JTable常见用法细则+设置某列可编辑+滚动表格

最新推荐文章于 2024-10-18 15:36:18 发布

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最新推荐文章于 2024-10-18 15:36:18 发布

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文章标签： java 数据结构与算法

JTable常见用法细则

JTable是Swing编程中很常用的控件,这里总结了一些常用方法以备查阅.欢迎补充,转载请注明作者与出处.

一.创建表格控件的各种方式:
1)调用无参构造函数.

JTabletable = new JTable();

2)以表头和表数据创建表格.

Object[][]cellData =

{

{"row1-col1","row1-col2"},

{"row2-col1","row2-col2"}} ;

String[]columnNames =

{"col1","col2"} ;

<img title="JTable常见用法细则+设置某列可编辑+滚动表格" alt="" src="https://i-blog.csdnimg.cn/blog_migrate/4f1150b881333f12a311ae9ef34da474.gif" align="top">JTabletable = new JTable(cellData,columnNames);

3)以表头和表数据创建表格,并且让表单元格不可改.

String[]headers =

{"表头一","表头二","表头三"} ;

Object[][]cellData = null ;

DefaultTableModelmodel = new DefaultTableModel(cellData,headers)

{

publicbooleanisCellEditable(introw,intcolumn)

{

returnfalse;

}

} ;

table = new JTable(model);

二.对表格列的控制
1) 设置列不可随容器组件大小变化自动调整宽度.

table.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);

2) 限制某列的宽度.

TableColumnfirsetColumn = table.getColumnModel().getColumn( 0 );

firsetColumn.setPreferredWidth( 30 );

firsetColumn.setMaxWidth( 30 );

firsetColumn.setMinWidth( 30 );

3) 设置当前列数.

tableModel.setColumnCount(count);

4) 取得表格列数

int cols = table.getColumnCount();

5) 添加列

6) 删除列

table.removeColumn(table.getColumnModel().getColumn(columnIndex)); // columnIndex是要删除的列序号

三.对表格行的控制
1) 设置行高

table.setRowHeight( 20 );

2) 设置当前航数

tableModel.setRowCount(n);

3) 取得表格行数

int rows = table.getRowCount(); <img title="JTable常见用法细则+设置某列可编辑+滚动表格" alt="" src="https://i-blog.csdnimg.cn/blog_migrate/4f1150b881333f12a311ae9ef34da474.gif" align="top">

4) 添加表格行

DefaultTableModeltableModel = (DefaultTableModel)table.getModel(); <img title="JTable常见用法细则+设置某列可编辑+滚动表格" alt="" src="https://i-blog.csdnimg.cn/blog_migrate/1fa987a29c6482f53d401256f96355eb.gif" align="top" name="Codehighlighter1_99_127_Open_Image"><img title="JTable常见用法细则+设置某列可编辑+滚动表格" alt="" src="https://i-blog.csdnimg.cn/blog_migrate/a4c26d1e5885305701be709a3d33442f.gif" align="top" name="Codehighlighter1_99_127_Closed_Image">tableModel.addRow( new Object[]

{"sitinspring","35","Boss"} );

5) 删除表格行

四.存取表格单元格的数据
1) 取单元格数据

2) 填充数据到表格.
注:数据是Member类型的链表,Member类如下:

public class Member

{

//名称

privateStringname; <img title="JTable常见用法细则+设置某列可编辑+滚动表格" alt="" src="https://i-blog.csdnimg.cn/blog_migrate/d18c02628675d0a2c816449d98bda930.gif" align="top"> <img title="JTable常见用法细则+设置某列可编辑+滚动表格" alt="" src="https://i-blog.csdnimg.cn/blog_migrate/d18c02628675d0a2c816449d98bda930.gif" align="top">//年龄

privateStringage; <img title="JTable常见用法细则+设置某列可编辑+滚动表格" alt="" src="https://i-blog.csdnimg.cn/blog_migrate/d18c02628675d0a2c816449d98bda930.gif" align="top"> <img title="JTable常见用法细则+设置某列可编辑+滚动表格" alt="" src="https://i-blog.csdnimg.cn/blog_migrate/d18c02628675d0a2c816449d98bda930.gif" align="top">//职务

privateStringtitle; <img title="JTable常见用法细则+设置某列可编辑+滚动表格" alt="" src="https://i-blog.csdnimg.cn/blog_migrate/8f1ba5b45633e9678d1db480c16cae3f.gif" align="top"> }

填充数据的代码:

public void fillTable(List < Member > members)

{

DefaultTableModeltableModel=(DefaultTableModel)table <img title="JTable常见用法细则+设置某列可编辑+滚动表格" alt="" src="https://i-blog.csdnimg.cn/blog_migrate/d18c02628675d0a2c816449d98bda930.gif" align="top">.getModel(); <img title="JTable常见用法细则+设置某列可编辑+滚动表格" alt="" src="https://i-blog.csdnimg.cn/blog_migrate/d18c02628675d0a2c816449d98bda930.gif" align="top">tableModel.setRowCount(0);//清除原有行 <img title="JTable常见用法细则+设置某列可编辑+滚动表格" alt="" src="https://i-blog.csdnimg.cn/blog_migrate/d18c02628675d0a2c816449d98bda930.gif" align="top"> <img title="JTable常见用法细则+设置某列可编辑+滚动表格" alt="" src="https://i-blog.csdnimg.cn/blog_migrate/d18c02628675d0a2c816449d98bda930.gif" align="top">//填充数据

for(Membermember:members)

{

String[]arr=newString[3];

arr[0]=member.getName();

arr[1]=member.getAge();

arr[2]=member.getTitle();

tableModel.addRow(arr); <img title="JTable常见用法细则+设置某列可编辑+滚动表格" alt="" src="https://i-blog.csdnimg.cn/blog_migrate/ecedf933ec37d714bd4c2545da43add2.gif" align="top">}

table.invalidate(); <img title="JTable常见用法细则+设置某列可编辑+滚动表格" alt="" src="https://i-blog.csdnimg.cn/blog_migrate/8f1ba5b45633e9678d1db480c16cae3f.gif" align="top"> }

2) 取得表格中的数据

public List < Member > getShowMembers()

{

List<Member>members=newArrayList<Member>();

<img title="JTable常见用法细则+设置某列可编辑+滚动表格" alt="" src="https://i-blog.csdnimg.cn/blog_migrate/d18c02628675d0a2c816449d98bda930.gif" align="top">DefaultTableModeltableModel=(DefaultTableModel)table <img title="JTable常见用法细则+设置某列可编辑+滚动表格" alt="" src="https://i-blog.csdnimg.cn/blog_migrate/d18c02628675d0a2c816449d98bda930.gif" align="top">.getModel(); <img title="JTable常见用法细则+设置某列可编辑+滚动表格" alt="" src="https://i-blog.csdnimg.cn/blog_migrate/d18c02628675d0a2c816449d98bda930.gif" align="top"> <img title="JTable常见用法细则+设置某列可编辑+滚动表格" alt="" src="https://i-blog.csdnimg.cn/blog_migrate/d18c02628675d0a2c816449d98bda930.gif" align="top">introwCount=tableModel.getRowCount();

<img title="JTable常见用法细则+设置某列可编辑+滚动表格" alt="" src="https://i-blog.csdnimg.cn/blog_migrate/97e794c86028c5f5b5461ae5ef440a4c.gif" align="top" name="Codehighlighter1_239_523_Open_Image"><img title="JTable常见用法细则+设置某列可编辑+滚动表格" alt="" src="https://i-blog.csdnimg.cn/blog_migrate/a4c26d1e5885305701be709a3d33442f.gif" align="top" name="Codehighlighter1_239_523_Closed_Image">for(inti=0;i<rowCount;i++)

{

Membermember=newMember(); <img title="JTable常见用法细则+设置某列可编辑+滚动表格" alt="" src="https://i-blog.csdnimg.cn/blog_migrate/d18c02628675d0a2c816449d98bda930.gif" align="top"> <img title="JTable常见用法细则+设置某列可编辑+滚动表格" alt="" src="https://i-blog.csdnimg.cn/blog_migrate/d18c02628675d0a2c816449d98bda930.gif" align="top">member.setName((String)tableModel.getValueAt(i,0));//取得第i行第一列的数据

member.setAge((String)tableModel.getValueAt(i,1));//取得第i行第二列的数据

member.setTitle((String)tableModel.getValueAt(i,2));//取得第i行第三列的数据

<img title="JTable常见用法细则+设置某列可编辑+滚动表格" alt="" src="https://i-blog.csdnimg.cn/blog_migrate/d18c02628675d0a2c816449d98bda930.gif" align="top">members.add(member); <img title="JTable常见用法细则+设置某列可编辑+滚动表格" alt="" src="https://i-blog.csdnimg.cn/blog_migrate/ecedf933ec37d714bd4c2545da43add2.gif" align="top">}

<img title="JTable常见用法细则+设置某列可编辑+滚动表格" alt="" src="https://i-blog.csdnimg.cn/blog_migrate/d18c02628675d0a2c816449d98bda930.gif" align="top">returnmembers; <img title="JTable常见用法细则+设置某列可编辑+滚动表格" alt="" src="https://i-blog.csdnimg.cn/blog_migrate/8f1ba5b45633e9678d1db480c16cae3f.gif" align="top"> }

五.取得用户所选的行
1) 取得用户所选的单行

int selectRows = table.getSelectedRows().length; // 取得用户所选行的行数

DefaultTableModeltableModel = (DefaultTableModel)table.getModel(); <img title="JTable常见用法细则+设置某列可编辑+滚动表格" alt="" src="https://i-blog.csdnimg.cn/blog_migrate/4f1150b881333f12a311ae9ef34da474.gif" align="top"> <img title="JTable常见用法细则+设置某列可编辑+滚动表格" alt="" src="https://i-blog.csdnimg.cn/blog_migrate/1fa987a29c6482f53d401256f96355eb.gif" align="top" name="Codehighlighter1_147_231_Open_Image"><img title="JTable常见用法细则+设置某列可编辑+滚动表格" alt="" src="https://i-blog.csdnimg.cn/blog_migrate/a4c26d1e5885305701be709a3d33442f.gif" align="top" name="Codehighlighter1_147_231_Closed_Image"> if (selectRows == 1 )

{

intselectedRowIndex=table.getSelectedRow();//取得用户所选单行

<img title="JTable常见用法细则+设置某列可编辑+滚动表格" alt="" src="https://i-blog.csdnimg.cn/blog_migrate/d18c02628675d0a2c816449d98bda930.gif" align="top"><img title="JTable常见用法细则+设置某列可编辑+滚动表格" alt="" src="https://i-blog.csdnimg.cn/blog_migrate/9b8a8a44dd1c74ae49c20a7cd451974e.gif">.//进行相关处理

}

2) 取得用户所选的多行

int selectRows = table.getSelectedRows().length; // 取得用户所选行的行数

int []selRowIndexs = table.getSelectedRows(); // 用户所选行的序列

<img title="JTable常见用法细则+设置某列可编辑+滚动表格" alt="" src="https://i-blog.csdnimg.cn/blog_migrate/1fa987a29c6482f53d401256f96355eb.gif" align="top" name="Codehighlighter1_247_359_Open_Image"><img title="JTable常见用法细则+设置某列可编辑+滚动表格" alt="" src="https://i-blog.csdnimg.cn/blog_migrate/a4c26d1e5885305701be709a3d33442f.gif" align="top" name="Codehighlighter1_247_359_Closed_Image"> for ( int i = 0 ;i < selRowIndexs.length;i ++ )

{

//用tableModel.getValueAt(row,column)取单元格数据

StringcellValue=(String)tableModel.getValueAt(i,1);

}

}

六.添加表格的事件处理

view.getTable().addMouseListener( new MouseListener()

{

publicvoidmousePressed(MouseEvente)

{

//鼠标按下时的处理

}

publicvoidmouseReleased(MouseEvente)

{

//鼠标松开时的处理

}

publicvoidmouseEntered(MouseEvente)

{

//鼠标进入表格时的处理

}

publicvoidmouseExited(MouseEvente)

{

//鼠标退出表格时的处理

}

publicvoidmouseClicked(MouseEvente)

{

//鼠标点击时的处理

}

} );

例子：

import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.FlowLayout;
import java.awt.GridLayout;

import javax.swing.Icon;
import javax.swing.ImageIcon;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.table.DefaultTableModel;

public class PTest{
 public PTest() { String head[] = {"学号", "姓名", "成绩（请双击以下空格输入）"}; Icon bug = new ImageIcon(getClass().getResource("789.jpg")); JLabel a = new JLabel (bug);

JTable a1 = new JTable (20,3); a1.setRowHeight (30);//设置高度 a1.setDragEnabled(true); //设置第一、二列不可可编辑 DefaultTableModel tableModel = new DefaultTableModel(20,3){ boolean[] editables = {false, false, true}; public boolean isCellEditable(int row, int col) { return editables[col]; }

//使table不可编辑的代码（放在model中有效）全部不可编辑
//public boolean isCellEditable(int row, int column)
// {
// return false;
// }
 }; a1.setModel(tableModel);

for (int i=0; i<3; i++) a1.getModel().setValueAt(head[i], 0, i);

JPanel panelwrap = new JPanel (new FlowLayout ()); JPanel panel = new JPanel (new GridLayout (2,1)); panel.setPreferredSize (new Dimension (500,400)); // panel.setBackground (Color.black); panel.add (a,BorderLayout.CENTER); JScrollPane a2 = new JScrollPane (a1); panel.add (a2,BorderLayout.CENTER); panelwrap.add(panel);

JFrame frame = new JFrame ("JTableDemo"); frame.setDefaultCloseOperation (JFrame.EXIT_ON_CLOSE); frame.setContentPane (panelwrap); frame.setSize(500,400); frame.pack(); frame.show(); } public static void main(String[] args) { PTest k = new PTest(); } }

//////////////////////////////////////////自己的//////////////////////////////////////

private JTable getJTable0() {
if (jTable0 == null) {
jTable0 = new JTable();

jTable0.setModel(new DefaultTableModel(new Object[][] { {false, "null", "null", "com1", "null", "null", "null", "null", "null", "null", },
{false, "null", "null", "com2", "null", "null", "null", "null", "null", "null", },
{ false, "null", "null", "com3", "null", "null", "null", "null", "null", "null",},
{ false,"null", "null", "com4", "null", "null", "null", "null", "null", "null", },
{ false,"null", "null", "com5", "null", "null", "null", "null", "null", "null", },
{ false, "null", "null", "com6", "null", "null", "null", "null", "null", "null",},
{ false, "null", "null", "com7", "null", "null", "null", "null", "null", "null", },
{false, "null", "null", "com8", "null", "null", "null", "null", "null", "null", },
{ false,"null", "null", "com9", "null", "null", "null", "null", "null", "null", },
{ false,"null", "null", "com10", "null", "null", "null", "null", "null", "null", },
{false, "null", "null", "com11", "null", "null", "null", "null", "null", "null", },
{ false, "null", "null", "com12", "null", "null", "null", "null", "null", "null", }, }, new String[] {"操作", "ID", "status", "序号", "产品序列号", "半成品序列号",
"所属工作任务号", "产品型号（pn码）", "生产进度状态", "端口状态", }) {
private static final long serialVersionUID = 1L;
Class<?>[] types = new Class<?>[] { Boolean.class, Object.class, Object.class, Object.class, Object.class, Object.class, Object.class, Object.class, Object.class,
Object.class, };

public Class<?> getColumnClass(int columnIndex) {
return types[columnIndex];
}

////使table不可编辑的代码（放在model中有效）全部不可编辑
//public boolean isCellEditable(int row, int column)
// {
// return false;
// }
//指定列不可编辑
boolean[] editables = {true, false, false,false,false,false,false,false,false,false};
public boolean isCellEditable(int row, int col)
{
return editables[col];
}

//指定行不可编辑
boolean[] editables = {true, false, false,false,false,false,false,false};
public boolean isCellEditable(int row, int col)
{
return editables[row];
}

});
}
return jTable0;
}