in my answer to the question Is there a standard way to enable JSR 303 Bean Validation using annotated method, this is the real use of @Valid annotation as per JSR 303.

Edit Example code: Hibernate Validator- Object Graph. (The list of passengers in Car)