Question

我有一个JSON文件

{
  "name": "re2",
  "count": 1806,
  "frequency": "realtime",
  "version": 5,
  "newdata": true,
  "lastrunstatus": "success",
  "lastsuccess": "Fri May 30 2014 06:02:41 GMT+0000 (UTC)",
  "results": {
    "collection1": [
      {
        "Title": {
          "href": "http://www.realestate.com.au/project-spec+property+%e2%80%93+helio+apartments-vic-north+melbourne-600004887",
          "text": "93 Flemington Road, North Melbourne, Vic 3051"
        },
        "image": {
          "href": "http://www.realestate.com.au/project-spec+property+%e2%80%93+helio+apartments-vic-north+melbourne-600004887",
          "alt": "93 Flemington Road, North Melbourne, Vic 3051",
          "src": "http://i2.au.reastatic.net/345x200/3a7e58fe3aefa7fd373c1b9c9879d648257dc0e7c8d35c6b7a19d261bffeff28/main.jpg"
        },
        "price": "$700,000 - $770,000",
        "title2": {
          "href": "http://www.realestate.com.au/project-spec+property+%e2%80%93+helio+apartments-vic-north+melbourne-600004887",
          "text": "93 Flemington Road, North Melbourne, Vic 3051"
        }
      },
      {
        "Title": {
          "href": "http://www.realestate.com.au/project-redmond+park-vic-carlton+north-600002807",
          "text": "300 Pigdon Street, Carlton North, Vic 3054"
        },
        "image": {
          "href": "http://www.realestate.com.au/project-redmond+park-vic-carlton+north-600002807",
          "alt": "300 Pigdon Street, Carlton North, Vic 3054",
          "src": "http://i2.au.reastatic.net/345x200/c22712b2c40db6e8017ebc6f677c9835991e3e1ab9431cfe28d0ab8ea0af43e3/main.jpg"
        },
        "price": "$830,000 - $880,000",
        "title2": {
          "href": "http://www.realestate.com.au/project-redmond+park-vic-carlton+north-600002807",
          "text": "300 Pigdon Street, Carlton North, Vic 3054"
        }
      },
      {
        "Title": {
          "href": "http://www.realestate.com.au/property-house-vic-kensington-116973739",
          "text": "60 WOLSELEY PARADE, Kensington, Vic 3031"
        },
        "image": {
          "href": "http://www.realestate.com.au/property-house-vic-kensington-116973739",
          "alt": "60 WOLSELEY PARADE, Kensington, Vic 3031",
          "src": "http://i4.au.reastatic.net/355x265/e026805577c810c6df722c171a00786f4510cb959390375d589e2d1d90ef2461/main.jpg"
        },
        "price": "SOLD $1,360,000",
        "title2": {
          "href": "http://www.realestate.com.au/property-house-vic-kensington-116973739",
          "text": "60 WOLSELEY PARADE, Kensington, Vic 3031"
        }
      },

我在这个文件中试过了很多在线JSON到CSV转换器，它永远无法正常转换。

我想要一个CSV文件标题，href，文本，图像，href，alt，src，价格

由于文件的复杂性，我在网上任何教程都没有运气。

Answer 1

通常，自动将JSON自动转换为CSV是不可能的，因为一个是对象图，另一个本质上是一个表。这就像尝试将立方体转换为圆形一样。

为了使这个问题更加复杂，你的JSON似乎并不是同质的。最明显的是，第一个条目没有title2实例。为了解决这个问题，我将其分解为以下步骤：

将JSON转换为正确的ObjectGraph。
将对象图折叠为平面列表。根据需要映射字段。
将列表写入CSV。

从您的示例JSON中可以立即将它全部读入内存，或者是否需要将其分解，一次转换一个项目。我怀疑你会找到一个能为你做到这一点的在线工具，因为你的JSON似乎不连贯，你的需求非常具体。

Answer 2

我刚刚发布了一个模块，可以在Node.js中轻松完成此过程

var jsonexport = require('jsonexport');

var contacts = [{
   name: 'Bob',
   lastname: 'Smith',
   family: {
       name: 'Peter',
       type: 'Father'
   }
},{
   name: 'James',
   lastname: 'David',
   family:{
       name: 'Julie',
       type: 'Mother'
   }
},{
   name: 'Robert',
   lastname: 'Miller',
   family: null,
   location: [1231,3214,4214]
},{
   name: 'David',
   lastname: 'Martin',
   nickname: 'dmartin'
}];

jsonexport(contacts,function(err, csv){
    if(err) return console.log(err);
    console.log(csv);
});

https://www.npmjs.com/package/jsonexport

Answer 3

有一个名为json2flat的图书馆它的作用是采用复杂的JSON文档并将其转换为CSV格式。

所以你需要做的是将你的java对象转换为JSON格式。之后你需要将生成的JSON传递给库，它返回一个2D 表示JSON，您也可以从中获取csv。

这个图书馆并不成熟，但仍然很有前途。你应该试一试。

JSON到CSV文件转换

3 个答案: