Spring MVC学习之——数据传递（在页面上添加数据）

Spring MVC之——数据传递

1.ModelAndView传递

• 编写controller

  @Controller
  @RequestMapping("/account")
  public class AccountController {
  
      //也可以不创建ModelAndView，直接在参数中指定
      @RequestMapping(value = "/findAccount9")
      public ModelAndView findAccount9(ModelAndView mv) {
          mv.addObject("msg", "欢迎你 springmvc");
          mv.setViewName("success");
          return mv;
      }
  }
  

• 在index.jsp里面定义超链接

  <a href="/account/findAccount9">ModelAndView参数传递</a>
  

Model传递

• 编写controller

  @Controller
  @RequestMapping("/account")
  public class AccountController {
  
      @RequestMapping(value = "/findAccount10")
      public String findAccount10(Model model) {
          model.addAttribute("msg", "欢迎你 springmvc");
          return "success";
      }
  }
  

• 在index.jsp里面定义超链接

  <a href="/account/findAccount10">Model参数传递</a>
  

ServletAPI传递

• 编写controller

  @Controller
  @RequestMapping("/account")
  public class AccountController {
  
      @RequestMapping("/findAccount11")
      public String findAccount11(HttpServletRequest request, 
                                  HttpServletResponse response){
          request.setAttribute("msg","欢迎你 springmvc");
          return "success";
      }
  }
  

• 在index.jsp里面定义超链接

  <a href="/account/findAccount11">ServletAPI传递</a>