SSM框架DEMO-Intellij IDEA

package com.cn.hnust.controller; import javax.annotation.Resource; import javax.servlet.http.HttpServletRequest; import org.springframework.stereotype.Controller; import org.springframework.ui.Model; import org.springframework.web.bind.annotation.PathVariable; import org.springframework.web.bind.annotation.RequestMapping; import com.cn.hnust.pojo.User; import com.cn.hnust.service.IUserService; import org.springframework.web.bind.annotation.RequestParam; import org.springframework.web.bind.annotation.ResponseBody; @Controller @RequestMapping("/user") public class UserController { @Resource private IUserService userService; // @RequestMapping("/userInfo") // public String userInfo(HttpServletRequest request,Model model){ // int userId = Integer.parseInt(request.getParameter("id")); // User user = this.userService.getUserById(userId); // model.addAttribute("user", user); // return "userInfo"; // } @RequestMapping("/userInfo") public String userInfo(@RequestParam int id, Model model){ // int userId = Integer.parseInt(request.getParameter("id")); User user = this.userService.getUserById(id); model.addAttribute("user", user); return "userInfo"; } @RequestMapping(path="/userInfoPath/{id}") public String userInfoPath(@PathVariable int id,Model model){ User user = this.userService.getUserById(id); model.addAttribute("user",user); return "userInfo"; } @ResponseBody @RequestMapping(path="/userInfoJson/{id}") public User userInfoJson(@PathVariable int id){ User user = this.userService.getUserById(id); return user; } }