未設置JSF SessionScoped屬性

Question

我正在使用SessionScoped bean存儲我從使用JPA的ClientService撤回的Client對象。 加載網頁時，我傳遞了GET Id參數來檢索正確的Client對象。 一切都很好，但是當我也嘗試編輯Client對象屬性時，由於某種原因它沒有改變。

這是我的代碼：

查看：

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


        <body>

            <ui:composition template="./../../WEB-INF/templates/master.xhtml">

                <ui:define name="functions">
                    <li><h:link outcome="clients/overview"><i class="icon-chevron-right"></i> <h:outputText value="#{trans['sidebar.links.overview']}" /> </h:link></li> 
                </ui:define>

                <ui:define name="page-header">
                    Edit - Clients
                </ui:define>

                <ui:define name="content">

                    <f:metadata>
                        <f:viewParam name="id" value="#{editClientBean.id}" required="false"/>
                        <f:event type="preRenderComponent" listener="#{editClientBean.findClient()}"/>
                    </f:metadata>


                    <h:form class="form-horizontal">
                        <div class="control-group">
                            <label class="control-label" for="inputEmail">Firstname</label>
                            <div class="controls">
                                <h:inputText  value="#{editClientBean.client.firstname}" />
                            </div>
                        </div>
                        <div class="control-group">
                            <label class="control-label" for="inputPassword">Lastname</label>
                            <div class="controls">
                                <h:inputText value ="#{editClientBean.client.lastname}" />
                            </div>
                        </div>
                        <div class="control-group">
                            <label class="control-label" for="inputPassword">Birthdate</label>
                            <div class="controls">
                                <h:inputText value ="#{editClientBean.client.dateToString()}" />
                            </div>
                        </div>
                        <div class="control-group">
                            <label class="control-label" for="inputPassword">City</label>
                            <div class="controls">
                                <h:inputText value ="#{editClientBean.client.city}" />
                            </div>
                        </div>
                        <div class="control-group">
                            <label class="control-label" for="inputPassword">Address</label>
                            <div class="controls">
                                <h:inputText value ="#{editClientBean.client.address}" />
                            </div>
                        </div>
                        <div class="control-group">
                            <label class="control-label" for="inputPassword">Zip</label>
                            <div class="controls">
                                <h:inputText value ="#{editClientBean.client.zipcode}" />
                            </div>
                        </div>
                        <div class="control-group">
                            <label class="control-label" for="inputPassword">Info</label>
                            <div class="controls">
                                <h:inputText value ="#{editClientBean.client.info}" />
                            </div>
                        </div>
                        <div class="control-group">
                            <label class="control-label" for="inputPassword">Info</label>
                            <div class="controls">
                                <h:inputText value ="#{editClientBean.client.info}" />
                            </div>
                        </div>
                        <div class="control-group">
                            <label class="control-label" for="inputPassword">Email</label>
                            <div class="controls">
                                <h:inputText value ="#{editClientBean.client.email}" />
                            </div>
                        </div>
                        <div class="control-group">
                            <label class="control-label" for="inputPassword">Password</label>
                            <div class="controls">
                                <h:inputSecret value="#{editClientBean.client.password}" />
                            </div>
                        </div>
                        <div class="control-group">
                            <label class="control-label" for="inputPassword">Cartrack ID(s)</label>
                            <div class="controls">

                            </div>
                        </div>

                        <div class="control-group">
                            <div class="controls">

                                <h:commandButton  value="Change" >
                                    <f:ajax listener="#{editClientBean.edit}" />
                                </h:commandButton>
                            </div>
                        </div>

                    </h:form>

                </ui:define>

            </ui:composition>

        </body>
    </html>

豆角，扁豆：

package Beans;

import Entities.Cartrack;
import Entities.Client;
import Services.CarTrackService;
import Services.ClientService;
import java.io.Serializable;
import java.util.List;
import javax.enterprise.context.SessionScoped;
import javax.inject.Inject;
import javax.inject.Named;

/**
 *
 * @author Roel
 */
@Named
@SessionScoped
public class EditClientBean implements Serializable {

    @Inject
    private ClientService clientService;
    @Inject 
    private CarTrackService cartrackService;
    private Client client;
    private Long id;

    public Long getId() {
        return id;
    }

    public void setId(Long id) {
        this.id = id;
    }

    public void findClient(){
        this.client = this.clientService.Find(this.id);
    }

    /**
     * @return the client
     */
    public Client getClient() {
        return client;
    }

    /**
     * @param client the client to set
     */
    public void setClient(Client client) {
        this.client = client;
    }

    public List<Cartrack> getCarTracks(){
        return this.cartrackService.FindAll();
    }

    public void edit(){
        System.out.println(this.client.getFirstname());
        System.out.println(this.client.getCartracks().size());


        //this.clientService.Edit(this.client);
    }
}

Answer 1

除非在execute屬性中明確命名了已編輯的表單值，否則它們不會在啟用Ajax的commandButton上提交。 嘗試添加以下內容：

<h:commandButton  value="Change" >
  <f:ajax execute="@form" render="@form" listener="#{editClientBean.edit}" />
</h:commandButton>

@form是execute和render屬性中的保留關鍵字，用於指示Ajax表單提交包括表單命名容器和該表單中的所有子級。 您指定要提交所有要應用於模型的表單值，然后在render屬性中指示服務器端處理后重新呈現所有表單元素。

未設置JSF SessionScoped屬性

問題描述

1 個解決方案

解決方案1
0 已采納 2013-04-15 11:38:46

未設置JSF SessionScoped屬性

問題描述

1 個解決方案

解決方案1 0 已采納 2013-04-15 11:38:46

解決方案1
0 已采納 2013-04-15 11:38:46