JTable中合并单元格.docx
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JTable中合并单元格
/*
*SimpleTableDemo.javaisa1.4applicationthatrequiresnootherfiles.
*/
//编辑的时候直接从覆盖原有内容
importjavax.swing.JFrame;
importjavax.swing.JPanel;
importjavax.swing.JScrollPane;
importjavax.swing.JTable;
importjava.awt.Dimension;
importjava.awt.GridLayout;
importjava.awt.event.MouseAdapter;
importjava.awt.event.MouseEvent;
importjava.util.*;
importjava.awt.event.*;
importjavax.swing.*;
importjavax.swing.table.*;
importjava.io.*;
importjava.util.*;
publicclassCombineextendsJPanel{
privatebooleanDEBUG=false;
JTabletable;
publicCombine（）{
super（newGridLayout（1,0））;
table=newJTable（newMyTableModel（））;
table.setPreferredScrollableViewportSize（newDimension（500,70））;
///////////////////////////////////////////////////////////
table.setDefaultEditor（String.class,newSelEditor（））;
//Createthescrollpaneandaddthetabletoit.
JScrollPanescrollPane=newJScrollPane（table）;
//Addthescrollpanetothispanel.
add（scrollPane）;
}
/**
*CreatetheGUIandshowit.Forthreadsafety,
*thismethodshouldbeinvokedfromthe
*event-dispatchingthread.
*/
privatestaticvoidcreateAndShowGUI（）{
//Makesurewehavenicewindowdecorations.
JFrame.setDefaultLookAndFeelDecorated（true）;
//Createandsetupthewindow.
JFrameframe=newJFrame（"MyCustomTable2"）;
frame.setDefaultCloseOperation（JFrame.EXIT_ON_CLOSE）;
//Createandsetupthecontentpane.
CombinenewContentPane=newCombine（）;
newContentPane.setOpaque（true）;//contentpanesmustbeopaque
frame.setContentPane（newContentPane）;
//Displaythewindow.
frame.pack（）;
frame.setVisible（true）;
try
{
Thread.sleep（1000）;
}
catch（InterruptedExceptione）
{
e.printStackTrace（）;
}
（（MyTableModel）newContentPane.table.getModel（））.combineRow（"FirstName","LastName"）;
}
publicstaticvoidmain（String[]args）{
//Scheduleajobfortheevent-dispatchingthread:
//creatingandshowingthisapplication´sGUI.
javax.swing.SwingUtilities.invokeLater（newRunnable（）{
publicvoidrun（）{
createAndShowGUI（）;
}
}）;
}
classMyTableModelextendsAbstractTableModel{
privateString[]columnNames={"FirstName",
"LastName",
"Sport",
"#ofYears",
"Vegetarian"};
privateListcList=newArrayList（）;
{
for（inti=0;icList.add（columnNames[i]）;
}
privateObject[][]data={
{"Mary","Campione",
"Snowboarding",newInteger（5）,newBoolean（false）},
{"Alison","Huml",
"Rowing",newInteger（3）,newBoolean（true）},
{"Kathy","Walrath",
"Knitting",newInteger
（2）,newBoolean（false）},
{"Sharon","Zakhour",
"Speedreading",newInteger（20）,newBoolean（true）},
{"Philip","Milne",
"Pool",newInteger（10）,newBoolean（false）}
};
privateListdList=newArrayList（）;
{
for（inti=0;iListtmp=newArrayList（）;
for（intj=0;jtmp.add（data[i][j]）;
}
dList.add（tmp）;
}
}
publicintgetColumnCount（）{
returncList.size（）;
}
publicintgetRowCount（）{
returndList.size（）;
}
publicStringgetColumnName（intcol）{
return（String）cList.get（col）;
}
publicObjectgetValueAt（introw,intcol）{
return（（List）dList.get（row））.get（col）;
}
publicvoidcombineRow（Stringr1,Stringr2）{
intindex1=cList.indexOf（r1）;
intindex2=cList.indexOf（r2）;
cList.set（index1,r1+r2）;
cList.remove（r2）;
for（inti=0;iListlist=（List）dList.get（i）;
list.set（index1,list.get（index1）.toString（）+list.get（index2））;
list.remove（index2）;
}
fireTableStructureChanged（）;
}
/*
*JTableusesthismethodtodeterminethedefaultrenderer/
*editorforeachcell.Ifwedidn´timplementthismethod,
*thenthelastcolumnwouldcontaintext（"true"/"false"）,
*ratherthanacheckbox.
*/
publicClassgetColumnClass（intc）{
returncList.get（c）.getClass（）;
}
publicbooleanisCellEditable（introw,intcol）{
//Notethatthedata/celladdressisconstant,
//nomatterwherethecellappearsonscreen.
returntrue;
}
publicvoidsetValueAt（Objectvalue,introw,intcol）{
（（List）dList.get（row））.set（col,value）;
fireTableCellUpdated（row,col）;
}
privatevoidprintDebugData（）{
intnumRows=getRowCount（）;
intnumCols=getColumnCount（）;
for（inti=0;iSystem.out.print（"row"+i+":
"）;
for（intj=0;jSystem.out.print（""+（（List）dList.get（i））.get（j））;
}
System.out.println（）;
}
System.out.println（"--------------------------"）;
}
}
}
请仔细看MyTableModel的实现
第二个：
/*（swing1.1beta3）*/
packagetame.examples;
importjava.awt.event.WindowAdapter;
importjava.awt.event.WindowEvent;
importjava.awt.*;
importjavax.swing.*;
importjavax.swing.table.*;
importtame.table.ColumnGroup;
importtame.table.GroupableTableHeader;
importtame.table.GroupableTableHeaderUI;
/**
*|-----------------------------------------------------|
*| | Name | Language |
*| |-----------------|--------------------------|
*| SNo. | | | | Others |
*| | 1 | 2 |Native|-----------------|
*| | | | | 2 | 3 |
*|-----------------------------------------------------|
*| | | | | | |
@authorNobuoTamemasa
@version1.011/09/98
*/
publicclassGroupableHeaderExampleextendsJFrame{
GroupableHeaderExample（）{
super（"GroupableHeaderExample"）;
DefaultTableModeldm=newDefaultTableModel（）;
dm.setDataVector（newObject[][]{
{"119","foo","bar","ja","ko","zh"},
{"911","bar","foo","en","fr","pt"}},
newObject[]{"SNo.","1","2","Native","2","3"}）;
JTabletable=newJTable（dm）{
protectedJTableHeadercreateDefaultTableHeader（）{
returnnewGroupableTableHeader（columnModel）;
}
};
TableColumnModelcm=table.getColumnModel（）; //得到列模型，可以取出表头
ColumnGroupg_name=newColumnGroup（"Name"）;
g_name.add（cm.getColumn
（1））;
g_name.add（cm.getColumn
（2））;
ColumnGroupg_lang=newColumnGroup（"Language"）;
g_lang.add（cm.getColumn（3））;
ColumnGroupg_other=newColumnGroup（"Others"）;
g_other.add（cm.getColumn（4））;
g_other.add（cm.getColumn（5））;
g_lang.add（g_other）;
GroupableTableHeaderheader=（GroupableTableHeader）table.getTableHeader（）;
header.addColumnGroup（g_name）;
header.addColumnGroup（g_lang）;
TableCellRendererrenderer= newDefaultTableCellRenderer（）{
publicComponentgetTableCellRendererComponent（JTabletable,Objectvalue,
booleanisSelected,booleanhasFocus,introw,intcolumn）{
JTableHeaderheader=table.getTableHeader（）;
if（header!
=null）{
setForeground（header.getForeground（））;
setBackground（header.getBackground（））;
setFont（header.getFont（））;
}
setHorizontalAlignment（JLabel.CENTER）;
setText（（value==null）?
"":
value.toString（））;
setBorder（UIManager.getBorder（"TableHeader.cellBorder"））;
returnthis;
}
};
TableColumnModelmodel=table.getColumnModel（）;
for（inti=0;i model.getColumn（i）.setHeaderRenderer（renderer）;
}
table.getTableHeader（）.setUI（newGroupableTableHeaderUI（））;
JScrollPanescroll=newJScrollPane（table）;
getContentPane（）.add（scroll）;
setSize（400,120）;
}
publicstaticvoidmain（String[]args）{
GroupableHeaderExampleframe=newGroupableHeaderExample（）;
frame.addWindowListener（newWindowAdapter（）{
publicvoidwindowClosing（WindowEvente）{
System.exit（0）;
}
}）;
frame.setVisible（true）;
}
}
____________________________________________________________________________
publicclassGroupableHeaderExampleextendsJFrame{
GroupableHeaderExample（）{
super（"GroupableHeaderExample"）;
DefaultTableModeldm=newDefaultTableModel（）;
dm.setDataVector（newObject[][]{
{"119","foo","bar","ja","ko","zh"},
{"911","bar","foo","en","fr","pt"}},
newObject[]{"SNo.","1","2","Native","2","3"}）;
JTabletable=newJTable（dm）{
protectedJTableHeadercreateDefaultTableHeader（）{
returnnewGroupableTableHeader（columnModel）;
}
};
TableColumnModelcm=table.getColumnModel（）;
ColumnGroupg_name=newColumnGroup（"Name"）;
g_name.add（cm.getColumn
（1））;
g_name.add（cm.getColumn
（2））;
ColumnGroupg_lang=newColumnGroup（"Language"）;
g_lang.add（cm.getColumn（3））;
ColumnGroupg_other=newColumnGroup（"Others"）;
g_other.add（cm.getColumn（4））;
g_other.add（cm.getColumn（5））;
g_lang.add（g_other）;
GroupableTableHeaderheader=（GroupableTableHeader）table.getTableHeader（）;
header.addColumnGroup（g_name）;
header.addColumnGroup（g_lang）;
TableCellRendererrenderer= newDefaultTableCellRenderer（）{
publicComponentgetTableCellRendererComponent（JTabletable,Objectvalue,
booleanisSelected,booleanhasFocus,introw,intcolumn）{
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}
setHorizontalAlignment（JLabel.CENTER）;
setText（（value==null）?
"":
value.toString（）
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