验证阶段绕过

Question

我有一个表格，在那里我要输入一些细节，所有的细节都是重要和必要的。我使用required=true确保它不会遗漏基本信息，但是当我单击submit按钮时，它会跳过验证阶段。

我该怎么办？

        <h:panelGrid id="offline" columns="2" cellspacing="5"
                cellpadding="4" style="position:relative;top:25px;left:40%;">
                <p:outputLabel value="Cheque / Draft No  :"
                    style='font-family: font-family : Baskerville, "Baskerville Old Face",
    "Hoefler Text", Garamond, "Times New Roman", serif;;
font-size: 15px;height:23px;widht:255px;'></p:outputLabel>
                <p:outputLabel value="Cheque / Draft Date  :"
                    style='font-family: font-family : Baskerville, "Baskerville Old Face",
    "Hoefler Text", Garamond, "Times New Roman", serif;;
font-size: 15px;height:23px;widht:255px;'></p:outputLabel>
                <p:inputText id="number"
                    style='font-family: font-family : Baskerville, "Baskerville Old Face",
    "Hoefler Text", Garamond, "Times New Roman", serif;;
font-size: 13px;height:20px;widht:320px;'
                    value="#{Offline_Payment.chequedraftno}" required="true"
                    requiredMessage="Please Enter The Details">
                    <p:ajax process="@this" immediate="true"></p:ajax>
                </p:inputText>
                <p:calendar id="date"
                    style='font-family: font-family : Baskerville, "Baskerville Old Face",
    "Hoefler Text", Garamond, "Times New Roman", serif;;
font-size: 13px;height:20px;widht:320px;'
                    pattern="yyyy-MM-dd" disabledWeekends="true" navigator="true"
                    value="#{Offline_Payment.chequedraftdate}"
                    title="Please Enter the date in yyyy-MM-dd" required="true"
                    requiredMessage="Please Enter The Details">

                </p:calendar>
                <p:outputLabel value="Bank Name  :"
                    style='font-family: font-family : Baskerville, "Baskerville Old Face",
    "Hoefler Text", Garamond, "Times New Roman", serif;;
font-size: 15px;height:23px;widht:255px;'></p:outputLabel>
                <p:outputLabel value="Bank Code  :"
                    style='font-family: font-family : Baskerville, "Baskerville Old Face",
    "Hoefler Text", Garamond, "Times New Roman", serif;;
font-size: 15px;height:23px;widht:255px;'></p:outputLabel>
                <p:inputText id="banknane"
                    style='font-family: font-family : Baskerville, "Baskerville Old Face",
    "Hoefler Text", Garamond, "Times New Roman", serif;;
font-size: 13px;height:20px;widht:320px;'
                    value="#{Offline_Payment.bankname}" required="true"
                    requiredMessage="Please Enter The Details">
                    <p:ajax process="@this" immediate="true"></p:ajax>

                </p:inputText>
                <p:inputText
                    style='font-family: font-family : Baskerville, "Baskerville Old Face",
    "Hoefler Text", Garamond, "Times New Roman", serif;;
font-size: 13px;height:20px;widht:320px;'
                    value="#{Offline_Payment.bankcode}" required="true"
                    requiredMessage="Please Enter The Required Details">

                    <p:ajax process="@this" immediate="true"></p:ajax>
                </p:inputText>

                <p:commandButton value="Cancel"
                    style='font-family: font-family : Baskerville, "Baskerville Old Face",
    "Hoefler Text", Garamond, "Times New Roman", serif;;
font-size: 14px;'
                    immediate="true"
                    action="/User/orderdetail.xhtml?faces-redirect=true"></p:commandButton>
                <p:commandButton value="Proceed"
                    style='font-family: font-family : Baskerville, "Baskerville Old Face",
    "Hoefler Text", Garamond, "Times New Roman", serif;;
font-size: 14px;'
                    action="#{Offline_Payment.offline}" update="@this,growl"
                immediate="false"   validateClient="true" process="@this"></p:commandButton>
            </h:panelGrid>

Answer 1

问题是您使用了immediate="true"属性。

请查看以下链接：

• Trying to understand immediate=true: skipping validation when it shouldn't
• Immediate=true VS immediate=false in JSF Component
• http://balusc.blogspot.co.at/2006/09/debug-jsf-lifecycle.html#AddImmediateTrueToUIInputOnly
• http://balusc.blogspot.co.at/2006/09/debug-jsf-lifecycle.html#WhenShouldIUseTheImmediateAttribute

Answer 2

“立即从文档中指定监听器在执行验证或填充bean之前触发”，但我在这里没有看到任何actionlisteners！当您使用required是正确的，当我将它放入一个但没有显示的requiredMessage中时，您的代码完全正常工作，我也没有看到任何对ajax语句的影响，我删除了它，没有任何改变，您可以将这个requiredMessage放入一个bean字符串中，用于其他outputText，然后使用该ajax操作以编程方式清除它，所以尝试将每个requiredMessage放在一个表单中：

 <h:form>
    <p:inputText
   value="#{Offline_Payment.bankcode}" required="true"
                    requiredMessage="Please Enter The Required Details">

                    <p:ajax process="@this" immediate="true"></p:ajax>
                </p:inputText>
</h:form>

祝好运。