How to display server name and ping result only from powershell script in html web page

问题

I am trying to create the script for checking if the servers are online, which will be displayed as HTML web page using "ConvertTo-Html" property. I also applied some small CSS into it.

Here is my code:

$Header = @"
<style>
table {
  font-family: "Trebuchet MS", Arial, Helvetica, sans-serif;
  border-collapse: collapse;
  width: 100%;
}
th {
  padding-top: 12px;
  padding-bottom: 12px;
  text-align: left;
  background-color: green;
  color: white;
}
</style>
"@


$OS = Test-Connection -ComputerName Server1, Server2, Server3 | ConvertTo-Html
ConvertTo-Html -Body "$OS" -Title "Fragment" -Head $Header | Out-File StatusReport.html

Output result in the file "StatusReport.html" shows too much unnecessary information (photo attached). How can I display only few of them: Server name, ping result?

回答1:

Ass Lee commented, you'll need to select the properties you want from the output. There are quite a few properties but none of them are Server or result.

To see a list of the properties, pipe the output to Get-Member

Test-Connection google.com -count 1 | Get-Member

You can also use Format-List * to see the properties and values

Test-Connection google.com -count 1 | Format-List *

Once you know the properties you're after you can select them by name

Test-Connection google.com -count 1 | Select-Object Address,IPv4Address,StatusCode

If you want to rename the properties, you can use calculated properties

Test-Connection google.com -count 1 |
    Select-Object @{n='Server';e={$_.Address}},IPv4Address,@{n='Result';e={'Successful'}}

However this does not account for any failed ping results. Here's a bit of code that will gather the successes and failures, then combine the two. Note that the property names need to match.

$targets = 'server1', 'server2', 'server3', 'dontexist'

$success = Test-Connection -ComputerName $targets -Count 1 -ErrorAction SilentlyContinue -ErrorVariable errors |
               Select-Object @{n='Server';e={$_.address}},IPv4Address,@{n='Result';e={'Successful'}}

$failed = $errors.exception.message |
              Where-Object {$_ -match "computer '(.+?)'"} |
                  Select-Object @{n='Server';e={$matches.1}},
                                @{n='IPv4Address';e={"N/A"}},
                                @{n='Result';e={'Failed'}}

$success + $failed

You can use splatting to make the code easier to read and maintain.

$params = @{
    ComputerName  = 'server1', 'server2', 'server3', 'dontexist'
    Count         =  1
    ErrorAction   = 'SilentlyContinue'
    ErrorVariable = 'errors'
}

$success = Test-Connection @params |
               Select-Object @{n='Server';e={$_.address}},
                             IPv4Address,
                             @{n='Result';e={'Successful'}}

$failed = $errors.exception.message |
              Where-Object {$_ -match "computer '(.+?)'"} |
                  Select-Object @{n='Server';e={$matches.1}},
                                @{n='IPv4Address';e={"N/A"}},
                                @{n='Result';e={'Failed'}}

$success + $failed

Combining this with a slightly modified version of your code we end up with this as the final script.

$Header = @"
<style>
table {
  font-family: "Trebuchet MS", Arial, Helvetica, sans-serif;
  border-collapse: collapse;
  width: 100%;
}
th {
  padding-top: 12px;
  padding-bottom: 12px;
  text-align: left;
  background-color: green;
  color: white;
}
</style>
"@

$params = @{
    ComputerName  = 'server1', 'server2', 'server3', 'dontexist'
    Count         =  1
    ErrorAction   = 'SilentlyContinue'
    ErrorVariable = 'errors'
}

$success = Test-Connection @params |
               Select-Object @{n='Server';e={$_.address}},
                             IPv4Address,
                             @{n='Result';e={'Successful'}}

$failed = $errors.exception.message |
              Where-Object {$_ -match "computer '(.+?)'"} |
                  Select-Object @{n='Server';e={$matches.1}},
                                @{n='IPv4Address';e={"N/A"}},
                                @{n='Result';e={'Failed'}}

$success + $failed |
    ConvertTo-Html -Title "Fragment" -Head $Header |
        Set-Content -Path StatusReport.html -Encoding UTF8

来源：https://stackoverflow.com/questions/64828931/how-to-display-server-name-and-ping-result-only-from-powershell-script-in-html-w

标签

powershell