package com.shop.controller; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestParam; import com.shop.po.User; import com.shop.service.UserService; @Controller public class ajaxController { @Autowired private UserService userService; @RequestMapping("/loginFindByid") public void loginFindByid(HttpServletRequest request, HttpServletResponse response, @RequestParam String username) { response.setContentType("text/html;charset=UTF-8"); try { User user = userService.loginFindByid(username); if (user!=null) { response.getWriter().write("可以登录"); }else{ response.getWriter().write("不可以登录"); } } catch (Exception e) { e.printStackTrace(); } } @RequestMapping("/registFindByid") public void registFindByid(HttpServletRequest request, HttpServletResponse response, @RequestParam String username) { response.setContentType("text/html;charset=UTF-8"); try { User user = userService.loginFindByid(username); if (user!=null) { response.getWriter().write("已经被注册"); }else{ response.getWriter().write("可以注册"); } } catch (Exception e) { e.printStackTrace(); } } }