在java swing 中实现动态创建按钮并绑定点击事件，为何不能实现？

Question

//内部类，实现创建button,兵绑定点击事件
class RentBtn extends JButton{

    public JButton getRentBtn(int x,int y,int weigth,int heigth,int shopId,Merchant merchant){
        int btn_x = x;
        int  btn_y = y;
        int  btn_weigth = weigth;
        int btn_heigth= heigth;
        int id = shopId;
        Merchant user = merchant;
        JButton jButton = new JButton("租用");
        jButton.setBounds(btn_x, btn_y, btn_weigth, btn_heigth);

        jButton.addActionListener(new ActionListener() {

            @Override
            public void actionPerformed(ActionEvent arg0) {
                Session session = null;
                Transaction transaction = null;
                try {
                    session = HibernateUtil.getSession();
                    transaction = session.beginTransaction();
                    transaction.begin();

                    String hql = "select s from Shop s where s.id=:id";
                    Shop shop = (Shop) session.createQuery(hql).setParameter("id", shopId);
                    shop.setMerchant(user);
                    transaction.commit();
                    session.save(shop);
                    ShopRent shopRent = new ShopRent(user);

                    JOptionPane jOptionPane = new JOptionPane("租用成功");

                } catch (Exception e) {
                    HibernateUtil.closeSession();
                    transaction.rollback();
                }
            }
        });
        return jButton;
    }

 for(int i=0;i<shops.size();i++)
        {
            name = shops.get(i).getId();
            map.put(i, name);
            propertyfee = shops.get(i).getPropertyfee();
            utilities = shops.get(i).getUtilities();
            rent = shops.get(i).getRent();

            shopname = new JTextField();
            shopname.setText(String.valueOf(name));
            shopname.setBounds(10, 84+i*30, 47, 21);
            add(shopname);
            shopname.setColumns(10);

            propertyfeeFiled = new JTextField();
            propertyfeeFiled.setText(String.valueOf(propertyfee));
            propertyfeeFiled.setColumns(10);
            propertyfeeFiled.setBounds(91, 84+i*30, 47, 21);
            add(propertyfeeFiled);

            utilitiesFiled = new JTextField();
            utilitiesFiled.setText(String.valueOf(utilities));
            utilitiesFiled.setColumns(10);
            utilitiesFiled.setBounds(177, 84+i*30, 47, 21);
            add(utilitiesFiled);

            rentFiled = new JTextField();
            rentFiled.setText(String.valueOf(rent));
            rentFiled.setColumns(10);
            rentFiled.setBounds(267, 84+i*30, 47, 21);
            add(rentFiled);

            RentBtn rentBtn = new RentBtn();
            JButton jButton = rentBtn.getRentBtn(356, 84+i*30, 72, 23, name,mer );
            add(jButton);
        }

实际运行效果是：按钮成功创建，但是点击按钮没有响应。想请问下有什么其他办法？

Answer 1

把try catch去掉，看下是不是你访问数据库的代码有问题。