Question

我已经制作了某些jtextfield，jRadioButtons和一些文本区域。我希望它们插入在这些SQL数据库中输入的数据。我做了以下代码：

Connection conn = null;
    //Statement stm = null;
    PreparedStatement pst = null;
    ResultSet rs = null;
    try{

        Class.forName("oracle.jdbc.OracleDriver");
        System.out.println("Driver Loaded.");
        conn = DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:orcl", "hr", "hr");
        System.out.println("Driver Connected.");
        pst=conn.prepareStatement("insert into directorsdb (DIRECTOR_NAME, DOB, DIN, PAN, UIN, BIRTH_PLACE, PASSPORT, DRIVING_LIC, NATIONALITY, OCCUPATION, OCCUPATION_COMPANY, DESIGNATION, QUALIFICATION, ADDRESS_OFF, ADDRESS_RESI, CONTACT_HOME, CONTACT_WORK, CONTACT_MOBILE, EMAIL_PERSONAL, EMAIL_WORK, EMAIL_OTHER, SECRETARY_NAME, SECRETARY_CONTACT, SECRETARY_EMAIL, DSC, DSC_EXPIRY, FATHER_NAME, MOTHER_NAME, APPOINTMENT_DATE, POSITION_BOARD, CESSATION_DATE, CESSATION_REASON, PROMOTER, INDEPENDENT_DIRECTOR, ABOUT)"
                                  + "values("+jFormattedTextField1.getText()+"','"+jDateChooser1.getDate()+"','"+DIN.getText()+"','"+PAN.getText()+"','"+UIN.getText()+"','"+jFormattedTextField4.getText()+"','"+passportno.getText()+"','"+dlicense.getText()+"','"+jFormattedTextField5.getText()+"','"+jFormattedTextField6.getText()+"','"+jFormattedTextField7.getText()+"','"+jFormattedTextField8.getText()+"','"+jFormattedTextField9.getText()+"','"+officeadd.getText()+"','"+residentialadd.getText()+"','"+jFormattedTextField12.getText()+"','"+jFormattedTextField13.getText()+"','"+jFormattedTextField14.getText()+"','"+jFormattedTextField15.getText()+"','"+jFormattedTextField16.getText()+"','"+jFormattedTextField17.getText()+"','"+jFormattedTextField18.getText()+"','"+jFormattedTextField19.getText()+"','"+jFormattedTextField20.getText()+"','"+buttonGroup1.getSelection().getActionCommand()+"','"+jDateChooser2.getDate()+"','"+jFormattedTextField22.getText()+"','"+jFormattedTextField23.getText()+"','"+jDateChooser3.getDate()+"','"+jFormattedTextField25.getText()+"','"+jDateChooser4.getDate()+"','"+jTextArea2.getText()+"','"+buttonGroup2.getSelection().getActionCommand()+"','"+buttonGroup3.getSelection().getActionCommand()+"','"+jTextArea1.getText()+"',')");

        pst.execute();

        if(pst.execute()==true){
         JOptionPane.showMessageDialog( null, "Saved Successfully!!");   
        }else{
            JOptionPane.showMessageDialog( null, "Saved Successfully!!");
        }

    }catch(SQLException e){
        System.err.println(e.fillInStackTrace());
    }
     catch(ClassNotFoundException ex){
         System.err.println(ex);
     }

我得到的例外是：

SQLException: Missing IN or OUT parameter at index:: 1

帮我纠正错误。

Answer 1

您提供的值多于SQL中的列数。

使用PrepareStatement时，请在SQL中使用占位符以避免SQL注入。

String selectSQL = "SELECT USER_ID, USERNAME FROM DBUSER WHERE USER_ID = ? and NAME = ?";
PreparedStatement preparedStatement = dbConnection.prepareStatement(selectSQL);
preparedStatement.setInt(1, 1001);
preparedStatement.setString(2, "test");
ResultSet rs = preparedStatement.executeQuery(selectSQL);

更新时：

String updateTableSQL = "UPDATE DBUSER SET USERNAME = ? WHERE USER_ID = ?";
PreparedStatement preparedStatement = dbConnection.prepareStatement(updateTableSQL);
preparedStatement.setString(1, "value");
preparedStatement.setInt(2, 1001);

preparedStatement .executeUpdate();

SQLException：在index :: 1处缺少IN或OUT参数

1 个答案: