Question

我的主要课程是

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

控制器

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

JSP页面

<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>

为什么对象字段未经过验证的AddressForm？

请帮忙。

Answer 1

您需要使用addresses注释装饰UserAddressesForm @Valid成员。见JSR 303: Bean Validation的3.1.3和3.5.1节。正如我在回答问题Is there a standard way to enable JSR 303 Bean Validation using annotated method时所解释的那样，这是根据JSR 303真正使用@Valid注释。

修改示例代码：Hibernate Validator- Object Graph。（车内乘客名单）

Answer 2

添加到@Ritesh回答，@Valid约束将指示Bean Validator深入研究其应用属性的类型并验证在那里找到的所有约束。回答问题的代码，验证者在@Valid属性上看到addresses约束时，将探索AddressForm类并验证内部发现的所有JSR 303约束，如下所示：

public class UserAddressesForm {

    @NotEmpty
    private String firstName;

    @NotEmpty
    private String lastName;

    @Valid
    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

Answer 3

在UserAddressesForm类中，添加以下行

@Valid
private List<AddressForm> addresses;

Answer 4

有效的解决方案。

public class UserAddressesForm {

    @NotEmpty(message="firstName is required")
    private String firstName;

    @NotEmpty(message="lastNameis required")
    private String lastName;

    @NotNull(message="addresses attributes are required")
    @Valid
    private List<AddressForm> addresses;

...
setters and getters 

public class AddressForm {

    @NotEmpty(message="customNameis required")
    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

JSR-303 @Valid注释不适用于子对象列表

4 个答案: