为什么，当我调用 print 方法 filter returnt 时null？
<ui:define>
<h:form>
<div>
<div>
<span>
<h:form>
<p:panelgrid>
...
<p:outputLabel value="Исполнитель-инженер :"/>
<h:inputText id="Eng" value="#{issueMoscowBean.changeIssue.engineerInf}"/>
...
close tags
和打印方法
@Named
@Scope("session")
public class IssueMoscowBean implements Serializable {
...
public void saveOpen() throws CloneNotSupportedException {
if (listOpenI.contains(current)) {
System.out.println("CURRENT IN " + current.getEngineerInf());
listOpenI.set(listOpenI.indexOf(current), changeIssue);
System.out.println("Change IN " + changeIssue.getEngineerInf());
...
}
控制台输出为： CURRENT IN null Change IN null
<ui:composition template="/templates/layout.xhtml"
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"
xmlns:c="http://java.sun.com/jsp/jstl/core"
>
<ui:define name="content">
<style>
.colStyle1 { width: 25% !important;
}
.colStyle2 { width: 85% !important;
}
</style>
<h:form id="form">
<div style="width:88%; margin:auto !important; text-align: center;">
<p:tabMenu activeIndex="2" style=" width:100%; font-size: 14px !important; margin:0px auto !important; ">
<p:menuitem value="#{issueMoscowBean.getAllI()}" url="/modules/core/views/all.xhtml" onclick="#{issueMoscowBean.setFirstOpen()}"/>
<p:menuitem value="#{issueMoscowBean.getNewI()}" url="/modules/core/views/new.xhtml" />
<p:menuitem value="#{issueMoscowBean.getOpenI()}" url="#" />
<p:menuitem value="#{issueMoscowBean.getSetI()}" url="/modules/core/views/set.xhtml"/>
<p:menuitem value="#{issueMoscowBean.getExecI()}" url="/modules/core/views/execute.xhtml"/>
<p:menuitem value="#{issueMoscowBean.getClI()}" url="/modules/core/views/close.xhtml"/>
<p:menuitem value="#{issueMoscowBean.getRetI()}" url="/modules/core/views/return.xhtml"/>
</p:tabMenu>
<br/>
<br/>
<p:panelGrid style="padding-top: 0">
<p:selectOneMenu value="#{issueMoscowBean.param}" style="width: 20% !important; height: 100px">
<f:selectItem itemLabel="Выбрать критерий" itemValue="10" />
<f:selectItem itemLabel="По номеру заявки" itemValue="0" />
<f:selectItem itemLabel="По серийному номеру устройства" itemValue="1" />
<f:selectItem itemLabel="По ID регистраиции в ПС" itemValue="2" />
<f:selectItem itemLabel="По контактному лицу банка-клиента" itemValue="3" />
</p:selectOneMenu>
<h:inputText id="myFilter_text" value="#{issueMoscowBean.filter}" style="float: left;width: auto !important"/>
<p:commandButton value="Поиск" update="@all" ajax="true" style="float: left;width: auto !important"/>
</p:panelGrid>
<div style="width: 100%;padding-bottom: 5%;height: 75%">
<span style="float: left; width: 25%">
<p:dataTable id="dataTable" var="mem" value="#{issueMoscowBean.listOpenI}" widgetVar="Заявки"
style="width:100% !important; text-align: left; width: 100%;height: 100% !important; overflow-y: auto;overflow-x: auto;font-family: Cambria;background-color: white"
selection="#{issueMoscowBean.current}" selectionMode="single" rowKey="#{mem.docId}" rowStyleClass="#{mem.status eq 'Новая' ? 'new':
null}">
<p:ajax event="rowSelect" update=":form:issueDetailForm:display" />
<p:column filterMatchMode="contains" sortBy="#{mem.docId}" headerText="Список всех заявок" style="font-family: Cambria">
<h:outputText value="Время получения наряда:#{mem.taskRetrieved}" title="View" style="font-size: 15px !important;"/>
<br/>
<h:outputText value="№ серийный устройства:#{mem.atmSerial}" title="View" style="font-size: 15px !important;"/>
<br/>
<h:outputText value="Город:#{mem.city}" title="View" style="font-size: 15px !important;"/>
</p:column>
</p:dataTable>
</span>
<span style="float: left;width: 75%;height: available">
<h:form id="issueDetailForm" rendered="#{issueMoscowBean.openIsEmptyTAble()}" >
<p:panelGrid id="display" columns="2" columnClasses="colStyle1,colStyle2" style="margin:0 auto;width: 100%;" >
<f:facet name="header">
<p:outputPanel>
<h:outputText value="Просмотр данных заявки"/>
</p:outputPanel>
</f:facet>
<h:outputText value="№ документа ССС :"></h:outputText>
<h:outputText value="#{issueMoscowBean.changeIssue.docId}"/>
<h:outputText value="№ наряда :"></h:outputText>
<h:outputText value="#{issueMoscowBean.changeIssue.naryadRecId}"/>
<h:outputText value="Тип наряда :"></h:outputText>
<h:outputText value="#{issueMoscowBean.changeIssue.naryadType}"/>
<h:outputText value="TransmasterID :"></h:outputText>
<h:outputText value="#{issueMoscowBean.changeIssue.transmasterID}"/>
<h:outputText value="Модель устройства :"></h:outputText>
<h:outputText value="#{issueMoscowBean.changeIssue.atmModel}"/>
<h:outputText value="№ серийный устройства:"></h:outputText>
<h:outputText value="#{issueMoscowBean.changeIssue.atmSerial}"/>
<h:outputText value="Районный центр :"></h:outputText>
<h:outputText value="#{issueMoscowBean.changeIssue.rc}"/>
<h:outputText value="Область :"></h:outputText>
<h:outputText value="#{issueMoscowBean.changeIssue.oblast}"/>
<h:outputText value="Город :"></h:outputText>
<h:outputText value="#{issueMoscowBean.changeIssue.city}"/>
<h:outputText value="Адрес :"></h:outputText>
<h:outputText value="#{issueMoscowBean.changeIssue.adress}"/>
<h:outputText value="Название организации установки:"></h:outputText>
<h:outputText value="#{issueMoscowBean.changeIssue.org}"/>
<h:outputText value="Время сбоя :"></h:outputText>
<h:outputText value="#{issueMoscowBean.changeIssue.issueCreated}"/>
<h:outputText value="Код ошибки :"></h:outputText>
<h:outputText value="#{issueMoscowBean.changeIssue.errorCode}"/>
<h:outputText value="MSTATUS_MDATA :"></h:outputText>
<h:outputText value="#{issueMoscowBean.changeIssue.mstatus_mdata}"/>
<h:outputText value="№ инцидента ITSM :"></h:outputText>
<h:outputText value="#{issueMoscowBean.changeIssue.incidentNumber}"/>
<h:outputText value="Дата инцидента в ITSM :"></h:outputText>
<h:outputText value="#{issueMoscowBean.changeIssue.incidentCreated}"/>
<h:outputText value="Дата наряда в ITSM :"></h:outputText>
<h:outputText value="#{issueMoscowBean.changeIssue.naryadCreated}"/>
<h:outputText value="Тип сбоя в ITSM :"></h:outputText>
<h:outputText value="#{issueMoscowBean.changeIssue.srbCode}"/>
<h:outputText value="Описание для ССС:"></h:outputText>
<h:outputText value="#{issueMoscowBean.changeIssue.sssDescription}"/>
<h:outputText value="Cтатус сейфа :"></h:outputText>
<h:outputText value="#{issueMoscowBean.changeIssue.safeStatus}"/>
<h:outputText value="Код закрытия :"></h:outputText>
<h:outputText value="#{issueMoscowBean.changeIssue.closeStstus}"/>
<h:outputText value="Время получения наряда :"></h:outputText>
<h:outputText value="#{issueMoscowBean.changeIssue.taskRetrieved}"/>
<h:outputText value="Время последнего обновления :"></h:outputText>
<h:outputText value="#{issueMoscowBean.changeIssue.taskLastUpdated}"/>
<h:outputText value="Источник последнего обновления :"></h:outputText>
<h:outputText value="#{issueMoscowBean.changeIssue.taskLastUpdatedBy}"/>
<p:outputLabel value="Тип обслуживания :">
<p:message for="LevelService" id="wrongTypeService" />
</p:outputLabel>
<p:selectOneMenu id="LevelService" value="#{issueMoscowBean.changeIssue.taskLevelService}">
<f:selectItem itemLabel="ПСО" itemValue="1" />
<f:selectItem itemLabel="Разовое" itemValue="2" />
<p:ajax event="blur" update="wrongTypeService"/>
</p:selectOneMenu>
<p:outputLabel value="Номер договора :">
<p:message for="NumIssue" id="wrongNumIssue" />
</p:outputLabel>
<h:inputText id="NumIssue" value="#{issueMoscowBean.changeIssue.numIssue}" size="100" />
<p:outputLabel value="Дата начала обслуживания :"/>
<p:calendar id="DateBegin" value="#{issueMoscowBean.tempDate4}" locale="ru" pattern="MM/dd/yyyy HH:mm:ss" />
<p:outputLabel value="Время устранения неисправности :"/>
<h:inputText id="Time" value="#{issueMoscowBean.changeIssue.sla}" size="100" />
<p:outputLabel value="Исполнитель-инженер :"/>
<h:inputText id="Eng" value="#{issueMoscowBean.changeIssue.engineerInf}"/>
<p:outputLabel value="Дата и время передачи заявки инженеру :"/>
<p:calendar id="SendEng" value="#{issueMoscowBean.tempDate5}" locale="ru" pattern="MM/dd/yyyy HH:mm:ss" />
<p:outputLabel value="Тип работ :"></p:outputLabel>
<p:selectOneMenu value="#{issueMoscowBean.changeIssue.taskWorkValue}" style="width: 100%">
<f:selectItem itemLabel="Ремонт" itemValue="1" />
<f:selectItem itemLabel="Профилактика" itemValue="2" />
<f:selectItem itemLabel="Апгрейд" itemValue="2" />
<f:selectItem itemLabel="Запуск в эксплуатацию" itemValue="2" />
</p:selectOneMenu>
<p:outputLabel value="Номер заявки вендора :"/>
<h:inputText id="NumVendor" value="#{issueMoscowBean.changeIssue.numIssueVendor}" size="100" />
<h:outputText value="Cтатус :"></h:outputText>
<h:outputText value="#{issueMoscowBean.changeIssue.status} " />
<f:facet name="footer">
<p:commandButton value="Отменить изменения" update="issueDetailForm" process="@this" action="#{issueMoscowBean.back}" immediate="true" />
<p:commandButton value="Cохранить изменения" update="issueDetailForm" process="@this" action="#{issueMoscowBean.saveOpen}" immediate="true" />
<p:commandButton value="Назначить заявку" update=":form:dataTable, :growl" oncomplete="issueDialog2.show()" actionListener="#{issueMoscowBean.setI()}"/>
<p:commandButton value="Отменить Заявку" update=":form:issueDetailForm:display" process="@this" action="#{issueMoscowBean.setShowForm(1)}" immediate="true" />
<p:panelGrid id="display2" columns="2" columnClasses="colStyle1,colStyle2" rendered="#{issueMoscowBean.showForm}">
<h:outputText value="Опишите причину отмены :"></h:outputText>
<p:inputTextarea value="#{issueMoscowBean.changeIssue.closeComment}" cols="10"/>
<p:commandButton value="Отправить" update=":form:dataTable" process="@this" action="#{issueMoscowBean.returnIOpen()}" />
<p:commandButton value="Отмена" update=":form:issueDetailForm:display" process="@this" action="#{issueMoscowBean.setShowForm(0)}" immediate="true" />
</p:panelGrid>
</f:facet>
</p:panelGrid>
</h:form>
</span>
</div>
</div>
</h:form>
<p:growl id="growl" showDetail="true" life="5000" />
</ui:define>
</ui:composition>