我正在尝试创建一个连接MySQL数据库的java程序。但它给了我一个错误,"您的SQL语法错误",并指的是这一行:
String sql = "INSERT INTO items_in_hand (Item Name, Price (each), Quantity (available)) VALUES (?,?,?)";
这是块:
DefaultTableModel model = (DefaultTableModel) itemTable.getModel();
if(!txt_item.getText().trim().equals("")){
try{
String sql = "INSERT INTO items_in_hand (Item Name, Price (each), Quantity (available)) VALUES (?,?,?)";
st = con.prepareStatement(sql);
st.setString(1,txt_item.getText());
st.setString(2,txt_price.getText());
st.setString(3,txt_quantity.getText());
st.execute();
JOptionPane.showMessageDialog(null , "Saved.");
//model.addRow(new Object[] {txt_item.getText(),txt_price.getText(),txt_quantity.getText()});
}catch(Exception ex){
JOptionPane.showMessageDialog(null , ex);
}
}
有人可以帮忙吗?
答案 0 :(得分:1)
替换查询
String sql = "INSERT INTO items_in_hand (Item Name, Price (each), Quantity (available)) VALUES (?,?,?)";
喜欢以下
String sql = "INSERT INTO items_in_hand (Item, Price, Quantity) VALUES (?,?,?)";
假设Item, Price and Quantity
表中存在列items_in_hand
。