1、基本屬性
private User user;//用於實現save
private Long id;//用於實現刪、改、查(findById()的情況)
2、CRUD模板
public String list() {
List<User> userList = userService.findAll();
ActionContext.getContext().put("userList", userList);
return "list";
}
public String add() {
userService.save(user);
return "toList";
}
public String addUI() {
return "saveUI";
}
public String update() {
User user1 = userService.findById(id);
user1.setName(user.getName());
user1.setAge(user.getAge());
user1.setSalary(user.getSalary());
userService.update(user1);
return "toList";
}
public String updateUI() {
user = userService.findById(id);
return "saveUI";
}
public String delete() {
userService.deleteById(id);
return "toList";
}
3、底層實現
@Resource
private SessionFactory sessionFactory;
public Session getSession() {
return sessionFactory.getCurrentSession();
}
1)增
getSession().save(user);
2)刪
User user = findById(id);
getSession().delete(user);
3)改
getSession().update(user1);
4)
查:
getSession().get(User.class, id)//根據id進行查詢
getSession().createQuery("from User").list()//查詢所有