封装扫码支付WEB方法

编写ScanCodePayOrderForm.java文件

@Data
@ApiModel(value = "收款码付款的表单")
public class ScanCodePayOrderForm {
@ApiModelProperty(value = "付款码")
@NotBlank
@Pattern(regexp = "^1[0-5][0-9]{16}$|^(25|26|27|28|29|30)[0-9]{14,22}$|^622[0-9]{16}$",message = "不符合正则表达式")
private String authCode;

@ApiModelProperty(value = "订单ID")
@Min(1)
private Integer orderId;
}

@Login
@PostMapping("/scanCodePayOrder")
@ApiOperation("付款码收款")
public R scanCodePayOrder(@RequestBody ScanCodePayOrderForm 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");
}
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"
    );
    AlipayTradePayRequest request = new AlipayTradePayRequest();
    request.setBizContent("{" +
            "    \"out_trade_no\":\"" + order.getCode() + "\"," +
            "    \"scene\":\"bar_code\"," +
            "    \"auth_code\":\"" + form.getAuthCode() + "\"," +
            "    \"subject\":\"扫码付款测试\"," +
            "    \"store_id\":\"NJ_001\"," +
            "    \"timeout_express\":\"2m\"," +
            "    \"total_amount\":\"" + amount + "\"" +
            "  }");
    AlipayTradePayResponse response = client.execute(request);
    if (response.isSuccess() && response.getCode().equals("10000")) {
        String prepayId = response.getTradeNo();
        order.setPrepayId(prepayId);
        order.setStatus(2);
        order.setPaymentType(2);
        UpdateWrapper updateWrapper = new UpdateWrapper();
        updateWrapper.eq("id", order.getId());
        orderService.update(order, updateWrapper);
        return R.ok("付款成功");
    } else {
        return R.error("付款失败");
    }
} catch (Exception e) {
    e.printStackTrace();
    return R.error("支付宝支付模块故障");
}
}