无法通过h:inputtext在bean中设置值

Question

我已经创建了一个JSF页面和一个具有视图作用域的bean。我无法通过<h:textarea>设置bean中的值。下面是我的代码(Bean和XHTML)

Bean类:

@ManagedBean
@ViewScoped
//@SessionScoped
public class ItemDetailsBean {
    private CmsItemEJBDTO item;
    private CmsItemEJBDTO detailItem;
    private CmsCartEJB cart;
    private int quantity;
    private int itemId;
    private  boolean question = false;
    private String userItemQuery;
    public ItemDetailsBean() {
        itemId = 0;
        quantity = 1;
    }
    @EJB
    private ShopManagerRemote shopManager;
    @ManagedProperty(value="#{loginBean}")
    private LoginBean login;
    @ManagedProperty(value="#{shoppingCart}")
    private ShoppingCart shoppingCart;
    @PostConstruct
    public void init(){
        if(login.getProfile()!=null){
            question=true;
        }else{  
            question=false;
        }   
    }
    public String getUserItemQuery() {
        System.out.println("getUserItemQuery  => "+userItemQuery);
        return userItemQuery;
    }
    public void setUserItemQuery(String userItemQuery) {
        System.out.println("setUserItemQuery(String userItemQuery)  => "+userItemQuery);
        this.userItemQuery = userItemQuery;
    }
    public void submitItemQuestion(){
        try{
            System.out.println("Queston:::::::  " + userItemQuery);
            if(userItemQuery!=null){
            shopManager.saveItemQuestion(shoppingCart.getShop().getShopId(), itemId, login.getProfile(), userItemQuery);
            }else{
                System.out.println("UserItemQuery is null............");
            }
        }catch(Exception e){
            System.out.println("Exception while submitting item question");
            e.printStackTrace();
        }       
    }
    public boolean isQuestion() {
        System.out.println("question in isQuestion()  = "+ question);
        return question;
    }
    public void setQuestion(boolean question) {
        System.out.println("question in setQuestion(boolean question)  = "+ question);
        this.question = question;
    }



}

XHTML代码:

<div class="category-tab shop-details-tab"><!--category-tab-->
                        <div class="col-sm-12">
                            <ul class="nav nav-tabs">
                                <li class="active"><a href="#details" data-toggle="tab">Ask Question</a></li>
                            </ul>
                                    <h:commandButton action="#{itemDetailsBean.askItemQuestionListner}" value="Ask Question" id="dialogbtn" styleClass="btn btn-primary btn-detault" style="float:right;" >
                                      <f:param name="itemId" value="#{itemDetailsBean.itemId}"></f:param>
                                      <f:param name="question" value="true"></f:param>
                                      <f:ajax execute="@this" update= "question" />
                                    </h:commandButton>
                        </div>
                                <h:panelGroup>
                                <p:panel rendered="#{itemDetailsBean.question}">
                                <div class="col-sm-7" id="question">
                                 <h1>Enter Your Questions Here!!!</h1>
                                 <h:inputTextarea value="#{itemDetailsBean.userItemQuery}" />
                                  <h:commandButton styleClass="btn btn-primary btn-detault" value="Submit Answer"  >
                                     <f:param name="itemId" value="#{itemDetailsBean.itemId}"></f:param>
                                     <f:ajax execute="@this" render="@form" listener="#{itemDetailsBean.submitItemQuestion()}" ></f:ajax>
                                  </h:commandButton>

                                </div>
                            </p:panel>
                            </h:panelGroup>
                    </div>

textarea标签总是调用getUserItemQuery()方法。请帮我想一下。

Answer 1

将inputTextArea和commandButton包裹在表单中。

<h:form>
    <h:inputTextarea value="#{itemDetailsBean.userItemQuery}" />
    <h:commandButton styleClass="btn btn-primary btn-detault" value="Submit Answer"  >
                                 <f:param name="itemId" value="#{itemDetailsBean.itemId}"></f:param>
                                 <f:ajax execute="@form" render="@form" listener="#{itemDetailsBean.submitItemQuestion()}" ></f:ajax>
    </h:commandButton>
</h:form>