Discussion :

[nadong94]

Bonjour à tous,

J'ai le problème suivant qui est peut-être assez claire mais je n'y arrive pas encore :

Code :

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Exception in thread "AWT-EventQueue-0" java.lang.IllegalStateException: Zip File is closed
	at org.apache.poi.openxml4j.util.ZipFileZipEntrySource.getEntries(ZipFileZipEntrySource.java:45)
	at org.apache.poi.openxml4j.opc.ZipPackage.getPartsImpl(ZipPackage.java:180)
	at org.apache.poi.openxml4j.opc.OPCPackage.getParts(OPCPackage.java:696)
	at org.apache.poi.openxml4j.opc.OPCPackage.open(OPCPackage.java:230)
	at org.apache.poi.openxml4j.opc.OPCPackage.open(OPCPackage.java:188)
	at org.apache.poi.POIXMLDocument.openPackage(POIXMLDocument.java:85)
	at org.apache.poi.xssf.usermodel.XSSFWorkbook.<init>(XSSFWorkbook.java:319)
	at EVENT.MyUtilityMethods.createTabPanel(MyUtilityMethods.java:71)
	at EVENT.MyActionEvent.btnLoad_click(MyActionEvent.java:67)
	at EVENT.MyActionEvent.actionPerformed(MyActionEvent.java:34)
	at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
	at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source)
	at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
	at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
	at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Source)
	at java.awt.AWTEventMulticaster.mouseReleased(Unknown Source)
	at java.awt.Component.processMouseEvent(Unknown Source)
	at javax.swing.JComponent.processMouseEvent(Unknown Source)
	at java.awt.Component.processEvent(Unknown Source)
	at java.awt.Container.processEvent(Unknown Source)
	at java.awt.Component.dispatchEventImpl(Unknown Source)
	at java.awt.Container.dispatchEventImpl(Unknown Source)
	at java.awt.Component.dispatchEvent(Unknown Source)
	at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
	at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
	at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
	at java.awt.Container.dispatchEventImpl(Unknown Source)
	at java.awt.Window.dispatchEventImpl(Unknown Source)
	at java.awt.Component.dispatchEvent(Unknown Source)
	at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
	at java.awt.EventQueue.access$000(Unknown Source)
	at java.awt.EventQueue$1.run(Unknown Source)
	at java.awt.EventQueue$1.run(Unknown Source)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.security.AccessControlContext$1.doIntersectionPrivilege(Unknown Source)
	at java.security.AccessControlContext$1.doIntersectionPrivilege(Unknown Source)
	at java.awt.EventQueue$2.run(Unknown Source)
	at java.awt.EventQueue$2.run(Unknown Source)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.security.AccessControlContext$1.doIntersectionPrivilege(Unknown Source)
	at java.awt.EventQueue.dispatchEvent(Unknown Source)
	at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
	at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
	at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
	at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
	at java.awt.EventDispatchThread.run(Unknown Source)

Et Maintenant la classe MyUtilityMethods :

Code :

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package EVENT;
 
import java.awt.Color;
import java.awt.Font;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.List;
 
import javax.swing.BorderFactory;
import javax.swing.JComponent;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTabbedPane;
import javax.swing.JTable;
import javax.swing.table.DefaultTableModel;
 
import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.openxml4j.exceptions.InvalidFormatException;
import org.apache.poi.xssf.usermodel.XSSFCell;
import org.apache.poi.xssf.usermodel.XSSFRow;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
 
/**
 * Some utility methods for the application
 * 
 * @author t0163126
 */
public class MyUtilityMethods {
 
	/**
         * Create  tabs based on file and panel 
         * 
         * @param tabPanel
         * @param file
         * @return
         */
	public JTabbedPane createJTabbed(List<JPanel> lstPanel, File file) {
 
		JTabbedPane tabbedPane = new JTabbedPane();
 
		for (JPanel panel : lstPanel) {
			int index = tabbedPane.getTabCount();
			JComponent tabPanel = createTabPanel(file);
			tabbedPane.addTab
			(
				panel.getName(), //tab name 
				null, //tab icon
				tabPanel, //Tabs panel for the JTable 
				panel.getToolTipText() //tab tool tip text
			);
		}
		return tabbedPane;
	}
 
	/**
         * Create a tab panel by excel feel
         * 
         * @param fileName
         * @param excelFile
         * @return
         */
	public JComponent createTabPanel(File excelFile) {
		JTable spreadsheet = new JTable();
		JPanel panel = null;
		XSSFWorkbook wb;
		XSSFSheet sheet;
 
		try {
			wb = new XSSFWorkbook(excelFile.getName());
			//Get the sheet number
			int nbFeuilles = wb.getNumberOfSheets();
			for (int i = 0; i < nbFeuilles; i++) {
				sheet = wb.getSheetAt(i);
				//Create one JTable by excel feel
				spreadsheet = createJTableWithExcel(excelFile, i);
 
				spreadsheet.setFont(new Font(Font.SERIF, Font.PLAIN, 10));
				JScrollPane elevator = new JScrollPane();
				elevator.setViewportView(spreadsheet);
				//Create a panel by excel feel number
				panel = new JPanel();
				panel.setBorder(BorderFactory.createTitledBorder(sheet.getSheetName()));
				panel.setBackground(Color.LIGHT_GRAY);
				panel.add(elevator);
			}
			wb.close();
		} catch (IOException e) {
			e.printStackTrace();
		}
		return panel;
	}
 
	/**
         * Create a JTable depending on the file and the entry sheet number
         * 
         * @param file
         * @param numSheet
         * @return
         */
	public static JTable createJTableWithExcel(File file, int numSheet) {
		// Create new table
		JTable table = new JTable();
		// Reading the excel file
		XSSFWorkbook wb;
		try {
			wb = new XSSFWorkbook(file);
			// Get the contents of the excel file according to the sheet number
			XSSFSheet sheet = wb.getSheetAt(numSheet);
 
			// Count the line number
			int nbRows = sheet.getLastRowNum();
			// Count the column number
			int nbColumns = numberMaxColumn(sheet);
 
			System.out.println("In the sheet " + sheet.getSheetName()
					+ " there are " + nbRows + " lines and " + nbColumns
					+ " columns");
 
			// Create new object array
			Object[][] obj = new Object[nbRows][nbColumns];
 
			// Array header
			String[] title = new String[nbColumns];
			for (int i = 0; i < nbColumns; i++) {
				title[i] = "#" + i;
			}
 
			// Browsing the sheet and retrieves the lines one by one
			for (int rowContent = 0; rowContent < nbRows; rowContent++) {
				XSSFRow row = sheet.getRow(rowContent);
 
				// Browsing the line and retrieves the columns
				if (row != null) {
					for (int columnContent = 0; columnContent < nbColumns; columnContent++) {
						// Retrieves the cell and this value
						XSSFCell cell = row.getCell((short) columnContent);
						Object value = contentCell(cell);
						// System.out.println(value.toString());
						obj[rowContent][columnContent] = value;
					}
				}
			}
 
			wb.close();
			table.setModel(new DefaultTableModel(obj, title));
		} catch (InvalidFormatException e) {
			e.printStackTrace();
		} catch (FileNotFoundException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		}
		return table;
	}
 
	/**
         * The cell can contain different type of value that should be specifically
         * recovered
         * 
         * @param cell
         * @return
         */
	private static Object contentCell(XSSFCell cell) {
		Object value = null;
 
		if (cell == null) {
			value = "";
		} else if (cell.getCellType() == HSSFCell.CELL_TYPE_BOOLEAN) {
			value = cell.getBooleanCellValue();
		} else if (cell.getCellType() == XSSFCell.CELL_TYPE_ERROR) {
			value = cell.getErrorCellValue();
		} else if (cell.getCellType() == XSSFCell.CELL_TYPE_FORMULA) {
			value = cell.getCellFormula();
		} else if (cell.getCellType() == XSSFCell.CELL_TYPE_NUMERIC) {
			value = cell.getNumericCellValue();
		} else if (cell.getCellType() == XSSFCell.CELL_TYPE_STRING) {
			value = cell.getStringCellValue();
		}
		return value;
	}
 
	/**
         * Retrieves the maximum number of column. If a line has 2 empty boxes at
         * the end , they are not taken into account. So to retrieve the number of
         * columns to initialize our table we must browse all lines
         * 
         * @param sheet
         * @return
         */
	private static int numberMaxColumn(XSSFSheet sheet) {
		int r = sheet.getLastRowNum();
		int max = 0;
		int s = 0;
		while (s < r) {
			if (sheet.getRow(s) != null) {
				int c = sheet.getRow(s).getLastCellNum();
				if (c > max) {
					max = c;
				}
			}
			s++;
		}
		return max + 1;
	}
}

Puis la méthode load_click de la classe MyActionEvent qui se déclanche lors d'un clique sur le bouton Load :

Code :

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private void btnLoad_click() 
	{
		JFileChooser fc = new MyFileChooser();
 
		//Open the dialog box
		int returnVal = fc.showOpenDialog(null);
		if (returnVal == JFileChooser.APPROVE_OPTION) {
			//if you validate
			MyUtilityMethods myMethods = new MyUtilityMethods();
 
			List<JPanel> lstPanel = (List<JPanel>) myMethods.createTabPanel(fc.getSelectedFile());
			myMethods.createJTabbed(lstPanel, fc.getSelectedFile());
			for (JPanel p : lstPanel) {
				System.out.println(p.getName());
			}
		} else if (returnVal == JFileChooser.CANCEL_OPTION) {
			//if you cancel
			System.out.println("You chose to cancel this action ");	
		}
	}

Il y a sans doute des truc pas très logique ou plus simple peut-être, alors n'hésitez pas à me le dire

Merci Beaucoup Pour Vos Aides