Question

我尝试使用jq将JSON输出转换为CSV。

这里的input.json（剥离了很多 - 我可能有多达600个数组元素，但每个数组元素相同）：

    {
  "latitude": [39.582, 39.582, 39.582],
  "longitude": [26.675, 26.675, 26.675],
  "drivingDifficultyIndex": [0, 34, 34],
  "iconCode": [31, 11, 11],
  "observationTimeUtcIso": ["2016-06-26T00:20:00+0000", "2016-06-26T01:20:00+0000", "2016-06-26T02:20:00+0000"],
  "precip1Hour": [0.0, 0.1, 0.5]
}

到目前为止，我最好的尝试是：

jq --raw-output 'keys , .[] | @csv'

使

"drivingDifficultyIndex","iconCode","latitude","longitude","observationTimeUtcIso","precip1Hour"
39.582,39.582,39.582
26.675,26.675,26.675
0,34,34
31,11,11
"2016-06-26T00:20:00+0000","2016-06-26T01:20:00+0000","2016-06-26T02:20:00+0000"
0,0.1,0.5

How to convert arbirtrary simple JSON to CSV using jq?提供了一些很好的提示，但我仍然以行（如上所述）而不是列结束数据。

我追求的是：

"latitude","longitude","drivingDifficultyIndex","iconCode","observationTimeUtcIso","precip1Hour"
39.582, 26.675, 0,  31, \2016-06-26T00:20:00+0000\",    0
39.582, 26.675, 34, 11, \"2016-06-26T01:20:00+0000\",   0.1
39.582, 26.675, 34, 11, \"2016-06-26T02:20:00+0000\",   0.5

每个阵列中最多有600个元素，我需要CSV文件为每个阵列分别设置一个列;第2行向下需要转置。

有人可以帮助jq产生我想要的输出吗？

...谢谢

更新：

jq --raw-output 'keys_unsorted, map(.[0]) , map(.[1]), map(.[2]) |@csv'

对于上面的示例3数组成员，

给了我想要的东西。但是，我怎样才能解决更大（未知）的数组元素？

Answer 1

事实上，使用transpose可以提供一个简单的单行解决方案：

( keys_unsorted, ([.[]] | transpose)[]) | @csv

使用样本数据，使用-r选项调用jq会产生：

"latitude","longitude","drivingDifficultyIndex","iconCode","observationTimeUtcIso","precip1Hour"
39.582,26.675,0,31,"2016-06-26T00:20:00+0000",0
39.582,26.675,34,11,"2016-06-26T01:20:00+0000",0.1
39.582,26.675,34,11,"2016-06-26T02:20:00+0000",0.5

jq：将带有数组的JSON文件转换为CSV - 转置？

1 个答案: