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kezia simon
problem in setting the values from database
1 Answer(s)      a year and 3 months ago
Posted in : Java Beginners


hello friends, can anyone help me?? I am facing this problem for past one week. I could't set the values from database. here is the code:

private JTextField getJTextField1() {
        if(text == null) {
            text = new JTextField();
        }
        return text;
    }


    private AbstractAction getSearch() {
        if(search == null) {
            search = new AbstractAction("SEARCH", null) {
                /**
                 * 
                 */
                private static final long serialVersionUID = 1L;

                public void actionPerformed(ActionEvent evt) {          
                    try{
                         ResultSet rs;
                        String st1=text.getText();

                           Class.forName("com.mysql.jdbc.Driver");

                      Connection  con=DriverManager.getConnection("jdbc:mysql://192.168.36.1:3306/atmconsol","project","password");
                      PreparedStatement  pst=con.prepareStatement("select * from form1 where TerminalID=?");
                  System.out.println(st1);
                      pst.setString(1, st1);
                         JOptionPane.showMessageDialog(null,"Prepared Stmt after setting the values " + pst.toString());


                      rs = pst.executeQuery(); 

                      gui.display1 ts= new gui.display1();
                         ts.dis(st1);
                         System.out.println(ts);


                          }
                            catch (Exception e)
                            {
                            JOptionPane.showMessageDialog(null,"TRY AGAIN!!!Cannot find such ID!");
                            text .setText("");
                             text.requestFocus(true);
                            System.out.println("error while validating"+e);
                            e.printStackTrace();
                            System.out.println(e);  
                }

                }
            };
        }
        return search;
    }

} 

//**display1.java**//

void dis(String st1)
        {
        try
        {     
                 String st=td.getText();
                 String st2=make.getText();
                 String st3=proto.getText();
                 String emv=text.getText(); 
                 String st5=bnqry.getText();
                 String st6=fc.getText();
                 String st7=ft.getText();
                 String st8=pc.getText();
                 String st9=ms.getText();
                 String st10=cb.getText();
                 String st11=wd.getText();

                      Class.forName("com.mysql.jdbc.Driver").newInstance();
                         Connection connt = DriverManager.getConnection("jdbc:mysql://192.168.36.1:3306/atmconsol","project","password");
                         PreparedStatement pstmt = connt.prepareStatement("select TerminalId,make,protocol,EMVsupport,BalanceEnquiry,Fastcash,fundtransfer,chequebook,pinchange,ministatement,withdrawal from form1 where TerminalId=?;");

                        pstmt.setString(1, st1);
                         ResultSet rs = pstmt.executeQuery(); 
                         while(rs.next())
                         {
                             System.out.println("******* : "+rs.getString("TerminalId"));
                        td.setText(rs.getString(st));
                        make.setText(rs.getString(st2)); 
                        proto.setText(rs.getString(st3));                    
                        text.setText(rs.getString(emv)); 
                        bnqry.setText(rs.getString(st5)); 
                        fc.setText(rs.getString(st6)); 
                        ft.setText(rs.getString(st7)); 
                        pc.setText(rs.getString(st8)); 
                        ms.setText(rs.getString(st9)); 
                        cb.setText(rs.getString(st10)); 
                        wd.setText(rs.getString(st11)); 

                         }

                         JOptionPane.showMessageDialog(null,"Prepared Stmt after setting the values " + pstmt.toString());

        }catch(Exception ex)
{
                             JOptionPane.showMessageDialog(null,"Error!");
                             System.out.println("error while validating"+ex);
                             ex.printStackTrace();
}

}

can anyone help me out of this issue plzzz!!!! Thanks in advance!!!!


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View Answers

May 18, 2013 at 5:16 PM


hi friend,

You are trying to set the value of Terminalid in the SQL query to String put the ? between single quote ('). Probably error is generating from this statement.

Thanks.



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