Question

java 如何获取jtabel中被选中行的值

需要什么方法？新手 稍微详细一些，谢谢。

Answer 1

public javax.swing.JTable sNameTable;//定义table
private DefaultTableModel tableModel = new JTableUtil.DefaultTableModel();//定义Model
UpctableModel.setColumnIdentifiers(new String[] {"ID" ,"NAME" ,"AGE"});//定义表头
sNameTable.setModel(tableModel);//设置表格tableModel
//添加值
tableModel .addRow(new Object[]{"1","CC","20"});
tableModel .addRow(new Object[]{"2","DD","21"});
tableModel .addRow(new Object[]{"3","DD","22"});

int row = sNameTable.getSelectedRow();//取得表格选中行
int sID = tableModel .getValueAt(row, 2).toString());//取得表格选中行的AGE字段，如果选中第三行则，sID = "22"(表格从0标签开始).

谢谢，纯手敲，望采纳！

Answer 2

选择行 点一下按钮试一下。
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import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.table.DefaultTableModel;

public class App extends JFrame implements ActionListener {

private JTable table;
private DefaultTableModel model = null;
private String[] columnnames = { "no", "name" };
private String[][] data = { { "1", "name1" }, { "2", "name2" },
{ "3", "name3" } };

public App() {
getContentPane().setLayout(null);

JButton btnNewButton = new JButton("change");
btnNewButton.setBounds(12, 10, 93, 23);
btnNewButton.addActionListener(this);
getContentPane().add(btnNewButton);

JScrollPane scrollPane = new JScrollPane();
scrollPane.setBounds(12, 43, 428, 270);
getContentPane().add(scrollPane);

model = new DefaultTableModel(data, columnnames);
table = new JTable(model);
scrollPane.setViewportView(table);

setSize(460, 350);
setDefaultCloseOperation(EXIT_ON_CLOSE);
setVisible(true);
}

public static void main(String[] args) {
new App();
}

public void actionPerformed(ActionEvent e) {
int row = table.getSelectedRow();
System.out.println(table.getValueAt(row, 0));
System.out.println(table.getValueAt(row, 1));
}
}

Answer 3

在需要的地方加入如下代码：

Java代码
IViewPart vp = getViewSite().getPage().findView(YOUR_VIEW_ID);
TreeViewer viewer = ((YOUR_VIEW)vp).getTreeViewer();
Object o = ((IStructuredSelection)viewer.getSelection()).getFirstElement();
NodeEntity nodeWanted = (NodeEntity) o;

IViewPart vp = getViewSite().getPage().findView(YOUR_VIEW_ID);
TreeViewer viewer = ((YOUR_VIEW)vp).getTreeViewer();
Object o = ((IStructuredSelection)viewer.getSelection()).getFirstElement();
NodeEntity nodeWanted = (NodeEntity) o;

YOUR_VIEW_ID是指你的视图类YOUR_VIEW在工程中的ID号。

思路：首先获取一个IViewPar接口t,然后转换成自己的视图类。再通过getSelection()).getFirstElement();

得到所需的这个实体。