JAVA-Excel导出

Posted 2020-07-06

private void export_button_ActionEvent(ActionEvent e) throws IOException, WriteException  {
  // TODO Auto-generated method stub
  try{ 
   fileChooser.setFileSelectionMode(JFileChooser.FILES_AND_DIRECTORIES);
   
   int returnVal=fileChooser.showSaveDialog(fileChooser);//弹出保存窗体
   
   String filePath=null;
   if(returnVal==JFileChooser.APPROVE_OPTION)
   {
    filePath=fileChooser.getSelectedFile().getAbsolutePath()+".xls";//设定导出格式
    System.out.println("filePath:"+filePath);
   }
   WritableWorkbook book=Workbook.createWorkbook(new File(filePath));
   WritableSheet sheet= book.createSheet("SheetName", 0); //创建sheet
   for(int col = 0;col<defaultTableModel.getColumnCount();col++){
    try{
       sheet.addCell(new Label(col,0,defaultTableModel.getColumnName(col))); //向excel中写入列标题
        }catch(Exception e2){
       e2.printStackTrace();
        }
    }  
    // 向excel写入数据
    for (int j = 0; j < defaultTableModel.getColumnCount(); j++)
    {
     //System.out.println("列数："+defaultTableModel.getColumnCount());
    
       for (int i = 0; i < stocker_name.size(); i++)
       {
        //System.out.println("行数："+defaultTableModel.getRowCount());
        
           try{  
            sheet.addCell(new Label(j,i+1,defaultTableModel.getValueAt(i, j).toString())); //向excel中写入内容
            System.out.println("第"+i+"行"+"第"+j+"列："+defaultTableModel.getValueAt(i, j).toString());
           }catch(Exception e1)
           {
            e1.printStackTrace();
           }
           
            }
        } 
         book.write();
         book.close();
         //JOptionPane.showMessageDialog(null, "文件导出成功"); 
   }catch(Exception e1){
    e1.printStackTrace();
   }

 }

利用jxl.jar包