我一直在这里搜索,找到了这个问题的答案,但似乎无法让他们为我工作。 Basicly我有一个包含一个JScrollPane内JTree中GUI:JTree与DefaultTreeModel,如何加载后可视化刷新?
private void initComponents() {
scroll = new javax.swing.JScrollPane();
nodo padre = new nodo();
modeloArbol modelo = new modeloArbol(padre);
arbol = new arbolNodos(modelo);
我有以下类:
public class arbolNodos extends JTree implements Serializable{
public arbolNodos(TreeModel newModel) {
public class listenerModeloArbol implements TreeModelListener{
//Overriding treeNodes*(TreeModelEvent e)
public class modeloArbol extends DefaultTreeModel implements Serializable{
public modeloArbol(TreeNode root) {
super(root);
}
public class nodo extends DefaultMutableTreeNode implements Serializable{
我还具有存储2个按钮(botonGuardarArbol)和检索(botonCargarArbol)使用所述XMLEncoder JTree的(他们真的检索树的根节点)到一个文件中与相应的actionPerformed监听器:
private void botonGuardarArbolActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
try {
XMLEncoder encoder = new XMLEncoder(new BufferedOutputStream(new FileOutputStream("C:\\borrar\\presupuesto")));
encoder.writeObject(arbol.getModel().getRoot());
encoder.close();
private void botonCargarArbolActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
try {
XMLDecoder decoder = new XMLDecoder(new BufferedInputStream(new FileInputStream("C:\\borrar\\presupuesto")));
nodo padre = (nodo) decoder.readObject();
modeloArbol modelo = new modeloArbol(padre);
decoder.close();
modelo.setRoot(padre);
arbolNodos arbolNuevo = null;
if(modelo != null){
arbolNuevo = new arbolNodos(modelo);
arbol = null;
arbol = arbolNuevo;
((DefaultTreeModel)arbol.getModel()).reload();
}
else
arbolNuevo = new arbolNodos();
的事情是,当我找回存储的JTree,我知道它很好的检索,因为我尝试在树的所有节点内打印属性,并且它们都可以,但是当我尝试在Swing中放置它时,它不会刷新并且视图块(即。我无法在加载之前在JTree中操作任何东西)。我已经尝试了刷新/更新JTree的无数线程,但无法修复它。我怎样才能做到这一点?
谢谢
请学习java的命名约定并坚持到他们 – kleopatra