我在 Java Web 应用程序中使用了 pickList。但是当我测试它时，值没有移动到目标列表。我单独做了这个，效果很好。然后我复制了代码并将其粘贴到我的原始页面中，但它不起作用我不明白为什么需要帮助
这是我的工作 xhtml 代码:
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:p="http://primefaces.org/ui"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:ui="http://java.sun.com/jsf/facelets">
<h:head>
<title>Mobitel - IPP - Areas</title>
</h:head>
<h:body>
<h:form>
<p:tabView id="areas_TV" activeIndex="1">
<p:tab id="create_area_T" title="Create">
<p:growl id="msg" showDetail="true" escape="false" />
<h3 style="margin-top:0">Basic PickList</h3>
<p:pickList id="pickList" value="#{a_Area1.addResorcesipList}" var="city"
itemLabel="#{city}" itemValue="#{city}" />
<p:commandButton id="citySubmit" value="Submit"
update="displayCities" oncomplete="cityDialog.show()" style="margin-top:5px"/>
<p:dialog modal="true" showEffect="fade" hideEffect="fade" widgetVar="cityDialog">
<h:panelGrid id="displayCities" columns="2">
<h:outputText value="Source: " style="font-weight:bold"/>
<ui:repeat value="#{a_Area1.addResorcesipList.source}" var="item">
<h:outputText value="#{item}" style="margin-right:5px" />
</ui:repeat>
<h:outputText value="Target: " style="font-weight:bold"/>
<ui:repeat value="#{a_Area1.addResorcesipList.target}"var="item">
<h:outputText value="#{item}" style="margin-right:5px" />
</ui:repeat>
</h:panelGrid>
</p:dialog>
</p:tab>
</p:tabView>
</h:form>
</h:body>
我用选项卡复制了此内容并粘贴到原始文件中，但不起作用，这是原始文件:
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:p="http://primefaces.org/ui"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:ui="http://java.sun.com/jsf/facelets">
<h:head>
<title>Mobitel - IPP - Areas</title>
</h:head>
<h:body>
<p:layout fullPage="true" id="layout">
<p:layoutUnit position="north" size="20%" resizable="false">
<h:form id="TopMenuBarItems_F">
<p:menu id="TopMenuBar">
<f:facet name="aaa">
<h:form id="topform">
<p:menuButton id="logout_MBtn" value="Logout" style="margin-right:10px"/>
</h:form>
</f:facet>
</p:menu>
</h:form>
</p:layoutUnit>
<p:layoutUnit position="center">
<h:form id="tabMenuItems_F">
<p:tabMenu activeIndex="2">
<p:menuitem id="instance_M" value="Instance" url="/faces/A_Instance.xhtml"/>
<p:menuitem id="resources_M" value="Resources" url="/faces/A_Resources.xhtml"/>
<p:menuitem id="areas" value="Areas" url="/faces/A_Areas.xhtml"/>
<p:menuitem id="subnets_M" value="Subnets" url="/faces/A_Subnet.xhtml"/>
<p:menuitem id="vlsm" value="VLSM" url="/faces/A_VLSM.xhtml"/>
<p:menuitem id="ipAddress" value="IP Address" url="/faces/A_IP_Address.xhtml"/>
<p:menuitem id="logout_MBtn" value="Logout" icon="ui-icon-extlink" style="margin-right:10px"/>
</p:tabMenu>
<p:tabView id="areas_TV" activeIndex="1">
<p:tab id="create_area_T" title="Create">
<p:growl id="msg2"/>
<h:panelGrid columns="2" cellpadding="10">
<h:outputText value="AreaName :"/>
<p:inputText id ="areaNAme_Tbx" value="#{a_Area1.areaName}" />
<h:outputText value="Instance :"/>
<p:selectOneMenu id="suburbs" value="#{a_Area1.selectedInstanceId}" >
<f:selectItem itemLabel="Select instance" itemValue="" />
<f:selectItems value="#{a_Area1.instanceList}" />
<p:ajax event="change" update=":tabMenuItems_F:areas_TV:msg2,:tabMenuItems_F:areas_TV:pickList"
listener="#{a_Area1.setIpSource2(a_Area1.selectedInstanceId)}"/>
</p:selectOneMenu>
</h:panelGrid>
<h:outputText value="Resources :"/>
<p:pickList id="pickList" value="#{a_Area1.ipList}" var="ip"
itemLabel="#{ip}" itemValue="#{ip}" />
<p:commandButton id="citySubmit" value="Submit" update=":tabMenuItems_F:areas_TV:msg2" action="#{a_Area1.createArea()}" style="margin-top:5px"/>
<h:panelGrid id="displayCities" columns="2">
<h:outputText value="Source: " style="font-weight:bold"/>
<ui:repeat value="#{a_Area1.ipList.source}" var="item">
<h:outputText value="#{item}" style="margin-right:5px" />
</ui:repeat>
<h:outputText value="Target: " style="font-weight:bold"/>
<ui:repeat value="#{a_Area1.ipList.target}" var="item">
<h:outputText value="#{item}" style="margin-right:5px" />
</ui:repeat>
</h:panelGrid>
</p:dialog>
-->
</p:tab>
<p:tab id="view_area_T" title="View">
<h:panelGrid columns="1" cellpadding="10">
<h:form id="area_Tbl">
<p:dataTable id="Area_dataTable" var="area" value="#{a_Area1.areaList}" editable="true">
<p:ajax event="rowEdit" listener="#{a_Area1.onEdit(area)}" />
<p:column id="areaName_Clm" filterBy="#{area.areaName}"
headerText="Area Name" filterMatchMode="startsWith" >
<p:cellEditor>
<f:facet name="output">
<h:outputText value="#{area.areaName}" />
</f:facet>
<f:facet name="input">
<p:inputText value="#{area.areaName}"/>
</f:facet>
</p:cellEditor>
</p:column>
<p:column id="InstanceName_Clm" filterBy="#{area.areaName}"
headerText="Area Name" filterMatchMode="startsWith" >
#{area.instanceName}
</p:column>
<p:column style="width:6%">
<p:rowEditor/>
</p:column>
<p:column style="width:20%" headerText="Delete Area">
<p:commandLink id="delete_btn" value="Delete" actionListener="#{a_Area1.deleteArea(area)}"
update=":tabMenuItems_F:areas_TV:area_Tbl:Area_dataTable:"
process=":tabMenuItems_F:areas_TV:area_Tbl:Area_dataTable:">
<p:collector value="#{area}" removeFrom="#{a_Area1.areaList}" />
</p:commandLink>
</p:column>
</p:dataTable>
showEffect="fade"hideEffect="explode"modal="true">
<h:panelGrid id="display" columns="2" cellpadding="4" style="margin:0 auto;">
<h:outputText value="Resource IP"/>
<p:dataList value="{a_Area1.selectedRow.resourceList}" var="resource" itemType="disc">
{resource}
</p:dataList>
</h:panelGrid>
</p:dialog>
-->
</h:form>
</h:panelGrid>
</p:tab>
<p:tab id="edit_resorce_area_T" title="Edit Resource">
<h3 style="margin-top:0">Basic PickList</h3>
<p:pickList id="pickList1" value="#{a_Area1.addResorcesipList}" var="city"
itemLabel="#{city}" itemValue="#{city}" />
<p:commandButton id="citySubmit1" value="Submit" update="displayCities" oncomplete="cityDialog.show()" style="margin-top:5px"/>
<p:dialog modal="true" showEffect="fade" hideEffect="fade" widgetVar="cityDialog">
<h:panelGrid id="displayCities" columns="2">
<h:outputText value="Source: " style="font-weight:bold"/>
<ui:repeat value="#{a_Area1.addResorcesipList.source}" var="item1">
<h:outputText value="#{item1}" style="margin-right:5px" />
</ui:repeat>
<h:outputText value="Target: " style="font-weight:bold"/>
<ui:repeat value="#{a_Area1.addResorcesipList.target}" var="item1">
<h:outputText value="#{item1}" style="margin-right:5px" />
</ui:repeat>
</h:panelGrid>
</p:dialog>
</p:tab>
</p:tabView>
</h:form>
</p:layoutUnit>
</p:layout>
</h:body>
第一个选项列表有效，编辑资源选项卡中的第二个选项列表有问题。
这是java文件:
private List<String>addResourceIpSource = new ArrayList<String>();
private List<String>addResourceIpTarget = new ArrayList<String>();
private DualListModel<String> AddResorcesipList;
public void setIpSource() throws SQLException, ClassNotFoundException{
String q = "SELECT * FROM ipp.resource;";
ResultSet result = DB_Access.getData(q);
while(result.next()){
resourceRow r = new resourceRow();
r.setIpAddress(result.getString(1));
addResourceIpSource.add(result.getString(1));
}
//ipSource.add("select resource for perticuler instance..");
// ipList = new DualListModel<String>(ipSource, ipTarget);
AddResorcesipList = new DualListModel<String>(addResourceIpSource, addResourceIpTarget);
}
在类构造函数中调用函数......
最佳答案
我以前也遇到过类似的问题。最初不会警告后续使用，但它可能会使primeface逻辑困惑。不要像下面这样使用。
<h:form>
<h:form></h:form>
</h:form>
关于java - Primefaces 选择列表数据未从源传输到目标，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/15153003/