如何使用Selenium和Java限制串列中的webelements數量

我有來自以下 dom 的串列數量，共有 10 個元素。我想將串列中的前 5 個元素存盤在一個變數中。我該怎么做？

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                <h4 class="ui-lib-link__heading ui-lib-bold">Request for Collection and Transfer of Green Waste from Residential Areas</h4>
                <div class="ui-lib-category-list-item__description">Through this service, you can request the collection and transfer of green wastes from residential areas.</div>
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                    <div class="ui-lib-tag ui-lib-tag_size-default ui-lib-tag_grey ui-lib-tag_hoverable ui-lib-tag_clickable" tabindex="0" role="button"><span class="ui-lib-tag__text">Abu Dhabi Waste Management Center</span></div>
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                <h4 class="ui-lib-link__heading ui-lib-bold">Request for Collection and Transfer of Large-Scale Wastes from Residential Areas</h4>
                <div class="ui-lib-category-list-item__description">Through this service, you can request the collection and transfer of wastes in large amounts from residential areas.</div>
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                    <div class="ui-lib-tag ui-lib-tag_size-default ui-lib-tag_grey ui-lib-tag_hoverable ui-lib-tag_clickable" tabindex="0" role="button"><span class="ui-lib-tag__text">Abu Dhabi Waste Management Center</span></div>
                    <div class="ui-lib-tag ui-lib-tag_size-default ui-lib-tag_blue ui-lib-tag_hoverable ui-lib-tag_clickable" tabindex="0" role="button"><span class="ui-lib-tag__text">Expat</span></div>
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                <h4 class="ui-lib-link__heading ui-lib-bold">Request for Licencing a Private Notary Office</h4>
                <div class="ui-lib-category-list-item__description">Apply for licencing a private notary office</div>
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                    <div class="ui-lib-tag ui-lib-tag_size-default ui-lib-tag_grey ui-lib-tag_hoverable ui-lib-tag_clickable" tabindex="0" role="button"><span class="ui-lib-tag__text">Abu Dhabi Judicial Department</span></div>
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                <h4 class="ui-lib-link__heading ui-lib-bold">Request for Transferring the Licence of a Private Notary from One Office to Another</h4>
                <div class="ui-lib-category-list-item__description">Apply for transferring the licence of a private notary from one office to another</div>
                <div class="ui-lib-category-list-item__tags">
                    <div class="ui-lib-tag ui-lib-tag_size-default ui-lib-tag_grey ui-lib-tag_hoverable ui-lib-tag_clickable" tabindex="0" role="button"><span class="ui-lib-tag__text">Abu Dhabi Judicial Department</span></div>
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                <h4 class="ui-lib-link__heading ui-lib-bold">Request for Cancelling the Registration of a Private Notary Office</h4>
                <div class="ui-lib-category-list-item__description">Apply for cancelling the registration of a private notary office</div>
                <div class="ui-lib-category-list-item__tags">
                    <div class="ui-lib-tag ui-lib-tag_size-default ui-lib-tag_grey ui-lib-tag_hoverable ui-lib-tag_clickable" tabindex="0" role="button"><span class="ui-lib-tag__text">Abu Dhabi Judicial Department</span></div>
                    <div class="ui-lib-tag ui-lib-tag_size-default ui-lib-tag_blue ui-lib-tag_hoverable ui-lib-tag_clickable" tabindex="0" role="button"><span class="ui-lib-tag__text">Business</span></div>
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                <h4 class="ui-lib-link__heading ui-lib-bold">Request to Open a New Branch for a Private Notary Office</h4>
                <div class="ui-lib-category-list-item__description">Apply for opening a new branch of a private notary office</div>
                <div class="ui-lib-category-list-item__tags">
                    <div class="ui-lib-tag ui-lib-tag_size-default ui-lib-tag_grey ui-lib-tag_hoverable ui-lib-tag_clickable" tabindex="0" role="button"><span class="ui-lib-tag__text">Abu Dhabi Judicial Department</span></div>
                    <div class="ui-lib-tag ui-lib-tag_size-default ui-lib-tag_blue ui-lib-tag_hoverable ui-lib-tag_clickable" tabindex="0" role="button"><span class="ui-lib-tag__text">Business</span></div>
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                    <div class="ui-lib-category-list-item-type"><span class="ui-lib-category-list-item-type__label">Service</span></div>
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                <h4 class="ui-lib-link__heading ui-lib-bold">Request for Renewal of a Private Notary Office Registration Card</h4>
                <div class="ui-lib-category-list-item__description">Apply for renewal of a private notary office registration card</div>
                <div class="ui-lib-category-list-item__tags">
                    <div class="ui-lib-tag ui-lib-tag_size-default ui-lib-tag_grey ui-lib-tag_hoverable ui-lib-tag_clickable" tabindex="0" role="button"><span class="ui-lib-tag__text">Abu Dhabi Judicial Department</span></div>
                    <div class="ui-lib-tag ui-lib-tag_size-default ui-lib-tag_blue ui-lib-tag_hoverable ui-lib-tag_clickable" tabindex="0" role="button"><span class="ui-lib-tag__text">Business</span></div>
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                <h4 class="ui-lib-link__heading ui-lib-bold">Request Nuisance Pest Control</h4>
                <div class="ui-lib-category-list-item__description">Through this service, you can request nuisance pest control for ants, termites, lizards, German cockroaches, ticks, fleas and bed bugs.</div>
                <div class="ui-lib-category-list-item__tags">
                    <div class="ui-lib-tag ui-lib-tag_size-default ui-lib-tag_grey ui-lib-tag_hoverable ui-lib-tag_clickable" tabindex="0" role="button"><span class="ui-lib-tag__text">Abu Dhabi Waste Management Center</span></div>
                    <div class="ui-lib-tag ui-lib-tag_size-default ui-lib-tag_blue ui-lib-tag_hoverable ui-lib-tag_clickable" tabindex="0" role="button"><span class="ui-lib-tag__text">Emirati</span></div>
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        <div class="ui-lib-category-list-item">
            <div class="ui-lib-category-list-item__content">
                <div class="ui-lib-category-list-item__content-header">
                    <div class="ui-lib-category-list-item-type"><span class="ui-lib-category-list-item-type__label">Service</span></div>
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                <h4 class="ui-lib-link__heading ui-lib-bold">Request Stray Animal Impounding</h4>
                <div class="ui-lib-category-list-item__description">Through this service, you can request and schedule impounding stray animals, such as camels, cows, cats, dogs, etc.</div>
                <div class="ui-lib-category-list-item__tags">
                    <div class="ui-lib-tag ui-lib-tag_size-default ui-lib-tag_grey ui-lib-tag_hoverable ui-lib-tag_clickable" tabindex="0" role="button"><span class="ui-lib-tag__text">Abu Dhabi Waste Management Center</span></div>
                    <div class="ui-lib-tag ui-lib-tag_size-default ui-lib-tag_blue ui-lib-tag_hoverable ui-lib-tag_clickable" tabindex="0" role="button"><span class="ui-lib-tag__text">Expat</span></div>
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                    <div class="ui-lib-tag ui-lib-tag_size-default ui-lib-tag_blue ui-lib-tag_hoverable ui-lib-tag_clickable" tabindex="0" role="button"><span class="ui-lib-tag__text">Emirati</span></div>
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        <div class="ui-lib-category-list-item">
            <div class="ui-lib-category-list-item__content">
                <div class="ui-lib-category-list-item__content-header">
                    <div class="ui-lib-category-list-item-type"><span class="ui-lib-category-list-item-type__label">Service</span></div>
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                <h4 class="ui-lib-link__heading ui-lib-bold">Request Vector Pest Control Service</h4>
                <div class="ui-lib-category-list-item__description">Through this service, you can request vector pest control of mosquitos, flies, rodents and American cockroaches.</div>
                <div class="ui-lib-category-list-item__tags">
                    <div class="ui-lib-tag ui-lib-tag_size-default ui-lib-tag_grey ui-lib-tag_hoverable ui-lib-tag_clickable" tabindex="0" role="button"><span class="ui-lib-tag__text">Abu Dhabi Waste Management Center</span></div>
                    <div class="ui-lib-tag ui-lib-tag_size-default ui-lib-tag_blue ui-lib-tag_hoverable ui-lib-tag_clickable" tabindex="0" role="button"><span class="ui-lib-tag__text">Expat</span></div>
                    <div class="ui-lib-tag ui-lib-tag_size-default ui-lib-tag_blue ui-lib-tag_hoverable ui-lib-tag_clickable" tabindex="0" role="button"><span class="ui-lib-tag__text">Visitor</span></div>
                    <div class="ui-lib-tag ui-lib-tag_size-default ui-lib-tag_blue ui-lib-tag_hoverable ui-lib-tag_clickable" tabindex="0" role="button"><span class="ui-lib-tag__text">Emirati</span></div>
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            </div>
        </div>
    </div>
</div>
<div class="ui-lib-margin-t_ ui-lib-margin-b_xl search-pagination">
    <div class="ui-lib-pagination ui-lib-pagination_align-center">
        <div class="ui-lib-pagination__item ui-lib-pagination__item_page ui-lib-pagination__item_current" tabindex="0" role="button" aria-label="">1</div>
        <div class="ui-lib-pagination__item ui-lib-pagination__item_page" tabindex="0" role="button" aria-label="">2</div>
        <div class="ui-lib-pagination__item ui-lib-pagination__item_page" tabindex="0" role="button" aria-label="">3</div>
        <div class="ui-lib-pagination__item ui-lib-pagination__item_page" tabindex="0" role="button" aria-label="">4</div>
        <div class="ui-lib-pagination__item ui-lib-pagination__item_page" tabindex="0" role="button" aria-label="">5</div>
        <div class="ui-lib-pagination__item ui-lib-pagination__item_dots" tabindex="0" role="button" aria-label="Next 3 Pages">&nbsp;</div>
        <div class="ui-lib-pagination__item ui-lib-pagination__item_page" tabindex="0" role="button" aria-label="">32</div>
        <div class="ui-lib-pagination__item ui-lib-pagination__item_nav" tabindex="0" role="button" aria-label="Next">&nbsp;</div>
    </div>
</div>
</div>

代碼試驗：

List<WebElement> TotalSearchResults = driver.findElements(By.xpath("//div[@class='ui-lib-sidebar-grid__content']//div[contains(@class,'ui-lib-category-list ui-lib-category-list-dummy')]/div"));
int TotalSearchCountSize = TotalSearchResults.size();

我用上面的代碼得到了大小，現在我想保存前 5 個結果，我應該在這里使用哪個函式？

uj5u.com熱心網友回復：

要將串列中的元素數量限制為5，您可以使用 Java8 stream()，limit()并且可以使用以下定位器策略：

List<WebElement> TotalSearchResults = driver.findElements(By.xpath("//div[@class='ui-lib-sidebar-grid__content']//div[contains(@class,'ui-lib-category-list ui-lib-category-list-dummy')]/div")).stream().limit(5).collect(Collectors.toList());

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