关于springMVC中ModelAndView向web传值得问题

最新推荐文章于 2022-08-09 11:00:35 发布

原创最新推荐文章于 2022-08-09 11:00:35 发布 · 780 阅读

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第一种：

@Controller
public class Test{
@Resource
private SelctService selectService;
@RequestMapping("/test/select")
    public ModelAndView passValue(String id){
        ModelAndView mav =new ModelAndView();
        User user=selectService.queryById(id);
        mav.addObject("user",user);
        mav.setViewName("index");
        return mav;
    }
}

第二种：

@Controller
public class Test{
@Resource
private SelctService selectService;
@RequestMapping("/test/select")
    public ModelAndView passValue(String id){
    Map<String,Object> map = new hashMap<String,Object>; 
        User user=selectService.queryById(id);
        map.put("user",user);
        return forword("index", map);
    }
}

第三种：

@Controller
public class Test{
@Resource
private SelctService selectService;
@RequestMapping("/test/select")
public ModelAndView passValue(String id){
    Map<String,Object> data = new hashMap<String,Object>; 
        User user=selectService.queryById(id);
        data.put("user",user);
    return new ModelAndView("index",data);
    }
}

第四种：//这种属于返回String,仅有ModelAndMap

@Controller
public class Test{
@Resource
private SelctService selectService;
@RequestMapping("/test/select")
public String passValue(String id，ModelMap moap){
    Map<String,Object> data = new hashMap<String,Object>; 
        User user=selectService.queryById(id);
        moap.put("user",user);//或者moap.addAtribute("user",user);
    return "index";
    }
}

第五种：

public ModelAndView login(){  
   RedirectView view = new RedirectView("regirst.do");  
   return new ModelAndView(view);  
}