在 Windows 上通过计划任务加载 URL 的推荐方法 [英] Recommended method for loading a URL via a scheduled task on Windows

问题描述

我在 Windows 机器上托管了一个网页，我需要确保每天至少加载一次.我目前的计划是创建一个计划任务，打开 Internet Explorer 并点击 URL:

I have a webpage hosted on a Windows box that I need to assure gets loaded at least once/day. My current plan is to create a scheduled task that opens Internet Explorer and hits the URL:

"C:Program FilesInternet Exploreriexplore.exe" myurl.com/script_to_run_daily.aspx

这很容易设置并且工作正常，但它让我觉得是一个黑客，因为 Internet Explorer 实际上必须打开并点击这个 URL.我不需要从这个页面返回任何输入，它只是在命中时将缓存数据存储在文件中.

This was simple to setup and works fine, but it strikes me as a hack because Internet Explorer actually has to open and hit this URL. I don't need any input back from this page, it simply stores cached data in files when it's hit.

有没有更巧妙的方法来做到这一点?以防万一，这是一个 VB.net 站点.

Is there a slicker way of doing this? In case it matters, this is a VB.net site.

提前致谢！

推荐答案

正如 Remus Rusanu 所指出的，PowerShell 将是可行的方法.这是一个简单的单行代码，您可以使用它来创建计划任务，而无需编写单独的 .ps1 文件:

As pointed out by Remus Rusanu, PowerShell would be the way to go. Here's a simple one-liner that you can use to create a scheduled task, without needing to write a separate .ps1 file:

powershell -ExecutionPolicy Bypass -Command
    Invoke-WebRequest 'http://localhost/cron.aspx' -UseBasicParsing

请注意，在所有这些命令行中添加换行符只是为了清楚起见.在尝试运行命令之前删除它们.

Note that line breaks are added only for clarity in all of these command lines. Remove them before you try running the commands.

您可以像这样创建计划任务:(从提升的命令提示符运行)

You can create the scheduled task like this: (run this from an elevated command prompt)

schtasks /create /tn "MyAppDailyUpdate"
    /tr "powershell -ExecutionPolicy Bypass -Command
        Invoke-WebRequest 'http://localhost/cron.aspx' -UseBasicParsing"
    /sc DAILY /ru System

以上适用于 PowerShell 3+.如果您需要可以与旧版本一起使用的东西，这里是单行:

The above will work for PowerShell 3+. If you need something that will work with older versions, here's the one-liner:

powershell -ExecutionPolicy unrestricted -Command
    "(New-Object Net.WebClient).DownloadString("http://localhost/cron.aspx")"

您可以像这样创建计划任务:(从提升的命令提示符)

You can create the scheduled task like this: (from an elevated command prompt)

schtasks /create /tn "MyAppDailyUpdate"
    /tr "powershell -ExecutionPolicy unrestricted -Command
        "(New-Object Net.WebClient).DownloadString(\"http://localhost/cron.aspx\")""
    /sc DAILY /ru System

schtasks 示例将任务设置为每天运行 - 请参阅 schtasks 文档 了解更多选项.

The schtasks examples set up the task to run daily - consult the schtasks documentation for more options.

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