json 如何使用 Powershell 访问宁静的网络服务？
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How can I use Powershell to access a restful webservice?
提问by reconbot
I need to integrate an existing powershell script to update it's status via a restful web service that returns json. I'm a bit new to powershell but I was able to find the System.Net.WebRequest object do something like the following.
我需要集成一个现有的 powershell 脚本，以通过返回 json 的 Restful Web 服务来更新它的状态。我对 powershell 有点陌生，但我能够找到 System.Net.WebRequest 对象执行以下操作。
$a = [System.Net.WebRequest]::Create("http://intranet/service/object/")
$a.Method = "GET"
$a.GetResponse()
which returns a json array of objects
它返回一个 json 对象数组
[ {id:1}, {id:2}] // etc
I'm not sure where to go from here and how to parse this into a native datatype. I'd like to be able to post and delete as well.
我不知道从哪里开始以及如何将其解析为本机数据类型。我也希望能够发布和删除。
Any pointers? And are there any json/rest libraries or command-lets?
任何指针？是否有任何 json/rest 库或命令包？
回答by Dave
What you want is PowerShell 3and its Invoke-RestMethod, ConvertTo-Json, and ConvertFrom-Json cmdlets. Your code will end up looking like:
您需要的是 PowerShell 3及其Invoke-RestMethod、ConvertTo-Json和ConvertFrom-Json cmdlet。您的代码最终将如下所示：
$stuff = invoke-RestMethod -Uri $url -Method Get;
$stuff = invoke-RestMethod -Uri $url -Method Get;
and there shouldn't even be a need to invoke ConvertFrom-Jsonon the resulting $stuff => it's already in a usable non-string format.
甚至不需要在结果 $stuff 上调用ConvertFrom-Json=> 它已经是可用的非字符串格式。
As for POSTs|PUTs, simply use PowerShell hashes and arrays to structure your data and then call ConvertTo-Jsonon it before passing it to invoke-RestMethod or invoke-WebRequest:
至于 POST|PUT，只需使用 PowerShell 哈希和数组来构造数据，然后在将其传递给 invoke-RestMethod 或 invoke-WebRequest 之前对其调用ConvertTo-Json：
invoke-WebRequest -Uri $url -ContentType application/json -Method Post -Body $objectConvertedToJson
invoke-WebRequest -Uri $url -ContentType application/json -Method Post -Body $objectConvertedToJson
See http://technet.microsoft.com/en-us/Library/hh849971.aspxfor details.
有关详细信息，请参阅http://technet.microsoft.com/en-us/Library/hh849971.aspx。
回答by Victor Haydin
You could use DataContractJsonSerializer, which is a part of standard .Net library.
您可以使用DataContractJsonSerializer，它是标准 .Net 库的一部分。
回答by x0n
@Jaykul wrote a nice set of RESTful functions that are part of his Mindtouch dreamwiki script over here: http://poshcode.org/691
@Jaykul 在这里编写了一组不错的 RESTful 函数，这些函数是他的 Mindtouch dreamwiki 脚本的一部分：http://poshcode.org/691
