Question

当我通过文本框传递param值来调用表时，我有双字段的derby表我有错误消息说明 “无法将给定对象格式化为数字” 我的呼叫功能如下：我很长时间没有运气，我害怕一些java和SO专家倾向于用来阻止他们的主要询问

public void  LoadLineFromDatabase() {

          String host1 =  Pathhost; // String host1 = "jdbc:derby://"+ipconfigure.s2+":1527//accountsdb";
           String uName1="accounts";
           String uPass1="accounts";
           String sql1;

    try {
        con1=DriverManager.getConnection(host1,uName1 ,uPass1);
        BigDecimal val = new BigDecimal(jTsaleitemNo.getText());

         sql1="select * from items inner join barcodes on barcodes.item=items.item_id Where barcodes.barcode= " +val+ " ";

         stmt1=con1.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE, ResultSet.CONCUR_UPDATABLE);
        rs=stmt1.executeQuery(sql1);
  DefaultTableModel model = (DefaultTableModel) jTblSales.getModel();
    int j=0;
    //double dRtotal=0;
   // double cRtotal=0;
 //  int j=0;
          while (rs.next()) {
             ++j;
           }
           rs.beforeFirst();
           if(j==0){
               JOptionPane.showMessageDialog(null, "No record with this barcode No.");
               return;
         }
    while (rs.next()){
         JOptionPane.showMessageDialog(null, Pathhost);
       // الرمز-الصنف-العدد-سعر الوحدة-الجملة
        model.addRow(new Object[]{rs.getString("item_secprice"), rs.getString("item_secprice"), rs.getString("item_qnt"),rs.getString("item_name"),rs.getString("item_id")});

        } 


    }catch (SQLException ex) {
        Logger.getLogger(FrmJournal.class.getName()).log(Level.SEVERE, null, ex);
        JOptionPane.showMessageDialog(null, "PLS correct No.");
    }

}

这里有完整的错误线程“AWT-EventQueue-0”中的异常java.lang.IllegalArgumentException：无法将给定的Object格式化为数字 at java.text.DecimalFormat.format（DecimalFormat.java:507）at java.text.DecimalFormat.format（DecimalFormat.java:507） at java.text.Format.format（Format.java:157） at javax.swing.plaf.synth.SynthTableUI $ SynthTableCellRenderer.configureValue（SynthTableUI.java:802） at javax.swing.plaf.synth.SynthTableUI $ SynthTableCellRenderer.getTableCellRendererComponent（SynthTableUI.java:789）在javax.swing.JTable.prepareRenderer（JTable.java:5723）在javax.swing.plaf.synth.SynthTableUI.paintCell（SynthTableUI.java:683）在javax.swing.plaf.synth.SynthTableUI.paintCells（SynthTableUI.java:580）在javax.swing.plaf.synth.SynthTableUI.paint（SynthTableUI.java:364）在javax.swing.plaf.synth.SynthTableUI.update（SynthTableUI.java:275）在javax.swing.JComponent.paintComponent（JComponent.java:780）在javax.swing.JComponent.paint（JComponent.java:1056）在javax.swing.JComponent.paintChildren（JComponent.java:889）在javax.swing.JComponent.paint（JComponent.java:1065）在javax.swing.JViewport.paint（JViewport.java:728）在javax.swing.JComponent.paintChildren（JComponent.java:889）在javax.swing.JComponent.paint（JComponent.java:1065）在javax.swing.JComponent.paintChildren（JComponent.java:889）在javax.swing.JComponent.paint（JComponent.java:1065）在javax.swing.JComponent.paintToOffscreen（JComponent.java:5210） at javax.swing.RepaintManager $ PaintManager.paintDoubleBuffered（RepaintManager.java:1579）在javax.swing.RepaintManager $ PaintManager.paint（RepaintManager.java:1502）在javax.swing.RepaintManager.paint（RepaintManager.java:1272）在javax.swing.JComponent._paintImmediately（JComponent.java:5158）在javax.swing.JComponent.paintImmediately（JComponent.java:4969）在javax.swing.RepaintManager $ 4.run（RepaintManager.java:831）在javax.swing.RepaintManager $ 4.run（RepaintManager.java:814） at java.security.AccessController.doPrivileged（Native Method） at java.security.ProtectionDomain $ JavaSecurityAccessImpl.doIntersectionPrivilege（ProtectionDomain.java:76）在javax.swing.RepaintManager.paintDirtyRegions（RepaintManager.java:814）在javax.swing.RepaintManager.paintDirtyRegions（RepaintManager.java:789）在javax.swing.RepaintManager.prePaintDirtyRegions（RepaintManager.java:738）在javax.swing.RepaintManager.access $ 1200（RepaintManager.java:64）在javax.swing.RepaintManager $ ProcessingRunnable.run（RepaintManager.java:1732） at java.awt.event.InvocationEvent.dispatch（InvocationEvent.java:311） at java.awt.EventQueue.dispatchEventImpl（EventQueue.java:756） 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 $ JavaSecurityAccessImpl.doIntersectionPrivilege（ProtectionDomain.java:76） at java.awt.EventQueue.dispatchEvent（EventQueue.java:726） 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）在java.awt.EventDispatchThread.run（EventDispatchThread.java:82）

无法通过java netbeans

0 个答案: