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- try{
- Class.forName("org.postgresql.Driver");
- con=DriverManager.getConnection("jdbc:postgresql://localhost:5432/ejemplo","postgres","199314");
- stmt = con.createStatement();
- String insert="insert into personas values('"+rut+"','"+nombres+"','"+apellidos+"','"+edad+"','"+sueldo+"')";
- String consulta="select from personas where rut='"+rut+"'";
- rs=stmt.executeQuery(consulta);
- if(rs.next()){
- JOptionPane.showMessageDialog(null, "El rut ya existe en la base de datos");
- }else{
- stmt.execute(insert);
- JOptionPane.showMessageDialog(null,"Datos ingresados correctamente");
- }
- con.close();
- }catch(Exception e){
- JOptionPane.showMessageDialog(null,"erro al conectar ala base de datos");
- }
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