PowerShell-HTML解析:从网站获取信息 [英] PowerShell - HTML parsing: get information from a website

问题描述

更新，脚本正在使用PowerShell V3.0，谢谢@ Doug

我想使用以下PowerShell脚本从汉莎航空获取航班状态信息. 我可以在浏览器中看到航班状态信息，但找不到任何通过脚本访问此信息的方法.

I want to use the following PowerShell script to get flight status information from Lufthansa. I can see flight status information in the browser, but I haven't found any way to access this information with my script.

我想从网站上获得以下信息:

I want to get the following information from the website:

• 航班状态
• 时间(出发，到达)
• 机场(出发，到达)
• 航班号(仅汉莎航空)

脚本:

$flight = " LH3396"
$url = "http://bing.com?q=flight status for $flight"
$result = Invoke-WebRequest $url
$elements = $result.AllElements | Where Class -eq "ans" | Select -First 1 -ExpandProperty innerText 

#[string[]]$resultArray

$resultArray = @()

foreach($element in $elements.Split("`n")){
    if($element.Length -gt "2")
    {$resultArray += $element}
}

推荐答案

这是在PowerShell v3中查询Bing的一种方式

Here is a way to query Bing in PowerShell v3

function Get-FlightStatus {
    param($query)

    $url = "http://bing.com?q=flight status for $query"

    $result = Invoke-WebRequest $url

    $result.AllElements | 
        Where Class -eq "ans" |
        Select -First 1 -ExpandProperty innerText    
}

Get-FlightStatus LH3102

Flight status for Lufthansa 3102

To depart · Jan 30, 2012

From: Hamburg (HAM) 05:35 PM terminal 2

To: Vienna (VIE) 07:05 PM


Bing Travel   Source: www.flightstats.com, 1 minute ago

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