尚筹网17订单、支付

订单部分建模回顾

实体类之间关系

创建OrderVO实体类

public class OrderVO implements Serializable {
    private static final long serialVersionUID = 1L;

    // 主键
    private Integer id;
    // 订单号
    private String orderNum;
    // 支付宝流水单号
    private String payOrderNum;
    // 订单金额
    private Double orderAmount;
    // 是否开发票
    private Integer invoice;
    // 发票抬头
    private String invoiceTitle;
    // 备注
    private String orderRemark;

    private String addressId;

    private OrderProjectVO orderProjectVO;

    public OrderVO() {
    }

    public OrderVO(Integer id, String orderNum, String payOrderNum, Double orderAmount, Integer invoice, String invoiceTitle, String orderRemark, String addressId, OrderProjectVO orderProjectVO) {
        this.id = id;
        this.orderNum = orderNum;
        this.payOrderNum = payOrderNum;
        this.orderAmount = orderAmount;
        this.invoice = invoice;
        this.invoiceTitle = invoiceTitle;
        this.orderRemark = orderRemark;
        this.addressId = addressId;
        this.orderProjectVO = orderProjectVO;
    }

修改t_order表

增加address_id字段

支付功能流程

思路

操作1:搭建环境

基础环境

参照order-consumer

支付接口调用所需环境 

<!-- https://mvnrepository.com/artifact/com.alipay.sdk/alipay-sdk-java --> <dependency> 
<groupId>com.alipay.sdk</groupId> 
<artifactId>alipay-sdk-java</artifactId>
 <version>3.3.49.ALL</version> 
</dependency> 

创建PayProperties类维护支付接口参数

@Component
@ConfigurationProperties(prefix = "ali.pay")
public class PayProperties {
    private String appId;
    private String merchantPrivateKey;
    private String alipayPublicKey;
    private String notifyUrl;
    private String returnUrl;
    private String signType;
    private String charset;
    private String gatewayUrl;

    public PayProperties() {
    }

    public PayProperties(String appId, String merchantPrivateKey, String alipayPublicKey, String notifyUrl, String returnUrl, String signType, String charset, String gatewayUrl) {
        this.appId = appId;
        this.merchantPrivateKey = merchantPrivateKey;
        this.alipayPublicKey = alipayPublicKey;
        this.notifyUrl = notifyUrl;
        this.returnUrl = returnUrl;
        this.signType = signType;
        this.charset = charset;
        this.gatewayUrl = gatewayUrl;
    }

配置支付参数

操作2:提交订单表单

构造页面不可见的表单

<!-- 为了收集当前页面中的所有数据，构造空表单 -->
<form id="summaryForm" action="pay/generate/order" method="post"></f

给“立即付款”按钮绑定单击响应函数

$("#payButton").click(function(){
   
   // 1.收集所有要提交的表单项的数据
   var addressId = $("[name=addressId]:checked").val();
   var invoice = $("[name=invoiceRadio]:checked").val();
   var invoiceTitle = $.trim($("[name=invoiceTitle]").val());
   var remark = $.trim($("[name=remark]").val());
   
   // 2.将上面收集到的表单数据填充到空表单中并提交
   $("#summaryForm")
      .append("<input type='hidden' name='addressId' value='"+addressId+"'/>")
      .append("<input type='hidden' name='invoice' value='"+invoice+"'/>")
      .append("<input type='hidden' name='invoiceTitle' value='"+invoiceTitle+"'/>")
      .append("<input type='hidden' name='orderRemark' value='"+remark+"'/>")
      .submit();
   
});

操作3:生成订单号

支付宝对订单号的要求

格式设计

当前时间(年月日小时分秒)+用户ID

时间格式:yyyyMMddHHmmss

用户ID:通过UUID生成

Controller

//让当前方法返回响应体，在浏览器页面上显示支付宝支付页面
@ResponseBody
@RequestMapping("/generate/order")
public String generateOrder(HttpSession session, OrderVO orderVO) throws AlipayApiException {
    // 1.从session中获取orderProjectVO
    OrderProjectVO orderProjectVO= (OrderProjectVO) session.getAttribute("orderProjectVO");
    // 2.将orderProjectVO对象和orderVO对象封装到一起
    orderVO.setOrderProjectVO(orderProjectVO);
    // 3.生成订单并设置到orderVO对象中
    String time = new SimpleDateFormat("yyyyMMddHHmmss").format(new Date());

    String user = UUID.randomUUID().toString().replace("-","").toUpperCase();

    String orderNum = time + user;

    orderVO.setOrderNum(orderNum);
    // 4.计算订单金额并设置到orderVO对象中
    Double orderAmount = (double) orderProjectVO.getSupportPrice() * orderProjectVO.getReturnCount() + orderProjectVO.getFreight();
    orderVO.setOrderAmount(orderAmount);

    // 将OrderVO对象存入Session域中
    session.setAttribute("orderVO",orderVO);
    // 5.调用支付宝封装方法
    return sendRequestToAliPay(orderNum,orderAmount,orderProjectVO.getProjectName(),orderProjectVO.getReturnContent());

}

调用支付宝接口的专门方法

/**
     * 为了调用支付宝接口封装的方法
     * @param outTradeNo  外部订单号
     * @param totalAmount 订单金额
     * @param subject      订单标题
     * @param body          描述
     * @return              返回页面上显示的登录界面
     * @throws AlipayApiException
     */
    private String sendRequestToAliPay(
            String outTradeNo,
            Double totalAmount,
            String subject,
            String body) throws AlipayApiException {
        //获得初始化的AlipayClient
        AlipayClient alipayClient = new DefaultAlipayClient(
                payProperties.getGatewayUrl(),
                payProperties.getAppId(),
                payProperties.getMerchantPrivateKey(),
                "json",
                payProperties.getCharset(),
                payProperties.getAlipayPublicKey(),
                payProperties.getSignType());

        //设置请求参数
        AlipayTradePagePayRequest alipayRequest = new AlipayTradePagePayRequest();
        alipayRequest.setReturnUrl(payProperties.getReturnUrl());
        alipayRequest.setNotifyUrl(payProperties.getNotifyUrl());

        //商户订单号，商户网站订单系统中唯一订单号，必填
//        String out_trade_no = new String(request.getParameter("WIDout_trade_no").getBytes("ISO-8859-1"),"UTF-8");
        //付款金额，必填
//        String total_amount = new String(request.getParameter("WIDtotal_amount").getBytes("ISO-8859-1"),"UTF-8");
//        //订单名称，必填
//        String subject = new String(request.getParameter("WIDsubject").getBytes("ISO-8859-1"),"UTF-8");
//        //商品描述，可空
//        String body = new String(request.getParameter("WIDbody").getBytes("ISO-8859-1"),"UTF-8");

        alipayRequest.setBizContent("{"out_trade_no":""+ outTradeNo +"","
                + ""total_amount":""+ totalAmount +"","
                + ""subject":""+ subject +"","
                + ""body":""+ body +"","
                + ""product_code":"FAST_INSTANT_TRADE_PAY"}");

        //若想给BizContent增加其他可选请求参数，以增加自定义超时时间参数timeout_express来举例说明
        //alipayRequest.setBizContent("{"out_trade_no":""+ out_trade_no +"","
        //    + ""total_amount":""+ total_amount +"","
        //    + ""subject":""+ subject +"","
        //    + ""body":""+ body +"","
        //    + ""timeout_express":"10m","
        //    + ""product_code":"FAST_INSTANT_TRADE_PAY"}");
        //请求参数可查阅【电脑网站支付的API文档-alipay.trade.page.pay-请求参数】章节

        //请求
        return alipayClient.pageExecute(alipayRequest).getBody();
    }

操作4:returnUrl方法

@ResponseBody
@RequestMapping("/return")
public String returnUrlMethod(
        HttpServletRequest request,
        HttpSession session) throws AlipayApiException, UnsupportedEncodingException {
    //获取支付宝GET过来反馈信息
    Map<String,String> params = new HashMap<String,String>();
    Map<String,String[]> requestParams = request.getParameterMap();
    for (Iterator<String> iter = requestParams.keySet().iterator(); iter.hasNext();) {
        String name = (String) iter.next();
        String[] values = (String[]) requestParams.get(name);
        String valueStr = "";
        for (int i = 0; i < values.length; i++) {
            valueStr = (i == values.length - 1) ? valueStr + values[i]
                    : valueStr + values[i] + ",";
        }
        //乱码解决，这段代码在出现乱码时使用
        valueStr = new String(valueStr.getBytes("ISO-8859-1"), "utf-8");
        params.put(name, valueStr);
    }

    boolean signVerified = AlipaySignature.rsaCheckV1(
            params,
            payProperties.getAlipayPublicKey(),
            payProperties.getCharset(),
            payProperties.getSignType()); //调用SDK验证签名

    //——请在这里编写您的程序（以下代码仅作参考）——
    if(signVerified) {
        //商户订单号
        String orderNum = new String(request.getParameter("out_trade_no").getBytes("ISO-8859-1"),"UTF-8");

        //支付宝交易号
        String payOrderNum = new String(request.getParameter("trade_no").getBytes("ISO-8859-1"),"UTF-8");

        //付款金额
        String orderAmount = new String(request.getParameter("total_amount").getBytes("ISO-8859-1"),"UTF-8");
        // 保存到数据库
        // 从Session获取OrderVO对象
        OrderVO orderVO = (OrderVO) session.getAttribute("orderVO");

        orderVO.setPayOrderNum(payOrderNum);
        // 发送给mysql远程接口
        ResultEntity<String> resultEntity = mySQLRemoteService.saveOrderRemote(orderVO);
        logger.info("Order save result="+resultEntity.getResult());
        return "trade_no:"+payOrderNum+"<br/>out_trade_no:"+orderNum+"<br/>total_amount:"+orderAmount;
    }else {
        // 页面显示信息，验签失败
        return "验签失败";
    }
}

操作5:notifyUrl方法

 @RequestMapping("/notify")
    public void notifyUrlMethod(HttpServletRequest request) throws UnsupportedEncodingException, AlipayApiException {

        //获取支付宝POST过来反馈信息
        Map<String,String> params = new HashMap<String,String>();
        Map<String,String[]> requestParams = request.getParameterMap();
        for (Iterator<String> iter = requestParams.keySet().iterator(); iter.hasNext();) {
            String name = (String) iter.next();
            String[] values = (String[]) requestParams.get(name);
            String valueStr = "";
            for (int i = 0; i < values.length; i++) {
                valueStr = (i == values.length - 1) ? valueStr + values[i]
                        : valueStr + values[i] + ",";
            }
            //乱码解决，这段代码在出现乱码时使用
            valueStr = new String(valueStr.getBytes("ISO-8859-1"), "utf-8");
            params.put(name, valueStr);
        }

        boolean signVerified = AlipaySignature.rsaCheckV1(
                params,
                payProperties.getAlipayPublicKey(),
                payProperties.getCharset(),
                payProperties.getSignType()); //调用SDK验证签名
        //——请在这里编写您的程序（以下代码仅作参考）——
   /* 实际验证过程建议商户务必添加以下校验：
   1、需要验证该通知数据中的out_trade_no是否为商户系统中创建的订单号，
   2、判断total_amount是否确实为该订单的实际金额（即商户订单创建时的金额），
   3、校验通知中的seller_id（或者seller_email) 是否为out_trade_no这笔单据的对应的操作方（有的时候，一个商户可能有多个seller_id/seller_email）
   4、验证app_id是否为该商户本身。
   */
        if(signVerified) {//验证成功
            //商户订单号
            String out_trade_no = new String(request.getParameter("out_trade_no").getBytes("ISO-8859-1"),"UTF-8");

            //支付宝交易号
            String trade_no = new String(request.getParameter("trade_no").getBytes("ISO-8859-1"),"UTF-8");

            //交易状态
            String trade_status = new String(request.getParameter("trade_status").getBytes("ISO-8859-1"),"UTF-8");
            logger.info("trade_status="+trade_status);
            logger.info("out_trade_no="+out_trade_no);
            logger.info("trade_no="+trade_no);
//            if(trade_status.equals("TRADE_FINISHED")){
//                //判断该笔订单是否在商户网站中已经做过处理
//                //如果没有做过处理，根据订单号（out_trade_no）在商户网站的订单系统中查到该笔订单的详细，并执行商户的业务程序
//                //如果有做过处理，不执行商户的业务程序
//
//                //注意：
//                //退款日期超过可退款期限后（如三个月可退款），支付宝系统发送该交易状态通知
//            }else if (trade_status.equals("TRADE_SUCCESS")){
//                //判断该笔订单是否在商户网站中已经做过处理
//                //如果没有做过处理，根据订单号（out_trade_no）在商户网站的订单系统中查到该笔订单的详细，并执行商户的业务程序
//                //如果有做过处理，不执行商户的业务程序
//
//                //注意：
//                //付款完成后，支付宝系统发送该交易状态通知
//            }
//
//            out.println("success");
//
//        }else {//验证失败
//            out.println("fail");
//
//            //调试用，写文本函数记录程序运行情况是否正常
//            //String sWord = AlipaySignature.getSignCheckContentV1(params);
//            //AlipayConfig.logResult(sWord);
        }else {
            logger.info("验证失败");
        }
    }

订单信息保存到数据库

思路

SQL设置

关键点:保存OrderPO时获取自增主键

<insert id="insert" parameterType="com.example.entity.po.OrderPO" useGeneratedKeys="true" keyProperty="id">
  insert into t_order (id, order_num, pay_order_num, 
    order_amount, invoice, invoice_title, 
    order_remark, address_id)
  values (#{id,jdbcType=INTEGER}, #{orderNum,jdbcType=CHAR}, #{payOrderNum,jdbcType=CHAR}, 
    #{orderAmount,jdbcType=DOUBLE}, #{invoice,jdbcType=INTEGER}, #{invoiceTitle,jdbcType=CHAR}, 
    #{orderRemark,jdbcType=CHAR}, #{addressId,jdbcType=CHAR})
</insert>