Curl 和 powershell json 问题

Question

我仍然在让 json 在 powershell 中使用 curl 命令时遇到问题。

即使是一个简单的将某些内容发布到弹性中的请求也会因错误而惨遭失败

意外的字符（'D'（代码 68））：期望用双引号来开始字段名称

我已经将脚本简化为基础，只是为了尝试测试 curl 和 json，但仍然会失败

$curlExe = "h:\powershell\esb\elastic\curl\curl.exe"

$elasticdata = @{
        timereceived = "test"
        timesent     = "testing"
        name         = "anon"
        status       = 0
    }

$curldata = $elasticdata | convertto-json -Compress

$elasticoutput = "h:\powershell\esb\elastic\elastic.txt"
$elastichost   = "http://localhost:9200/newtest20/filecopy/?pretty"
$elasticheader = "content-type: application/json"
$elamethod     = "POST"

$curlargs = $elastichost,
            '-X',$elamethod,
            '-d',$curldata,
            '-H',$elasticheader

& $curlexe @curlargs

Answer 1

如果您的服务器正在运行Powershell 2.0，您将没有Invoke-webRequest，但ConvertTo-Json 也会丢失。 我过去也遇到过这个问题，我使用这些函数来解决这个问题

function Invoke-WebRequest([string] $Url, [string] $Method, $BodyObject)
{    
    $request = [System.Net.WebRequest]::Create($Url)
    $request.Method = $Method
    $request.ContentType = "application/json"

    if ($Method -eq "POST")
    {
        try
        {
            $body = ConvertTo-Json20 -InputObject $BodyObject
            $requestStream = $request.GetRequestStream()
            $streamWriter = New-Object System.IO.StreamWriter($requestStream)
            $streamWriter.Write($body)            
        }

        finally
        {
            if ($null -ne $streamWriter) { $streamWriter.Dispose() }
            if ($null -ne $requestStream) { $requestStream.Dispose() }
        }
    }

    $response = $request.GetResponse()    
    if ($response.StatusCode -ne [System.Net.HttpStatusCode]::OK)
    {
        throw "ERROR Could not $Method url [$Url]"
    }

    return $response
}

function ConvertTo-Json20($InputObject){
    Add-Type -Assembly System.Web.Extensions
    $jsonSerializer = New-Object System.Web.Script.Serialization.JavascriptSerializer

    return $jsonSerializer.Serialize($InputObject)
}