接入支付宝网页支付的个人记录

电玩女神 2022-04-23 04:46 242阅读 0赞

实现支付宝支付，开发其实不难，主要是申请和配置一些秘钥麻烦

1.  先申请一个应用，应用对应了不同的功能，需要进行审核才能通过。
2.  ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM1MTUyMDM3_size_16_color_FFFFFF_t_70]  
    为了开放方便，我申请了一个沙箱应用  
    ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM1MTUyMDM3_size_16_color_FFFFFF_t_70 1]  
    其中箭头所示的为这个应用的公钥 需要在代码中配置  
    私钥的生成需要参考官方链接，下载到本地生成： [https://docs.open.alipay.com/291/105971][https_docs.open.alipay.com_291_105971]

下面进行开发的配置：  
引入依赖

<dependency>
    			<groupId>com.alipay.sdk</groupId>
    			<artifactId>alipay-sdk-java</artifactId>
    			<version>3.4.27.ALL</version>
    		</dependency>

配置支付的客户端 属性信息

#支付宝配置
    #支付同步返回地址
    ali_return_url =http://106.13xxxx251:8080/tr/send/r1eg3sister/code111  这是get请求的地址，在支付完成之后有支付宝在浏览器中跳转
    #支付异步通知地址
    ali_notify_url =http://106.13.zzzz1:8080/tr/send/register/code  这是post请求的地址由支付宝异步调用服务器程序，不要设置登录拦截的接口，这也是支付完成的一个确认接口，需要给支付宝返回一个success 字段，否则支付宝会分时间段不断请求接口。具体参考其他博客。 这里可以做一些业务处理
    #产品码
    product_no = FAST_INSTANT_TRADE_PAY
    #超时时间
    time_express = 15m
    #支付网关
    url =https://openapi.alipaydev.com/gateway.do   （沙箱网关）
    #商户号
    appid =201657142222  （这是应用的ID）
    #私钥
    private_key =MIIEvAIBADATQ==（此处的一堆秘钥，是生成在本地的秘钥）
    #公钥
    ali_public_key =MIIBIjANBgkqhkiG9w0QAB （这是一个应用对应的公钥，是上面截图箭头指示的内容）
    #加密方式
    sign_type = RSA2

/**
     * 支付操作业务
     * Created by huangch on 2019/1/20 19:33
     */
    @Transactional
    @Service
    public class AlipayServiceImpl implements AlipayService {
    
        @Value("${ali_return_url}")
        private String ali_return_url;
    
        @Value("${ali_notify_url}")
        private String ali_notify_url;
    
        @Value("${product_no}")
        private String product_no;
    
        @Value("${time_express}")
        private String time_express;
    
        @Value("${url}")
        private String url;
    
        @Value("${appid}")
        private String appid;
    
        @Value("${private_key}")
        private String private_key;
    
        @Value("${ali_public_key}")
        private String ali_public_key;
    
        @Value("${sign_type}")
        private String sign_type;
    
    
        public static final String TRADE_SUCCESS = "TRADE_SUCCESS"; //支付成功标识
        public static final String TRADE_CLOSED = "TRADE_CLOSED";//交易关闭
    
        /**
         * 返回收钱码表单
         * @param map
         * @return
         */
        @Override
        public String alipay(Map<String,Object> map) {
    
            String orderId = (String) map.get("orderId");
            String orderName = (String) map.get("orderName");
            // 判断用户是否登录
            // 判断订单是否可以支付
            // 记录订单状态为 待支付状态
            // 判断
            if(true){
    
            }
            AlipayClient alipayClient = new DefaultAlipayClient(url, appid, private_key, "json", "utf-8", ali_public_key, sign_type); //获得初始化的AlipayClient
            AlipayTradePagePayRequest alipayRequest = new AlipayTradePagePayRequest();//创建API对应的request
            alipayRequest.setReturnUrl(ali_return_url);
            alipayRequest.setNotifyUrl(ali_notify_url);         //在公共参数中设置回跳和通知地址
            alipayRequest.setBizContent("{" +
                    "    \"out_trade_no\":\""+orderId+"\"," +
                    "    \"product_code\":\"FAST_INSTANT_TRADE_PAY\"," +
                    "    \"total_amount\":88.88," +
                    "    \"subject\":\""+orderName+"\"," +
                    "    \"body\":\"Iphone6 16G\"," +
                    "    \"passback_params\":\"merchantBizType%3d3C%26merchantBizNo%3d2016010101111\"," +
                    "    \"extend_params\":{" +
                    "    \"sys_service_provider_id\":\"2088511833117846\"" +
                    "    }"+
                    "  }");//填充业务参数
            String form="";
            try {
                form = alipayClient.pageExecute(alipayRequest).getBody(); //调用SDK生成表单
            } catch (AlipayApiException e) {
                e.printStackTrace();
            }
    
        return form;
        }
    
        @Override
        public String synchronous(HttpServletRequest request) {
    
            Map<String, String> parameters = new HashMap<>();
            Map<String, String[]> requestParams = request.getParameterMap();
            //log.info("支付宝同步参数", requestParams);
            for (Map.Entry<String, String[]> entry : requestParams.entrySet()) {
                String key = entry.getKey();
                String[] values = entry.getValue();
                String valueStr = "";
                for (int i = 0; i < values.length; i++) {
                    valueStr = (i == values.length - 1) ? valueStr + values[i] : valueStr + values[i] + ",";
                }
                parameters.put(key, valueStr);
            }
            //记录日志
            String merchantOrderNo = request.getParameter("out_trade_no");//商户订单号
           // cashLogMapper.add(request.getParameter("out_trade_no"), "SYNCHRONOUS", JSON.toJSONString(parameters), new Date());
            return "<html>\n" +
                    "<head>\n" +
                    "<script type=\"text/javascript\"> function load() { window.close(); } </script>\n" +
                    "</head>\n" +
                    "<body \"" +
                    "load()\"> </body>\n" +
                    "</html>";
        }
    
        @Override
        public void notify(HttpServletRequest request, HttpServletResponse response) {
            //接收参数进行校验
            Map<String, String> parameters = new HashMap<>();
            Map<String, String[]> requestParams = request.getParameterMap();
            for (Map.Entry<String, String[]> entry : requestParams.entrySet()) {
                String key = entry.getKey();
                String[] values = entry.getValue();
                String valueStr = "";
                for (int i = 0; i < values.length; i++) {
                    valueStr = (i == values.length - 1) ? valueStr + values[i] : valueStr + values[i] + ",";
                }
                parameters.put(key, valueStr);
            }
            //log.info("parameters is [parameters={}]", parameters);
            String appId = request.getParameter("app_id");//appid
            String merchantOrderNo = request.getParameter("out_trade_no");//商户订单号
    
            String orderId = "123123"; //cashMapper.getCashByMerchantOrderNo(merchantOrderNo).getOrderId();
            if (orderId == null) {
                //log.error("orderId is null");
                //ReturnData.fail(ReturnCode.SERVER_EXCEPTION);
            }
            //log.info("orderId: {}", orderId);
            String payState = request.getParameter("trade_status");//交易状态
            String encodeOrderNum = null;
            //cashLogMapper.add(request.getParameter("out_trade_no"), "NOTIFY", JSON.toJSONString(parameters), new Date());
            try {
                encodeOrderNum = URLDecoder.decode(request.getParameter("passback_params"), "UTF-8");
                //log.info("encodeOrderNum is [encodeOrderNum={}]", encodeOrderNum);
    
                boolean signVerified;
                signVerified = AlipaySignature.rsaCheckV1(parameters, ali_public_key, "UTF-8", sign_type);//验证签名
                //log.info("signVerified is [signVerified={}]", signVerified);
                if (signVerified) { //通过验证
                    //log.info("payState: {}", payState);
                    if (payState.equals(TRADE_SUCCESS)) {
                        //判断订单号与插入的订单号是否一样
                        if (merchantOrderNo.equals(encodeOrderNum) == false || appid.equals(appId) == false) {
                            //log.info("vali failure");
                            //cashMapper.update(merchantOrderNo, 4);
    
                            response.getOutputStream().print("failure");
                            return;
                        }
                        //cashMapper.update(merchantOrderNo, 3);
                        //orderMapper.afterPay(orderId);
                        response.getOutputStream().print("success");
                        return;
                    } else if (payState.equals(TRADE_CLOSED)) { //交易关闭
                        //cashMapper.update(merchantOrderNo, 7);
                    } else {
                        //cashMapper.update(merchantOrderNo, 4);
                        response.getOutputStream().print("failure");
                        return;
                    }
                } else {
                    //签名校验失败更状态
                    //cashMapper.update(merchantOrderNo, 4);
                    response.getOutputStream().print("failure");
                    return;
                }
                //log.info("encodeOrderNum is [encodeOrderNum={}]", encodeOrderNum);
                //cashMapper.update(merchantOrderNo, 4);
                response.getOutputStream().print("failure");
                return;
            } catch (Exception e) {
                //log.error(e.getErrMsg());
                throw new RuntimeException("调用支付宝接口发生异常");
            }
    
    
        }
    
    }

//1.申请付款
        @ApiOperation("申请付款")
        @AuthCheck("no")
        @RequestMapping(value = "/order/pay", method = RequestMethod.GET)
        public void alipay(String amount, String orderName, String orderId, HttpServletResponse httpResponse) throws Exception {
            Map<String,Object> map = new HashMap<>();
            map.put("orderId",orderId);
            map.put("orderName",orderName);
            map.put("amount",amount);
            String form =  alipayService.alipay(map);
            httpResponse.setContentType("text/html;charset=" + "utf-8");
            httpResponse.getWriter().write(form);//直接将完整的表单html输出到页面
            httpResponse.getWriter().flush();
            httpResponse.getWriter().close();
        }

这里值做了一个支付接口的方法，以form表单的形式发送到前端支付，注意填写相关的订单信息和 业务逻辑，这里就不多说了  
在异步请求的接口中，支付宝只能请求暴露在公网上的接口，本地debug一般无法进入接口。

随笔写的一点东西， 希望能帮到有些朋友，以下是我参考的一篇博客  
[https://blog.csdn.net/chire\_jr/article/details/80051661][https_blog.csdn.net_chire_jr_article_details_80051661]

如果你喜欢那就扫一扫把，点个赞。  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM1MTUyMDM3_size_16_color_FFFFFF_t_70 2]

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM1MTUyMDM3_size_16_color_FFFFFF_t_70]: /images/20220323/39050acd311d4cc39eec81e0b8ba9d41.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM1MTUyMDM3_size_16_color_FFFFFF_t_70 1]: /images/20220323/de93f7c0f2764cb681cabf05ab394a6c.png
[https_docs.open.alipay.com_291_105971]: https://docs.open.alipay.com/291/105971
[https_blog.csdn.net_chire_jr_article_details_80051661]: https://blog.csdn.net/chire_jr/article/details/80051661
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM1MTUyMDM3_size_16_color_FFFFFF_t_70 2]: /images/20220323/c9905229e1f34218b32cebb02ab8dbda.png