在JSF中使用链接设置可编辑/可注意区域？

Question

大家好，我是JSF-Hibernate的新手。我的数据库中有一个名为“Personels”的表，我使用一个函数从那里获取记录，并显示在“listallPersonels.xhtml”页面上。我在每个姓氏旁边都有一个链接，当点击它时，点击的行应该转到可编辑区域。我有布尔变量来保存每个记录的值。除了可编辑区域链接外，所有的东西都是工作的。点击它，什么都没有改变。“editable”的值不会从“false”变为“true”。我的代码在这里，问题出在哪里？谢谢...

My ManagedBean-PersonelMB；

@ManagedBean
@SessionScoped
public class PersonelMB implements Serializable{

/**
 * Creates a new instance of PersonelMB
 */
public PersonelMB() {
}
private int personelid;
private String personelname,personelsurname;

public int getPersonelid() {
    return personelid;
}

public void setPersonelid(int personelid) {
    this.personelid = personelid;
}

public String getPersonelname() {
    return personelname;
}

public void setPersonelname(String personelname) {
    this.personelname = personelname;
}

public String getPersonelsurname() {
    return personelsurname;
}

public void setPersonelsurname(String personelsurname) {
    this.personelsurname = personelsurname;
}



private NewHibernateUtil hu;
private Session s;
private Personels personel;
private List<Personels> plist;

public List<Personels> getAllPersonelsFromDatabase(){
    plist=new ArrayList<>();
    s=hu.getSessionFactory().openSession();
    s.beginTransaction();
    Query qu=s.createQuery("from Personels");
    plist=qu.list();
    s.getTransaction().commit();
    s.close();
    return plist;
}

public String addRecord(){
    Personels p=new Personels();
    p.setPersonelName(personelname);
    p.setPersonelSurname(personelsurname);
    s=hu.getSessionFactory().openSession();
    s.beginTransaction();
    s.save(p);
    s.getTransaction().commit();
    s.close();
    p=null;
    personelname="";
    personelsurname="";
    return "success";
}

public String editRecord(Personels p){
    p.setEditable(true);
    return null;
}

public String saveAlteration(Personels pr){
    for(Personels pers:mylist)
        pers.setEditable(false);

    s=hu.getSessionFactory().openSession();
    s.beginTransaction();
    s.update(pr);
    s.getTransaction().commit();
    s.close();
    return null;
}
public String deleteRecord(Personels p){
    s=hu.getSessionFactory().openSession();
    s.beginTransaction();
    s.delete(p);
    s.getTransaction().commit();
    s.close();
    return "deleted";
}
}

我的Java类-Personels.Java

public class Personels  implements java.io.Serializable {


 private Integer personelId;
 private String personelName;
 private String personelSurname;

public Personels() {
}

public Personels(String personelName, String personelSurname) {
   this.personelName = personelName;
   this.personelSurname = personelSurname;
}

public Integer getPersonelId() {
    return this.personelId;
}

public void setPersonelId(Integer personelİd) {
    this.personelId = personelİd;
}
public String getPersonelName() {
    return this.personelName;
}

public void setPersonelName(String personelName) {
    this.personelName = personelName;
}
public String getPersonelSurname() {
    return this.personelSurname;
}

public void setPersonelSurname(String personelSurname) {
    this.personelSurname = personelSurname;
}

boolean editable;

public boolean isEditable() {
    return editable;
}

public void setEditable(boolean editable) {
    this.editable = editable;
}

}

<h:form>
        <h:panelGrid columns="2">
            <f:facet name="Personel Register Form"/>
            <h:outputLabel value="NAME: "/>
            <h:inputText value="#{personelMB.personelname}"/>

            <h:outputLabel value="SURNAME: "/>
            <h:inputText value="#{personelMB.personelsurname}"/>
            <h:commandButton value="Reset" type="reset"/>
            <h:commandButton value="Save" type="submit"  action="#{personelMB.addRecord()}"/>
        </h:panelGrid>
        <h:commandLink value="List All Personels" action="listallpersonels.xhtml"/>
    </h:form>

我的ListallPersonels.xhtml；

<h:form>
    <h:dataTable value="#{personelMB.getAllPersonelsFromDatabase()}" var="p" >
        <h:column>
            <f:facet name="header">NAME</f:facet>
            <h:inputText value="#{p.personelName}" rendered="#{p.editable}" size="15"/>
            <h:outputText value="#{p.personelName}" rendered="#{not p.editable}"/>

        </h:column>

        <h:column>
            <f:facet name="header">SURNAME</f:facet>
            <h:outputText value="#{p.personelSurname}" rendered="#{not p.editable}"/>
            <h:inputText value="#{p.personelSurname}" rendered="#{p.editable}" size="15" />
        </h:column>

        <h:column>
            <f:facet name="header">DELETE</f:facet>
            <h:commandLink value="Delete" action="#{personelMB.deleteRecord(p)}"/>
        </h:column>

        <h:column>
            <f:facet name="header">EDIT</f:facet>
            <h:commandLink value="Edit" action="#{personelMB.editRecord(p)}" 
                                     rendered="#{not p.editable}"/>

            <h:commandButton value="Save Alteration" action="#{personelMB.saveAlteration(p)}"
                                     rendered="#{p.editable}" />
        </h:column>

    </h:dataTable>
</h:form>

Answer 1

你应该看看primefaces,它有一些特征。你应该找到一些答案来回答你的问题。

http://www.primefaces.org/showcase/ui/data/datatable/edit.xhtml

然后试试这样的方法

<p:dataTable value="#{personelMB.getAllPersonelsFromDatabase()}" var="p" editable="true" editMode="cell" widgetVar="cellP">