JTable如何实现复制内容?

发布网友发布时间：2022-04-23 03:50

共1个回答

热心网友时间：2022-04-23 05:19

package 右键复制剪切粘贴;

import java.awt.FlowLayout;
import java.awt.Frame;
import java.awt.Menu;
import java.awt.MenuBar;
import java.awt.MenuItem;
import java.awt.TextArea;
import java.awt.datatransfer.Clipboard;
import java.awt.datatransfer.DataFlavor;
import java.awt.datatransfer.StringSelection;
import java.awt.datatransfer.Transferable;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;

public class 复制 extends Frame implements ActionListener {
MenuBar menubar;
Menu menu;
MenuItem copy, cut, paste;
TextArea text1, text2;
Clipboard clipboard = null;

复制() {
clipboard = getToolkit().getSystemClipboard();// 获取系统剪贴板。
menubar = new MenuBar();
menu = new Menu("Edit");
copy = new MenuItem("copy");
cut = new MenuItem("cut");
paste = new MenuItem("paste");
text1 = new TextArea(20, 20);
text2 = new TextArea(20, 20);
copy.addActionListener(this);
cut.addActionListener(this);
paste.addActionListener(this);
setLayout(new FlowLayout());
menubar.add(menu);
menu.add(copy);
menu.add(cut);
menu.add(paste);
setMenuBar(menubar);
add(text1);
add(text2);
setBounds(100, 100, 200, 250);
setVisible(true);
pack();
addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
System.exit(0);
}
});
}

public void actionPerformed(ActionEvent e) {
if (e.getSource() == copy) // 拷贝到剪贴板。
{
String temp = text1.getSelectedText(); // 拖动鼠标选取文本。
StringSelection text = new StringSelection(temp);
clipboard.setContents(text, null);
} else if (e.getSource() == cut) // 剪贴到剪贴板。
{
String temp = text1.getSelectedText(); // 拖动鼠标选取文本。
StringSelection text = new StringSelection(temp);
clipboard.setContents(text, null);
int start = text1.getSelectionStart();
int end = text1.getSelectionEnd();
text1.replaceRange("", start, end); // 从Text1中删除被选取的文本。
} else if (e.getSource() == paste) // 从剪贴板粘贴数据。
{
Transferable contents = clipboard.getContents(this);
DataFlavor flavor = DataFlavor.stringFlavor;
if (contents.isDataFlavorSupported(flavor))
try {
String str;
str = (String) contents.getTransferData(flavor);
text2.append(str);
} catch (Exception ee) {
}
}
}

public static void main(String args[]) {
复制 win = new 复制();
}
}