小试 ZK

 近日 ，研究 ZK 的CRUD ，一切都是开发工具生成的，第一次是在 Eclipse 3.4下，因为Tomcat 6 的某种原因转到了Myeclipse 7_0，噩梦开始了，开始是少包，导入了 commons-pool-1.4.jar ,接着又是因为Myeclipse 7_0 的web-flow  1.0的，而zk已经支持到web-flow2.x,不能说是ZK的错，再下载导入，后来又是spring-security 包不全，再下载导入。还是不行，这过程中提示spring ApplicationContext listener 出错，我晕了,无奈，再去检查各种配置文件，找到了问题， 工具生成 的
 <param-value>class:/config/application-context.xm>,不能理解这是哪个新版本的类支持的简写，改为
 <param- value>WEB-INF/classes/config/application-context.xml>,还有几个地方。发布，重启服务器，还是不行，什么orders property , 莫名的错误。换到ECLIPSE 3.4下，简单调试后，报的错为idscope null ,上GOOGLE G一把，新版本3.61就是报这个错，没办法，换到3.60吧，接下来，就什么问题，但是插入时如果把主键设为自动生成，出错，暂未解决。

 

 

public abstract class OrdersControllerBase {/****** Field Edit Components *******/@Resourceprotected Intbox ordernumber;@Resourceprotected Datebox orderdate;@Resourceprotected Datebox requireddate;@Resourceprotected Datebox shippeddate;@Resourceprotected Textbox status;@Resourceprotected Textbox comments;@Resourceprotected Intbox customernumber;/****** Zul Specific Application Control *******///main control window@Resourceprotected Window ordersWin; //main window@Resourceprotected Listbox ordersDataListView; //domain object summary list@Resourceprotected Paging ordersPaging; //paging control for summary list@Resourceprotected Component ordersDetail; //domain object detail@Resourceprotected Component ordersEdit; //edit panel//buttons@Resourceprotected Button ordersCreate; //new button@Resourceprotected Button ordersUpdate; //edit button@Resourceprotected Button ordersDelete; //delete button@Resourceprotected Button ordersSave; //save button@Resourceprotected Button ordersCancel; //cancel button/****** Bean Field Edit Components *******/protected Orders _tmpSelected; //store original selected entity/****** Controller state Fields *******///ZK databinderprotected DataBinder binder;//Orders Model@Resourceprotected OrdersModelBase ordersModel = null;//operation transient stateprotected boolean _create; //when new a entityprotected boolean _editMode; //switch to edit mode when doing editing(new/update)protected int _lastSelectedIndex = -1; //last selectedIndex before deleteprotected boolean _supportPaging = true; //switch to use Pagingprotected boolean _supportFilter = true; //TODO: switch to use Filterprotected String _filter; //filterspublic OrdersControllerBase(){}@AfterComposepublic void afterCompose() { //initial to read one record so binder.loadAll() will not trigger unnecessary SQL //The ordersWin.onClientInfo will load correct linesif (isSupportPaging()) {ordersModel.setMaxResults(1);}binder = new AnnotateDataBinder(ordersWin);ordersWin.setVariable("ordersBinder", binder, true);binder.loadAll();final List model = (List) ordersDataListView.getModel(); if (!model.isEmpty()) {ordersModel.setSelected((Orders)model.get(0));binder.loadComponent(ordersDetail);}setFocus();}public boolean isSupportPaging() {return _supportPaging;}public boolean isSupportFilter() {return _supportFilter;}public boolean isSupportExtra() {return isSupportFilter() || isSupportPaging();}public void setFilter(String filter) {_filter = filter;}public String getFilter() {return _filter;}@Resourceprotected Button ordersQuery;@EventHandler("ordersQuery.onClick")public void doFilter(){if (Strings.isBlank(_filter)) {ordersModel.setWhere(null);ordersModel.setParameters(null);} else {//TODO:shall process filter string into JPQL where statement hereprepareQueryConditions();}refreshModel();}protected void prepareQueryConditions(){ordersModel.setWhere(" status LIKE :status OR comments LIKE :comments");final Map params = new HashMap();params.put("status", "%"+_filter+"%");params.put("comments", "%"+_filter+"%");ordersModel.setParameters(params);}public OrdersModelBase getModel() {return ordersModel;}public void setModel(OrdersModelBase ordersModel) {this.ordersModel = ordersModel;}public void refreshModel() {binder.loadAttribute(ordersDataListView, "model"); //reload model to force refresh}//-- view/edit mode --//public void setEditMode(boolean b) {_editMode = b;switchMode();}public boolean isViewMode() {return !_editMode;}public boolean isEditMode() {return _editMode; }public boolean isCreate() {return _create;}public boolean isNotSelected() {return this.ordersModel.getSelected() == null;}private void switchMode() {binder.loadComponent(ordersDetail); //reload visible to force refreshsetFocus();}private void setFocus() {//post event so doSetFocus after the listbox is loaded readyEvents.postEvent(new Event("onSetFocus", ordersWin));}@EventHandler("ordersWin.onSetFocus")public void doSetFocus() {if (_editMode) {ordernumber.focus();} else {if (((List)ordersDataListView.getModel()).isEmpty()) {//no result in list, focus on new buttonordersCreate.focus();} else {if (_create) {ordersCreate.focus();} else {setListFocus();}}}}private void setListFocus() {final Listitem li = ordersDataListView.getSelectedItem();if (li != null) {li.focus();} else {if (ordersModel.getSelected() != null) {ordersCreate.focus();} else {ordersCreate.focus();}}}@EventHandler("ordersWin.onOK")public void doOK(Event event) {if (isEditMode()) {doSave(event);} else {doUpdate(event);}}@EventHandler("ordersWin.onClientInfo")public void doClientInfo(Event event) {if (isSupportPaging()) {final ClientInfoEvent evt = (ClientInfoEvent) event;int height = evt.getDesktopHeight();int pageSize = Math.max((height - 130) / 14, 10); //estimated page size, at least 10int currentPageSize = ordersModel.getMaxResults(); if (currentPageSize != pageSize) {ordersModel.setMaxResults(pageSize);final int inviewIndex = ordersDataListView.getSelectedIndex() < 0 ? ordersModel.getOffset() : (ordersModel.getOffset() + ordersDataListView.getSelectedIndex()); final int activePage = inviewIndex / pageSize; //new active pagefinal int offset = activePage * pageSize;ordersModel.setOffset(offset);refreshModel();ordersPaging.setPageSize(pageSize);ordersPaging.setActivePage(activePage);setFocus();}}}@EventHandler("ordersPaging.onPaging")public void doPaging(Event event) {if (isSupportPaging()) {final int activePage = ordersPaging.getActivePage();final int offset = activePage * ordersPaging.getPageSize();ordersModel.setOffset(offset);refreshModel();setFocus();}}//-- ordersDataListView control --//@EventHandler("ordersDataListView.onSelect")public void doSelect(Event event) {final int index = ordersDataListView.getSelectedIndex();if (index >= 0) {_lastSelectedIndex = index;_create = false;}}//-- view mode control --//@EventHandler("ordersWin.onCtrlKey")public void doCtrlKey(Event event) {final List items = ordersDataListView.getItems(); if (!items.isEmpty() && (!_editMode || !_create)) {final int keycode = ((KeyEvent) event).getKeyCode();if (keycode == KeyEvent.DOWN || keycode == KeyEvent.UP){//handle no selected item caseif (ordersDataListView.getSelectedIndex() < 0) { //no selected item//try our best to guess oneif (_lastSelectedIndex >= 0) {final int index = Math.min(items.size() - 1, _lastSelectedIndex);ordersDataListView.setSelectedIndex(index);Events.sendEvent(new SelectEvent("onSelect", ordersDataListView, ordersDataListView.getSelectedItems()));}}setListFocus();}}}@EventHandler("ordersCreate.onClick")public void doCreate(Event event) {if (isViewMode()) {//prepare a new Orders_tmpSelected = ordersModel.getSelected();_create = true;ordersModel.setSelected(new Orders());//switch to edit modesetEditMode(true);}}@EventHandler("ordersUpdate.onClick")public void doUpdate(Event event) {if (isViewMode()) {if (ordersModel.getSelected() != null) {_create = false;//switch to edit modesetEditMode(true);}}}@EventHandler("ordersDelete.onClick")public void doDelete(Event event) {if (isViewMode()) {if (ordersModel.getSelected() != null) {_create = false;newConfirmDelete().show();}}}@EventHandler("ordersDelete.onDeleteYes")public void doDeleteYes(Event event) {if (isViewMode()) {beforeDelete();try {ordersModel.delete();ordersCreate.focus();} catch (EntityNotFoundException e) { //ignore, already deleted by others}ordersModel.setSelected(null);//refresh the todoListrefreshModel();//update the ordersDetailswitchMode();}}//-- sorting --//public void doSort(Event event) {final Listheader lh = (Listheader) event.getTarget();final String sortDirection = lh.getSortDirection(); //original directionif ("ascending".equals(sortDirection)) {final Comparator cmpr = lh.getSortDescending();if (cmpr instanceof FieldComparator) {final String orderBy = ((FieldComparator)cmpr).getOrderBy();ordersModel.setOrderBy(orderBy); //update query string}} else if ("descending".equals(sortDirection) || "natural".equals(sortDirection) || Strings.isBlank(sortDirection)) {final Comparator cmpr = lh.getSortAscending();if (cmpr instanceof FieldComparator) {final String orderBy = ((FieldComparator)cmpr).getOrderBy();ordersModel.setOrderBy(orderBy); //update query string}}if (isSupportPaging()) {refreshModel();}setFocus();}//-- edit mode control --//@EventHandler("ordersSave.onClick")public void doSave(Event event) {if (isEditMode()) {//validatevalidate();//save into ordersbinder.saveComponent(ordersEdit); //reload model to force refresh//store into dbif (_create) {beforeCreate();this.ordersModel.persist();} else {beforeUpdate();try {this.ordersModel.merge();} catch (EntityNotFoundException e1) {try {Messagebox.show(getUpdateDeletedMessage());} catch (InterruptedException e2) {//ignore}}}//refresh the todoListrefreshModel();//switch to view modesetEditMode(false);}}@EventHandler("ordersCancel.onClick,ordersWin.onCancel")public void doCancel(Event event) {if (isEditMode()) {//restore to original selected Orders if cancel from newif (_create) {ordersModel.setSelected(_tmpSelected);_tmpSelected = null;}//switch to view modesetEditMode(false);}}//--To be override--// /** Validate the input field */protected void validate() {ordernumber.getValue();orderdate.getValue();requireddate.getValue();status.getValue();customernumber.getValue();}/** The info message when end user trying to update a "deleted" entity. */protected String getUpdateDeletedMessage() {return "Cannot find the selected item, might have been deleted by others.";}/** Get a instance of ConfirmDelete class */protected ConfirmDelete newConfirmDelete() {return new ConfirmDelete();}/** Delete Confirmation */protected class ConfirmDelete {/** Show the ConfirmDelete Messagebox */public void show() {try {Messagebox.show(getConfirmMessage(), getConfirmTitle(), Messagebox.YES+Messagebox.NO, Messagebox.EXCLAMATION, new org.zkoss.zk.ui.event.EventListener() {public void onEvent(Event event) {if ("onYes".equals(event.getName())) {doYes();}}});} catch (InterruptedException ex) {//ignore}}/** Operation when end user click Yes button in confirm delete Messagebox*/public void doYes() {//have to send Event to change the current IdSpace to "ordersWin" Events.sendEvent(new Event("onDeleteYes", ordersDelete));}}protected String getConfirmMessage(){return "Are you sure?";}protected String getConfirmTitle(){return "Are you sure you want to delete the selected item?";}protected void beforeCreate(){}protected void beforeUpdate(){}protected void beforeDelete(){}}