JTable实现列自动适用内容宽度
/*
* 使表格自动适应内容调整列大小
*/
public void fitTableColumns(JTable myTable){
JTableHeader header = myTable.getTableHeader();
int rowCount = myTable.getRowCount();
Enumeration columns = myTable.getColumnModel().getColumns();
while(columns.hasMoreElements()){
TableColumn column = (TableColumn)columns.nextElement();
int col = header.getColumnModel().getColumnIndex(column.getIdentifier());
int width = (int)myTable.getTableHeader().getDefaultRenderer()
.getTableCellRendererComponent(myTable, column.getIdentifier()
, false, false, -1, col).getPreferredSize().getWidth();
for(int row = 0; row<rowCount; row++){
int preferedWidth = (int)myTable.getCellRenderer(row, col).getTableCellRendererComponent(myTable,
myTable.getValueAt(row, col), false, false, row, col).getPreferredSize().getWidth();
width = Math.max(width, preferedWidth);
}
header.setResizingColumn(column); // 此行很重要
column.setWidth(width+myTable.getIntercellSpacing().width + 4);//4,值目的是使表格看起来不是那么拥挤,起到间隔作用
}
}