使Spring 3 MVC控制器方法事务化

Question

我正在使用Spring3.1并编写了我的DAO和服务层（事务性）。

但是，在一个特殊情况下，为了避免惰性初始化异常，我必须创建一个spring mvc请求处理程序method@transactional。但无法将事务附加到该方法。方法名为ModelAndView home（HttpServletRequest request、HttpServletResponse response）。http://forum.springsource.org/showthread.php?46814-transaction-in-mvc-controller在此链接中，似乎不可能将事务（默认情况下）附加到mvc方法。该链接中建议的解决方案似乎适用于Spring2.5（重写handleRequest）。我们会非常感激你的帮助。谢谢

@Controller
public class AuthenticationController { 
@Autowired
CategoryService categoryService;    
@Autowired
BrandService brandService;
@Autowired
ItemService itemService;

@RequestMapping(value="/login.html",method=RequestMethod.GET)
ModelAndView login(){       
    return new ModelAndView("login.jsp");       
}   
@RequestMapping(value="/home.html",method=RequestMethod.GET)
@Transactional
ModelAndView home(HttpServletRequest request, HttpServletResponse response){
    List<Category> categories = categoryService.readAll();
    request.setAttribute("categories", categories);     
    List<Brand> brands = brandService.readAll();
    request.setAttribute("brands", brands);     
    List<Item> items = itemService.readAll();
    request.setAttribute("items", items);
    Set<Image> images = items.get(0).getImages();
    for(Image i : images ) {
        System.out.println(i.getUrl());
    }
    return new ModelAndView("home.jsp");    
}

Answer 1

您需要实现一个接口,使Spring具有可以用作代理接口的功能：

@Controller
public interface AuthenticationController {
  ModelAndView home(HttpServletRequest request, HttpServletResponse response);
}

@Controller
public class AuthenticationControllerImpl implements AuthenticationController {

@RequestMapping(value="/home.html",method=RequestMethod.GET)
@Transactional
@Override
ModelAndView home(HttpServletRequest request, HttpServletResponse response){
.....
}
}