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| public class Export_data extends HttpServlet
{
private static final long serialVersionUID = 1L;
/**
* @see HttpServlet#HttpServlet()
*/
public Export_data()
{
super();
}
/**
* @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse
* response)
*/
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException
{
}
/**
* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse
* response)
*/
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException
{
try
{
//création nom de fichier
String FileName = "Export_DELAI_";
String format = "ddMMyyHmmss";
java.text.SimpleDateFormat formater = new java.text.SimpleDateFormat(format);
java.util.Date date = new java.util.Date();
FileName += formater.format(date);
FileName += ".xls";
// chemin du ficher.
String FilePathAndName = "C:\\Temp\\" + FileName;
FileOutputStream fileOut = new FileOutputStream(FilePathAndName);
//création éléments Excels.
HSSFWorkbook workbook = new HSSFWorkbook();
HSSFSheet worksheet = workbook.createSheet("POI Worksheet");
worksheet.setColumnWidth((short) 0, (short) (15 * 256));
worksheet.setColumnWidth((short) 1, (short) (14 * 256));
worksheet.setColumnWidth((short) 2, (short) (20 * 256));
worksheet.setColumnWidth((short) 3, (short) (20 * 256));
worksheet.setColumnWidth((short) 4, (short) (17 * 256));
worksheet.setColumnWidth((short) 5, (short) (20 * 256));
worksheet.setColumnWidth((short) 6, (short) (20 * 256));
worksheet.setColumnWidth((short) 7, (short) (16 * 256));
worksheet.setColumnWidth((short) 8, (short) (14 * 256));
worksheet.setColumnWidth((short) 9, (short) (17 * 256));
// création de la première ligne
HSSFRow initialRow = worksheet.createRow((short) 0);
HSSFCell initialCell = null;
HSSFCellStyle EnTeteCellStyle = workbook.createCellStyle();
HSSFFont font = workbook.createFont();
font.setFontName("Trebuchet MS");
font.setColor(HSSFColor.WHITE.index);
HSSFPalette palette = workbook.getCustomPalette();
palette.setColorAtIndex(HSSFColor.RED.index, (byte) 163, (byte) 2, (byte) 52);
EnTeteCellStyle.setFont(font);
EnTeteCellStyle.setFillForegroundColor(HSSFColor.RED.index);
EnTeteCellStyle.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND);
EnTeteCellStyle.setBorderBottom(HSSFCellStyle.BORDER_MEDIUM);
EnTeteCellStyle.setBorderLeft(HSSFCellStyle.BORDER_MEDIUM);
EnTeteCellStyle.setBorderRight(HSSFCellStyle.BORDER_MEDIUM);
EnTeteCellStyle.setBorderTop(HSSFCellStyle.BORDER_MEDIUM);
// initialCell.setCellStyle(EnTeteCellStyle);
//récupération des noms de colonnes
DBConnection conn = new DBConnection();
ResultSet dataTab = conn.getDataExport();
ResultSetMetaData rsmd = dataTab.getMetaData();
int columnCount = rsmd.getColumnCount();
for (int i = 1; i < columnCount + 1; i++)
{
String name = rsmd.getColumnName(i);
initialCell = initialRow.createCell((short) i);
initialCell.setCellValue(new HSSFRichTextString(rsmd.getColumnName(i)));
initialCell.setCellStyle(EnTeteCellStyle);
}
// insertion des données dans le documents excel.
HSSFCellStyle DataCellStyle = workbook.createCellStyle();
HSSFFont Datafont = workbook.createFont();
Datafont.setFontName("Trebuchet MS");
DataCellStyle.setFont(Datafont);
DataCellStyle.setFillForegroundColor(HSSFColor.WHITE.index);
DataCellStyle.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND);
DataCellStyle.setBorderBottom(HSSFCellStyle.BORDER_MEDIUM);
DataCellStyle.setBorderLeft(HSSFCellStyle.BORDER_MEDIUM);
DataCellStyle.setBorderRight(HSSFCellStyle.BORDER_MEDIUM);
DataCellStyle.setBorderTop(HSSFCellStyle.BORDER_MEDIUM);
int nbreRow = 1;
while (dataTab.next())
{
nbreRow++;
HSSFRow currentrow = worksheet.createRow((short) nbreRow);
HSSFCell currentCell = null;
for (int j = 1; j <= columnCount; j++)
{
System.out.print("\n\t valeur :" + dataTab.getString(j));
currentCell = currentrow.createCell((short) j);
currentCell.setCellStyle(DataCellStyle);
currentCell.setCellValue(new HSSFRichTextString(dataTab.getString(j)));
}
}
workbook.write(fileOut);
fileOut.flush();
fileOut.close();
//Ouverture du fichier dans une popup.
File myfile = new File(FilePathAndName);
response.setContentType("text/xls");
response.setHeader("Content-Disposition", "attachment; filename=" + FileName);
InputStream in = new FileInputStream(myfile);
ServletOutputStream outs = response.getOutputStream();
try
{
int bit = in.read();
while ((bit) >= 0)
{
outs.write(bit);
bit = in.read();
}
}
catch (Exception e)
{
e.printStackTrace(System.out);
}
outs.flush();
outs.close();
in.close();
conn.close();
}
catch (FileNotFoundException e)
{
e.printStackTrace();
}
catch (IOException e)
{
e.printStackTrace();
}
catch (SQLException e)
{
e.printStackTrace();
}
catch (Exception e)
{
e.printStackTrace();
}
}
} |
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