使用maven搭建的ssm框架

package com.demo.controller; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Controller; import org.springframework.ui.Model; import org.springframework.web.bind.annotation.RequestMapping; import com.demo.service.IUsersService; @Controller public class UsersController { @Autowired IUsersService usersService; @RequestMapping("/login") public String login(String name,String password,Model model){ System.out.println(name); if(usersService.login(name)!=null && password.equals(usersService.login(name).getPassword())){ model.addAttribute("message","Hello World!"); }else{ model.addAttribute("message","Error!"); } return "index"; } }