保存后如何重置表单？ [英] How can I reset form after save?

问题描述

我正在PrimeFaces对话框中进行产品插入表单。我的bean的作用域是会话。我可以插入一个产品，但是当我尝试插入另一个产品时，表单中有以前的产品信息。我想重置表单。我试过 UIInput 但它不起作用。如何清除表单？

I am doing a product insert form in PrimeFaces dialog. My bean's scope is session. I can insert a product, but when I try to insert another product, the form has previous product's information. I want to reset form. I tried UIInput but it doesnt work. How can I clear the form?

推荐答案

只需在保存后创建新产品并确保您是ajax更新保存后的表格。

Just create a new product after saving it and make sure that you're ajax-updating the form after save.

Eg

<h:form>
    <h:inputText value="#{productController.product.name}" />
    <h:inputTextarea value="#{productController.product.description}" />
    <h:selectOneMenu value="#{productController.product.category}">
        <f:selectItems value="#{applicationData.categories}" />
    </h:selectOneMenu>
    <p:commandButton value="Save" action="#{productController.save}" update="@form" />
</h:form>

with

with

public void save() {
    productService.save(product);
    product = new Product();
}

顺便说一句，那种bean实际上不属于会话范围。把它放在视图范围内。

By the way, that kind of bean really doesn't belong in the session scope. Put it in the view scope.

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