@ApiOperation(value = "統(tǒng)一下單接口")
@RequestMapping(value = "/unifiedOrder",method = RequestMethod.POST)
public AjaxResult unifiedOrder(HttpServletRequest req,@RequestBody){
    //校驗小程序（微信）用戶登錄
    //查詢數(shù)據(jù)庫訂單信息（狀態(tài)）
    //只有未支付訂單才能發(fā)起支付
    //0元購買不調(diào)支付
    /**
     * 設(shè)置商戶、小程序相關(guān)請求參數(shù)
     * */
    //獲取小程序的appId
    String appId = WxMaUtil.getAppId(request);
    WxPayUnifiedOrderRequest wxPayUnifiedOrderRequest = new WxPayUnifiedOrderRequest();
    wxPayUnifiedOrderRequest.setAppid(appId);
    //商品名稱
    String body = sysOrdersCourse.getCourseName();
    body =body.length() > 40 ? body.substring(0,39) : body;
    wxPayUnifiedOrderRequest.setBody(body);
    //訂單編號
    wxPayUnifiedOrderRequest.setOutTradeNo(sysOrders.getOrderNo());
    //訂單金額
    wxPayUnifiedOrderRequest.setTotalFee(sysOrders.getOrderAmount().multiply(new             BigDecimal(100)).intValue());
    //交易類型
    wxPayUnifiedOrderRequest.setTradeType("JSAPI");
    //支付回調(diào)地址
         wxPayUnifiedOrderRequest.setNotifyUrl(env.getProperty("notify-host")+"/wx/api/order/notify-order");
    wxPayUnifiedOrderRequest.setSpbillCreateIp("127.0.0.1");
    //用戶在當前小程序中的唯一標識
    wxPayUnifiedOrderRequest.setOpenid(wxUser.getOpenId());
    //調(diào)用微信服務(wù)類
    WxPayService wxPayService = WxPayConfiguration.getPayService();
    return AjaxResult.success(JSONUtils.parse(wxPayService.createOrder(wxPayUnifiedOrderRequest)));
}

@ApiOperation(value = "創(chuàng)建訂單")
    @RequestMapping(value = "/create",method = RequestMethod.POST)
    public AjaxResult create(@RequestBody WxOrderRequest wxOrderRequest){
        //微信用戶信息
        //判斷是否購買過相同商品，若已經(jīng)購買過，則無法創(chuàng)建新的訂單
        //滿足條件后將數(shù)據(jù)插入數(shù)據(jù)庫
         WxOrderResponse wxOrderResponse = orderService.add(wxOrderRequest);
        //如果新增失敗，則返回提示
         if (wxOrderResponse == null){
             return AjaxResult.error("訂單創(chuàng)建失敗");
         }
         return AjaxResult.success(wxOrderResponse);
     }

@ApiOperation(value = "取消訂單")
@RequestMapping(value = "/cancel/{orderId}",method = RequestMethod.PUT)
    public AjaxResult cancel(@PathVariable Long orderId){
        //判斷訂單是否存在
        SysOrders sysOrders = sysOrdersService.getById(orderId);
        if(sysOrders==null){
            return AjaxResult.error("訂單不存在");
        }
        //只有未支付的訂單能取消
        if(!CommonConstants.NO.equals(sysOrders.getIsPay())){
            return AjaxResult.error(MyReturnCode.ERR_70001.getCode(), MyReturnCode.ERR_70001.getMsg());
        }
        sysOrdersService.orderCancel(sysOrders);
        return AjaxResult.success();
    }

@ApiOperation(value = "訂單詳情")
@RequestMapping(value = "/myOrderDetail/{orderId}",method = RequestMethod.GET)
@ApiImplicitParams({@ApiImplicitParam(name = "orderId", value = "訂單Id")})
     public AjaxResult myOrderDetail(@PathVariable Long orderId){
     //從數(shù)據(jù)庫獲取詳情參數(shù)
     SysOrderDetailResponse detailResponse = sysOrdersService.getDetail(orderId);
     return AjaxResult.success(detailResponse);
     }

 /**
     * 訂單詳情頁面參數(shù)處理
     * @param orderId
     * @return sysOrderDetailResponse
     */
    @Override
    public SysOrderDetailResponse getDetail(Long orderId) {
        SysOrderDetailResponse sysOrderDetailResponse =  orderMapper.getDetail(orderId);
        //對頁面的手機號做處理
        String phoneNum = sysOrderDetailResponse.getMobile();
        sysOrderDetailResponse.setMobile(phoneNum.substring(0,3) + "****" +       phoneNum.substring(7,phoneNum.length()));
        //根據(jù)訂單狀態(tài)不同，顯示不同的數(shù)據(jù)
        //計算剩余待支付時間并展示
        return sysOrderDetailResponse;
    }

@ApiOperation("支付回調(diào)")
@RequestMapping(value = "notify-order", method = RequestMethod.POST)
    public String notifyOrder(@RequestBody String xmlData) throws WxPayException {
        log.info("支付回調(diào)：" + xmlData);
        //微信支付服務(wù)
        WxPayService wxPayService = WxPayConfiguration.getPayService();
        WxPayOrderNotifyResult notifyResult = wxPayService.parseOrderNotifyResult(xmlData);
        log.info("支付回調(diào)解析結(jié)果" + notifyResult);
        //對創(chuàng)建的訂單進行支付
        SysOrders sysOrders = orderService.getOne(notifyResult.getOutTradeNo());
        if (sysOrders != null) {
            if (sysOrders.getOrderAmount().multiply(new BigDecimal(100)).intValue() == notifyResult.getTotalFee()){
                 String timeEnd = notifyResult.getTimeEnd();
                 LocalDateTime paymentTime = LocalDateTimeUtils.parse(timeEnd);
                 //支付時間
                 sysOrders.setPaymentTime(paymentTime);
                 sysOrders.setOrderAmount(sysOrders.getOrderAmount());
                 //微信訂單編號
                 sysOrders.setTransactionId(notifyResult.getTransactionId());
                 //更新數(shù)據(jù)庫
                 orderService.notifyOrder(sysOrders);
                 log.info("支付回調(diào)成功通知：" + sysOrders.getOrderNo());
                 return WxPayNotifyResponse.success("支付成功");
            } else {
                 return WxPayNotifyResponse.fail("付款金額與訂單金額不符");
            }
        } else {
            return WxPayNotifyResponse.fail("無此訂單");
        }
    }

@Override
    @Transactional(rollbackFor = Exception.class)
    public void notifyOrder(SysOrders sysOrders) {
       //只有未支付訂單能操作，即is_pay字段為0的訂單
       if(CommonConstants.NO.equals(sysOrders.getIsPay())) {
       //更新訂單支付狀態(tài)
       sysOrders.setIsPay(CommonConstants.YES);
       sysOrders.setStatus(OrderInfoEnum.STATUS_1.getValue());
       sysOrdersMapper.updateById(sysOrders);
       //更新商品表狀態(tài)
       //更新訂單生命周期表
       }
    }