Question

我是JSF / Java的新手，但现在已经尝试解决这个问题了几天。

我的表单在验证时遇到困难。当所有条目都有效时，一切运作良好。我打破验证的那一刻（例如不提供必需的值），表单就会卡住。发生的一件事是我无法纠正似乎无效的条目并重新发布。此外，我有一个selectOneMenu的级联ajax调用，突然开始失败...即使这不是表单的无效部分。

我注意到级联下拉似乎是在其重写的equals方法中抛出空指针异常。

我不知所措。

<html xmlns="http://www.w3.org/1999/xhtml"
    xmlns:h="http://java.sun.com/jsf/html"
    xmlns:f="http://java.sun.com/jsf/core"
    xmlns:p="http://primefaces.org/ui"
    xmlns:ui="http://java.sun.com/jsf/facelets">
<ui:composition template="/templates/layout.xhtml">
    <ui:define name="content">
        <p:ajaxStatus onstart="statusDialog.show();" onsuccess="statusDialog.hide();"/>  

        <p:dialog modal="true" widgetVar="statusDialog" header="Status"   
                draggable="false" closable="false">  
        <p:graphicImage value="/resources/images/ajaxloadingbar.gif" />  
</p:dialog>
        <h:form id="form">
            <p:panel id="panel"
                header="Please ensure your personal details are accurate"
                style="margin-bottom:10px;">
                <p:messages id="msgs" />
                <h:outputText
                    value="Please ensure your personal details are up to date and accurate within the Admin Direct system. Please note that this application only supports GMD customers, so unless you are within GMD, or are a user of the GMD Admin Direct service, please do not enter your details or attempt to use the application for administrative support." />
                <h:panelGrid columns="3" cellpadding="5" id="grid">

                    <h:outputText value="First Name:" style="font-weight:bold" />
                    <p:inputText id="firstName"
                        value="#{personalDetailsBean.user.firstName}" 
                        requiredMessage="First name is required..." style="width:250px" />
                    <p:message id="firstNameMessage" for="firstName" />

                    <h:outputText value="Last Name:" style="font-weight:bold" />
                    <p:inputText id="lastName"
                        value="#{personalDetailsBean.user.lastName}" 
                        requiredMessage="Last name is required..." style="width:250px" />
                    <p:message id="lastNameMessage" for="lastName" />

                    <h:outputText value="Select Function:" style="font-weight:bold" />
                    <p:selectOneMenu id="functions"
                        value="#{personalDetailsBean.user.function}" 
                        style="width:250px">
                        <f:selectItem itemLabel="Select Function" itemValue="" />
                        <f:selectItems value="#{personalDetailsBean.functions}" var="func"
                            itemLabel="#{func.functionName}" itemValue="#{func}" />
                        <f:converter converterId="functionConverter" />
                    </p:selectOneMenu>
                    <p:message id="functionMessage" for="functions" />

                    <h:outputText value="Select Site" style="font-weight:bold" />
                    <p:selectOneMenu id="sites"
                        value="#{personalDetailsBean.user.site}" 
                        style="width:250px">
                        <f:selectItem itemLabel="Select Site" itemValue="" />
                        <f:selectItems value="#{personalDetailsBean.sites}" var="sit"
                            itemLabel="#{sit.siteName}" itemValue="#{sit}" />
                        <f:converter converterId="siteConverter" />
                        <p:ajax update="region" event="change" process="@this"/>
                    </p:selectOneMenu>
                    <p:message id="siteMessage" for="sites" />

                    <h:outputText value="Region" style="font-weight:bold" />
                    <h:outputText id="region"
                        value="#{personalDetailsBean.user.site.region.regionName}" />
                    <p:message id="regionMessage" for="region" />

                    <h:outputText value="Email" style="font-weight:bold" />
                    <p:inputText id="email" value="#{personalDetailsBean.user.email}"
                        required="true"
                        validatorMessage="Invalid email address format"
                        style="width:250px">
                    <f:validateRegex
                       pattern="[\w\.-]*[a-zA-Z0-9_]@[\w\.-]*[a-zA-Z0-9]\.[a-zA-Z][a-zA-Z\.]*[a-zA-Z]" />
                        <f:validateLength minimum="2" />
                    </p:inputText>
                    <p:message id="emailMessage" for="email" />
                </h:panelGrid>
                <p:separator />
                <p:commandButton value="Save" id="btnSubmit" actionListener="#{personalDetailsBean.saveUser}" process="@all" update="panel" />
            </p:panel>
        </h:form>
    </ui:define>
</ui:composition>
</html>

任何建议都非常感谢。

此致

SM

验证失败后，JSF Primefaces会形成错误

0 个答案: