native支付官方文档v2：https://pay.weixin.qq.com/wiki/doc/api/native.php?chapter=6_1

native支付用于常规的网页支付

@RestController
@RequestMapping("/payment")
public class PaymentController {
    private User user = new User(1,"cc","123");

    private Integer orderId = 1;

    @Autowired
    OrderService orderService;
    @Autowired
    CcWxPayConfig wxPayConfig;

 

    @GetMapping("/native")
    public void nativePayment(HttpServletResponse response) throws Exception {
        Order order = orderService.getById(orderId);
        String amount = order.getAmount().multiply(new BigDecimal("100")).intValue()+"";

        WXPay wxPay = new WXPay(wxPayConfig);
        HashMap<String, String> map = new HashMap<>();
        map.put("nonce_str", WXPayUtil.generateNonceStr());
        map.put("body","商品描述");
        map.put("out_trade_no",order.getOrderNo());
        map.put("total_fee",amount);
        map.put("spbill_create_ip","127.0.0.1");
        map.put("notify_url","https://127.0.0.1");
        map.put("trade_type","NATIVE");


        String sign = WXPayUtil.generateSignature(map,wxPayConfig.getMiniKey());
        map.put("sign",sign);

        Map<String, String> result = wxPay.unifiedOrder(map);
        String prepayId = result.get("prepay_id");
        // 支付连接
        String codeUrl = result.get("code_url");

//        ByteArrayOutputStream outputStream = new ByteArrayOutputStream();


        ServletOutputStream outputStream = response.getOutputStream();
        QrCodeUtil.generate(codeUrl,300,300,"jpg",outputStream);

       outputStream.close();



    }




    @GetMapping("/searchOrder")
    public void searchOrderStatus() throws Exception {
        Order order = orderService.getById(this.orderId);
        HashMap<String, String> map = new HashMap<>();
        map.put("appid",wxPayConfig.getMiniAppId());
        map.put("mch_id",wxPayConfig.getMiniMchId());
        map.put("out_trade_no",order.getOrderNo());
        map.put("nonce_str",WXPayUtil.generateNonceStr());
        String sign = WXPayUtil.generateSignature(map,wxPayConfig.getMiniKey());
        map.put("sign",sign);
        WXPay wxPay = new WXPay(wxPayConfig);
        Map<String, String> result = wxPay.orderQuery(map);
        String returnCode = result.get("return_code");
        String resultCode = result.get("result_code");

        System.out.println("resultCode = " + resultCode);
        System.out.println("returnCode = " + returnCode);

        String tradeStatus = result.get("trade_state");

        System.out.println("tradeStatus = " + tradeStatus);

    }


}