Question

我将一个简单的本地服务器组合在一起，用于托管仅HTML的Web应用程序。我需要它是因为某些功能（例如AJAX请求）无法通过直接从文件系统打开的HTML使用。

看起来像这样并且可以正常工作。

# source: https://gist.github.com/19WAS85/5424431

$http = [System.Net.HttpListener]::new()
# Hostname and port to listen on
$http.Prefixes.Add("http://localhost:8080/")
# Start the Http Server
$http.Start()

Add-Type -AssemblyName System.Web
# Log ready message to terminal
if ($http.IsListening) {
    write-host "HTTP Server Ready!  " -f 'black' -b 'gre'
    write-host "$($http.Prefixes)" -f 'y'
    #write-host "then try going to $($http.Prefixes)other/path" -f 'y'
}

#New-PSDrive -Name MyPowerShellSite -PSProvider FileSystem -Root $PWD.Path
# INFINTE LOOP
# Used to listen for requests
while ($http.IsListening) {
    # Get Request Url
    # When a request is made in a web browser the GetContext() method will return a request object
    # Our route examples below will use the request object properties to decide how to respond
    $context = $http.GetContext()

    if ($context.Request.HttpMethod -eq 'GET') {

        # We can log the request to the terminal
        write-host "$($context.Request.UserHostAddress)  =>  $($context.Request.Url)" -f 'mag'


        $URL = $context.Request.Url.LocalPath

        # Redirect root to index.html
        if($URL -eq "/") {
          $URL = "/index.html"
        }
        $Content = Get-Content -Encoding Byte -Path "web/$URL"
        $Context.Response.ContentType = [System.Web.MimeMapping]::GetMimeMapping("web/$URL")
        $Context.Response.OutputStream.Write($Content, 0, $Content.Length)
        $Context.Response.Close()

    }
    # powershell will continue looping and listen for new requests...

}

但是，请求要花费很长的时间。文件读取和写入输出流的方式有问题。

有修复程序吗？它是如此之慢，以至于基本上是没有用的。若要尝试，请确保在存在web/子文件夹的地方运行它。例如，尝试打开照片可以轻松测试低速。

Answer 1

密钥正在使用[System.IO.File]::OpenRead生成流，然后将其直接读取的所有内容复制到套接字中，然后将其发送到浏览器。

这是整个Powershell本地目录HTTP服务器。如果要直接提供运行目录，请将"web/$URL"更改为$URL：

$http = [System.Net.HttpListener]::new()
# Hostname and port to listen on
$http.Prefixes.Add("http://localhost:8080/")
# Start the Http Server
$http.Start()

Add-Type -AssemblyName System.Web
# Log ready message to terminal
if ($http.IsListening) {
    write-host "HTTP Server Ready!  " -f 'black' -b 'gre'
    write-host "$($http.Prefixes)" -f 'y'
}

# INFINTE LOOP
# Used to listen for requests
while ($http.IsListening) {
    # Get Request Url
    # When a request is made in a web browser the GetContext() method will return a request object
    # Our route examples below will use the request object properties to decide how to respond
    $context = $http.GetContext()

    if ($context.Request.HttpMethod -eq 'GET') {

        # We can log the request to the terminal
        write-host "$($context.Request.UserHostAddress)  =>  $($context.Request.Url)" -f 'mag'


        $URL = $context.Request.Url.LocalPath

        # Redirect root to index.html
        if($URL -eq "/") {
          $URL = "/index.html"
        }

        $ContentStream = [System.IO.File]::OpenRead( "web/$URL" );
        $Context.Response.ContentType = [System.Web.MimeMapping]::GetMimeMapping("web/$URL")
        $ContentStream.CopyTo( $Context.Response.OutputStream );
        $Context.Response.Close()
    }
    # powershell will continue looping and listen for new requests...
}

为什么我的Powershell本地主机服务器这么慢？

1 个答案: