package cn.ecourses.order.controller;
//订单管理Controller
@Controller
public class OrderController {
	
	@Autowired
	private CartService cartService;
	@Autowired
	private OrderService orderService;

	@RequestMapping("/order/order-cart")
	public String showOrderCart(HttpServletRequest request) {
		//取用户id
		EcoursesUser user= (EcoursesUser) request.getAttribute("user");
		//根据用户id取收货地址列表
		//使用静态数据。。。
		//取支付方式列表
		//静态数据
		//根据用户id取购物车列表
		List<EcoursesItem> cartList = cartService.getCartList(user.getId());
		//把购物车列表传递给jsp
		request.setAttribute("cartList", cartList);
		//返回页面
		return "order-cart";
	}
	
	@RequestMapping(value="/order/create", method=RequestMethod.POST)
	public String createOrder(OrderInfo orderInfo, HttpServletRequest request) {
		//取用户信息
		EcoursesUser user = (EcoursesUser) request.getAttribute("user");
		//把用户信息添加到orderInfo中。
		orderInfo.setUserId(user.getId());
		orderInfo.setBuyerNick(user.getUsername());
		//调用服务生成订单
		ECoursesResult ecoursesResult = orderService.createOrder(orderInfo);
		//如果订单生成成功，需要删除购物车
		if (ecoursesResult.getStatus() == 200) {
			//清空购物车
			cartService.clearCartItem(user.getId());
		}
		//把订单号传递给页面
		request.setAttribute("orderId", ecoursesResult.getData());
		request.setAttribute("payment", orderInfo.getPayment());
		//返回逻辑视图
		return "success";
	}
}

package cn.ecourses.order.interceptor;
//用户登录拦截器
public class LoginInterceptor implements HandlerInterceptor {
	
	@Value("${SSO_URL}")
	private String SSO_URL;
	
	@Autowired
	private TokenService tokenService;
	@Autowired
	private CartService  cartService;
	
	@Override
	public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
		//从cookie中取token
		String token = CookieUtils.getCookieValue(request, "token");
		//判断token是否存在
		if (StringUtils.isBlank(token)) {
			//如果token不存在，未登录状态，跳转到sso系统的登录页面。用户登录成功后，跳转到当前请求的url
			response.sendRedirect(SSO_URL + "/page/login?redirect=" + request.getRequestURL());
			//拦截
			return false;
		}
		//如果token存在，需要调用sso系统的服务，根据token取用户信息
		ECoursesResult ecoursesResult = tokenService.getUserByToken(token);
		//如果取不到，用户登录已经过期，需要登录。
		if (ecoursesResult.getStatus() != 200) {
			//如果token不存在，未登录状态，跳转到sso系统的登录页面。用户登录成功后，跳转到当前请求的url
			response.sendRedirect(SSO_URL + "/page/login?redirect=" + request.getRequestURL());
			//拦截
			return false;
		}
		//如果取到用户信息，是登录状态，需要把用户信息写入request。
		EcoursesUser user = (EcoursesUser) ecoursesResult.getData();
		request.setAttribute("user", user);
		//判断cookie中是否有购物车数据，如果有就合并到服务端。
		String jsonCartList = CookieUtils.getCookieValue(request, "cart", true);
		if (StringUtils.isNoneBlank(jsonCartList)) {
			//合并购物车
			cartService.mergeCart(user.getId(), JsonUtils.jsonToList(jsonCartList, EcoursesItem.class));
		}
		//放行
		return true;
	}

	@Override
	public void afterCompletion(HttpServletRequest arg0, HttpServletResponse arg1, Object arg2, Exception arg3)
			throws Exception {

	}

	@Override
	public void postHandle(HttpServletRequest arg0, HttpServletResponse arg1, Object arg2, ModelAndView arg3)
			throws Exception {

	}
}