JTree实例
private void createTreeByXdDdt() {
DefaultComboBoxModel boxModel = (DefaultComboBoxModel) cmbXdDdt.getModel();
XdDdt xdDdt = (XdDdt) boxModel.getSelectedItem(); // 得到选中的调度台对象；
DefaultMutableTreeNode root = new DefaultMutableTreeNode(xdDdt);
List<PLthDes> pLthDesList = getPLthDesListByLthid(xdDdt.getLth()); // 根据调度台获得p_lth_des对象集合
for (PLthDes pLthDes : pLthDesList) {
DefaultMutableTreeNode pLthDesNode = new DefaultMutableTreeNode(pLthDes);
List<PThNode> pThNodes = getPThNodesByIds(pLthDes.getLthid(),pLthDes.getThid()); // 根据p_lth_des获得p_th_node对象集合
for (PThNode pThNode : pThNodes) {
DefaultMutableTreeNode pThNodeTreeNode = new DefaultMutableTreeNode(pThNode);
pLthDesNode.add(pThNodeTreeNode);
}
root.add(pLthDesNode);
}
DefaultTreeModel treeModel = new DefaultTreeModel(root);
treeModel.addTreeModelListener(new TreeModelListener() {
@Override
public void treeStructureChanged(TreeModelEvent e) {
}
@Override
public void treeNodesRemoved(TreeModelEvent e) {
}
@Override
public void treeNodesInserted(TreeModelEvent e) {
}
@Override
public void treeNodesChanged(TreeModelEvent e) {
DefaultMutableTreeNode treeNode;
TreePath treePath = tree.getSelectionPath();
if(treePath!=null){
treeNode = (DefaultMutableTreeNode) treePath.getLastPathComponent();
Object userObject = treeNode.getUserObject();
System.out.println("TreeModelListener->"+userObject.getClass());
}else{
System.out.println("TreeModelListener->"+"treePath is null");
}
}
});
tree.setModel(treeModel); // 设置树的model
tree.setCellRenderer(new TreeRender()); // 设置树的渲染
tree.getSelectionModel().setSelectionMode(TreeSelectionModel.SINGLE_TREE_SELECTION);
MouseListener[] mouseListeners = tree.getMouseListeners();
System.out.println("mouseListeners:"+mouseListeners.length);
tree.addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent e) {
DefaultMutableTreeNode treeNode;
// TreePath treePath = tree.getPathForLocation(e.getX(), e.getY()); // 这样的话，第二次不选中就会是null
TreePath treePath = tree.getSelectionPath(); // 这样的话，第二次不选中也会触发事件；
if(treePath!=null){
treeNode = (DefaultMutableTreeNode) treePath.getLastPathComponent();
Object userObject = treeNode.getUserObject();
System.out.println("MouseClick->"+userObject.getClass());
if(userObject instanceof PLthDes){
PLthDes pLthDes = (PLthDes) userObject;
System.out.println("MouseClick->"+pLthDes.getLthid()+":"+pLthDes.getThid());
}
}else{
System.out.println("MouseClick->"+"treePath is null");
}
}
});
MouseListener[] mouseListeners2 = tree.getMouseListeners();
System.out.println("mouseListeners2:"+mouseListeners2.length);
TreeSelectionListener[] listeners = tree.getTreeSelectionListeners();
System.out.println("TreeSelectionListener:"+listeners.length);
tree.addTreeSelectionListener(new TreeSelectionListener() {
@Override
public void valueChanged(TreeSelectionEvent e) {
DefaultMutableTreeNode treeNode;
TreePath treePath = tree.getSelectionPath();
if(treePath!=null){
treeNode = (DefaultMutableTreeNode) treePath.getLastPathComponent();
Object userObject = treeNode.getUserObject();
System.out.println("TreeSelectionListener->"+userObject.getClass());
}else{
System.out.println("TreeSelectionListener->"+"treePath is null");
}
}
});
TreeSelectionListener[] listeners2 = tree.getTreeSelectionListeners();
System.out.println("TreeSelectionListener2:"+listeners2.length);
}