初始版本，目前线上可用

backEnd/src/router/checkout/checkout.ts

@@ -0,0 +1,50 @@
+import * as express from "express";
+import { getConnection } from "typeorm";
+import DeceasedRetail from "@/entity/DeceasedRetail";
+import PaymentRecord from "@/entity/Payment";
+
+const router = express.Router();
+
+router.post("/deceasedCheckout", async (req, res) => {
+  let id = Number(req.body.id);
+  if (!id) {
+    return res.status(500).send({ code: 500, msg: "未传入结账id" });
+  }
+
+  try {
+    let connection = getConnection();
+
+    let deceasedRetailRep = connection.getRepository(DeceasedRetail);
+    let paymentRecordRep = connection.getRepository(PaymentRecord);
+
+    let deceasedRetail = await deceasedRetailRep.findOne(id);
+
+    if (!deceasedRetail)
+      return res.status(500).send({ code: 500, msg: "该记录不存在" });
+
+    let newPaymentRecord = await paymentRecordRep.findOne({
+      deceasedRetailId: deceasedRetail.id,
+    });
+
+    if (!newPaymentRecord) {
+      newPaymentRecord = new PaymentRecord();
+    }
+
+    deceasedRetail.retailState = 1;
+    deceasedRetail.checkoutDate = new Date();
+
+    newPaymentRecord = Object.assign(newPaymentRecord, req.body.currentPayment);
+    newPaymentRecord.deceasedRetailId = deceasedRetail.id;
+
+    await deceasedRetailRep.save(deceasedRetail);
+    await paymentRecordRep.save(newPaymentRecord);
+
+    res
+      .status(200)
+      .send({ code: 200, data: deceasedRetail, msg: "结账成功！" });
+  } catch (err) {
+    res.status(500).send({ code: 500, msg: err.message });
+  }
+});
+
+export default router;