JSR-303 @有效注释不适用于子对象列表

95

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>

为什么对象字段未通过AddressForm验证？

请帮忙。

java  json  spring  spring-mvc  jsr 
— 用户名
source

Answers:

164

您需要用注解装饰的addresses成员。请参阅《JSR 303：Bean验证》的 3.1.3和3.5.1节。正如我在对问题“ 是否存在使用注释方法启用JSR 303 Bean验证的标准方法”中所解释的那样，这是根据JSR 303 的注释的真正用法。UserAddressesForm@Valid@Valid

编辑 示例代码：Hibernate Validator-Object Graph。（汽车乘客名单）

从Hibernate Validator 6参考文档中编辑：

在6之前的版本中，Hibernate Validator支持对容器元素子集的级联验证，并且它是在容器级别实现的（例如，您将用于@Valid private List<Person>启用的级联验证Person）。

仍然支持，但不建议这样做。请改用容器元素级别的@Valid注释，因为它更具表现力。

例：

public class Car {

        private List<@NotNull @Valid Person> passengers = new ArrayList<Person>();

        private Map<@Valid Part, List<@Valid Manufacturer>> partManufacturers = new HashMap<>();

       //...
   }

另请参阅Bean验证2.0 / Jakarta Bean验证中的新增功能。

— 里特什
source
分组呢？我希望仅在验证A组时才验证地址。@Valid忽略该组。
— Akshay'1
1
@Akshay @Valid注释在较低级别起作用。我认为@GroupSequence可用于指定验证顺序。
— Ritesh
我的详细问题stackoverflow.com/q/41457404/1534925。不要以为顺序对我来说有用。
— 阿克斯（Akshay）
27

添加到@Ritesh答案后，@Valid约束将指示Bean验证程序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。用代码回答您的问题，验证器在看到属性@Valid约束时addresses，将探索AddressForm该类并验证JSR 303在其中找到的所有约束，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
— Arpit Aggarwal
source
1
分组呢？我希望仅在验证A组时才验证地址。@Valid忽略了该组
— Akshay'1
我什至没有读过您的答案，只是看着setters and getters解决了我的问题。
— Shubham Khandare
8

在类UserAddressesForm中添加以下行

@Valid
private List<AddressForm> addresses;
— 塔潘银行家
source
4

工作解决方案。 

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
— 瓦卡斯·艾哈迈德（Waqas Ahmed）
source
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