Servlet容器获取Spring中配置的对象

//获取FileBeanAction实例,使用WebApplicatonContextUtils静态方法 getRwquireWebApplicationContext

如下:

WebApplicationContext wac =

                         WebApplicationContextUtils.getRequiredWebApplicationContext(getServletContext());
  UserDao userDao = (UserDao)wac.getBean("userDao");
  User user = new User();
  user.setUserName("三零");
  try{
       userDao.save(user);
  }catch(Exception e){
      e.printStackTrace();
  }

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