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Accepted
Ravi Kumar
Asked: 2020-08-22 01:33:32 +0800 CST

在 Powershell 中执行时，语句块或类型定义中缺少关闭“}”

  • 772

我是PowerShell的新手。当我尝试执行以下代码时，出现错误：

“在语句块或类型定义中缺少结束 '}'。”

下面是代码，我不确定我在哪里失踪。

$path = "C:\Users\Dr.Salya\Downloads"
$filename = "rateonlyl-455.zip"

$url = "https://vertexinc.custhelp.com/app/utils/login_form"
$url2 = "https://download-ie.flexnetoperations.com/512175/1386/77/17129077/rateonlyl-455.zip?ftpRequestID=2321180473&server=download-ie.flexnetoperations.com&dtm=DTM20200820125043ODA0MDU5NDEz&authparam=1597953043_bf5ca04b9a74eeb53a272c20ea148517&ext=.zip/"

$ie = New-Object -com InternetExplorer.Application

$ie.visible = $true
$ie.silent = $false

$ie.navigate("$url")

while($ie.ReadyState -ne 4){start-sleep -m 100}
if ($ie.document.url -Match "invalidcert"){
$sslbypass=$ie.Document.getElementsByTagName("a") | where-object {$_.id -eq "overridelink"}
    $sslbypass.click()
    start-sleep -s 5
    }
 

$ie.Document.IHTMLDocument3_getElementById("username").click()
$ie.Document.IHTMLDocument3_getElementById("username").value ='********'
$ie.Document.IHTMLDocument3_getElementById("password").click()
$ie.Document.IHTMLDocument3_getElementById("password").value ='1234'
$ie.Document.IHTMLDocument3_getElementById("").click()

start-sleep 5

$ie.navigate($url2)

start-sleep 10

$ie.Document.body.outerHTML | Out-File -FilePath $path/$filename

错误：

You cannot call a method on a null-valued expression.
At C:\Users\Dr.Salya\Downloads\Vertex1.ps1:22 char:1
+ $ie.Document.IHTMLDocument3_getElementById("username").click()
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidOperation: (:) [], RuntimeException
    + FullyQualifiedErrorId : InvokeMethodOnNull
 
The property 'value' cannot be found on this object. Verify that the property exists and can be set.
At C:\Users\Dr.Salya\Downloads\Vertex1.ps1:23 char:1
+ $ie.Document.IHTMLDocument3_getElementById("username").value ='nnaisv ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidOperation: (:) [], RuntimeException
    + FullyQualifiedErrorId : PropertyNotFound
 
You cannot call a method on a null-valued expression.
At C:\Users\Dr.Salya\Downloads\Vertex1.ps1:24 char:1
+ $ie.Document.IHTMLDocument3_getElementById("password").click()
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidOperation: (:) [], RuntimeException
    + FullyQualifiedErrorId : InvokeMethodOnNull
 
The property 'value' cannot be found on this object. Verify that the property exists and can be set.
At C:\Users\Dr.Salya\Downloads\Vertex1.ps1:25 char:1
+ $ie.Document.IHTMLDocument3_getElementById("password").value ='Vertex ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidOperation: (:) [], RuntimeException
    + FullyQualifiedErrorId : PropertyNotFound
 
You cannot call a method on a null-valued expression.
At C:\Users\Dr.Salya\Downloads\Vertex1.ps1:26 char:1
+ $ie.Document.IHTMLDocument3_getElementById("").click()
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidOperation: (:) [], RuntimeException
    + FullyQualifiedErrorId : InvokeMethodOnNull
powershell internet-explorer

1 个回答

  1. Best Answer

    您必须抓取页面以确保获得正确的对象/元素并一次执行一个用例。以及对象/元素是否具有解决用例所需的属性和方法。

    例如，只是让登录的东西工作。

    # $path     = "C:\Users\Dr.Salya\Downloads"
# $filename = "rateonlyl-455.zip"

$url  = "https://vertexinc.custhelp.com/app/utils/login_form"
# $url2 = "https://download-ie.flexnetoperations.com/512175/1386/77/17129077/rateonlyl-455.zip?ftpRequestID=2321180473&server=download-ie.flexnetoperations.com&dtm=DTM20200820125043ODA0MDU5NDEz&authparam=1597953043_bf5ca04b9a74eeb53a272c20ea148517&ext=.zip/"

$ie = New-Object -com InternetExplorer.Application

$ie.visible = $true
$ie.silent = $false
$ie.navigate($url)
while($ie.ReadyState -ne 4){start-sleep -m 100}

if ($ie.document.url -Match "invalidcert")
{
    $sslbypass = $ie.Document.getElementsByTagName('a') | 
                 where-object {$_.id -eq "overridelink"}
    $sslbypass.click()
    start-sleep -s 5
}
 
$ie.Document.forms | 
Select-Object className, id, tagName, innerText, outerText 
# Results
<#
className : rn_OpenLoginForm rn_OAuthForm
id        : rn_OpenLogin_6_Info
tagName   : FORM
innerText :  
            
            What will happen:
            When you click on this button you will be taken to Yahoo. 
            Once you log in, Yahoo will verify you and send you back here where 
            you'll be logged in! 
outerText :  
            
            What will happen:
            When you click on this button you will be taken to Yahoo. 
            Once you log in, Yahoo will verify you and send you back here where 
            you'll be logged in! 

className : 
id        : rn_LoginForm_7_Form
tagName   : FORM
innerText : Username (Your email address)
            
            Password
            
             
outerText : Username (Your email address)
            
            Password
#>

$ie.Document.forms.item('rn_LoginForm_7_Form') | 
Select-Object -Property className, Name, id, Type, Value, ie9_tagName | 
Format-Table -AutoSize
# Results
<#
className name             id                      type     value  ie9_tagName
--------- ----             --                      ----     -----  -----------
          Contact.Login    rn_LoginForm_7_Username text            INPUT      
          Contact.Password rn_LoginForm_7_Password password        INPUT      
                           rn_LoginForm_7_Submit   submit   Log In INPUT 
#>


$ie.Document.getElementById('rn_LoginForm_7_Username').Value = 'SomeUserName'
$ie.Document.getElementById('rn_LoginForm_7_Password').Value = 'Password'
$ie.Document.getElementById('rn_LoginForm_7_Submit').Click()

    ...然后像本网站一样转到下一页（如果有）。然而，由于我没有在此站点上使用的帐户，因此我无法执行和进一步的操作。然而，即使从登录页面中提取链接列表，对于任何后续页面都是相同的。

    $ie.Document.links | 
ForEach-Object {
[PSCustomObject]@{
    className   = $PSItem.className
    tagName     = $PSItem.tagName
    innerText   = $PSitem.innerText
    outerText   = $PSitem.outerText
    href        = $PSItem.href 
    ClickMethod = $PSItem.Click
}}

# Results
<#

className   : 
tagName     : A
innerText   :  | myVertex
outerText   :  | myVertex
href        : javascript:void
ClickMethod : void click ()

className   : rn_LoginProvider rn_Yahoo
tagName     : A
innerText   : Yahoo
outerText   : Yahoo
href        : javascript:void(0)
ClickMethod : void click ()

className   : 
tagName     : A
innerText   : Forgot your password?
outerText   : Forgot your password?
href        : https://vertexinc.custhelp.com/app/utils/account_assistance/session/L3RpbWUvMTU5ODA0OTI1Ni9nZW4vMTU5ODA0OTI1Ni9zaWQvZlU4S0VoTlNVd2lJVjh1bmZDcTVVUHFvWWRF
              TFZOVDVPU3JNYXJWeWV3SXdsYSU3RUclN0VjQ3VOc1BTaWtxbGFmMkFKclY0bGZYcTZaa1B4T1g1cF9ISVhRbVpwaXF5c3ZQbUVIYVNjckhLR3ByazNYRDNfaDBQQVZXQSUyMSUyMQ%3D%3D
ClickMethod : void click ()

className   : 
tagName     : A
innerText   : Sign Up
outerText   : Sign Up
href        : https://vertexinc.custhelp.com/app/utils/create_account/redirect/utils%252Faccount_confirmation/session/L3RpbWUvMTU5ODA0OTI1Ni9nZW4vMTU5ODA0OTI1Ni9zaWQv
              ZlU4S0VoTlNVd2lJVjh1bmZDcTVVUHFvWWRFTFZOVDVPU3JNYXJWeWV3SXdsYSU3RUclN0VjQ3VOc1BTaWtxbGFmMkFKclY0bGZYcTZaa1B4T1g1cF9ISVhRbVpwaXF5c3ZQbUVIYVNjckhLR3ByazNY
              RDNfaDBQQVZXQSUyMSUyMQ%3D%3D
ClickMethod : void click ()

className   : 
tagName     : A
innerText   :  
outerText   :  
href        : https://vertexinc.custhelp.com/app/home/session/L3RpbWUvMTU5ODA0OTI1Ni9nZW4vMTU5ODA0OTI1Ni9zaWQvZlU4S0VoTlNVd2lJVjh1bmZDcTVVUHFvWWRFTFZOVDVPU3JNYXJWeWV3
              SXdsYSU3RUclN0VjQ3VOc1BTaWtxbGFmMkFKclY0bGZYcTZaa1B4T1g1cF9ISVhRbVpwaXF5c3ZQbUVIYVNjckhLR3ByazNYRDNfaDBQQVZXQSUyMSUyMQ%3D%3D
ClickMethod : void click ()

className   : 
tagName     : A
innerText   : Privacy Policy
outerText   : Privacy Policy
href        : javascript:showPrivacyPolicy();
ClickMethod : void click ()

className   : 
tagName     : A
innerText   : Terms of Use
outerText   : Terms of Use
href        : javascript:showTerms();
ClickMethod : void click ()

className   : 
tagName     : A
innerText   :   Contact: 1-800-281-1900
outerText   :   Contact: 1-800-281-1900
href        : tel:1-800-281-1900
ClickMethod : void click ()

className   : 
tagName     : A
innerText   : 
outerText   : 
href        : https://www.facebook.com/vertexinc1/
ClickMethod : void click ()

className   : 
tagName     : A
innerText   : 
outerText   : 
href        : https://twitter.com/vertexinc
ClickMethod : void click ()

className   : 
tagName     : A
innerText   : 
outerText   : 
href        : https://www.linkedin.com/company/vertex-inc.
ClickMethod : void click ()

className   : 
tagName     : A
innerText   : 
outerText   : 
href        : https://www.youtube.com/user/vertexinc
ClickMethod : void click ()         
#>

$ie.Document.links | 
Select-Object -Property outerText, href
# Results
<#
outerText             href                                                                                           
---------             ----                                                                                           
 | myVertex           javascript:void                                                                                
Yahoo                 javascript:void(0)                                                                             
Forgot your password? https://vertexinc.custhelp.com/app/utils/account_assistance                                    
Sign Up               https://vertexinc.custhelp.com/app/utils/create_account/redirect/utils%252Faccount_confirmation
                      https://vertexinc.custhelp.com/app/home/                                                       
Privacy Policy        javascript:showPrivacyPolicy();                                                                
Terms of Use          javascript:showTerms();                                                                        
  Contact: 1-800-2... tel:1-800-281-1900                                                                             
                      https://www.facebook.com/vertexinc1/                                                           
                      https://twitter.com/vertexinc                                                                  
                      https://www.linkedin.com/company/vertex-inc.                                                   
                      https://www.youtube.com/user/vertexinc 
#>


$ie.Document.getElementsByTagName('A')[4] | 
ForEach-Object {
[PSCustomObject]@{
    className   = $PSItem.className
    id          = $PSItem.id
    tagName     = $PSItem.tagName
    innerText   = $PSitem.innerText
    outerText   = $PSitem.outerText
    href        = $PSItem.href 
    ClickMethod = $PSItem.Click
}}
# Results
<#
className   : 
id          : 
tagName     : A
innerText   : Sign Up
outerText   : Sign Up
href        : https://vertexinc.custhelp.com/app/utils/create_account/redirect/utils%252Faccount_confirmation
ClickMethod : void click ()
#>


($ie.Document.getElementsByTagName('A') | 
Where outerText -eq 'Forgot your password?').Click()
    
($ie.Document.getElementsByTagName('A') | 
Where outerText -eq 'Sign Up').Click()

    最后一件事，您可以自动化允许它的站点。一些站点不允许对其属性（或其中的一部分）进行自动化，它们会主动对其进行编码以防止它发生。

    • 0

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