public String testController(Model model){
model.addAttribute(attrName,attrValue);//相當(dāng)于ModelAndView的addObject方法
return "邏輯視圖名";
 }

public String testController(Model model){
 return "redirect:path";//path代表重定向的地址
 }

 public String testController(Model model){
 return "forward:path";//path代表轉(zhuǎn)發(fā)的地址
 }

request.getRequestDispatcher("轉(zhuǎn)發(fā)路徑").forward(request,response);

response.sendRedirect("重定向路徑");

response.setCharacterEncoding("UTF-8"); 
response.setContentType("application/json;charset=utf-8"); 
 response.getWriter.write("json串"); 

@RequestMapping("/list")
 public ModelAndView itemsList() throws Exception{  
 List<Items> list = itmesService.list();
 //創(chuàng)建ModelAndView視圖
 ModelAndView modelAndView = new ModelAndView();
 //將list數(shù)據(jù)添加到試圖里
 modelAndView.addObject("itemList", list);
 modelAndView.setViewName("itemList");//設(shè)置視圖的名稱，即返回到哪個(gè)頁面
 //由于有視圖解析器的作用，省去了前綴和后綴，其實(shí)訪問的頁面為（"/WEB-INF/jsp/itemList.jsp"）
 return modelAndView;
 }
 

@RequestMapping("/itemEdit/{id}")
 public String itemEdit(@PathVariable("id") Integer id, HttpServletRequest reuqest, 
  Model model) throws Exception{
 
 //String idStr = reuqest.getParameter("id");
 Items items = itmesService.findItemsById(id);
 //將items數(shù)據(jù)加到視圖中
 model.addAttribute("item", items);
 
 //這里返回editItem，在@Controller的注解下，回自動(dòng)添加前綴和后綴，實(shí)則是返回到頁面("/WEB-INF/jsp/editItem.jsp")
 return "editItem";
 }

public void update(Items items,HttpServletRequest request,HttpServletResponse response)throws Exception{
 //返回?cái)?shù)據(jù)，將items的內(nèi)容放入items里，jsp頁面調(diào)用items就行
 request.setAttribute("items", items);
 //返回指定的頁面
 //如果是void類型的話，就不會(huì)去調(diào)用SpringMvc的架構(gòu)，因此無法自動(dòng)加載視圖解析器，所以跳轉(zhuǎn)的
 //網(wǎng)頁名稱應(yīng)該為其全路徑名稱
 request.getRequestDispatcher("/WEB-INF/jsp/success.jsp").forward(request, response);
 }
就不會(huì)去調(diào)用SpringMvc的架構(gòu)，因此無法自動(dòng)加載視圖解析器，所以跳轉(zhuǎn)的
 //網(wǎng)頁名稱應(yīng)該為其全路徑名稱
 request.getRequestDispatcher("/WEB-INF/jsp/success.jsp").forward(request, response);
 }

@RequestMapping("atimynyc/getUser")
@ResponseBody
public User getUser(String id){
  User user = new User();
  user.setUserName = "Atimynyc";
  user.setUserAge = 18;
  user.setUserPhone = "123456789";
  return User;
}