支付宝支付接口开发———在线扫码支付

时间 2019-11-30

标签支付宝支付接口开发在线繁體版

原文原文链接

1、所需jar包

服务端sdk下载地址：https://doc.open.alipay.com/docs/doc.htm?spm=a219a.7629140.0.0.470nRM&treeId=193&articleId=103419&docType=1java

详细文档参考：蚂蚁金服开放平台文档中心，具体的api及测试demo均可以查到　地址：　https://doc.open.alipay.com/express

SDK包说明

alipay-sdk-java*.jar—————————支付宝SDK编译文件jar
alipay-sdk-java*-source.jar——————支付宝SDK源码文件jar
commons-logging-1.1.1.jar——————SDK依赖的日志jar
commons-logging-1.1.1-sources.jar———SDK依赖的日志源码jar

注意

集成支付宝接口须要引入的文件是：
alipay-sdk-java*.jar
commons-logging-1.1.1.jar
若进一步了解代码实现请引入文件：
alipay-sdk-java*-source.jar
commons-logging-1.1.1-sources.jar

2、调用支付

    //调用支付
public void toPay() {

        String orderid = getRequest().getParameter("id");
        
        if (StringUtils.isBlank(orderid)) {
            throw new NullPointerException();
        }

        Order order = orderService.selectById(orderid);
        if (order == null) {
            throw new NullPointerException("根据订单号查询不到订单信息！");
        }

        Ordership ordership = ordershipService.selectOne(new Ordership(orderid));
        if (ordership == null) {
            throw new NullPointerException("根据订单号查询不到配送信息！");
        }

        ArrayNode goods_detail = JsonUtils.createArrayNode();// 商品详情设置(json格式-非必须参数，根据业务逻辑处理)
        String out_trade_no = order.getPayNo();//支付编号（订单编号-必须惟一）
        double total_amount = 0.01;//订单金额
        
        String subject = "订单标题";//订单描述
        
        AlipayTradePrecreateResponse resp = aliPayService.aliPay(out_trade_no, total_amount, subject, goods_detail);// 订单编号--订单金额--订单描述--商品明细（无 ）

        if ("10000".equals(resp.getCode())) {//若请求成功，则进行逻辑处理
            String qr_code = resp.getQrCode();
            /**
             * 生成二维码
             */
            // 支付宝返回Code(url)--用户account--订单--id（拼二维码地址而已）
            AttachmentEntity attachmentEntity = this.creatPayCode(qr_code, account, out_trade_no);
            if (attachmentEntity == null) {
                throw new NullPointerException("订单生成失败！OrdersAction--toPay");
            } else {
                // 返回二维码地址
                getOut().println(attachmentEntity.getAtt_path());
            }
        } else {
            throw new NullPointerException("二维码生成失败！OrdersAction--toPay");
        }
    }

   public AlipayTradePrecreateResponse aliPay(String out_trade_no, double total_amount,
                                               String subject, ArrayNode goods_detail) {
        /**
         * 建立Json对象 封装信息
         */
        ObjectNode biz_content = JsonUtils.createObjectNode();
        biz_content.put("out_trade_no", out_trade_no); //订单号
        biz_content.put("total_amount", total_amount); //订单总金额
        biz_content.put("subject", subject); //订单标题
        biz_content.put("timeout_express", "5m"); //该笔订单容许的最晚付款时间，逾期将关闭交易
     
        AlipayTradePrecreateResponse response = null;
    //请求支付接口对象  
    //参数
    //1.请求网址 2.本身所注册的应用id(支付宝分配给开发者的应用ID) 3.私钥 4.json 5.字符编码集 6.公钥
    //实例化客户端
     AlipayClient alipayClient = new DefaultAlipayClient(request_url, app_id, private_key, "json", charset,
                                                            public_key);
     //实例化具体API对应的request类,类名称和接口名称对应
        AlipayTradePrecreateRequest request = new AlipayTradePrecreateRequest();
        request.setBizContent(biz_content.toString());
      
       try {
            response = alipayClient.execute(request);
        } catch (AlipayApiException ex) {
            log.error(ex.getMessage());
        } 
        return response;
    }

//生成二维码
private AttachmentEntity creatPayCode(String url, String user_id, String order_id) {

        String serverClassPath = Thread.currentThread().getContextClassLoader().getResource("").getPath();
        String logo_path = serverClassPath + "config/logo.png";
        String uploadPath = "payForUser/" + user_id + "/order/" + order_id + "/" + "payCode";
        String attName = "payCode.jpg";// 定义原图的名称
        BufferedImage barCode = BarCodeService.createImage(url, logo_path);
        ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
        try {
            ImageOutputStream imageOutputStream = ImageIO.createImageOutputStream(byteArrayOutputStream);
            ImageIO.write(barCode, "jpg", imageOutputStream);
        } catch (IOException iOException) {
            iOException.printStackTrace();
        }
        InputStream inputStream = new ByteArrayInputStream(byteArrayOutputStream.toByteArray());
        String barCode_url = ossService.uploadFile(uploadPath, inputStream, attName);//将二维码文件上传阿里云（可自主处理）
        AttachmentEntity attachmentEntity = new AttachmentEntity();
        attachmentEntity.setAtt_name(attName);
        attachmentEntity.setAtt_path(barCode_url);
        attachmentEntity.setMoudel_name("payCode");
        attachmentEntity.setAtt_type("jpg");
        attachmentEntity.setUpload_time(DateUtils.getSystemDate());
        attachmentEntity.setDownload_count(0);
        attachmentEntity.setGid(DataUtils.getUUID());
        attachmentEntity.setIs_compress(0);
        attachmentEntity.setEntity_id(order_id);

        return attachmentEntity;

    }

3、查询支付状态

    public String isPay() {
    
            AlipayTradeQueryResponse alipayTradeQueryResponse = aliPayService.aliQuery(order.getPayNo());//订单编号
            if (alipayTradeQueryResponse.isSuccess()) {//若查询状态为success
        
                if ("10000".equals(alipayTradeQueryResponse.getCode())) {
                    String Body = alipayTradeQueryResponse.getBody();
                    String out_trade_no = alipayTradeQueryResponse.getOutTradeNo();// 支付编号

                    ObjectNode objectNode = (ObjectNode) JsonUtils.stringToJsonObject(Body)
                            .get("alipay_trade_query_response");
                    String trade_status = objectNode.get("trade_status").textValue();// 支付状态
                    if (trade_status != null && "TRADE_SUCCESS".equals(trade_status)) {
                        String trade_no = objectNode.get("trade_no").textValue();//支付宝交易号
                        
                        //支付记录建立
                        orderService.createPayInfo(order,trade_no,orderpay.orderpay_paystatus_y,orderpay.orderpay_paymethod_alipayescow,"");//订单--支付宝交易号-支付状态-支付类型
                        orderService.orderStutasChange(orderId);// 修改订单状态
                        getOut().print("000000");
                        return null;
                    }else if (trade_status != null && "TRADE_CLOSED".equals(trade_status)) {//二维码失效
                        String trade_no = objectNode.get("trade_no").textValue();//支付宝交易号
                        //修改订单支付编号。从新生成二维码
                        String orderId=out_trade_no.substring(0, out_trade_no.length()-13);
                        e.setId(orderId);
                        String payNo=orderId+new Date().getTime();
                        e.setPayNo(payNo);
                        orderService.update(e);                
                    getOut().print("000001");
                            return null;
                    }

                }
            }
            return null;
    }