您可以使用LazyDataModel。在此示例中，我将使用NetBeans通过“从实体创建JSF CRUD页面”创建的BackBean和JpaController（BackBean必须为@SessionScoped）
private LazyDataModel<Car> lazyModel;
private int pageSize = 5;
public void setPageSize(int pageSize) {
this.pageSize = pageSize;
}
public int getPageSize() {
return pageSize;
public void LoadData() {
lazyModel = new LazyDataModel<Car>() {
@Override
public List<Car> load(int first, int pageSize, String sortField, boolean sortOrder, Map<String, String> filters) {
//Sorting and Filtering information are not used for demo purposes just random dummy data is returned
List<Car> result = new ArrayList<Car>();
try {
result = getJpaController().findCarEntities(pageSize, first);
} catch (Exception ex) {
JsfUtil.addErrorMessage(ex, search);
}
return result;
}
};
/**
* In a real application, this number should be resolved by a projection query
*/
lazyModel.setRowCount(getJpaController().getCarCount());
lazyModel.setPageSize(pageSize);
}
public LazyDataModel<Car> getLazyModel() {
return lazyModel;
}
我已经添加
lazyModel.setPageSize(pageSize);
因为除以0知道问题http://code.google.com/p/primefaces/issues/detail?id=1544
<p:dataTable var="item" value="#{controller.lazyModel}"
rows="#{controller.pageSize}" paginator="true"
paginatorTemplate="{CurrentPageReport} {FirstPageLink} {Prev@R_301_2396@sPageLink} {PageLinks} {NextPageLink} {LastPageLink} {RowsPerPageDropdown}"
rowsPerPageTemplate="9,12,15"
page=""
lazy="true"
dynamic="true"
id="pnlResult"
>
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