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README
Apache-2.0

Json2Csv

Js HTML 实现的一款通用型JSON数据提取工具,支持自动识别JSON数据节点并有序提取为CSV文件。
Convenient JSON data extraction tool.

使用简介

浏览器打开 json2csv.html, 支持json字符、json文件、以及连续的api地址请求(跨域请求需关闭浏览器同源策略。)

img_2.png

数据配置

  1. 数据路径:设置Json中数据所处路径,如'root.topics.data' 'data.items' ...

  2. 字段解析:为空则为全量解析,自动识别字段头。可自定义 排序、映射、按需导出csv文件。

    • 假设数据
      • [{"id":1,"name":"张三","age":19},{"id":2,"name":"李四","age":20}]
    • 按需排序 字段名逗号隔开(支持,隔开的字符串/数组格式)
      • name,id,age / ["age","name","id"]
    • 字段映射csv头 排序+按需导出 ,移除id列
      • {name:"名字",age:'年龄'}
  3. 添加csv头:选择框 csv第一行是否包含字段信息。

  4. 支持直接粘贴json字符串或拖拽上传json文件,生成为同名csv文件,支持多文件。

支持以下常见JSON数据格式:

1.任意多级节点下的数组数据

{"data":{"items":[{"title":"one","price":23},{"title":"two","price":92},{"title":"three","price":5623}]}}

2.兼容处理数据区域非数组结构而是一个对象的情况

{"data":{"items":{"1":{"title":"one","name":"test1"},"2":{"title":"two","name":"test2"},"3":{"title":"three","name":"test3"}}}}

3.支持非严格的JSON数据,字段名可 不加双引号 ""

使用动态创建函数,会遇到和 eval() 类似的的安全问题和(相对较小的)性能问题。与 eval() 不同的是,Function 构造函数创建的函数只能在全局作用域中运行。 MDN Function介绍

{data:{items:[{title:"one",price:23},{"title":"two","price":92}]}}

/**
 * 小工具使用,存在的安全问题,可知可控。
 * @param str
 * @returns {null|*}
 */
function parseJson2(str) {
    try {
        return new Function('"use strict"; return '+str)();
    } catch (e) {
        addMsg("解析json失败")
        console.warn("Function解析失败", e);
        return null;
    }
}

数据位于"data.items"多级节点下,则填写【数据路径】,如data.items img.png

本地测试,秒级处理20M json文件,Chrome 版本 114.0.5735.134(正式版本) (64 位) img_1.png

谷歌浏览器 关闭同源策略方法

1.建数据缓存文件夹:C:\MyChromeUserData
2.建立快捷方式: 桌面 → 右键 → 新建 → 快捷方式 → 输入对象目标地址:

"C:\Program Files\Google\Chrome\Application\chrome.exe" --allow-file-access-from-files --user-data-dir="C:\MyChromeUserData" --disable-web-security
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简介

js html 实现的通用型JSON数据提取工具,支持自动识别JSON数据节点并有序提取为CSV文件。 Convenient JSON data extraction tool. 展开 收起
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