使Java JTable行打开文本文件 [英] Make a Java JTable row open a text file
本文介绍了使Java JTable行打开文本文件的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
您知道在iTunes中双击歌曲时如何播放MP3文件.
You know how when you double click on a song in iTunes, a MP3 file plays.
使用JTable作为我的用户界面,如何将行链接到应用程序文件系统中的文本文件,以便当我双击行时,与该行关联的txt文件打开?
Using a JTable for my user interface, how do I link a row to a text file in the application file system so that when I double click on a row, a txt file associated with that row opens?
推荐答案
在单击任何行时,都需要输入文件名才能打开它,在下面的代码中,我将文件名存储在最后柱子.我在鼠标单击上使用相同的按钮在记事本中打开文件.
On click on any row you need to have the file name with you in order to open it, in the below code I have stored the file name in the last column. And I am using the same on mouse click to open the file in notepad.
代码段:
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.io.IOException;
import java.awt.Desktop;
import javax.swing.JFrame;
import javax.swing.JTable;
import javax.swing.ListSelectionModel;
import javax.swing.table.AbstractTableModel;
import javax.swing.table.TableModel;
public class JTableTest {
JTable myTable;
public JTableTest() {
JFrame frame = new JFrame("Double Click on Table Test");
final String[] columnNames = {"S.No. ", "File Name", "File Path", ""};
final Object[][] tableData = {{"1", "test1.txt", "C://test1.txt", "C:/Test/test1.txt"},
{"2", "test2.txt", "C://test2.txt", "C:/Test/test2.txt"}, {"3", "test2.txt", "C://test3.txt", "C:/Test/test3.txt"},};
TableModel dataModel = new AbstractTableModel() {
public int getColumnCount() {
return columnNames.length;
}
public int getRowCount() {
return tableData.length;
}
public Object getValueAt(int row, int col) {
return tableData[row][col];
}
public String getColumnName(int column) {
return columnNames[column];
}
public Class getColumnClass(int col) {
return getValueAt(0, col).getClass();
}
public void setValueAt(Object aValue, int row, int column) {
tableData[row][column] = aValue;
}
};
myTable = new JTable(dataModel);
myTable.getColumnModel().getColumn(3).setMaxWidth(0);
myTable.getColumnModel().getColumn(3).setMinWidth(0);
myTable.getColumnModel().getColumn(3).setPreferredWidth(0);
myTable.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
frame.getContentPane().add(myTable);
frame.pack();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setVisible(true);
myTable.addMouseListener(new MouseAdapter() {
public void mouseClicked(MouseEvent e) {
if (e.getClickCount() == 2) {
int selectedRow = myTable.getSelectedRow();
try {
Desktop.getDesktop().open(new File((String) myTable.getValueAt(selectedRow, 3)));
} catch (IOException e1) {
e1.printStackTrace();
}
}
}
});
}
public static void main(String[] args) {
new JTableTest();
}
}
希望这可以帮助您
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