Java 如何在SpringWebFlow中将多个模型绑定到单个视图？

情况：我正在开发一个SpringMVCwebapp，并使用SpringWebFlow和tiles框架。我在DB

customer

和

CustomerAddress

中有两个表，我有两个模型类，分别命名为

customerModel

和

CustomerAddressModel

现在，在my flow.xml中，我有以下

视图状态

：

<var name = "cust" class = "com.model.CustomerModel"/> 

<view-state id = "customerViewState" view = "customer" model = "cust">

        <transition on="next" to="customerData"/>

    </view-state>

问题：现在

customer.jsp

中指定的表单有一些输入字段，其中包含

customerAddressModel

的属性值。因此，我想将

customerModel

以及

customerAddressModel

绑定到相同的视图状态

customerViewState

。我该怎么做呢？我查了spring DOC，但什么都找不到，请帮忙

---

注意：我无法修改我的sql表

您可以创建复合模型DTO

public class CompositeModelDto {

    private CustomerModel suctomer;

    private CustomerAddressModel address;

    //setters ang getters ...

}

并将其用作视图状态模型

<var name = "cust" class = "com.model.CustomerModel"/>
<var name = "address" class = "com.model.CustomerAddressModel"/>
<var name = "customerDto" class = "com.model.CompositeModelDto"/>

<view-state id = "customerViewState" view = "customer" model = "customerDto">
    <on-entry>
        <set name="customerDto.customer" value="cust"/>
        <set name="customerDto.address" value="address"/>
    </on-entry>

    <transition on="next" to="customerData"/>

</view-state>

---

更新
对于视图，我建议使用Spring的表单标记库。定义标记库

<%@ taglib prefix="form" uri="http://www.springframework.org/tags/form"%>

并将jsp中的表单替换为

<form:form method="POST" action="${flowExecutionUrl}&_eventId=next" modelAttribute="customerDto">
   <table>
    <tr>
        <td><form:label path="customer.name">Name</form:label></td>
        <td><form:input path="customer.name" /></td>
    </tr>
    <tr>
        <td><form:label path="customer.email">Email</form:label></td>
        <td><form:input path="customer.email" /></td>
    </tr>
    <tr>
        <td><form:label path="address.addressLine1">Address Line 1</form:label></td>
        <td><form:input path="address.addressLine1" /></td>
    </tr>
    <tr>
        <td colspan="2">
            <input type="submit" value="Submit"/>
        </td>
    </tr>
   </table>
</form:form>

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地址行1

set语句在做什么，为什么需要它们？@varunsinghal

set

statement将

value

表达式结果设置为

name

中定义的属性<代码>表示

customerDto.setCustomer（cust）

。这两个集合都需要将customer和address设置到DTO中，以便在jsp中引用它们。毫无疑问，我有一个business服务，它将customerModel作为输入参数，然后将该输入参数插入customer表中。我如何在这里做到这一点？我可以这样做：cusomerBuisness.createCustomer（customerDto.cust）？请帮忙@varunsinghal是的，您可以。我有点困惑如何在JSP中引用

customerModel

的

customerModel

变量，然后将此变量作为输入传递给

customerModel

业务服务，如果您能对此有所了解，这将非常有用

<form:form method="POST" action="${flowExecutionUrl}&_eventId=next" modelAttribute="customerDto">
   <table>
    <tr>
        <td><form:label path="customer.name">Name</form:label></td>
        <td><form:input path="customer.name" /></td>
    </tr>
    <tr>
        <td><form:label path="customer.email">Email</form:label></td>
        <td><form:input path="customer.email" /></td>
    </tr>
    <tr>
        <td><form:label path="address.addressLine1">Address Line 1</form:label></td>
        <td><form:input path="address.addressLine1" /></td>
    </tr>
    <tr>
        <td colspan="2">
            <input type="submit" value="Submit"/>
        </td>
    </tr>
   </table>
</form:form>