如何在 NodeJS 中的 MySQL 中批量插入 JSON 对象数组

Question

我基本上是在尝试使用 NodeJS 在 MySQL 表中批量插入或更新（在重复键上）对象的 JSON 数组。有时，数组中的 JSON 对象包含不同的键值对。

一种可能的解决方案是首先遍历 JSON 数组，然后在每个对象中搜索从另一个数组（对应于表中的列）硬编码的每个键，然后将结果值推送到新的数组数组中。如果 JSON 对象中不存在键，则填充“NULL”值。

非常感谢您提前提供的任何建议！

var keys = ['customerId','subscriptionId','billingMethod','skuId','creationTime','planName','isCommitmentPlan','startTime','endTime','numberOfSeats','licensedNumberOfSeats','maximumNumberOfSeats','isInTrial','trialEndTime','renewalType','purchaseOrderId','status''customerDomain','skuName','suspensionReasons','dealCode'];

var demo_api = [{
  "kind": "reseller#subscription",
  "customerId": "C0123456",
  "subscriptionId": "123",
  "billingMethod": "ONLINE",
  "skuId": "Google-Apps-Unlimited",
  "creationTime": "1331647980142",
  "plan": {
    "planName": "ANNUAL",
    "isCommitmentPlan": true,
    "commitmentInterval": {
      "startTime": "1331647980142",
      "endTime": "1363183980142"
    }
  },
  "seats": {
    "kind": "subscriptions#seats",
    "numberOfSeats": 10,
    "licensedNumberOfSeats": 10,
    "maximumNumberOfSeats": 500
  },
  "trialSettings": {
    "isInTrial": false
  },
  "renewalSettings": {
    "kind": "subscriptions#renewalSettings",
    "renewalType": "SWITCH_TO_PAY_AS_YOU_GO"
  },
  "purchaseOrderId": "my_example.com_annual_1",
  "status": "ACTIVE",
  "customerDomain": "my_example.com",
  "skuName": "G Suite Business"
},
{
  "kind": "reseller#subscription",
  "customerId": "D0123456",
  "subscriptionId": "456",
  "billingMethod": "ONLINE",
  "skuId": "Google-Apps-For-Business",
  "creationTime": "1331647980142",
  "plan": {
    "planName": "FLEXIBLE",
    "isCommitmentPlan": false
  },
  "seats": {
    "kind": "subscriptions#seats",
    "licensedNumberOfSeats": 0,
    "maximumNumberOfSeats": 10
  },
  "trialSettings": {
    "isInTrial": false
  },
  "purchaseOrderId": "my_example_flex_1",
  "status": "ACTIVE",
  "customerDomain": "my_example2.com",
  "skuName": "G Suite Business"
}];

想要的结果：

var result = [
    ["C0123456", "123", "ONLINE", "Google-Apps-Unlimited", "1331647980142", "ANNUAL", true, "1331647980142", "1363183980142", 10, 10, 500, false, "NULL", "SWITCH_TO_PAY_AS_YOU_GO", "my_example.com_annual_1", "ACTIVE", "my_example.com", "G Suite Basic", "NULL", "NULL"],
    ["D0123456", "456", "ONLINE", "Google-Apps-For-Business", "1331647980142", "FLEXIBLE", false, "NULL", "NULL", "NULL", 0, 0, false, "NULL", "NULL", "my_example_flex_1", "ACTIVE", "my_example2.com", "G Suite Business", "NULL", "NULL"]
];

Answer 1

你可以试试这样的：

  var myArray = new Array();

data.forEach((player) => {
  console.log(player.id);
  console.log(player);
  var playerModel ={
    id : player.id,
    firstname : player.firstname,
    lastname : player.lastname,
    position : player.position,
    price : player.price,
    appearences : player.appearences,
    goals : player.goals,
    assists : player.assists,
    cleansheets : player.cleansheets,
    redcards : player.redcards,
    yellowcards : player.yellowcards,
    image : player.image,
    clubid : player.clubid,
  };
  console.log("model"+playerModel.position);
  myArray.push(playerModel);
});

这里你需要用你创建的模型来改变我代码中的模型播放器，并像这样替换，只需按照你的 json 端点：

 var Mymodel = {
    bind: player.bind,
    ............
    ....
    }

最后一步是 myArray 是你的结果数组，你需要循环它才能看到结果

  for(let item of myArray) {
    console.log(item);
 console.log(item.bind);
.......................
}