Question

我有一个xhtml页面，我从托管bean调用一个方法，它似乎没有工作的原因。我已经尝试了所有的措施，改为p：命令，尝试了ajax调用。 hcommand的所有页面都运行正常，请我在这里做错了什么

<?xml version="1.0" encoding="ISO-8859-1" ?>

<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:ui="http://java.sun.com/jsf/facelets"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:p="http://primefaces.org/ui">
<f:metadata>
    <f:event type="preRenderView" listener="#{hibernateController.getAllWebSites()}"/>
    <f:event type="preRenderView" listener="#{hibernateController.getAllScores()}"/>
</f:metadata>
<h:head>  
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />

    <title>Mood Watch</title>
    <h:outputStylesheet library="css" name="style.css"  />
</h:head>   

<h:body> 
    <div id="wrapper">
    <div id="header">
        <h2>Mood Watch</h2>
    </div>
    </div>

    <form>
        <p:outputLabel>Filter : </p:outputLabel>
         <p:selectOneMenu id="whySelect1" value="#{hibernateController.siteFromMood}">
                 <f:selectItems value="#{hibernateController.mySites}" var="tempSites" itemLabel="#{tempSites.site}" itemValue="#{tempSites.moodSite}" />
            </p:selectOneMenu>

            <h:commandButton value="Filter" action="#{hibernateController.filterSites()}"/>

            <h:commandButton value="View All" action="#{hibernateController.setSitMoodToNull()}"/>

    </form>

    <p:dataTable id="moodTable" var="moodValues" value="#{hibernateController.myFrontEndModels}">
        <p:column headerText="Date">
            <h:outputText value="#{moodValues.dateCreated}" />
        </p:column>

        <p:column headerText="Site">
            <h:outputText value="#{moodValues.sitename}" />
        </p:column>

        <p:column headerText="Value">
            <h:outputText value="#{moodValues.moodValue}" />
        </p:column>

    </p:dataTable>



</h:body>

public void setSitMoodToNull() {
    siteFromMood = null;
    System.out.println("This is setSiteFromMood to null :" + siteFromMood);
}


public void  filterSites(){
    System.out.println("Show me specifics");

}

Answer 1

试试这个：

您的表单标记应与此<h:form>类似，因为您使用的是h:commandButton代码，而p:dataTable代码应位于h:form代码内。在没有括号的EL中写入方法名称。

<?xml version="1.0" encoding="ISO-8859-1" ?>
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:ui="http://java.sun.com/jsf/facelets"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:p="http://primefaces.org/ui">
<f:metadata>
    <f:event type="preRenderView" listener="#{hibernateController.getAllWebSites()}"/>
    <f:event type="preRenderView" listener="#{hibernateController.getAllScores()}"/>
</f:metadata>
<h:head>  
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />

    <title>Mood Watch</title>
    <h:outputStylesheet library="css" name="style.css"  />
</h:head>   

<h:body> 
    <div id="wrapper">
    <div id="header">
        <h2>Mood Watch</h2>
    </div>
    </div>

    <h:form>
        <p:outputLabel>Filter : </p:outputLabel>
         <p:selectOneMenu id="whySelect1" value="#{hibernateController.siteFromMood}">
                 <f:selectItems value="#{hibernateController.mySites}" var="tempSites" itemLabel="#{tempSites.site}" itemValue="#{tempSites.moodSite}" />
            </p:selectOneMenu>
<h:commandButton value="Filter" actionListener="#{hibernateController.filterSites}"/>

                <h:commandButton value="View All" actionListener="#{hibernateController.setSitMoodToNull}"/>



    <p:dataTable id="moodTable" var="moodValues" value="#{hibernateController.myFrontEndModels}">
        <p:column headerText="Date">
            <h:outputText value="#{moodValues.dateCreated}" />
        </p:column>

        <p:column headerText="Site">
            <h:outputText value="#{moodValues.sitename}" />
        </p:column>

        <p:column headerText="Value">
            <h:outputText value="#{moodValues.moodValue}" />
        </p:column>

    </p:dataTable>


 </h:form>
</h:body>

Jsf h命令按钮不起作用

1 个答案: