swing之JTable小测试（一个单元格添加两个或多个下拉框）

 

 

package com.copy;

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Component;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.Vector;

import javax.swing.DefaultCellEditor;
import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.ListSelectionModel;
import javax.swing.event.ListSelectionEvent;
import javax.swing.event.ListSelectionListener;
import javax.swing.table.AbstractTableModel;
import javax.swing.table.DefaultTableCellRenderer;
import javax.swing.table.TableColumnModel;

/**
 * 
 * @项目名称：TestTable 
 * @类名称：Test 
 * @类描述： swing 三层演示 以及 Jtable小测试
 * @创建人：wangyongfei 
 * @创建时间：2012-9-18 上午10:57:40 
 * @修改人：wangyongfei 
 * @修改时间：2012-9-18 上午10:57:40 
 * @修改备注： 
 * @version
 */
public class TestTable {
    
 private JFrame frame;
 private JTable table;
 private Table_Model model;
 private JScrollPane s_pan;
 private JButton btnDelete;
 private JButton btnAdd;
 private JButton btnSave;
 private JPanel pane;
 private JComboBox sexBox;
 private JBoxTestCell jc;
 
 public TestTable() {
  frame = new JFrame("JTable测试");
  pane = new JPanel();
  btnDelete = new JButton("删除");
  btnDelete.addActionListener(new ActionListener() {
   public void actionPerformed(ActionEvent e) {
       int row = table.getSelectedRow();
       removeData(row);
   }
  });
  btnAdd = new JButton("添加");
  btnAdd.addActionListener(new ActionListener() {
   public void actionPerformed(ActionEvent e) {
    addData();
   }
  });
  btnSave = new JButton("保存");
  btnSave.addActionListener(new ActionListener() {
   public void actionPerformed(ActionEvent e) {
    saveData();
   }
  });
  pane.add(btnDelete);
  pane.add(btnAdd);
  pane.add(btnSave);
  model = new Table_Model(20);
  table = new JTable(model);
  
  //得到选中的行号
  ListSelectionModel model = table.getSelectionModel();
  model.addListSelectionListener(new ListSelectionListener() {
    @Override
    public void valueChanged(ListSelectionEvent e) {
        if(table.getSelectedRowCount() > 0)
        System.out.println(table.getSelectedRow());
    }
  });
  table.setRowHeight(30);
  table.setGridColor(Color.red);
  table.setBackground(Color.white);
  try {
      table.setDefaultRenderer(Class.forName("java.lang.Object"), new TableRender());
  } catch (ClassNotFoundException e1) {
      e1.printStackTrace();
  }
  
  jc = new JBoxTestCell();
  TableColumnModel tcm = table.getColumnModel();
  tcm.getColumn(3).setCellEditor(jc);
  tcm.getColumn(0).setPreferredWidth(50);
  tcm.getColumn(1).setPreferredWidth(100);
  
  String[] sex = { "女", "男", "未知" };
  sexBox = new JComboBox(sex);
  sexBox.setSelectedIndex(0);
  TableColumnModel sexT = table.getColumnModel();
  sexT.getColumn(2).setCellEditor(new DefaultCellEditor(sexBox));

  s_pan = new JScrollPane(table);
  frame.getContentPane().add(s_pan, BorderLayout.CENTER);
  frame.getContentPane().add(pane, BorderLayout.NORTH);
  frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
  frame.setSize(300, 200);
  frame.setVisible(true);

 }

 private void addData() {
    Object[] str = {"小张", "", ""};
    model.addRow(str);
    table.updateUI();
 }

 /**
  * 清除选中行
  * @param row
  */
 private void removeData(int row) {
  model.removeRows(row);
  table.updateUI();
 }
 
/**
 * 打印到控制台
 */
 private void saveData() {
     
  int col = model.getColumnCount();
  int row = model.getRowCount();
  int i = 0;
  while(i < col){
      System.out.print(model.getColumnName(i) + "\t");
      i++;
  }
  System.out.print("\r\n");
  int k = 0, j = 0;
  while(k < row){
      while(j < col){
          System.out.print(model.getValueAt(k, j) + "\t");
          j++;
      }
      k++;
  }
   System.out.print("\r\n");
  }

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

}


/**
 *模型
 */
class Table_Model extends AbstractTableModel {
 private Vector vector = null;
 private String[] titleName = { "编号", "姓名", "性别", "爱好" };
 public Table_Model() {
     vector = new Vector();
 }
 public Table_Model(int count) {
     vector = new Vector(count);
 }

 public void addRow(Object[] str) {
     
  Vector v = new Vector(titleName.length);
  v.add(0, new Integer(vector.size()));
  for(int i = 1; i <= str.length; i++){
      v.add(i, str[i-1]);
      
  }
  vector.add(v);
 }
 
 /**
  * 删除选中行
  * @param row
  */
 public void removeRows(int row) {
     vector.remove(row);
 }

 /**
  * 是否为可编辑
  */
 public boolean isCellEditable(int rowIndex, int columnIndex) {
  if (columnIndex == 0) {
   return false;
  }
  return true;
 }

 /**
  * 使修改的内容生效
  */
 public void setValueAt(Object value, int row, int col) {
  ((Vector) vector.get(row)).remove(col);
  ((Vector) vector.get(row)).add(col, value);
  this.fireTableCellUpdated(row, col);//通知所有侦听器，已更新 [row, column] 处的单元格值。
 }

 public String getColumnName(int col) {
  return titleName[col];
 }

 public int getColumnCount() {
  return titleName.length;
 }

 public int getRowCount() {
  return vector.size();
 }
 
/**
 * 返回 col 和 row 位置的单元格值。 
 */
 public Object getValueAt(int row, int col) {
  return ((Vector) vector.get(row)).get(col);
 }

 /**
  *  针对列中所有的单元格值，返回最具体的超类
  *  返回数据类型
  */
 public Class getColumnClass(int col) {
    return getValueAt(0, col).getClass();
 }

}
/**
 * 视图处理
 */
class TableRender extends DefaultTableCellRenderer{
    private int row;
    private int column;
    private String value;
    public Component getTableCellRendererComponent(JTable table, Object value,
            boolean isSelected, boolean hasFocus, int row, int column) {
        Component cell = super.getTableCellRendererComponent(table, value, isSelected, hasFocus, row, column);
        if(hasFocus){
            this.row = row;
            this.column = column;
            this.value = value.toString();
//            cell.setBackground(Color.RED);
//            cell.setForeground(Color.BLACK);
        }
        return cell;
    }
    public int getSelectedRow(){
        return row;
    }
    public int getSelectedColumn(){
        return column;
    }
    public String getSelectedValue(){
        return value;
    }
    
}

 

package com.copy;

import java.awt.BorderLayout;
import java.awt.Component;
import java.awt.Dimension;
import java.util.EventObject;

import javax.swing.AbstractCellEditor;
import javax.swing.JComboBox;
import javax.swing.JPanel;
import javax.swing.JTable;
import javax.swing.table.TableCellEditor;

public class JBoxTestCell  extends AbstractCellEditor implements
TableCellEditor {
    int row;
    private JTable table;
    private JPanel p1;
    private JComboBox jbxType1;
    private JComboBox jbxType2;
    private Object val = null;
    public JBoxTestCell() {
        p1 = new JPanel(new BorderLayout());
        p1.setPreferredSize(new Dimension(300, 30));
        String[] interest1 = { "足球1", "游泳1", "拉丁舞1", "击剑1", "马术1", "读书1", "旅游1" };
        jbxType1 = new JComboBox(interest1);
        jbxType1.setPreferredSize(new Dimension(80,25));
        
        String[] interest2 = { "足球2", "游泳2", "拉丁舞2", "击剑2", "马术2", "读书2", "旅游2" };
        jbxType2 = new JComboBox(interest2);
        jbxType2.setPreferredSize(new Dimension(80,25));
        jbxType1.setSelectedIndex(0);
        jbxType2.setSelectedIndex(0);
        p1.add(jbxType1, BorderLayout.WEST);
        p1.add(jbxType2, BorderLayout.EAST);
    }

    @Override
    public boolean isCellEditable(EventObject anEvent) {
        return true;
    }
    public void showSave() {
        jbxType1.setVisible(true);
        jbxType2.setVisible(true);
    }

    public Object getCellEditorValue() {
        String v1 = jbxType1.getSelectedItem().toString();
        String v2 = jbxType2.getSelectedItem().toString();
        return v1+", "+v2;
        
    }
    
    public Component getTableCellEditorComponent(JTable table, Object value,
            boolean isSelected, int row, int column) {
        this.table = table;
        this.row = row;
        val = value;
        return this.p1;
    }
}

 

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