应该在 Powershell 中使用什么异常类型来捕获由于无效字符导致的 XML 解析错误? [英] What exception type should be used in Powershell to catch a XML parse error due to invalid characters?

问题描述

下面脚本中的第 2 行生成 -

Line 2 in the script below generates -

无法将值System.Object[]"转换为类型System.Xml.XmlDocument".错误:'→'，十六进制值 0x1A，是无效字符.第 39 行，第 23 位."

"Cannot convert value "System.Object[]" to type "System.Xml.XmlDocument". Error: "'→', hexadecimal value 0x1A, is an invalid character. Line 39, position 23."

在 line:1 char:8+ [xml]$x <<<<= 获取内容 4517.xml+ CategoryInfo : MetadataError: (:) [], ArgumentTransformationMetadataException+ FullyQualifiedErrorId : RuntimeException"

At line:1 char:8 + [xml]$x <<<< = Get-Content 4517.xml + CategoryInfo : MetadataError: (:) [], ArgumentTransformationMetadataException + FullyQualifiedErrorId : RuntimeException"

应该在(脚本的)第 4 行指定什么异常来捕获上述错误?

What exception should be specified on line 4 (of the script) to catch the aforementioned error?

try {
    [xml]$xml = Get-Content $file # line 2
}
catch [?] {                       # line 4
    echo "XML parse error!"
    # handle the parse error differently
}
catch {
    echo $error
    # some general error
}

感谢您的关注(和回答)

Thanks for looking (and answering)

阿德里安

推荐答案

这是一种发现异常的完整类型名称的方法，这里的结果给出了@Adrian Wright 给出的 System.Management.Automation.ArgumentTransformationMetadataException.

Here is a way to discover yourself the full type name of an Exception, the result here gives System.Management.Automation.ArgumentTransformationMetadataException as given by @Adrian Wright.

Clear-Host
try {
    [xml]$xml = Get-Content "c:Temp1.cs" # line 2
}
catch {
    # Discovering the full type name of an exception
    Write-Host $_.Exception.gettype().fullName
    Write-Host $_.Exception.message
}

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