将 @InitBinder 初始化外部化到 WebBindingInitializer 中

发布于 2024-11-29 01:35:16 字数 1067 浏览 1 评论 0 原文

数据绑定初始化有两种主要方法，但老式方法有一个缺点，我无法弄清楚。这种注释方式很棒：

@InitBinder("order")
public void initBinder(WebDataBinder binder) {
    // Problem is that I want to set allowed and restricted fields - can be done here
    binder.setAllowedFields(allowedFields.split(","));
}

但我无法使用 ConfigurableWebBindingInitializer 来完成。首先，绑定器实例是在 AnnotationMethodHandlerAdapter 中创建的，并且初始化程序是在 HandlerMethodInvoker 中的某处传递绑定器实例的，所以我无法设置它......我不能做这样的事情：

<bean id="codesResolver" class="org.springframework.validation.DefaultMessageCodesResolver" />
<bean id="binder" class="org.springframework.web.portlet.bind.PortletRequestDataBinder" scope="prototype">
    <property name="allowedFields" value="${allowedFields}" />
    <aop:scoped-proxy />
</bean>
<bean id="webBindingInitializer" class="org.springframework.web.bind.support.ConfigurableWebBindingInitializer">
    <property name="messageCodesResolver" ref="codesResolver" />
</bean>

因为绑定器实例是在 handlerAdapter 中传递给它的。那么我该如何设置活页夹呢？

原文

There are two major means of data binding initialization, but there is a drawback in the oldschool one, that I can't figure out. This annotation way is great :

@InitBinder("order")
public void initBinder(WebDataBinder binder) {
    // Problem is that I want to set allowed and restricted fields - can be done here
    binder.setAllowedFields(allowedFields.split(","));
}

but I can't be done with ConfigurableWebBindingInitializer. First off, the binder instance is created in AnnotationMethodHandlerAdapter and initializer is passed the binder instance somewhere in HandlerMethodInvoker so I can't set it up... I can't do something like this :

<bean id="codesResolver" class="org.springframework.validation.DefaultMessageCodesResolver" />
<bean id="binder" class="org.springframework.web.portlet.bind.PortletRequestDataBinder" scope="prototype">
    <property name="allowedFields" value="${allowedFields}" />
    <aop:scoped-proxy />
</bean>
<bean id="webBindingInitializer" class="org.springframework.web.bind.support.ConfigurableWebBindingInitializer">
    <property name="messageCodesResolver" ref="codesResolver" />
</bean>

Because binder instance is passed into it in handlerAdapter. How can I set up the binder then ?

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