如何解决如何从json文件中排除数据以转换为csv文件powershell
我想将json文件转换为csv-
{
"count": 28,"value": [
{
"commitId": "65bb6a911872c314a9225815007d74a","author": {
"name": "john doe","email": "john.doe@gmail.com","date": "2020-06-09T17:03:33Z"
},"committer": {
"name": "john doe","date": "2020-06-09T17:03:33Z"
},"comment": "Merge pull request 3 from dev into master","changeCounts": {
"Add": 6,"Edit": 0,"Delete": 0
},"url": "https://dev.azure.com/","remoteUrl": "https://dev.azure.com/"
},{
"commitId": "bdcb4a1e1e671c15333eacc31aa9795fe32","author": {
"name": "john doe","date": "2020-06-09T17:03:33Z"
},"committer": {
"name": "john doe","comment": "Updated FGDH","changeCounts": {
"Add": 0,"Edit": 1,"Delete": 0
},"remoteUrl": "https://dev.azure.com/"
}
]
}
我不希望CSV文件中的所有字段。我只需要commitid，commiter.name，commiter.date和注释。
Get-Content "\commitinfo.json" -Raw | ConvertFrom-Json | Select -Expand value |Export-Csv
"\commitinfo.csv"
以此获取所有数据，如何获取所选数据？
另一个json文件-
{
"value": [
{
"id": "5c264dd2-bbcf-4537-8a63-19a0a4d2dc","name": "Develop","project": {
"id": "0042dc5c-fd13-4e3c-bfd7-7feb52e287","name": "test","state": "wellFormed","revision": 11,"visibility": "private","lastUpdateTime": "2020-04-15T04:04:30.01Z"
},"defaultBranch": "refs/heads/master","size": 55438,"remoteUrl": "https://dev.azure.com","sshUrl": "git@ssh.dev.azure.com:v3","webUrl": "https://dev.azure.com/"
},{
"id": "3219e8e2-281d-40ad-81c8-1cecf8","name": "automation","project": {
"id": "0e2df786-94a0-42c8-b068-c2656b","revision": 19,"lastUpdateTime": "2020-05-02T03:32:50.937Z"
},"size": 0,"remoteUrl": "https://dev.azure.com/","webUrl": "https://dev.azure.com/"
}
]
}
从该文件中，我只想选择大小为-0的项目，CSV应该看起来像这样
name size
a 0
b 0
解决方法
注意：为简洁起见，省略了以下命令Export-Csv的使用。
您需要将Select-Object与calculated properties结合使用：
(Get-Content commitinfo.json -Raw | ConvertFrom-Json).value |
Select-Object commitid,@{n='committerName'; e={ $_.committer.name } },@{n='committerDate'; e={ $_.committer.date } },comment
在第二种情况下，添加Where-Object以过滤感兴趣的对象：
(Get-Content other.json -Raw | ConvertFrom-Json).value |
Where-Object size -eq 0 |
Select-Object name,size
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