SpringMvc接收参数方法总结(必看篇)

public ModelAndView test1(HttpServletRequest req){    String userName = req.getParameter("userName");    String password = req.getParameter("password");    System.out.println(userName);    System.out.println(password);    return new ModelAndView("jsp/hello");  }

 public ModelAndView test2(String userName,      @RequestParam("password") String pwd){    System.out.println(userName+","+pwd);    return new ModelAndView("jsp/hello");  }

 public ModelAndView test3(User user){    System.out.println(user);    return new ModelAndView("jsp/hello");  }

 /**  * 使用ModelAndView传出参数 内部 HttpServletRequest的Attribute传递 到jsp页面　　　* ModelAndView(String viewName,Map data)data是处理结果  */@RequestMapping("action")public ModelAndView test4(User user){   Map<String, Object> data = new HashMap<String, Object>();   data.put("user", user);   return new ModelAndView("jsp/hello",data);}

/**   * session存储  可以使用HttpServletRequest的getSession方法访问   */  @RequestMapping("action")  public ModelAndView test7(HttpServletRequest req){    HttpSession session = req.getSession();    session.setAttribute("salary", 6000.0);    return new ModelAndView("jsp/hello");  }

@RequestMapping("/updateitem")//spirngMvc可以直接接收pojo类型:要求页面上input框的name属性名称必须等于pojo的属性名称public ModelAndView updateitem(Items items){ itemsService.updateitems(items); //不可以加斜杠 解析不了 itemList.actionreturn new ModelAndView(new RedirectView("itemList.action"));}

@RequestMapping("/updateitem")//spirngMvc可以直接接收pojo类型:要求页面上input框的name属性名称必须等于pojo的属性名称public String updateitem(Items items){ itemsService.updateitems(items);//重定向到action 可以加斜杠 redirect:/itemList.action 解析的了return "redirect:itemList.action";}