托管Bean中的空值

Question

即使当我在输入字段中输入有效值时，它们仍在托管bean中提供空值。 我正在为他们所有的空值。 我已经尝试调试，但无法找出问题所在。

需要渲染，因为在用户单击“批准”按钮后，“注册”页面-输出标签，输入字段，“批准”，“拒绝”按钮被删除，并显示outputLabel value =“ Registration Approved

rendered="#{approveRejectMB.registrationNotComplete and !approveRejectMB.registrationRejected}">

根据用户要求更改了输出和输入字段值。如果他选择选项1，则输出和输入字段的值将显示为1。

rendered="#{registrationMB.registrationEntity.registrationType.registrationTypeId eq 2}"/>
rendered="#{registrationMB.registrationEntity.registrationType.registrationTypeId eq 1}"

Registrationpage.xhtml

<ui:composition xmlns="http://www.w3.org/1999/xhtml"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:ui="http://java.sun.com/jsf/facelets"
xmlns:p="http://primefaces.org/ui"
xmlns:f="http://java.sun.com/jsf/core"
    xmlns:pe="http://primefaces.org/ui/extensions"
>

<p:panel id="registrationfinal" styleClass="panelNoBorder">
        <p:fieldset toggleable="true"  toggleSpeed="500" legend="Registration">

    <h:panelGrid columns="1" styleClass="panelNoBorder">
            <p:row> 
                <p:messages for="RegistrationSubmitMessageId" showDetail="true" p:autoUpdate="true" closable="false" />
            </p:row> 
        </h:panelGrid>  

    <h:panelGrid columns="2" styleClass="panelNoBorder" rendered="#{approveRejectMB.registrationNotComplete and !approveRejectMB.registrationRejected}">

                <p:outputLabel value="Student Number"/>
                             <p:row>
                                    <p:inputText id="studentNumber" maxlength="10" style="width: 85%;"
                                                            value="#{approveRejectMB.registrationApprovalEntity.studentNumber}">        
                                    </p:inputText>
                            </p:row>

                    <p:outputLabel value="Subject Number"/>
                                <p:row>0
                                        <p:inputText id="subjectNumber" maxlength="10" style="width: 85%;" 
                                                    value="#{approveRejectMB.registrationApprovalEntity.subjectNumber}">         
                                        </p:inputText>
                                </p:row>

                    <p:outputLabel value="Number of days Approved"  rendered="#{registrationMB.registrationEntity.registrationType.registrationTypeId eq 1}"/>
                                <p:row>
                                        <p:inputText id="numberDaysApproved" maxlength="10" style="width: 85%;"
                                            value="#{approveRejectMB.registrationApprovalEntity.numberDaysApproved}" rendered="#{registrationMB.registrationEntity.registrationType.registrationTypeId eq 1}">         
                                         </p:inputText>
                                </p:row>


                    <p:outputLabel value="Evaluation Result" rendered="#{registrationMB.registrationEntity.registrationType.registrationTypeId eq 2}"/>

                                <p:row>
                                        <p:inputText id="evaluationResult" maxlength="10" style="width: 85%;"
                                            value="#{approveRejectMB.registrationApprovalEntity.evaluationResult}" rendered="#{registrationMB.registrationEntity.registrationType.registrationTypeId eq 2}">
                                         </p:inputText>
                                </p:row>

   </h:panelGrid>

            <br></br><br>
            </br><br></br>
            <p:commandButton id="approveRegistration" value="Approve" type="button" onclick="PF('waitSpinner').show();" oncomplete="PF('waitSpinner').hide();"
                             actionListener="#{approveRejectMB.approveRegistration}" update="registrationfinal"     
                             widgetVar="approveRegistrationVar" rendered="#{approveRejectMB.registrationNotComplete and !approveRejectMB.registrationRejected}">
                <p:ajax listener="#{approveRejectMB.approveRegistration}" />
            </p:commandButton>

            <p:commandButton id="rejectRegistration" value="Reject" type="button"
                             onclick="PF('rejectComments').show();" onkeypress="PF('rejectComments').show();" style="display:inline"
                             actionListener="#{approveRejectMB.rejectRegistration}"     
                             widgetVar="rejectRegistrationVar" rendered="#{approveRejectMB.registrationNotComplete and !approveRejectMB.registrationRejected}" >
                             <p:ajax listener="#{approveRejectMB.rejectRegistration}" />
            </p:commandButton>
            <p:outputLabel value="Registration Approved" rendered="#{!approveRejectMB.registrationNotComplete}"  />
            <p:outputLabel value="Registration Rejected" rendered="#{approveRejectMB.registrationRejected}"  />
        </h:panelGrid>
        <h:panelGrid columns="1" styleClass="panelNoBorder">
            <ui:include src="rejectionRegistrationCommentsDetail.xhtml"  />
        </h:panelGrid>       

    </p:fieldset>
    </p:panel>

registrationApprovalEntity.setStudentNumber(studentNumber);
registrationApprovalEntity.setSubjectNumber(subjectNumber);
registrationApprovalEntity.setNumberDaysApproved(numberDaysApproved);
registrationApprovalEntity.setEvaluationResult(evaluationResult);

实际结果-获取StudentNumber，subjectNumber，numberDaysApproved，evaluationResult的空值

预期结果- 用户必须能够设置

的值

registrationApprovalEntity.setStudentNumber(studentNumber);
registrationApprovalEntity.setSubjectNumber(subjectNumber);
registrationApprovalEntity.setNumberDaysApproved(numberDaysApproved);
registrationApprovalEntity.setEvaluationResult(evaluationResult);