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技术 2022年11月19日
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前台Tree.zul

<?page title="Tree使用" contentType="text/html;charset=UTF-8"?>
<zk xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://www.zkoss.org/2005/zul"
xsi:schemaLocation="http://www.zkoss.org/2005/zul http://www.zkoss.org/2005/zul">
<window title="" border="normal" apply="test.treeCtrl">
<tree id="tree" pageSize="10" mold="paging" rows="10" >
<treecols>
<treecol label="Name"/>
<treecol label="Description"/>
</treecols>
<treefoot>
<treefooter label="底部"/>
</treefoot>
</tree>
</window>
</zk>

后台treeCtrl.java:

package test;import java.util.ArrayList;
import java.util.List;import org.zkoss.zk.ui.Component;
import org.zkoss.zk.ui.util.GenericAutowireComposer;
import org.zkoss.zul.DefaultTreeModel;
import org.zkoss.zul.DefaultTreeNode;
import org.zkoss.zul.Tree;
import org.zkoss.zul.Treecell;
import org.zkoss.zul.Treeitem;
import org.zkoss.zul.TreeitemRenderer;
import org.zkoss.zul.Treerow;public class treeCtrl extends GenericAutowireComposer<Component>{ private static final long serialVersionUID = 1L;
private Tree tree; @Override
public void doAfterCompose(Component comp) throws Exception {
// TODO Auto-generated method stub super.doAfterCompose(comp); DefaultTreeModel<FileInfo> model = new DefaultTreeModel<FileInfo>(getFileInfoTreeData());
tree.setModel(model);
tree.setItemRenderer(new FileInfoRenderer());
} private DefaultTreeNode<FileInfo> getFileInfoTreeData() {
List<DefaultTreeNode<FileInfo>> inner3 = new ArrayList<DefaultTreeNode<FileInfo>>();
inner3.add(new DefaultTreeNode<FileInfo>(new FileInfo("zcommon.jar", "ZK Common Library")));
inner3.add(new DefaultTreeNode<FileInfo>(new FileInfo("zk.jar", "ZK Core Library"))); List<DefaultTreeNode<FileInfo>> inner2 = new ArrayList<DefaultTreeNode<FileInfo>>();
inner2.add(new DefaultTreeNode<FileInfo>(new FileInfo("/lib", "ZK Libraries"), inner3));
inner2.add(new DefaultTreeNode<FileInfo>(new FileInfo("/src", "Source Code")));
inner2.add(new DefaultTreeNode<FileInfo>(new FileInfo("/xsd", "XSD Files"))); List<DefaultTreeNode<FileInfo>> inner1 = new ArrayList<DefaultTreeNode<FileInfo>>();
inner1.add(new DefaultTreeNode<FileInfo>(new FileInfo("/doc", "Release and License Notes")));
inner1.add(new DefaultTreeNode<FileInfo>(new FileInfo("/dist", "Distribution"), inner2)); return new DefaultTreeNode<FileInfo>(null, inner1);
} public class FileInfoRenderer implements TreeitemRenderer<DefaultTreeNode<FileInfo>>{ @Override
public void render(Treeitem item, DefaultTreeNode<FileInfo> data, int index)
throws Exception {
// TODO Auto-generated method stub item.setValue(data);
final FileInfo fi = data.getData();
item.setOpen(false);
//for update treeNode data
Treerow tr = item.getTreerow();
if(tr == null) {
tr = new Treerow();
} else {
tr.getChildren().clear();
}
item.appendChild(tr);
//render file path cell
Treecell pathCell = new Treecell();
pathCell.setLabel(fi.getPath());
pathCell.setParent(tr);
//render file description cell
Treecell descriptionCell = new Treecell();
descriptionCell.setLabel(fi.getDescription());
descriptionCell.setParent(tr);
} } public class FileInfo {
private String path;
private String description; public FileInfo() {} public FileInfo(String path, String description) {
this.path = path;
this.description = description;
} public String getPath() {
return path;
} public void setPath(String path) {
this.path = path;
} public String getDescription() {
return description;
} public void setDescription(String description) {
this.description = description;
}
}}

参考:

http://zkfiddle.org/sample/21g0stt/2-Another-new-ZK-fiddle#source-1

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