Question

我正在尝试实现一个非常简单的RichFaces应用程序（遵循developer guide的示例，但遇到了一个我无法解决的错误。

我的代码似乎正在构建并正确部署到Tomcat（localhost），但是当索引页面打开时，我得到了异常：

javax.faces.view.facelets.TagException: /index.xhtml @13,19 <a4j:form> Tag Library supports namespace: http://richfaces.org/a4j, but no tag was defined for name: form

我试图加载的索引页面如下：

<?xml version='1.0' encoding='UTF-8' ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"
  xmlns:h="http://java.sun.com/jsf/html"
  xmlns:a4j="http://richfaces.org/a4j"
  xmlns:rich="http://richfaces.org/rich"
  xmlns:f="http://java.sun.com/jsf/core">
<h:head>
    <title>Facelet Title</title>
</h:head>
<h:body><f:view>
    <a4j:form>
        <rich:panel header="This is the title" style="width:400px;">
            <h:outputText value="Enter your name:"/>
            <h:inputText value="#{MyBean.message}">
                <f:validateLength minimum="1" maximum="20"/>
            </h:inputText>
        </rich:panel>
    </f:view></a4j:form>
</h:body>
</html>

据我所知，这与开发者指南中的示例相同。我正在Netbeans 6.8中开发，使用JSF 2.0的MyFaces实现，并添加了RichFaces和Apache Commons jar作为库，而异常的标签实际上是由Netbeans自动建议的！

来自Apache Commons，我补充说：
豆类，收集，消化器，伐木

来自RichFaces，我补充说： richfaces-api，richfaces-impl，richfaces-impl-jsf2，richfaces-ui

如果提供bean代码和/或web.xml会很有用，请说明一下，我只是想避免发布可能是一个简单错误的巨大帖子。

Answer 1

对于RichFaces 4.x，请使用“rich：popupPanel”。我是从RichShowCase得到的：

<a4j:status onstart="#{rich:component('statPane')}.show()"
    onstop="#{rich:component('statPane')}.hide()" />
<h:form id="form">
    <rich:dataTable value="#{carsBean.allInventoryItems}" var="car"
        iterationStatusVar="it" id="table" rows="15">
        <rich:column>
            <f:facet name="header">#</f:facet>
            #{it.index}
        </rich:column>
        <rich:column>
            <f:facet name="header">Vendor</f:facet>
            <h:outputText value="#{car.vendor}" />
        </rich:column>
        <rich:column>
            <f:facet name="header">Model</f:facet>
            <h:outputText value="#{car.model}" />
        </rich:column>
        <rich:column>
            <f:facet name="header">Price</f:facet>
            <h:outputText value="#{car.price}" />
        </rich:column>
        <rich:column>
            <f:facet name="header">Mileage</f:facet>
            <h:outputText value="#{car.mileage}" />
        </rich:column>
        <rich:column>
            <f:facet name="header">VIN</f:facet>
            <h:outputText value="#{car.vin}" />
        </rich:column>
        <rich:column>
            <a4j:commandLink styleClass="no-decor" execute="@this"
                render="@none" oncomplete="#{rich:component('confirmPane')}.show()">
                <h:graphicImage value="/images/icons/delete.gif" alt="delete" />
                <a4j:param value="#{it.index}"
                    assignTo="#{carsBean.currentCarIndex}" />
            </a4j:commandLink>
            <a4j:commandLink styleClass="no-decor" render="editGrid"
                execute="@this" oncomplete="#{rich:component('editPane')}.show()">
                <h:graphicImage value="/images/icons/edit.gif" alt="edit"/>
                <a4j:param value="#{it.index}"
                    assignTo="#{carsBean.currentCarIndex}" />
                <f:setPropertyActionListener target="#{carsBean.editedCar}"
                    value="#{car}" />
            </a4j:commandLink>
        </rich:column>
        <f:facet name="footer">
            <rich:dataScroller page="#{carsBean.page}" />
        </f:facet>
    </rich:dataTable>

    <a4j:jsFunction name="remove" action="#{carsBean.remove}"
        render="table" execute="@this"
        oncomplete="#{rich:component('confirmPane')}.hide();" />

<rich:popupPanel id="statPane" autosized="true">
    <h:graphicImage value="/images/ai.gif" alt="ai" />
    Please wait...
</rich:popupPanel>

<rich:popupPanel id="confirmPane" autosized="true">
    Are you sure you want to delete the row?
    <a4j:commandButton value="Cancel"
        onclick="#{rich:component('confirmPane')}.hide(); return false;" />
    <a4j:commandButton value="Delete" onclick="remove(); return false;" />
</rich:popupPanel>

<rich:popupPanel header="Edit Car Details" id="editPane" domElementAttachment="parent" width="400" height="170">
        <h:panelGrid columns="3" id="editGrid">
            <h:outputText value="Vendor" />
            <h:outputText value="#{carsBean.editedCar.vendor}" />
            <h:panelGroup />
            <h:outputText value="Model" />
            <h:outputText value="#{carsBean.editedCar.model}" />
            <h:panelGroup />
            <h:outputText value="Price" />
            <h:inputText value="#{carsBean.editedCar.price}" required="true"
                requiredMessage="Price is required" id="price"
                converterMessage="Should be a valid price"
                validatorMessage="Should be a valid price" label="Price field">
                <f:validateDoubleRange/>
            </h:inputText>
            <rich:message id="priceMsg" for="price" />
            <h:outputText value="Mileage" />
            <h:inputText value="#{carsBean.editedCar.mileage}" id="mage"
                converterMessage="Should be a valid mileage"
                validatorMessage="Should be a valid mileage" label="Mileage field" >
                <f:validateDoubleRange/>
            </h:inputText>
            <rich:message id="madeMsg" for="mage" />
            <h:outputText value="VIN" />
            <h:inputText value="#{carsBean.editedCar.vin}" id="vin"
                required="true" validatorMessage="Not a valid 17-digit VIN"
                converterMessage="Not a valid 17-digit VIN"
                requiredMessage="VIN is required">
                <f:validateLength minimum="17" maximum="17" />
            </h:inputText>
            <rich:message id="vinMsg" for="vin" />
        </h:panelGrid>
        <a4j:commandButton value="Store" action="#{carsBean.store}"
            render="table" execute="editPane"
            oncomplete="if (#{facesContext.maximumSeverity==null}) {#{rich:component('editPane')}.hide();}" />
        <a4j:commandButton value="Cancel"
            onclick="#{rich:component('editPane')}.hide(); return false;" />
</rich:popupPanel>
</h:form>

Answer 2

我使用Richfaces 3.3.3.Final和Myfaces 2.0.1没有任何问题。

确保添加了facelets-1.1.15.B1 以及web.xml中的以下上下文

<context-param>
    <param-name>org.ajax4jsf.VIEW_HANDLERS</param-name>
    <param-value>com.sun.facelets.FaceletViewHandler</param-value>
</context-param>
<context-param>
    <param-name>javax.faces.DISABLE_FACELET_JSF_VIEWHANDLER</param-name>
    <param-value>true</param-value>
</context-param>

并尝试以下修改后的代码段

<?xml version='1.0' encoding='UTF-8' ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"
    xmlns:h="http://java.sun.com/jsf/html"
    xmlns:a4j="http://richfaces.org/a4j"
    xmlns:rich="http://richfaces.org/rich"
    xmlns:f="http://java.sun.com/jsf/core">
<head>
    <title>Facelet Title</title>
</head>
<body>
    <a4j:form>
        <rich:panel header="This is the title" style="width:400px;">
            <h:outputText value="Enter your name:"/>
            <h:inputText value="#{MyBean.message}">
                <f:validateLength minimum="1" maximum="20"/>
            </h:inputText>
        </rich:panel>
    </a4j:form>
</body>
</html>

f:view问题是在身体之后宣布但在</a4j:form>之前关闭

Answer 3

您使用的是RichFaces 3.x吗？我最近遇到了同样的问题（虽然在我的情况下我不能使用JSF2.0 h：按钮），我的队友用谷歌搜索它是技术的东西，我们只需要等待RichFaces 4.0（如果你不解决的话）它真的希望我明天可以问他一个链接，如果他还有它的话。）

Answer 4

我看到你添加了richfaces-impl和richfaces-impl-jsf2 jar。根据建议，如果您使用的是jsf 2.0，则只应添加后者。

“没有找到标签”错误

4 个答案: