创建支付订单

封装创建支付订单的WEB方法

编写ZfbController.java中的方法

@Login
    @PostMapping("/appPayOrder")
    @ApiOperation("App程序付款")
    public R appPayOrder(@RequestBody PayOrderForm form, @RequestHeader HashMap header) {
        ValidatorUtils.validateEntity(form);
        String token = header.get("token").toString();
        Long userId = Long.parseLong(jwtUtils.getClaimByToken(token).getSubject());
        int orderId = form.getOrderId();
        UserEntity user = new UserEntity();
        user.setUserId(userId);
        QueryWrapper wrapper = new QueryWrapper(user);
        long count = userService.count(wrapper);
        if (count == 0) {
            return R.error("用户不存在");
        }
        String openId = userService.getOne(wrapper).getOpenId();

        OrderEntity order = new OrderEntity();
        order.setUserId(userId.intValue());
        order.setId(orderId);
        order.setStatus(1);
        wrapper = new QueryWrapper(order);
        count = orderService.count(wrapper);
        if (count == 0) {
            return R.error("不是有效的订单");
        }
        //验证购物券是否有效
        //验证团购活动是否有效

        order = new OrderEntity();
        order.setId(orderId);
        wrapper = new QueryWrapper(order);
        order = orderService.getOne(wrapper);
        //向微信平台发出请求，创建支付订单
        String amount = order.getAmount() + "";

        try {
            AlipayClient client = new DefaultAlipayClient(
                    gateway,
                    app_appId,
                    app_privateKey,
                    "json",
                    "UTF-8",
                    app_publicKey,
                    "RSA2"
            );
            AlipayTradeAppPayRequest request = new AlipayTradeAppPayRequest();
            AlipayTradeAppPayModel model = new AlipayTradeAppPayModel();
            model.setBody("我是测试数据");
            model.setSubject("App支付测试Java");
            model.setOutTradeNo(order.getCode());
            model.setTimeoutExpress("30m");
            model.setTotalAmount(amount);
            model.setProductCode("QUICK_MSECURITY_PAY");
            request.setNotifyUrl("http://www.demo.com");
            request.setBizModel(model);

            AlipayTradeAppPayResponse response = client.sdkExecute(request);
            if (response.isSuccess()) {
//                String prepayId=response.getTradeNo();
//                order.setPrepayId(prepayId);
                order.setPaymentType(2);
                UpdateWrapper updateWrapper = new UpdateWrapper();
                updateWrapper.eq("id", order.getId());
                orderService.update(order, updateWrapper);
                return R.ok().put("orderString", response.getBody());
            } else {
                return R.error("支付订单创建失败");
            }

        } catch (Exception e) {
            e.printStackTrace();
            return R.error("支付宝支付模块故障");
        }

    }

前端发起支付请求

编写order.js文件

$(".pay-btn").click(function(){
    //支付宝
   let orderId=$(this).parents(".order").data("order-id")
    $.ajax({
        url:url.zfb.appPayOrder,
        type:"post",
        dataType:"json",
        contentType:"application/json",
        beforeSend:function(request){
            request.setRequestHeader("token",localStorage.getItem("token"))
        },
        data:JSON.stringify({
            "orderId":orderId
        }),
        success:function(resp){
            let orderString=resp.orderString
            window.order.pay(orderString,localStorage.getItem("token"),orderId)
    }
})