（从长远来看）使用可能更容易
SwingWorker。它提供了许多有用的方法来更新UI（从事件调度线程的上下文中），同时允许在后台继续执行…
import java.awt.BorderLayout;import java.awt.Dimension;import java.awt.EventQueue;import java.awt.GridBagLayout;import java.beans.PropertyChangeEvent;import java.beans.PropertyChangeListener;import java.util.List;import javax.swing.Jframe;import javax.swing.JPanel;import javax.swing.JProgressBar;import javax.swing.SwingWorker;import javax.swing.UIManager;import javax.swing.UnsupportedLookAndFeelException;public class TestSwingWorker02 { public static void main(String[] args) { new TestSwingWorker02(); } public TestSwingWorker02() { EventQueue.invokeLater(new Runnable() { @Override public void run() { try { UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName()); } catch (ClassNotFoundException ex) { } catch (InstantiationException ex) { } catch (IllegalAccessException ex) { } catch (UnsupportedLookAndFeelException ex) { } Jframe frame = new Jframe("Test"); frame.setDefaultCloseOperation(Jframe.EXIT_ON_CLOSE); frame.setLayout(new BorderLayout()); frame.add(new TestPane()); frame.pack(); frame.setLocationRelativeTo(null); frame.setVisible(true); } }); } public class TestPane extends JPanel { public TestPane() { setLayout(new GridBagLayout()); JProgressBar pb = new JProgressBar(); add(pb); new ProgressWorker(pb, 40).execute(); } @Override public Dimension getPreferredSize() { return new Dimension(200, 200); } } public class ProgressWorker extends SwingWorker<Void, Integer> { private int delay; private JProgressBar pb; public ProgressWorker(JProgressBar progressBar, int delay) { this.pb = progressBar; this.delay = delay; } @Override protected void process(List<Integer> chunks) { // Back in the EDT... pb.setValue(chunks.get(chunks.size() - 1)); // only care about the last one... } @Override protected Void doInBackground() throws Exception { for (int index = 0; index < 100; index++) { publish(index); Thread.sleep(delay); } return null; } @Override protected void done() { // Back in the EDT... //pii.dispose(); //o.Eros(); } }}将
SwingWorker让你的逻辑中分离出来。在该
doInBackground方法中，您可以专注于需要在EDT之外运行的那部分代码，可以将其
publish更新回EDT并
process分别更新。当您完成所有操作后，
done您可以根据需要进行清理。
SwingWorker还提供了进度监视功能，因此，就您而言，如果您不想这样做，则不必使用API 的
publish/
process部分。这样一
PropertyChangeListener来，您无需将进度条暴露在工作人员上即可将其附加到工作人员。（但我为示例做了）
public class ProgressWorker extends SwingWorker<Void, Integer> { private int delay; private JProgressBar pb; public ProgressWorker(JProgressBar progressBar, int delay) { this.pb = progressBar; this.delay = delay; // You can use a property change listener to monitor progress updates... addPropertyChangeListener(new PropertyChangeListener() { @Override public void propertyChange(PropertyChangeEvent evt) { if ("progress".equalsIgnoreCase(evt.getPropertyName())) { pb.setValue((Integer)evt.getNewValue()); } } }); } @Override protected Void doInBackground() throws Exception { for (int index = 0; index < 100; index++) { setProgress(index); Thread.sleep(delay); } return null; } @Override protected void done() { // Back in the EDT... //pii.dispose(); //o.Eros(); }}
