任何人都可以帮助我解决问题吗？虽然我已经看到来自这个网站的semilar问题，但我无法解决我的问题。这是我的代码..
<?xml version='1.0' encoding='UTF-8' ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<ui:composition
xmlns="http://www.w3.org/1999/xhtml"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:ui="http://java.sun.com/jsf/facelets"
xmlns:p="http://primefaces.org/ui">
<meta charset="utf-8"/>
<meta name="viewport" content="width=device.width, initial-scale=1"/>
<meta http-equiv="X-UA-Conpatible" content="IE=edge"/>
<h:outputStylesheet library="css" name="bootstrap.css"/>
<link href="resources/css/w3.css" rel="stylesheet" type="text/css"/>
<link href="resources/css/w3-theme-teal.css" rel="stylesheet" type="text/css"/>
<div class="panel panel-info">
<!-- Default panel contents -->
<div class="panel-heading">Student Wise Fees Collection Details</div>
<div class="panel-body">
<div class="row">
<div class="col-lg-3 col-md-3 col-sm-3">
<div class="panel panel-info" >
<div class="panel-heading">Payment Details</div>
<div class="panel-body">
<div class="col-lg-12 col-md-12 col-sm-12" style="padding-top: 4%">
<h:form id="form1">
<div class="input-group input-group-lg input-group-sm" style="padding-bottom: 6%;">
<span class="input-group-addon" id="sizing-addon1" style="color: blue;">Student Id:</span>
<p:inputText id="student_id" value="#{controllerBean.selectedfee.stuId}" type="text" readonly="true" style="width: 85%; color: blue;" class="form-control" placeholder="Student Id"/>
</div>
<div class="input-group input-group-lg input-group-sm" style="padding-bottom: 6%;">
<span class="input-group-addon" id="sizing-addon1">Name:</span>
<p:inputText id="stname" type="text" readonly="true" value="#{controllerBean.selectedfee.name}" class="form-control" placeholder="Name of the student" />
</div>
<div class="input-group input-group-lg input-group-sm" style="padding-bottom: 6%;">
<span class="input-group-addon" id="sizing-addon1">Program:</span>
<p:inputText id="pname" type="text" readonly="true" value="#{controllerBean.selectedfee.program}" class="form-control" placeholder="Program Name" />
</div>
<div class="input-group input-group-lg input-group-sm" style="padding-bottom: 6%;">
<span class="input-group-addon" id="sizing-addon1">Session:</span>
<p:inputText id="s_name" type="text" readonly="true" value="#{controllerBean.selectedfee.session}" class="form-control" placeholder="Session Name" />
</div>
<div class="input-group input-group-lg input-group-sm" style="padding-bottom: 6%;">
<span class="input-group-addon" id="sizing-addon1">Recept No:</span>
<p:inputText id="recptno" type="text" value="#{controllerBean.selectedfee.recptNo}" readonly="true" class="form-control" placeholder="Recept Number" />
</div>
<div class="input-group input-group-lg input-group-sm" style="padding-bottom: 6%;">
<span class="input-group-addon" id="sizing-addon1">Amount:</span>
<p:inputText id="a_mnt" type="text" value="#{controllerBean.selectedfee.amount}" readonly="true" class="form-control" placeholder="Paid Amount" />
</div>
<div class="input-group input-group-lg input-group-sm" style="padding-bottom: 6%;">
<span class="input-group-addon" id="sizing-addon1" style="color: green;">Voucher:</span>
<p:inputText id="voucher" type="text" value="#{controllerBean.selectedfee.AIBLVoucher}" readonly="true" style="color: green;" class="form-control" placeholder="AIBL Voucher Number" />
</div>
<div class="input-group input-group-lg input-group-sm" style="padding-bottom: 4%;">
<span class="input-group-addon" id="sizing-addon1" style="color: red;">AUB Token:</span>
<p:inputText id="aub_token" type="text" value="#{controllerBean.selectedfee.stud_pay_rec_mid}" style="color: red;" readonly="true" class="form-control" placeholder="AUB TXN ID Number" />
</div>
</h:form>
</div>
</div>
</div>
</div>
<div class="col-lg-9 col-md-9 col-sm-9" >
<div class="col-lg-12 col-md-12 col-sm-12" >
<div class="panel panel-info">
<div class="panel-heading">Student's Payment Record</div>
<div class="panel-body">
<h:form id="form2">
<input type="text" class="form-control" id="task-table-filter" data-action="filter" data-filters="#task-table" placeholder="Filter Tasks" />
<p:dataTable class="table table-hover" value="#{controllerBean.listofunifees}" var="FEES_COLLECTION" selection="#{controllerBean.selectedfee}" id="task-table" rowKey="#{FEES_COLLECTION.stud_pay_rec_mid}" selectionMode="single" paginator="true" paginatorPosition="bottom" rows="7" paginatorTemplate="{CurrentPageReport} {FirstPageLink} {PreviousPageLink} {PageLinks} {NextPageLink} {LastPageLink} {RowsPerPageDropdown}" >
<p:ajax event="rowSelect" update=":form1" />
<p:column headerText="StuId" width="11%">
<h:outputText value="#{FEES_COLLECTION.stuId}" />
</p:column>
<p:column headerText="Student Name">
<h:outputText value="#{FEES_COLLECTION.name}" />
</p:column>
<p:column headerText="Program" width="15%">
<h:outputText value="#{FEES_COLLECTION.program}" />
</p:column>
<p:column headerText="Session" width="11%">
<h:outputText value="#{FEES_COLLECTION.session}" />
</p:column>
<p:column headerText="Rcpt No" width="10%">
<h:outputText value="#{FEES_COLLECTION.recptNo}" />
</p:column>
<p:column headerText="Amount" width="10%">
<h:outputText value="#{FEES_COLLECTION.amount}" />
</p:column>
<p:column headerText="Voucher" width="11%">
<h:outputText value="#{FEES_COLLECTION.AIBLVoucher}" />
</p:column>
</p:dataTable>
</h:form>
</div>
</div>
</div>
</div>
<div class="col-lg-12 col-md-12 col-sm-12" style="padding-top: 0px;">
<div class="col-lg-4 col-md-4 col-sm-4">
</div>
<div class="col-lg-4 col-md-4 col-sm-4">
<h:form id="form3">
<button type="button" class="btn btn-success btn-sm col-lg-5 col-md-5 col-sm-5">Save</button>
<div class="col-lg-2 col-md-2 col-sm-2"></div>
<button type="button" class="btn btn-danger btn-sm col-lg-5 col-md-5 col-sm-5">Cancel</button>
</h:form>
</div>
<div class="col-lg-4 col-md-4 col-sm-4">
</div>
</div>
</div>
</div>
</div>
</ui:composition>
当我运行此代码时，它显示javax.faces.FacesException：找不到带有表达式“：form1：st_id”的组件，引用自“centrepage：form2：task-table”。
答案 0 :(得分：0)
现在我得到了答案。应该是＆＃34;：centrepage：form1：st_id，..，...＆＃34;等等。底线是update =＆＃34; centrepage：form1：st_id＆＃34;。谢谢你们每个人