Question

我需要填写一个内部网站的表格。我可以使用此代码成功登录门户网站页面

selectedPosition: number;

removeSelectedRows() {
    this.dataSource.data = this.dataSource.data.filter(element => element.position !== this.selectedPosition);
}

以上工作正常。它会将我定向到需要填写另一张表格的新链接。因此，我在重复使用上面的代码来填写用户字段和提交按钮的表单。

此页面内有多种形式，因此我想将其范围缩小到特定的$ie = New-Object -Com InternetExplorer.Application $ie.Visible = $true $ie.Navigate("https://some-internal-ip/login") while ($ie.ReadyState -ne 4) {Start-Sleep -m 100}; #Login $form = $ie.document.forms[0] $inputs = $form.GetElementsByTagName("input") ($inputs | where {$_.Name -eq "username"}).Value = $username ($inputs | where {$_.Name -eq "password"}).Value = $password ($inputs | where {$_.Name -eq "action:Login"}).Click() #after login - navigate to this link while ($ie.ReadyState -ne 4 -or $ie.Busy) {Start-Sleep -m 100} Start-Sleep -m 2000 $ie.Navigate("https://some-internal-ip/monitor/users")。

HTML表单：

id="trackingSearchForm"

获取表格ID并填写

<form action="https://.../" method="POST" name="trackingSearchForm" id="trackingSearchForm" accept-charset="utf-8" onsubmit="return false;">
<input name="user" onkeypress="keyPressHandler(this.form, event)" class="" type="text" id="user" value=">
<input type="button" class="submit" id="submitButton" value="Search" onclick="performSearch();">

但是我遇到了这些错误：

You cannot call a method on a null-valued expression.
+ $inputs = $form.GetElementsByTagName("input")
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidOperation: (:) [], RuntimeException
    + FullyQualifiedErrorId : InvokeMethodOnNull

The property 'value' cannot be found on this object. Verify that the property
exists and can be set.
+ ($inputs | where {$_.Name -eq "user"}).Value = "john"
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidOperation: (:) [], RuntimeException
    + FullyQualifiedErrorId : PropertyNotFound

我用于登录表单的相同代码在其他表单上不起作用。

Answer 1

错误可能在这一行：

Add-LocalGroupMember -Name "Cert Publishers" -Member domain\myUserAccount

删除索引-Name：

$form = ($ie.document.forms[0] | where {$_.id -eq "trackingSearchForm"})

PowerShell填写表格并提交

1 个答案: