jsf - primefaces 中延迟加载的分页无法正常工作

Question

我在数据表中遇到延迟加载问题，但不知道问题出在哪里，这是我的 xhtml 页面代码:

 <f:view xmlns="http://www.w3.org/1999/xhtml"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:ui="http://java.sun.com/jsf/facelets"
xmlns:p="http://primefaces.org/ui">
<h:head>
    <title>Application</title>
</h:head>
<h:body>
    <h:form>
        <h:panelGrid columns="2">
          <h:outputLabel value="Element per page"/>
          <p:selectOneMenu value="#{applicationManagementListBean.pageSize}">
              <f:selectItem itemLabel="5" itemValue="5"/>
              <f:selectItem itemLabel="10" itemValue="10"/>
              <f:selectItem itemLabel="30" itemValue="30"/>
              <f:selectItem itemLabel="50" itemValue="50"/>
              <p:ajax event="change" update="applicationDataList"/>
          </p:selectOneMenu>
        </h:panelGrid>
        <p:commandButton value="New application"
            action="inscription.xhtml?faces-redirect=true" ajax="false" />
        <p:dataTable id="applicationDataList" value="#{applicationManagementListBean.applications}"
            var="app" paginator="true"
            rows="#{applicationManagementListBean.pageSize}" lazy="true"
            paginatorTemplate="{CurrentPageReport}  {FirstPageLink} {PreviousPageLink} {PageLinks} {NextPageLink} {LastPageLink} {RowsPerPageDropdown}">


            <p:column headerText="Code">
                <h:outputText value="#{app.code}" />
            </p:column>

            <p:column headerText="Name">
                <h:outputText value="#{app.name}" />
            </p:column>

            <p:column headerText="Abreviate name">
                <h:outputText value="#{app.abrevName}" />
            </p:column>

            <p:column headerText="Status">
                <h:outputText value="#{app.status.description}" />
            </p:column>


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

</h:body>
     </f:view>

和 bean 代码:

@ManagedBean
@ViewScoped
public class ApplicationManagementListBean implements Serializable {

    private static final long serialVersionUID = 1L;

    @ManagedProperty(value = "#{applicationManagementService}")
    public ApplicationManagementRemote applicationManagementService;

    private Integer pageSize = 3;
    private DataProxyLazyDataModel data;

    public void setApplicationManagementService(
            ApplicationManagementRemote applicationManagementService) {
        this.applicationManagementService = applicationManagementService;
    }

    public LazyDataModel<Object> getApplications() {
        data = new DataProxyLazyDataModel(applicationManagementService);
        data.setPageSize(pageSize);
        return data;
    }

    public Integer getPageSize() {
        return pageSize;
    }

    public void setPageSize(Integer pageSize) {
        this.pageSize = pageSize;
    }

    public DataProxyLazyDataModel getData() {
        return data;
    }

    public void setData(DataProxyLazyDataModel data) {
        this.data = data;
    }

  }

当我点击下一页按钮时没有任何反应

请帮忙多谢最好的问候，拉希德

primegaces 3.4.2，liferay门户6.1，eclipse

Answer 1

尝试将 setRowCount() 添加到您的 lazyDataModel 中。

例如:

lazyDataModel.setRowCount(rows);

其中行代表数据库中要在DataTable 中显示的总记录。在您的情况下，代码是:

data.setRowCount(rows);