Question

在我的项目中，我在公司和location之间有一对多的映射。虽然添加位置我想要公司对象。我有两个不同的公司和位置控制器

在公司控制器中：
addCompany

@RequestMapping(value = "/add", method = RequestMethod.POST)
public String addCompany(@ModelAttribute("company")
Company company, BindingResult result,Model model) {
    companyService.addCompany(company);
   return "companyPage";
  }

updateCompany

@RequestMapping(value = "/update", method = RequestMethod.POST)
public String updateCompany(@ModelAttribute("company")
Company company, BindingResult result,@RequestParam(value = "submitVal") String updateOrRestore
,Model model) {

    if (updateOrRestore.equalsIgnoreCase("update")) {
            companyService.updateCompany(company);
            model.addAttribute("location", new Location());

        } else if (updateOrRestore.equalsIgnoreCase("restore")) {
            Company prevCompany = companyService.restoreCompany();
            model.addAttribute("company", prevCompany);
            model.addAttribute("location", new Location());
        }

      return "companyPage";
}

位置控制器：
addLocation

@RequestMapping(value="/addLocation", method = RequestMethod.POST )
public String addLocation(@ModelAttribute("location")
Location location,BindingResult reult, Model model){
    logger.info("Location is added"+location);
    //Here b4 adding location in db i want to set company obj
    //location.setCompany(company);
    locationService.addLocation(location);
}

如何在公司控制器操作中获取保存或更新的公司对象？

Answer 1

在IF的帮助下从DB获取Company对象。您必须在表单帖子中的隐藏输入框中保留此ID，并在控制器中执行，如下所示

@RequestMapping(value="/addLocation", method = RequestMethod.POST )
public String addLocation(@ModelAttribute("location")
Location location,BindingResult reult, Model model,@requestParam("cmpID") long ID){
    //Company companyObj=get from DB with help of ID
    //location.setCompany(companyObj);
    locationService.addLocation(location);
    return "yourview";
}

将对象从一个控制器操作传递到spring mvc3中的另一个控制器操作

1 个答案: