问题：
当DOM中只有一个默认值时，如何从下拉菜单中获取值的数量？
白嘉志
好的，直截了当，但有一个障碍。我正在尝试从下拉菜单中获取值的数量。下拉菜单总是有一个在DOM中反映的默认值。正如您在html中看到的，只有一个。首先，我应该使用什么xpath driver.findElement（by.xpath（“//div[@class='select-value']”），但这不起作用吗？请帮助我编写代码，从下拉列表中获取值。谢谢哦，并且需要澄清的是，默认值是Fleet1015075755737
Select-value
下面是DOM中的默认值：
<div class="Select-value"><span class="Select-value-label" role="option" aria-selected="true" id="react-select-4--value-item">Fleet1015075755737</span></div>
下面是完整的DOM，您可以看到或搜索，每个DOM的下拉列表中只有一个值：
href="/AppDist/admin~forgottenPassword~organisationSettings~reporting.15a8d19
de
22dbc226491.css"><script charset="utf-8"
src="/AppDist/ch.admin~forgottenPassword~organisationSettings~reporting.b6fd0
b3
6cbaeebb99372.js"></script><link rel="stylesheet" type="text/css"
href="/AppDist/admin~organisationSettings~reporting.dc3718bb2d54323645e4.css"
<script charset="utf-8"
src="/AppDist/ch.admin~organisationSettings~reporting.7258270708935c516c1c.js">
</script><link rel="stylesheet" type="text/css"
href="/AppDist/admin.03f8b4765436ef6bd5e9.css"><script charset="utf-8"
src="/AppDist/ch.admin.dc2e985c46d2bf065d87.js"></script><style
type="text/css"></style><style type="text/css"></style><style
type="text/css">
</style><style type="text/css"></style><style type="text/css"></style><style
type="text/css"></style><style type="text/css"></style><style
type="text/css">
</style><style type="text/css"></style><style type="text/css"></style><style
type="text/css"></style><style type="text/css"></style><style
type="text/css">
</style><style type="text/css"></style><style type="text/css"></style><style
type="text/css"></style><style type="text/css"></style><style
type="text/css">
</style><style type="text/css"></style><style type="text/css"></style><style
type="text/css"></style><style type="text/css"></style><style
type="text/css">
</style><style type="text/css"></style><style type="text/css"></style><style
type="text/css"></style><style type="text/css"></style><style
type="text/css">
</style><style type="text/css"></style><style type="text/css"></style><style
type="text/css"></style><style type="text/css"></style><style
type="text/css">
</style><style type="text/css"></style><style type="text/css"></style><style
type="text/css"></style><style type="text/css"></style><style
type="text/css">
</style><style type="text/css"></style><style type="text/css"></style><style
type="text/css"></style><style type="text/css"></style><style
type="text/css">
</style><style type="text/css"></style><style type="text/css"></style><style
type="text/css"></style><style type="text/css"></style><style
type="text/css">
</style><style type="text/css"></style><style type="text/css"></style><style
type="text/css"></style><style type="text/css"></style></head>
<symbol xmlns="http://www.w3.org/2000/svg" id="icons_geofence" viewBox="0 0
<div id="app"><div class="vt-app-container"><main id="rootContainer"><div
class="vt-modal-wrapper"></div><div class="vt-navbar"><div class="vt-
navbar__brand"><a class="vt-navbar__brand-link active" aria-current="page"
href="/"><span class="vt-navbar__impersonating">Impersonating M-Powered
Automation</span><svg class="icon icon--logo-a vt-navbar__brand-logo--a"
width="40" height="26"><use xlink:href="#icons_logo-a"></use></svg><svg
class="icon icon--logo vt-navbar__brand-logo--full" width="250" height="26">
<use xlink:href="#icons_logo"></use></svg></a></div><nav class="vt-
navbar__nav"><ul class="vt-navbar__menu"><li class="vt-navbar__menu-item">
<a
class="vt-navbar__menu-item-link" title="Tracking" href="/tracking"><svg
class="icon icon--tracking vt-navbar__menu-item-icon" width="24"
height="22">
<use xlink:href="#icons_tracking"></use></svg><span class="vt-navbar__menu-
item-label">Tracking</span></a></li><li class="vt-navbar__menu-item"><a
class="vt-navbar__menu-item-link" title="Dash" href="/dashboard"><svg
class="icon icon--dash vt-navbar__menu-item-icon" width="24" height="22">
<use
xlink:href="#icons_dash"></use></svg><span class="vt-navbar__menu-item-
label">Dash</span></a></li><li class="vt-navbar__menu-item"><a class="vt-
navbar__menu-item-link" title="Media" href="/media"><svg class="icon icon--
video vt-navbar__menu-item-icon" width="24" height="22"><use
xlink:href="#icons_video"></use></svg><span class="vt-navbar__menu-item-
label">Media</span></a></li><li class="vt-navbar__menu-item vt-navbar__menu-
item--mobile-hidden"><a class="vt-navbar__menu-item-link" title="Reporting"
href="/reporting/vehicles"><svg class="icon icon--bar-chart vt-navbar__menu-
item-icon" width="24" height="22"><use xlink:href="#icons_bar-chart"></use>
</svg><span class="vt-navbar__menu-item-label">Reporting</span></a></li><li
class="vt-navbar__menu-item vt-navbar__menu-item--has-children vt-
navbar__menu-item--mobile-hidden"><a class="vt-navbar__menu-item-link"
title="System" href="/admin/vehicles"><svg class="icon icon--system vt-
navbar__menu-item-icon" width="24" height="22"><use
xlink:href="#icons_system"></use></svg><span class="vt-navbar__menu-item-
label">System</span></a><div class="vt-navbar__child-menu"><ul class="vt-
navbar__child-menu-list"><li class="vt-navbar__child-menu-item vt-
navbar__menu-item--mobile-hidden"><a class="vt-navbar__child-menu-link"
title="Audit History" href="/admin/audit">Audit History</a></li><li
class="vt-navbar__child-menu-item vt-navbar__menu-item--mobile-hidden"><a
class="vt-navbar__child-menu-link" title="Health Check"
href="/admin/healthcheck">Health Check</a></li><li class="vt-navbar__child-
menu-item vt-navbar__menu-item--mobile-hidden"><a class="vt-navbar__child-
menu-link" title="Platform Management"
href="/admin/platform/devices">Platform Management</a></li><li class="vt-
navbar__child-menu-item vt-navbar__menu-item--mobile-hidden"><a class="vt-
navbar__child-menu-link active" title="Vehicle Management"
href="/admin/vehicles" aria-current="page">Vehicle Management</a></li><li
class="vt-navbar__child-menu-item vt-navbar__menu-item--mobile-hidden"><a
class="vt-navbar__child-menu-link" title="Fleet Management"
href="/admin/fleets">Fleet Management</a></li><li class="vt-navbar__child-
menu-item vt-navbar__menu-item--mobile-hidden"><a class="vt-navbar__child-
menu-link" title="User Management" href="/admin/users">User Management</a>
</li></ul></div></li><li class="vt-navbar__menu-item vt-navbar__menu-item--
has-children"><a class="vt-navbar__menu-item-link" title="User"
href="/admin/vehicles"><svg class="icon icon--driver vt-navbar__menu-item-
icon" width="24" height="22"><use xlink:href="#icons_driver"></use></svg>
<span class="vt-navbar__menu-item-label">User</span></a><div class="vt-
navbar__child-menu"><ul class="vt-navbar__child-menu-list"><li class="vt-
navbar__child-menu-item vt-navbar__menu-item--mobile-hidden"><a class="vt-
navbar__child-menu-link" title="Organisation"
href="/organisation">Organisation</a></li><li class="vt-navbar__child-menu-
item"><a class="vt-navbar__child-menu-link" title="Profile"
href="/profile">Profile</a></li><li class="vt-navbar__child-menu-item"><span
class="vt-navbar__child-menu-link" title="Logout" role="button"
tabindex="0">Logout</span></li><li class="vt-navbar__child-menu-item vt-
navbar__menu-item--mobile-hidden"><a class="vt-navbar__child-menu-link"
href="/admin/vehicles"><div class="vt-navbar__impersonate"><div class="vt-
form-select vt-navbar__impersonate-select"><div class="Select has-value is-
clearable is-searchable Select--single"><input name="entity" type="hidden"
value="0f9c97c6-2dc5-4aa0-8b4e-824c6419b321"><div class="Select-control">
<span class="Select-multi-value-wrapper" id="react-select-3--value"><div
class="Select-value"><span class="Select-value-label" role="option" aria-
selected="true" id="react-select-3--value-item">M-Powered Automation</span>
</div><div class="Select-input" style="display: inline-block;"><input
autocomplete="" aria-activedescendant="react-select-3--value" aria-
expanded="false" aria-haspopup="false" aria-owns="" role="combobox" value=""
style="box-sizing: content-box; width: 5px;"><div style="position: absolute;
top: 0px; left: 0px; visibility: hidden; height: 0px; overflow: scroll; white-
space: pre; font-size: 11.522px; font-family: "Open Sans", Helvetica,
Arial, sans-serif; font-weight: 400; font-style: normal; letter-spacing:
normal; text-transform: none;"></div></div></span><span aria-label="Clear
value" class="Select-clear-zone" title="Clear value"><span class="Select-
clear">?</span></span><span class="Select-arrow-zone"><span class="Select-
arrow"></span></span></div></div></div></div></a></li></ul></div></li></ul>
</nav><div class="vt-navbar__alerts"><button type="button" class="vt-btn vt-
btn--notification"><svg class="icon icon--media-requests" width="22"
height="20"><use xlink:href="#icons_media-requests"></use></svg></button>
<button type="button" class="vt-btn vt-btn--notification"><div class="vt-
navbar__alerts-count"><span>0</span></div><svg class="icon icon--events"
width="20" height="18"><use xlink:href="#icons_events"></use></svg></button>
</div></div><div class="vt-content-container"><div style="width: inherit;"><div
class="vt-transition-panel vt-transition-panel--left vt-transition-panel--
small" style="transform: none;"><div class="vt-panel vt-devices-and-drivers">
<div class="vt-panel-header"><div class="vt-panel-header__title"><h1
class="vt-panel-header__heading">Devices and Drivers</h1></div><div class="vt-
panel-header__tabs"><ul class="vt-panel-header__tabs-menu"><li class="vt-panel-
header__tabs-menu-item vt-panel-header__tabs--active"><button type="button"
class="vt-btn vt-btn--link"><svg class="icon icon--device icon--left"
width="18" height="18"><use xlink:href="#icons_device"></use></svg><span
class="vt-panel-header__tabs-menu-label">Devices</span></button></li><li
class="vt-panel-header__tabs-menu-item"><button type="button" class="vt-btn
vt-btn--link"><svg class="icon icon--driver icon--left" width="18"
height="18"><use xlink:href="#icons_driver"></use></svg><span class="vt-panel-
header__tabs-menu-label">Drivers</span></button></li></ul></div><div class="vt-
panel-header__content"><div class="vt-devices-and-drivers__actions"><div
class="vt-form-input"><label for="driver-search" class="vt-label vt-form-
input__label"><span>Filter Results</span></label><input class="vt-input vt-
form-field" autocomplete="" id="driver-search" placeholder="Filter Results..."
type="text" value=""><div class="vt-validation-container"></div></div></div>
</div></div><div class="vt-panel vt-device-list-panel"><div class="vt-devices-
list"><div style="position: relative; overflow: hidden; width: 100%; height:
100%;"><div style="position: absolute; top: 0px; left: 0px; right: 0px;
bottom: 0px; overflow: scroll; margin-right: -17px; margin-bottom: -17px;">
<div class="vt-client-paged-list"><div class="vt-client-paged-list__data-page">
<div class="vt-client-paged-list__empty">Nothing to display.</div></div></div>
</div><div style="position: absolute; height: 6px; right: 2px; bottom: 2px;
left: 2px; border-radius: 3px;"><div style="position: relative; display:
block; height: 100%; cursor: pointer; border-radius: inherit; background-
color: rgba(0, 0, 0, 0.2); width: 0px;"></div></div><div style="position:
absolute; width: 6px; right: 2px; bottom: 2px; top: 2px; border-radius: 3px;">
<div style="position: relative; display: block; width: 100%; cursor: pointer;
border-radius: inherit; background-color: rgba(0, 0, 0, 0.2); height: 0px;
transform: translateY(0px);"></div></div></div></div></div></div></div></div>
<div class="vt-page vt-page--left-panel-open vt-page--left-panel-small vt-page-
-right-panel-small"><div style="position: relative; overflow: hidden; width:
100%; height: 100%;"><div style="position: absolute; top: 0px; left: 0px;
right: 0px; bottom: 0px; overflow: scroll; margin-right: -17px; margin-bottom:
-17px;"><div class="vt-vehicle-management"><div class="vt-page-header"><div
class="vt-page-header__title"><h1 class="vt-page-header__title-
heading">Vehicle Management</h1><div class="vt-page-header__title-content">
</div></div><div class="vt-page-header__content"></div></div><div class="vt-
page__body"><div class="vt-vehicle-management__actions"><div class="vt-form-
select"><div class="Select has-value is-searchable Select--single"><div
class="Select-control"><span class="Select-multi-value-wrapper" id="react-
select-4--value"><div class="Select-value"><span class="Select-value-label"
role="option" aria-selected="true" id="react-select-4--value-
item">Fleet1015075755737</span></div><div class="Select-input" style="display:
inline-block;"><input autocomplete="" aria-activedescendant="react-select-4--
value" aria-expanded="false" aria-haspopup="false" aria-owns="" role="combobox"
value="" style="box-sizing: content-box; width: 5px;"><div style="position:
absolute; top: 0px; left: 0px; visibility: hidden; height: 0px; overflow:
scroll; white-space: pre; font-size: 11.522px; font-family: "Open
Sans", Helvetica, Arial, sans-serif; font-weight: 400; font-style:
normal; letter-spacing: normal; text-transform: none;"></div></div></span>
<span class="Select-arrow-zone"><span class="Select-arrow"></span></span>
</div></div></div><button type="button" title="Manage Tags" class="vt-btn vt-
vehicle-management__add" disabled="">Manage Tags<svg class="icon icon--tags
icon--right" width="16" height="16"><use xlink:href="#icons_tags"></use></svg>
</button><button type="button" title="Add User" class="vt-btn vt-vehicle-
management__add">Add New Vehicle<svg class="icon icon--car icon--right"
width="16" height="16"><use xlink:href="#icons_car"></use></svg></button>
</div><div class="vt-list-view-filters"><div class="vt-list-view-
filters__content"><button type="button" class="vt-btn vt-btn--link vt-list-
view-filters__toggle"><svg class="icon icon--filter icon--left" width="14"
height="14"><use xlink:href="#icons_filter"></use></svg>Filters</button></div>
<div class="vt-list-view-filters__filters" style="height: 0px; overflow:
hidden;"><div class="vt-vehicle-management__filters"><div class="vt-form-input
vt-form-field"><label class="vt-label vt-form-input__label"><span>VRN</span>
</label><input class="vt-input" autocomplete="" name="registration"
placeholder="VRN" value=""><div class="vt-validation-container"></div></div>
<div class="vt-form-select vt-form-field"><label for="" class="vt-label vt-
form-input__label">Vehicle Type</label><div class="Select is-clearable is-
searchable Select--single"><div class="Select-control"><span class="Select-
multi-value-wrapper" id="react-select-5--value"><div class="Select-
placeholder">Select a vehicle type...</div><div class="Select-input"
style="display: inline-block;"><input autocomplete="" aria-
activedescendant="react-select-5--value" aria-expanded="false" aria-
haspopup="false" aria-owns="" role="combobox" value="" style="box-sizing:
content-box; width: 5px;"><div style="position: absolute; top: 0px; left: 0px;
visibility: hidden; height: 0px; overflow: scroll; white-space: pre; font-
size: 11.522px; font-family: "Open Sans", Helvetica, Arial, sans-
serif; font-weight: 400; font-style: normal; letter-spacing: normal; text-
transform: none;"></div></div></span><span class="Select-arrow-zone"><span
class="Select-arrow"></span></span></div></div></div><div class="vt-form-input
vt-form-field"><label class="vt-label vt-form-input__label"><span>Vehicle
Make</span></label><input class="vt-input" autocomplete="" name="make"
placeholder="Make..." value=""><div class="vt-validation-container"></div>
</div><div class="vt-form-input vt-form-field"><label class="vt-label vt-form-
input__label"><span>Vehicle Model</span></label><input class="vt-input"
autocomplete="" name="model" placeholder="Model..." value=""><div class="vt-
validation-container"></div></div><div class="vt-form-input vt-form-field">
<label class="vt-label vt-form-input__label"><span>Fuel Type</span></label>
<input class="vt-input" autocomplete="" name="fuelType" placeholder="Fuel
type..." value=""><div class="vt-validation-container"></div></div><div
class="vt-form-input vt-form-field"><label class="vt-label vt-form-
input__label"><span>Engine Size</span></label><input class="vt-input"
autocomplete="" name="engineSize" placeholder="Engine Size..." value=""><div
class="vt-validation-container"></div></div><div class="vt-form-input vt-form-
field"><label class="vt-label vt-form-input__label"><span>Device Id</span>
</label><input class="vt-input" autocomplete="" name="deviceId"
placeholder="Device Id..." value=""><div class="vt-validation-container">
</div></div><div class="vt-vehicle-management__filters-submit"><button
type="button" class="vt-btn vt-btn--block">Search</button></div></div></div>
</div><div class="vt-with-checkboxes"><div class="vt-paged-list"><div
class="vt-paged-list__header"><div role="presentation" class="vt-list-view-
cell vt-list-view-cell__header vt-list-view-cell__checkbox"><div><span
class="vt-with-checkboxes__title">Select</span><div class="vt-checkbox vt-
with-checkboxes__checkbox"><input class="vt-checkbox__input" type="checkbox">
<div class="" style="display: inline;"><svg class="vt-checkbox__svg"
xmlns="http://www.w3.org/2000/svg" viewBox="0 0 18 18"><rect class="vt-
checkbox__box" x="1" y="1" width="16" height="16" rx="2"></rect><path
class="vt-checkbox__tick" x="0" y="-2" d="M13.279,8.27,8.123,13.382a.433.433,0,0,1-.612,0l-2.979-3a.433.433,0,0,1,0-.612L5.559,8.751a.433.433,0,0,1,.612,0l1.658,1.671,3.824-3.791a.433.433,0,0,1,.612,0l1.016,1.024a.433.433,0,0,1,0,.612Z" style="display: none;"></path><path class="vt-checkbox__question" d="M6,11a1,1,0,1,1,1-1A1,1,0,0,1,6,11Zm.833-3.54v.045a.5.5,0,0,1-.5.495h-.51a.5.5,0,0,1-.495-.495V7a.753.753,0,0,1,.417-.672C6.707,5.85,7.333,5.5,7.333,5a1.224,1.224,0,0,0-1.25-1.25,1.252,1.252,0,0,0-1.194.879A.508.508,0,0,1,4.411,5H3.884A.5.5,0,0,1,3.4,4.389,2.754,2.754,0,0,1,6.
083,2.25,2.724,2.724,0,0,1,8.833,5c0,1.28-1.023,1.952-2,2.46Z"
transform="translate(3 2.5)" style="display: none;"></path><path class="vt-
checkbox__error"
d="M14.985,16.178a1.68,1.68,0,1,0,1.68,1.68A1.68,1.68,0,0,0,14.985,16.178Zm-
1.6-
6.04.271,4.968a.438.438,0,0,0,.438.414h1.773a.438.438,0,0,0,.438-.414l.271-
4.968a.438.438,0,0,0-.438-.462H13.827A.438.438,0,0,0,13.389,10.138Z"
transform="translate(-6 -6.25)" style="display: none;"></path></svg></div>
</div>
</div></div><div role="presentation" class="vt-list-view-cell vt-list-view-
cell__header"><div>VRN</div></div><div role="presentation" class="vt-list-view-
cell vt-list-view-cell__header"><div>Make</div></div><div role="presentation"
class="vt-list-view-cell vt-list-view-cell__header"><div>Model</div></div><div
role="presentation" class="vt-list-view-cell vt-list-view-cell__header">
<div>Driver Name</div></div><div role="presentation" class="vt-list-view-cell
vt-list-view-cell__header vt-vehicle-list-view__actions"><div>Action</div>
</div>
</div><div class="vt-paged-
list__content"><div><div style="position: relative; overflow: hidden; width:
100%; height: auto; min-height: 0px; max-height: 500px;"><div
style="position:
relative; overflow: scroll; margin-right: -17px; margin-bottom: -17px; min-
height: 17px; max-height: 517px;"><div class="vt-paged-list__empty"><div
class="vt-empty-state"><svg class="icon icon--question vt-empty-state__icon"
width="100" height="100"><use xlink:href="#icons_question"></use></svg><span
class="vt-empty-state__title">No Data Found.</span><p class="vt-empty-
state__message"></p></div></div></div><div style="position: absolute; height:
6px; right: 2px; bottom: 2px; left: 2px; border-radius: 3px;"><div
style="position: relative; display: block; height: 100%; cursor: pointer;
border-radius: inherit; background-color: rgba(0, 0, 0, 0.2); width: 0px;
transform: translateX(0px);"></div></div><div style="position: absolute;
width: 6px; right: 2px; bottom: 2px; top: 2px; border-radius: 3px;"><div
style="position: relative; display: block; width: 100%; cursor: pointer;
border-radius: inherit; background-color: rgba(0, 0, 0, 0.2); height: 0px;">
</div></div></div><div class="shadow-scrollbars__top" style="opacity: 0;">
</div><div class="shadow-scrollbars__bottom" style="opacity: 0;"></div></div>
</div><div class="vt-paged-list__page-controls"><button type="button"
class="vt-btn vt-btn--passive" disabled=""><svg class="icon icon--arrow-left
icon--left" width="16" height="16"><use xlink:href="#icons_arrow-left">
</use>
</svg>Previous</button><button type="button" class="vt-btn vt-btn--passive"
disabled="">Next<svg class="icon icon--arrow-right icon--right" width="16"
height="16"><use xlink:href="#icons_arrow-right"></use></svg></button></div>
</div></div></div></div></div><div style="position: absolute; height: 6px;
right: 2px; bottom: 2px; left: 2px; border-radius: 3px;"><div
style="position:
relative; display: block; height: 100%; cursor: pointer; border-radius:
inherit; background-color: rgba(0, 0, 0, 0.2); width: 0px; transform:
translateX(0px);"></div></div><div style="position: absolute; width: 6px;
right: 2px; bottom: 2px;
top: 2px; border-radius: 3px;"><div style="position: relative; display:
block;
width: 100%; cursor: pointer; border-radius: inherit; background-color:
rgba(0,
0, 0, 0.2); height: 0px; transform: translateY(0px);"></div></div></div>
</div>
</div></main><div></div></div></div>
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共有1个答案
茅曾琪
获取所有元素：
List<WebElement> elements = driver.findElements(By.className("Select-value-label"))
您还可以使用role=“option”属性:driver.findElements(by.cssselector（“role='option'”））
进一步，您可以获得大小，迭代槽列表或其他您想要做的事情。
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