public void addItem(Item toAdd) { connect(); try { // Create a stmt object stmt = con.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE, ResultSet.CONCUR_READ_ONLY); // Query the database, storing the result // in an object of type ResultSet rs = stmt.executeQuery( "SELECT * from Item WHERE " + "Name='" + toAdd.getName() + "' AND " + "LocationId='" + toAdd.getLocationId() + "'"); // Check if User is already in the database while (rs.next()) { System.out.println("Item already exists in DB."); disconnect(); return; } // end while loop stmt.executeUpdate( "INSERT INTO Item(Name, LocationId) VALUES ('" + toAdd.getName() + "', '" + toAdd.getLocationId() + "')"); } catch (Exception e) { e.printStackTrace(); } // end catch finally { disconnect(); } }
public static void main(String[] args) { MySQLHandler handler = new MySQLHandler(); // Create data structures to be added to DB User user = new User("Wil", "Burns", "*****@*****.**", "password"); City city = new City("Charlottesville", "VA", "22903"); Store store = new Store("Harris Teeter", "975 Emmet Street North"); Location location = new Location("1", "1"); Item item1 = new Item("Milk", "1"); Item item2 = new Item("Eggs", "1"); Item item3 = new Item("Bacon", "1"); Line line1 = new Line("1", "1", "3.39", "2"); Line line2 = new Line("1", "2", "1.89", "1"); Line line3 = new Line("1", "3", "2.99", "3"); // Perform inserts handler.addUser(user); handler.addCity(city); handler.addStore(store); handler.addLocation(location); handler.addItem(item1); handler.addItem(item2); handler.addItem(item3); handler.addLine(line1); handler.addLine(line2); handler.addLine(line3); handler.addReceipt(new Receipt("1", "1", "2009-12-07")); user = handler.getUser("*****@*****.**"); System.out.println("User Id: " + user.getUserId()); // Print user's receipt list ArrayList<Receipt> receipts = handler.getReceipts(user); for (Receipt toPrint : receipts) { System.out.println("Receipt id:" + toPrint.getReceiptId()); ArrayList<Line> lines = handler.getLines(toPrint); for (Line line : lines) { Item item = handler.getItem(line); System.out.println( "Item: " + item.getName() + " Price: " + line.getPrice() + " Quantity: " + line.getQuantity()); } } }