使用 JSF + PrettyFaces 处理导航和 bean 操作时,Java Web 应用程序出现问题。
使用版本:
JSF - 2.1
PrettyFaces - 3.3.3
使用来自链接的 PrettyFaces Filter 处理导航时发生错误:
<div class="product_img">
<pretty:link mappingId="viewProduct">
<img src="#{request.contextPath}/image?id=#{product.mainImage.fileReference.id}" />
<f:param value="#{productMB.filters.productCategoryName}" />
<f:param value="#{product.name}" />
</pretty:link>
</div>
pretty-config.xml 映射是:
<url-mapping id="viewProduct">
<pattern value="/shop/product/#{ productCategoryName : productMB.filters.productCategoryName }/#{ productName : productMB.filters.productName }/" />
<view-id value="/pages/productDetails.faces" />
<action>#{productMB.openProductDetails}</action>
</url-mapping>
豆行动:
public String openProductDetails() {
if (filters.getProductCategoryName() != null && !filters.getProductName().equals("")) {
loadProductDetailsByName(filters.getProductCategoryName());
}
return "/pages/productDetails.faces";
}
用户登陆产品详细信息页面,在那里他可以选择颜色、尺寸等产品功能...
<ui:fragment rendered="#{productMB.productVO.featureColorAvailable}">
<span class="productFeatureLabel">#{msg.color}</span>
<h:selectOneMenu id="colorSelect"
value="#{productMB.productVO.colorSelected}"
valueChangeListener="#{productMB.colorSelectedValueChanged}">
<f:selectItem itemLabel="#{msg['select']}" noSelectionOption="true" />
<f:selectItems value="#{productMB.productFeatureAvailableApplMap['color']}" var="colorItem" itemValue="#{colorItem}"
itemLabel="#{msg[colorItem.name]}" />
<f:ajax event="valueChange"
listener="#{productMB.colorSelectedValueChanged}"
render="@this productDetailImage productSubImage productSubImage2 productSubImage3 sizeSelect"></f:ajax>
</h:selectOneMenu>
</ui:fragment>
//... Bean 动作方法
public void colorSelectedValueChanged(ValueChangeEvent event) {
if (null != event.getNewValue()) {
ProductFeatureAppl prodFeatureAppl = (ProductFeatureAppl) event.getNewValue();
filterProductFeatureSelectItem(AppConstants.SIZE, prodFeatureAppl.getProductFeature().getName() );
} else {
filterProductFeatureSelectItem(AppConstants.SIZE, null );
}
}
public void colorSelectedValueChanged(AjaxBehaviorEvent event) throws javax.faces.event.AbortProcessingException {
try {
if (null != productVO.getColorSelected()) {
ProductFeatureAppl prodFeatureAppl = productVO.getColorSelected();
filterProductFeatureSelectItem(AppConstants.SIZE, prodFeatureAppl.getProductFeature().getName() );
String prodFeatName = prodFeatureAppl.getProductFeature().getName();
// switch selected pics.
productVO.setCurrentDetailImageName(productVO.getProduct().getProductImageByTypeAndFeatureName(
NameConstants.DETAIL, prodFeatName).getFileReference().getId());
productVO.setCurrentBigImageName(productVO.getProduct().getProductImageByTypeAndFeatureName(
NameConstants.BIG, prodFeatName).getFileReference().getId());
} else {
filterProductFeatureSelectItem(AppConstants.SIZE, null );
filterProductFeatureSelectItem(AppConstants.COLOR, null );
// reset to default
productVO.setCurrentDetailImageName(productVO.getProduct().getProductImageByType(ProductImageType.DETAIL1.toString()).getFileReference().getId());
productVO.setCurrentBigImageName(productVO.getProduct().getProductImageByType(ProductImageType.BIG1.toString()).getFileReference().getId());
}
} catch (Exception ex) {
addErrorMessage(getMessage("error"));
if (screenComponent.isDisplayException()) {
addErrorMessage(ex.getMessage());
}
}
}
在第一次导航到产品详细信息页面后,无论何时从 selectOneMenu id="colorSelect" 中选择一个值,都不会调用 valueChangeListener 和 ajax 侦听器。除此之外,还调用了 productMB.openProductDetails 操作。
ajax 调用已完成,我在日志中没有看到任何错误,但没有调用任何侦听器方法。有人知道为什么会跳过这些 JSF ajax 侦听器吗?
提前致谢。