powershell - cURL 命令在 git bash 中有效，但在 cmd 和 powershell 中无效

Question

以下命令适用于 git bash 但不适用于 cmd 和 powershell

curl -X POST http://localhost:5678/api/findgen -H 'Content-Type: application/json' -d '{"a": "Val 1","b": "Val 2","c": "Val 3","d": "Val 4"}' -o "file.json"

我在 cmd 中收到错误，例如 -

curl: (6) Could not resolve host: application

curl: (6) Could not resolve host: Val 1,b

curl: (6) Could not resolve host: Val 2,c

curl: (6) Could not resolve host: Val 3,d

curl: (3) [globbing] unmatched close brace/bracket in column 6

可能是什么问题？

Answer 1

只需阅读错误消息:

Invoke-WebRequest Cannot bind parameter 'Headers'. Cannot convert the "Content-Type: application/json" value of type "System.String" to type "System.Collections.IDictionary".

在 PowerShell 中， curl是 Invoke-WebRequest 的别名小命令。正如错误指出的那样， Header参数必须是 IDictionary，而不是字符串。这是它在 PowerShell 中的样子:
@{"Content-Type"= "application/json"}
一些参数也不同。这就是我编写请求脚本的方式:

Invoke-WebRequest `
    -Uri "http://localhost:5678/api/findgen" `
    -Headers @{"Content-Type"= "application/json"} `
    -Body '{"a": "Val 1","b": "Val 2","c": "Val 3","d": "Val 4"}' `
    -OutFile "file.json" `
    -Method Post