0

我在搜索表单中遇到了一点问题，因为我在搜索字段中输入的所有数据都以空值传递给我的 java 代码。我是 jsf2 的新手。

这是我的 xhtml 页面，格式如下：

<h:form>
    <ul>
        <li>
            <h:outputLabel for="equipmentName" value="#{bundle.NomeEquipamento_Title}"/>
            <h:inputText value="#{materialController.selected.equipmentName}" class="w_130" id="equipmentName" required="false" validatorMessage="#{bundle.NomeEquipamento_Title} inválido."/>
        </li>
        <li>
            <h:outputLabel for="channelCode" value="#{bundle.CodigoCanal_Title}"/>
            <h:inputText value="#{materialController.selected.channelCode}" class="w_80" id="channelCode" required="false" validatorMessage="#{bundle.CodigoCanal_Title} inválido."/>
        </li>
        <li><h:commandButton type="reset" class="bt_limpar button29" style="margin-top:13px;"><span class="screen_reader_text">Limpar</span></h:commandButton></li>
        <li><h:commandLink action="#{materialController.pesquisa}" class="bt_pesquisar button29" style="margin-top:13px;" immediate="true"><span class="screen_reader_text">Pesquisar</span></h:commandLink></li>
    </ul>
</h:form>

这是我的 DTO，具有两个属性“设备名称”和“通道代码”：

public class SearchCommercialsDTO implements Serializable{

    private String equipmentName;
    private Integer channelCode;

   /**
    * Default constructor
    */
    public SearchCommercialsDTO() {}

    /**
     * Constructor
     * @param equipmentName
     * @param channelCode 
     */
    public SearchCommercialsDTO(String equipmentName, Integer channelCode) {
        this.equipmentName = equipmentName;
        this.channelCode = channelCode;
    }
    public String getEquipmentName() {
        return equipmentName;
    }

    public void setEquipmentName(String equipmentName) {
        this.equipmentName = equipmentName;
    }

    public Integer getChannelCode() {
        return channelCode;
    }

    public void setChannelCode(Integer channelCode) {
        this.channelCode = channelCode;
    }
}

这是我的管理豆：

@ManagedBean(name = "materialController")
@SessionScoped
public class MaterialController implements Serializable {

    private SearchCommercialsDTO current;
    private int selectedItemIndex;

    public MaterialController() {
    }

    public SearchCommercialsDTO getSelected() {
        if (current == null) {
            current = new SearchCommercialsDTO();
            selectedItemIndex = -1;
        }
        return current;
    }

    public String pesquisa() {
        try{
            getFacade().find(current);
            JsfHelper.addSuccessMessage(ResourceBundle.getBundle("/Bundle").getString("PesquisaRealizada"));
            return preparaPesquisa();
        } catch (Exception e) {
            JsfHelper.addErrorMessage(e, ResourceBundle.getBundle("/Bundle").getString("PersistenceErrorOccured"));
            return null;
        }
    }
}

当我单击“Pesquisar”按钮时，会发布帖子，但“SearchCommercialsDTO”属性“current”会与所有属性值“null”一起传递，即使我在输入文本字段中键入了一些内容。

我的代码中缺少什么？

谢谢！

4

2 回答 2

0

尝试改变getSelectedMethod()。

将属性添加selected到ManagedBean

private SearchCommercialsDTO selected;
// getter and setter for selected attribute

将实际getSelectedMethod()身体移动到actionListener

public void getSelectedActionListener(ActionEvent e) {
    if (current == null) {
        current = new SearchCommercialsDTO();
        selectedItemIndex = -1;
    }
}

将此代码添加到您的视图中

<h:commandLink action="#{materialController.pesquisa}" actionListener="#{materialController.selectedActionListener}" ...>...</h:commandLink></li>

那些改动之后actionListener才会被激发起来action。

于 2013-03-15T13:47:24.917 回答
0

尝试从您的 commandLink 中删除 immediate="true"

于 2013-03-15T13:50:56.397 回答