使用具有不同键的 jq 将 json 转换为 csv

【问题标题】：Convert json to csv using jq with different key使用具有不同键的 jq 将 json 转换为 csv
【发布时间】：2021-10-29 22:36:57
【问题描述】：

给定一个 JSON 对象数组，我想输出一个 CSV，其中一行包含每个对象键，其他行基于每个对象值。

输入的json是：

{
  "PCID000": {
    "OSmodle": "LINUX",
    "IEversion": "2.15.0",
    "hardwareUSB": [
      "Card reader",
      "keyboard"
    ],
    "OrderStatus": "01"
  },
  "PCID999": {
    "OSmodle": "LINUX",
    "OSversion": "4.0",
    "hardwareUSB": [],
    "OrderStatus": "01"
  }
}

输出看起来像这样。标头可以硬编码。

PCID,OSmodle,OSversion,IEversion,hardwareUSB, OrderStatus
"PCID000","LINUX",,"2.15.0","Card reader&keyboard","01"
"PCID999","LINUX","4.0",,"01

【问题讨论】：

标签： json linux ubuntu command jq

【解决方案1】：

您可以使用to_entries 函数将{"a": 1, "b": 2} 等对象转换为[{"key": "a", "value": 1}, {"key": "b", "value": 2}] 等键值对象数组。然后对其进行映射以选择关键值和感兴趣的部分。

jq 脚本如下所示：

to_entries | map([
    .key,
    .value.OSmodle,
    .value.OSversion,
    .value.IEversion,
    (.value.hardwareUSB | join("&")),
    .value.OrderStatus])
| ["PCID", "OSmodle", "OSversion", "IEversion", "hardwareUSB", "OrderStatus"], .[]
| @csv

输出（-r）：

"PCID","OSmodle","OSversion","IEversion","hardwareUSB","OrderStatus"
"PCID000","LINUX",,"2.15.0","Card reader&keyboard","01"
"PCID999","LINUX","4.0",,"","01"

jqplay

【讨论】：

您可以使用( . value | .OSmodle, .IEversion, (.hardwareUSB | join("&"))), .OrderStatus ) 而不是一遍又一遍地使用.value。