Question

我试图调查此问题，但根本没有找到解决方案。我使用带有分页的primefaces数据表。我编写了用于viewexpiredexception错误的异常处理程序，正如Ed Burns在他的博客中所建议的，但是当与ajax提交结合使用时（例如，数据表页面导航），未处理vee上的页面重定向。我在这里使用了BalusC建议的解决方案JSF Status bar / connection status information但是chrome说它缺少jsf.ajax。* javascript命名空间。该页面在tomcat 7.0.22上运行，启动时没有错误/警告，后端基于spring和mybatis。这是web.xml

<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
    version="3.0">
    <display-name>Discontinui</display-name>
    <servlet>
        <servlet-name>Faces Servlet</servlet-name>
        <servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>Faces Servlet</servlet-name>
        <url-pattern>*.jsf</url-pattern>
    </servlet-mapping>
    <context-param>
        <param-name>javax.servlet.jsp.jstl.fmt.localizationContext</param-name>
        <param-value>resources.application</param-value>
    </context-param>
    <context-param>
        <param-name>javax.faces.PROJECT_STAGE</param-name>
        <param-value>Development</param-value>
    </context-param>
    <welcome-file-list>
        <welcome-file>index.jsp</welcome-file>
        <welcome-file>index.jsf</welcome-file>
    </welcome-file-list>
    <listener>
        <listener-class>org.springframework.web.util.Log4jConfigListener</listener-class>
    </listener>
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>/WEB-INF/applicationContext.xml</param-value>
    </context-param>
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>
    <listener>
        <listener-class>org.springframework.web.context.request.RequestContextListener</listener-class>
    </listener>
    <session-config>
        <session-timeout>2</session-timeout>
    </session-config>
</web-app>

这是faces-config.xml

<faces-config
    xmlns="http://java.sun.com/xml/ns/javaee"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-facesconfig_2_0.xsd"
    version="2.0">

    <application>  
        <el-resolver>org.springframework.web.jsf.el.SpringBeanFacesELResolver</el-resolver>  
    </application> 

    <factory>
      <exception-handler-factory>it.dipvvf.vi.app.common.ViewExpiredExceptionExceptionHandlerFactory</exception-handler-factory>
  </factory>
</faces-config>

这是index.xhtml页面：

<?xml version="1.0" encoding="ISO-8859-1" ?>
<!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:f="http://java.sun.com/jsf/core"
    xmlns:h="http://java.sun.com/jsf/html"
    xmlns:p="http://primefaces.org/ui">
<h:head>
    <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1" />
    <title>Prova</title>
    <script type="text/javascript">
    var statusUpdate = function statusUpdate(data) {
        var statusArea = document.getElementById("statusArea");
        var text = statusArea.value;
        text = text + "Name: "+data.source.id;
        if (data.type === "event") {
            text = text +" Event: "+data.name+"\n";
        } else {  // otherwise, it's an error
            text = text + " Error: "+data.name+"\n";
        }
        statusArea.value = text;
    };

    // Setup the statusUpdate function to hear all events on the page
    alert("0");
    jsf.ajax.addOnEvent(statusUpdate);
    alert("1");
    jsf.ajax.addOnError(statusUpdate);
    alert("2");
    </script>
</h:head>
<h:body>
    <h:form>
Selezionare il tipo di accesso:<br />
        <p:selectOneMenu id="somAccessMode" value="#{accessMode.mode}">
            <f:selectItem itemValue="#{accessMode.ufficioPersonale}"
                itemLabel="Ufficio Personale" />
            <f:selectItem itemValue="#{accessMode.capoTurno}"
                itemLabel="Capo Turno" />
        </p:selectOneMenu>
        <br />
        <p:commandButton id="bEnter" value="Entra"
            action="#{accessMode.onEntraClick}" update="growl" />
        <br />
        <p:dataTable var="nominativo" value="#{accessMode.elencoNominativi}" paginator="true" rows="1"  
                 paginatorTemplate="{CurrentPageReport}  {FirstPageLink} {PreviousPageLink} {PageLinks} {NextPageLink} {LastPageLink} {RowsPerPageDropdown}"  
                 rowsPerPageTemplate="5,10,15">
            <p:column>
                <f:facet name="header">  
                    Cognome  
                </f:facet>
                <h:outputText value="#{nominativo.cognome}" />
            </p:column>

            <p:column>
                <f:facet name="header">  
                    Nome  
                </f:facet>
                <h:outputText value="#{nominativo.nome}" />
            </p:column>

            <p:column>
                <f:facet name="header">  
                    Data Iscrizione  
                </f:facet>
                <h:outputText value="#{nominativo.iscrizione}">
                    <f:convertDateTime pattern="dd-MM-yyyy" />
                </h:outputText>
            </p:column>
        </p:dataTable>
        <hr />
        <br />
        <!-- <p:messages showDetail="true" autoUpdate="true"/>   -->
        <p:growl id="growl" showDetail="true" sticky="true" />
        <h3>Status:</h3>
        <textarea id="statusArea" cols="40" rows="10" readonly="readonly" />
    </h:form>
</h:body>
</html>

我为测试提供的不仅仅是需要的。警报（“1”）和“2”未显示，jsf.ajax.add ...在浏览器中引发错误。如果我在chrome中查看和生成页面，我看不到任何包含在mojarra包中的jsf.js。缺陷在哪里？

感谢任何人，并为长度感到抱歉！

Answer 1

问题是您使用的是primefaces组件(<p:commandButton) <p:commandButton id="bEnter" value="Entra" action="#{accessMode.onEntraClick}" update="growl"/> 试试这个： <h:commandButton id="bEnter" value="Entra" action="#{accessMode.onEntraClick}"> <f:ajax execute="@form" render="growl"/> </h:commandButton>

primefaces注册自己的回调，任何jsf.ajax。*将无法从primefaces组件执行。

PrimeFaces 3.0 + Mojarra 2.1.6 javascript ajax包jsf.ajax。*不可用 - ViewExpiredException

1 个答案: