從JTable Java導出到Excel問題

我試圖導出jTable輸出到Excel，輸出文件在路徑上創建，但沒有我的數據，我得到下面異常我試了很多找到任何工作代碼與我，但始終我得到了不同的問題。請在下面檢查我的代碼，並給我一個答案從JTable Java導出到Excel問題

Exception in thread "AWT-EventQueue-0" java.lang.AbstractMethodError: gnu.xml.dom.DomDocument.getXmlStandalone()Z 
at com.sun.org.apache.xalan.internal.xsltc.trax.DOM2TO.setDocumentInfo(DOM2TO.java:377) 
at com.sun.org.apache.xalan.internal.xsltc.trax.DOM2TO.parse(DOM2TO.java:131) 
at com.sun.org.apache.xalan.internal.xsltc.trax.DOM2TO.parse(DOM2TO.java:98) 
at com.sun.org.apache.xalan.internal.xsltc.trax.TransformerImpl.transformIdentity(TransformerImpl.java:699) 
at com.sun.org.apache.xalan.internal.xsltc.trax.TransformerImpl.transform(TransformerImpl.java:743) 
at com.sun.org.apache.xalan.internal.xsltc.trax.TransformerImpl.transform(TransformerImpl.java:357) 
at org.apache.poi.openxml4j.opc.StreamHelper.saveXmlInStream(StreamHelper.java:80) 
at org.apache.poi.openxml4j.opc.internal.marshallers.ZipPartMarshaller.marshallRelationshipPart(ZipPartMarshaller.java:174) 
at org.apache.poi.openxml4j.opc.ZipPackage.saveImpl(ZipPackage.java:464) 
at org.apache.poi.openxml4j.opc.OPCPackage.save(OPCPackage.java:1441) 
at org.apache.poi.POIXMLDocument.write(POIXMLDocument.java:212) 
at newtimesheet.ImpMyWork.jButton7ActionPerformed(ImpMyWork.java:1021) 
at newtimesheet.ImpMyWork.access$1900(ImpMyWork.java:44) 
at newtimesheet.ImpMyWork$17.actionPerformed(ImpMyWork.java:461) 
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2022) 
at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2346) 
at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:402) 
at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259) 
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:252) 
at java.awt.Component.processMouseEvent(Component.java:6525) 
at javax.swing.JComponent.processMouseEvent(JComponent.java:3324) 
at java.awt.Component.processEvent(Component.java:6290) 
at java.awt.Container.processEvent(Container.java:2234) 
at java.awt.Component.dispatchEventImpl(Component.java:4881) 
at java.awt.Container.dispatchEventImpl(Container.java:2292) 
at java.awt.Component.dispatchEvent(Component.java:4703) 
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4898) 
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4533) 
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4462) 
at java.awt.Container.dispatchEventImpl(Container.java:2278) 
at java.awt.Window.dispatchEventImpl(Window.java:2750) 
at java.awt.Component.dispatchEvent(Component.java:4703) 
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:758) 
at java.awt.EventQueue.access$500(EventQueue.java:97) 
at java.awt.EventQueue$3.run(EventQueue.java:709) 
at java.awt.EventQueue$3.run(EventQueue.java:703) 
at java.security.AccessController.doPrivileged(Native Method) 
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:75) 
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:86) 
at java.awt.EventQueue$4.run(EventQueue.java:731) 
at java.awt.EventQueue$4.run(EventQueue.java:729) 
at java.security.AccessController.doPrivileged(Native Method) 
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:75) 
at java.awt.EventQueue.dispatchEvent(EventQueue.java:728) 
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201) 
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116) 
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105) 
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101) 
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93) 
at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)

，我使用Apache POI 3.13與下面的代碼

private void jButton7ActionPerformed(java.awt.event.ActionEvent evt) {           
    Workbook wb = new XSSFWorkbook(); 
    Sheet sheet = wb.createSheet(); 
    Row row = sheet.createRow(0); 
    TableModel model = jTable1.getModel(); 
    for (int i = 0; i < model.getColumnCount(); i++) { 
     row.createCell(i).setCellValue(model.getColumnName(i)); 
    } 
    for (int i = 0; i < model.getRowCount(); i++) { 
     row = sheet.createRow(i + 1); 
     for (int j = 0; j < model.getColumnCount(); j++) { 
      row.createCell(j).setCellValue(
        model.getValueAt(i, j).toString() 
      ); 
     } 
    } 
    FileOutputStream fileOut; 
    try { 
     fileOut = new FileOutputStream("D:\\filename.xlsx"); 
     wb.write(fileOut); 
     fileOut.close(); 
    } catch (FileNotFoundException ex) { 
     Logger.getLogger(ImpMyWork.class.getName()).log(Level.SEVERE, null, ex); 
    } catch (IOException ex) { 
     Logger.getLogger(ImpMyWork.class.getName()).log(Level.SEVERE, null, ex); 
    } 

}

來源

2015-12-15 Eysawy Mohamed

我這裏有

兩個問題對於第一個問題，我發現這個回答

1-這是某種配置問題，當您在運行它時從類路徑中的代碼編譯代碼時，在類路徑上具有不同的JAR。您可以同時在這個環節

exception creating xml file

檢查，我使用的是與Apache POI-3.13庫發生衝突的一些java的流程圖庫，所以我刪除它和它的工作

2 - 你應該取代這些代碼線

row.createCell(j).setCellValue(
    model.getValueAt(i, j).toString()

通過

if (model.getValueAt(i, j) != null) { 
    val = model.getValueAt(i, j).toString(); 
    } else { 
    val = "NULL"; //you can change value to any thing you want to represent null values 
      } 
    row.createCell(j).setCellValue(val);

避免空指針異常錯誤

這是因爲如果你允許你的數據庫空值，你會得到空指針異常

來源

2015-12-28 18:41:10

從JTable Java導出到Excel問題

回答

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