diff --git a/html/arabic/java/advanced-usage/_index.md b/html/arabic/java/advanced-usage/_index.md index 5fd516250..802ed9b72 100644 --- a/html/arabic/java/advanced-usage/_index.md +++ b/html/arabic/java/advanced-usage/_index.md @@ -136,6 +136,9 @@ weight: 20 ### [كيفية تشغيل JavaScript في Java – دليل كامل](./how-to-run-javascript-in-java-complete-guide/) تعلم كيفية تشغيل كود JavaScript داخل تطبيقات Java باستخدام Aspose.HTML for Java. +### [تنفيذ JavaScript في Java باستخدام Aspose.HTML](./execute-javascript-in-java-using-aspose-html/) +تعلم كيفية تشغيل كود JavaScript داخل تطبيقات Java باستخدام Aspose.HTML. + --- **آخر تحديث:** 2025-11-29 diff --git a/html/arabic/java/advanced-usage/execute-javascript-in-java-using-aspose-html/_index.md b/html/arabic/java/advanced-usage/execute-javascript-in-java-using-aspose-html/_index.md new file mode 100644 index 000000000..fb4256559 --- /dev/null +++ b/html/arabic/java/advanced-usage/execute-javascript-in-java-using-aspose-html/_index.md @@ -0,0 +1,223 @@ +--- +category: general +date: 2026-05-31 +description: تنفيذ جافا سكريبت في جافا باستخدام Aspose.HTML – تعلم كيفية تحميل مستند + HTML في جافا، تشغيل جافا سكريبت من HTML، الحصول على عنصر بواسطة المعرف واسترجاع + نص العنصر في جافا. +draft: false +keywords: +- execute javascript in java +- get element by id +- run javascript from html +- retrieve element text java +- load html document java +language: ar +og_description: تنفيذ جافاسكريبت في جافا بسرعة – تحميل HTML، تشغيل جافاسكريبت، الحصول + على العنصر بواسطة المعرف واسترجاع نص العنصر مع مثال كامل قابل للتنفيذ. +og_title: تنفيذ جافا سكريبت في جافا باستخدام Aspose.HTML +schemas: +- author: Aspose + dateModified: '2026-05-31' + description: execute javascript in java with Aspose.HTML – learn how to load html + document java, run javascript from html, get element by id and retrieve element + text java. + headline: execute javascript in java using Aspose.HTML + type: TechArticle +- description: execute javascript in java with Aspose.HTML – learn how to load html + document java, run javascript from html, get element by id and retrieve element + text java. + name: execute javascript in java using Aspose.HTML + steps: + - name: '**Parse dynamic tables** – after the script populates a table, use `document.querySelectorAll("table + tr")` to extract rows.' + text: '**Parse dynamic tables** – after the script populates a table, use `document.querySelectorAll("table + tr")` to extract rows.' + - name: '**Take screenshots** – Aspose.HTML can render the final DOM to an image, + perfect for visual regression testing.' + text: '**Take screenshots** – Aspose.HTML can render the final DOM to an image, + perfect for visual regression testing.' + - name: '**Combine with HTTP client** – fetch live pages, run their scripts, and + scrape the rendered content without a headless browser.' + text: '**Combine with HTTP client** – fetch live pages, run their scripts, and + scrape the rendered content without a headless browser.' + type: HowTo +tags: +- Java +- Aspose.HTML +- JavaScript +- DOM +- Web Automation +title: تنفيذ جافا سكريبت في جافا باستخدام Aspose.HTML +url: /ar/java/advanced-usage/execute-javascript-in-java-using-aspose-html/ +--- + +{{< blocks/products/pf/main-wrap-class >}} +{{< blocks/products/pf/main-container >}} +{{< blocks/products/pf/tutorial-page-section >}} + +# تنفيذ جافاسكريبت في جافا – دليل خطوة‑بخطوة كامل + +هل احتجت يوماً إلى **execute javascript in java** لكن لم تكن متأكدًا من كيفية تشغيل سكريبت موجود داخل سلسلة HTML؟ لست وحدك. يواجه العديد من مطوري جافا هذا التحدي عندما يحاولون أتمتة صفحات الويب، استخراج المحتوى الديناميكي، أو اختبار منطق الجانب العميل دون متصفح. + +في هذا الدرس سنقوم بتحميل مستند HTML في جافا، **run javascript from html**، الحصول على عنصر باستخدام **get element by id**، وأخيرًا **retrieve element text java** – كل ذلك ببضع أسطر من الشيفرة فقط. في النهاية ستحصل على مثال مستقل وقابل للتنفيذ يمكنك وضعه في أي مشروع Maven أو Gradle. + +--- + +## execute javascript in java – لماذا Aspose.HTML؟ + +قبل أن نغوص في التفاصيل، ملاحظة سريعة حول المكتبة التي نستخدمها. Aspose.HTML for Java هي واجهة برمجة تطبيقات Pure‑Java يمكنها تحليل، عرض، وتعديل HTML وCSS دون الحاجة إلى متصفح أصلي. محرك السكريبت المدمج يتيح لك **execute javascript in java** بأمان، مع إمكانية ضبط مهلة التنفيذ. هذا يعني أنك لن تحتاج إلى Selenium أو ChromeDriver أو أي مجموعة أدوات UI ثقيلة—فقط ملف JAR وJDK. + +> **نصيحة احترافية:** إذا كنت تستخدم Java 17 أو أحدث، تأكد من تشغيل البرنامج مع `--add-opens java.base/java.lang=ALL-UNNAMED` لتجنب تحذيرات الوصول غير القانوني عندما يقوم محرك السكريبت بتحميل الفئات الداخلية. + +--- + +## load html document java + +الخطوة الأولى هي إمداد Aspose.HTML بشفرة HTML. المكتبة تقبل سلسلة نصية خام، مسار ملف، أو تدفق. في هذا المثال سنستخدم السلسلة النصية لأنها تجعل العرض مستقلًا. + +```java +import com.aspose.html.*; +import com.aspose.html.dom.*; + +public class JsExecutionExample { + public static void main(String[] args) throws Exception { + + // Step 1: Define the HTML that contains a simple script. + String htmlContent = "" + + "
Old
" + + "" + + ""; + + // Step 2: Load the HTML into an HTMLDocument object. + HTMLDocument document = new HTMLDocument(htmlContent); +``` + +> **ما الذي يحدث؟** `HTMLDocument` يقوم بتحليل الشيفرة، بناء شجرة DOM، وتحضير كائن `Window` الذي يستضيف محرك JavaScript. في هذه المرحلة لم يتم تشغيل السكريبت بعد—Aspose.HTML يفصل بين التحميل والتنفيذ، مما يمنحك التحكم في التوقيت والمهلة. + +--- + +## run javascript from html + +الآن بعد أن المستند جاهز، نخبر المحرك بتقييم أي وسوم `" + + ""; + + // Create the HTMLDocument – this **load html document java** step builds the DOM. + HTMLDocument document = new HTMLDocument(htmlContent); + + // Execute the embedded JavaScript – the **run javascript from html** phase. + document.getWindow().getScriptEngine().execute(); + + // Locate the element – classic **get element by id** usage. + Element messageDiv = document.getElementById("msg"); + + // Output the changed text – the **retrieve element text java** part. + System.out.println("Updated text: " + messageDiv.getTextContent()); + } +} +``` + +--- + +## Edge cases & best practices + +| Situation | What to watch out for | Suggested fix | +|-----------|----------------------|---------------| +| **Multiple scripts** | Scripts run sequentially; a later script may overwrite earlier changes. | Use `document.getWindow().getScriptEngine().execute()` after each load if you need granular control. | +| **Large HTML files** | Loading a huge document can consume memory. | Stream the HTML with `HTMLDocument(InputStream)` and enable `document.setTimeout()` accordingly. | +| **External resources** (e.g., `" + + ""; + + // Step 2: Load the HTML into an HTMLDocument object. + HTMLDocument document = new HTMLDocument(htmlContent); +``` + +> **发生了什么？** `HTMLDocument` 解析标记，构建 DOM 树，并准备一个承载 JavaScript 引擎的 `Window` 对象。此时脚本 **尚未** 运行——Aspose.HTML 将加载与执行分离，让你可以控制时机和超时。 + +--- + +## 从 HTML 运行 JavaScript + +文档准备就绪后，我们让引擎评估其中的所有 `" + + ""; + + // Create the HTMLDocument – this **load html document java** step builds the DOM. + HTMLDocument document = new HTMLDocument(htmlContent); + + // Execute the embedded JavaScript – the **run javascript from html** phase. + document.getWindow().getScriptEngine().execute(); + + // Locate the element – classic **get element by id** usage. + Element messageDiv = document.getElementById("msg"); + + // Output the changed text – the **retrieve element text java** part. + System.out.println("Updated text: " + messageDiv.getTextContent()); + } +} +``` + +--- + +## 边缘情况与最佳实践 + +| 情况 | 需要注意的事项 | 建议的解决方案 | +|-----------|----------------------|---------------| +| **多个脚本** | 脚本按顺序执行；后面的脚本可能会覆盖之前的更改。 | 如果需要细粒度控制，可在每次加载后使用 `document.getWindow().getScriptEngine().execute()`。 | +| **大型 HTML 文件** | 加载巨大的文档可能会消耗大量内存。 | 使用 `HTMLDocument(InputStream)` 流式读取 HTML，并相应地设置 `document.setTimeout()`。 | +| **外部资源**（例如 `" + + ""; + + // Step 2: Load the HTML into an HTMLDocument object. + HTMLDocument document = new HTMLDocument(htmlContent); +``` + +> **Co se děje?** `HTMLDocument` parsuje značky, vytvoří DOM strom a připraví objekt `Window`, který hostí JavaScript engine. V tomto okamžiku se skript **neprovedl** – Aspose.HTML odděluje načítání od vykonání, což vám dává kontrolu nad načasováním a timeoutem. + +--- + +## run javascript from html + +Jakmile je dokument připraven, řekneme engine, aby vyhodnotil všechny `" + + ""; + + // Create the HTMLDocument – this **load html document java** step builds the DOM. + HTMLDocument document = new HTMLDocument(htmlContent); + + // Execute the embedded JavaScript – the **run javascript from html** phase. + document.getWindow().getScriptEngine().execute(); + + // Locate the element – classic **get element by id** usage. + Element messageDiv = document.getElementById("msg"); + + // Output the changed text – the **retrieve element text java** part. + System.out.println("Updated text: " + messageDiv.getTextContent()); + } +} +``` + +--- + +## Edge cases & best practices + +| Situace | Na co si dát pozor | Doporučené řešení | +|-----------|----------------------|---------------| +| **Více skriptů** | Skripty se spouštějí sekvenčně; pozdější skript může přepsat změny předchozího. | Použijte `document.getWindow().getScriptEngine().execute()` po každém načtení, pokud potřebujete jemnější kontrolu. | +| **Velké HTML soubory** | Načtení obrovského dokumentu může spotřebovat hodně paměti. | Streamujte HTML pomocí `HTMLDocument(InputStream)` a podle toho nastavte `document.setTimeout()`. | +| **Externí zdroje** (např. `" + + ""; + + // Step 2: Load the HTML into an HTMLDocument object. + HTMLDocument document = new HTMLDocument(htmlContent); +``` + +> **Wat gebeurt er?** `HTMLDocument` parseert de markup, bouwt een DOM‑boom en maakt een `Window`‑object aan dat de JavaScript‑engine host. Op dit moment is het script **nog niet** uitgevoerd—Aspose.HTML scheidt laden van uitvoeren, zodat je controle hebt over timing en timeout. + +--- + +## run javascript from html + +Nu het document klaar is, laten we de engine alle `" + + ""; + + // Create the HTMLDocument – this **load html document java** step builds the DOM. + HTMLDocument document = new HTMLDocument(htmlContent); + + // Execute the embedded JavaScript – the **run javascript from html** phase. + document.getWindow().getScriptEngine().execute(); + + // Locate the element – classic **get element by id** usage. + Element messageDiv = document.getElementById("msg"); + + // Output the changed text – the **retrieve element text java** part. + System.out.println("Updated text: " + messageDiv.getTextContent()); + } +} +``` + +--- + +## Edge cases & best practices + +| Situatie | Waar op te letten | Aanbevolen oplossing | +|----------|-------------------|----------------------| +| **Meerdere scripts** | Scripts worden sequentieel uitgevoerd; een later script kan eerdere wijzigingen overschrijven. | Gebruik `document.getWindow().getScriptEngine().execute()` na elke load als je fijnmazige controle nodig hebt. | +| **Grote HTML‑bestanden** | Het laden van een enorm document kan veel geheugen verbruiken. | Stream de HTML met `HTMLDocument(InputStream)` en stel `document.setTimeout()` passend in. | +| **Externe resources** (bijv. `" + + ""; + + // Step 2: Load the HTML into an HTMLDocument object. + HTMLDocument document = new HTMLDocument(htmlContent); +``` + +> **What’s happening?** `HTMLDocument` parses the markup, builds a DOM tree, and prepares a `Window` object that hosts the JavaScript engine. At this point the script **has not** run yet—Aspose.HTML separates loading from execution, giving you control over timing and timeout. + +--- + +## run javascript from html + +Now that the document is ready, we tell the engine to evaluate any `" + + ""; + + // Create the HTMLDocument – this **load html document java** step builds the DOM. + HTMLDocument document = new HTMLDocument(htmlContent); + + // Execute the embedded JavaScript – the **run javascript from html** phase. + document.getWindow().getScriptEngine().execute(); + + // Locate the element – classic **get element by id** usage. + Element messageDiv = document.getElementById("msg"); + + // Output the changed text – the **retrieve element text java** part. + System.out.println("Updated text: " + messageDiv.getTextContent()); + } +} +``` + +--- + +## Edge cases & best practices + +| Situation | What to watch out for | Suggested fix | +|-----------|----------------------|---------------| +| **Multiple scripts** | Scripts run sequentially; a later script may overwrite earlier changes. | Use `document.getWindow().getScriptEngine().execute()` after each load if you need granular control. | +| **Large HTML files** | Loading a huge document can consume memory. | Stream the HTML with `HTMLDocument(InputStream)` and enable `document.setTimeout()` accordingly. | +| **External resources** (e.g., `" + + ""; + + // Step 2: Load the HTML into an HTMLDocument object. + HTMLDocument document = new HTMLDocument(htmlContent); +``` + +> **Qu’est‑ce qui se passe ?** `HTMLDocument` analyse le balisage, construit un arbre DOM et prépare un objet `Window` qui héberge le moteur JavaScript. À ce stade le script **n’a pas** encore été exécuté—Aspose.HTML sépare le chargement de l’exécution, vous donnant le contrôle du timing et du délai d’attente. + +--- + +## exécuter javascript depuis html + +Maintenant que le document est prêt, nous indiquons au moteur d’évaluer toutes les balises `" + + ""; + + // Create the HTMLDocument – this **load html document java** step builds the DOM. + HTMLDocument document = new HTMLDocument(htmlContent); + + // Execute the embedded JavaScript – the **run javascript from html** phase. + document.getWindow().getScriptEngine().execute(); + + // Locate the element – classic **get element by id** usage. + Element messageDiv = document.getElementById("msg"); + + // Output the changed text – the **retrieve element text java** part. + System.out.println("Updated text: " + messageDiv.getTextContent()); + } +} +``` + +--- + +## Cas limites & bonnes pratiques + +| Situation | What to watch out for | Suggested fix | +|-----------|----------------------|---------------| +| **Scripts multiples** | Les scripts s’exécutent séquentiellement ; un script ultérieur peut écraser les modifications précédentes. | Utilisez `document.getWindow().getScriptEngine().execute()` après chaque chargement si vous avez besoin d’un contrôle granulaire. | +| **Fichiers HTML volumineux** | Le chargement d’un document énorme peut consommer de la mémoire. | Diffusez le HTML avec `HTMLDocument(InputStream)` et ajustez `document.setTimeout()` en conséquence. | +| **Ressources externes** (par ex., `" + + ""; + + // Step 2: Load the HTML into an HTMLDocument object. + HTMLDocument document = new HTMLDocument(htmlContent); +``` + +> **Was passiert?** `HTMLDocument` parsed das Markup, baut einen DOM‑Baum auf und erstellt ein `Window`‑Objekt, das die JavaScript‑Engine hostet. Zu diesem Zeitpunkt wurde das Skript **noch nicht** ausgeführt – Aspose.HTML trennt Laden von Ausführen, sodass Sie die Zeitsteuerung und das Timeout kontrollieren können. + +--- + +## run javascript from html + +Jetzt, da das Dokument bereit ist, lassen wir die Engine alle gefundenen `" + + ""; + + // Create the HTMLDocument – this **load html document java** step builds the DOM. + HTMLDocument document = new HTMLDocument(htmlContent); + + // Execute the embedded JavaScript – the **run javascript from html** phase. + document.getWindow().getScriptEngine().execute(); + + // Locate the element – classic **get element by id** usage. + Element messageDiv = document.getElementById("msg"); + + // Output the changed text – the **retrieve element text java** part. + System.out.println("Updated text: " + messageDiv.getTextContent()); + } +} +``` + +--- + +## Randfälle & bewährte Vorgehensweisen + +| Situation | Worauf Sie achten sollten | Empfohlene Lösung | +|-----------|---------------------------|-------------------| +| **Mehrere Skripte** | Skripte werden nacheinander ausgeführt; ein späteres Skript kann frühere Änderungen überschreiben. | Verwenden Sie `document.getWindow().getScriptEngine().execute()` nach jedem Laden, wenn Sie eine feinkörnige Kontrolle benötigen. | +| **Große HTML‑Dateien** | Das Laden eines riesigen Dokuments kann viel Speicher verbrauchen. | Streamen Sie das HTML mit `HTMLDocument(InputStream)` und passen Sie `document.setTimeout()` entsprechend an. | +| **Externe Ressourcen** (z. B. `" + + ""; + + // Step 2: Load the HTML into an HTMLDocument object. + HTMLDocument document = new HTMLDocument(htmlContent); +``` + +> **What’s happening?** `HTMLDocument` αναλύει το markup, δημιουργεί ένα δέντρο DOM και προετοιμάζει ένα αντικείμενο `Window` που φιλοξενεί τη μηχανή JavaScript. Σε αυτό το σημείο το script **δεν** έχει εκτελεστεί ακόμη—το Aspose.HTML διαχωρίζει τη φόρτωση από την εκτέλεση, δίνοντάς σας έλεγχο στον χρόνο και το timeout. + +--- + +## run javascript from html + +Τώρα που το έγγραφο είναι έτοιμο, λέμε στη μηχανή να αξιολογήσει τυχόν ετικέτες `" + + ""; + + // Create the HTMLDocument – this **load html document java** step builds the DOM. + HTMLDocument document = new HTMLDocument(htmlContent); + + // Execute the embedded JavaScript – the **run javascript from html** phase. + document.getWindow().getScriptEngine().execute(); + + // Locate the element – classic **get element by id** usage. + Element messageDiv = document.getElementById("msg"); + + // Output the changed text – the **retrieve element text java** part. + System.out.println("Updated text: " + messageDiv.getTextContent()); + } +} +``` + +--- + +## Edge cases & best practices + +| Κατάσταση | Τι πρέπει να προσέξετε | Προτεινόμενη διόρθωση | +|-----------|----------------------|------------------------| +| **Multiple scripts** | Τα scripts εκτελούνται διαδοχικά· ένα μεταγενέστερο script μπορεί να αντικαταστήσει αλλαγές του προηγούμενου. | Χρησιμοποιήστε `document.getWindow().getScriptEngine().execute()` μετά από κάθε φόρτωση αν χρειάζεστε λεπτομερή έλεγχο. | +| **Large HTML files** | Η φόρτωση ενός τεράστιου εγγράφου μπορεί να καταναλώσει μνήμη. | Διαβάστε το HTML με `HTMLDocument(InputStream)` και ρυθμίστε το `document.setTimeout()` ανάλογα. | +| **External resources** (π.χ., `" + + ""; + + // Step 2: Load the HTML into an HTMLDocument object. + HTMLDocument document = new HTMLDocument(htmlContent); +``` + +> **क्या हो रहा है?** `HTMLDocument` मार्कअप को पार्स करता है, एक DOM ट्री बनाता है, और एक `Window` ऑब्जेक्ट तैयार करता है जो जावास्क्रिप्ट इंजन को होस्ट करता है। इस चरण में स्क्रिप्ट **अभी तक नहीं** चली है—Aspose.HTML लोडिंग को निष्पादन से अलग करता है, जिससे आपको टाइमिंग और टाइमआउट पर नियंत्रण मिलता है। + +--- + +## run javascript from html + +अब जब डॉक्यूमेंट तैयार है, हम इंजन को सभी `" + + ""; + + // Create the HTMLDocument – this **load html document java** step builds the DOM. + HTMLDocument document = new HTMLDocument(htmlContent); + + // Execute the embedded JavaScript – the **run javascript from html** phase. + document.getWindow().getScriptEngine().execute(); + + // Locate the element – classic **get element by id** usage. + Element messageDiv = document.getElementById("msg"); + + // Output the changed text – the **retrieve element text java** part. + System.out.println("Updated text: " + messageDiv.getTextContent()); + } +} +``` + +--- + +## Edge cases & best practices + +| Situation | What to watch out for | Suggested fix | +|-----------|----------------------|---------------| +| **Multiple scripts** | स्क्रिप्ट्स क्रमशः चलती हैं; बाद वाली स्क्रिप्ट पहले वाले बदलावों को ओवरराइट कर सकती है। | यदि आपको ग्रैन्युलर कंट्रोल चाहिए तो प्रत्येक लोड के बाद `document.getWindow().getScriptEngine().execute()` उपयोग करें। | +| **Large HTML files** | बहुत बड़ा डॉक्यूमेंट लोड करने से मेमोरी की खपत बढ़ सकती है। | `HTMLDocument(InputStream)` के साथ HTML को स्ट्रीम करें और `document.setTimeout()` को उसी अनुसार सेट करें। | +| **External resources** (e.g., `" + + ""; + + // Step 2: Load the HTML into an HTMLDocument object. + HTMLDocument document = new HTMLDocument(htmlContent); +``` + +> **What’s happening?** `HTMLDocument` 解析標記，建立 DOM 樹，並準備一個承載 JavaScript 引擎的 `Window` 物件。此時腳本 **尚未** 執行——Aspose.HTML 將載入與執行分離，讓你能控制時機與逾時。 + +--- + +## 執行 HTML 中的 JavaScript + +現在文件已就緒，我們指示引擎評估所有找到的 `" + + ""; + + // Create the HTMLDocument – this **load html document java** step builds the DOM. + HTMLDocument document = new HTMLDocument(htmlContent); + + // Execute the embedded JavaScript – the **run javascript from html** phase. + document.getWindow().getScriptEngine().execute(); + + // Locate the element – classic **get element by id** usage. + Element messageDiv = document.getElementById("msg"); + + // Output the changed text – the **retrieve element text java** part. + System.out.println("Updated text: " + messageDiv.getTextContent()); + } +} +``` + +--- + +## 邊緣情況與最佳實踐 + +| 情況 | 需要注意的地方 | 建議的解決方式 | +|-----------|----------------------|---------------| +| **Multiple scripts** | 腳本依序執行；較後的腳本可能覆寫較前的變更。 | 如需更細粒度的控制，可在每次載入後使用 `document.getWindow().getScriptEngine().execute()`。 | +| **Large HTML files** | 載入大型文件可能佔用大量記憶體。 | 使用 `HTMLDocument(InputStream)` 串流載入 HTML，並相應調整 `document.setTimeout()`。 | +| **External resources** (e.g., `" + + ""; + + // Step 2: Load the HTML into an HTMLDocument object. + HTMLDocument document = new HTMLDocument(htmlContent); +``` + +> **Mi történik?** A `HTMLDocument` parse‑olja a markup‑ot, felépíti a DOM‑fát, és előkészíti a `Window` objektumot, amely a JavaScript‑motort tartalmazza. Ebben a pontban a szkript **még nem** futott le – az Aspose.HTML szétválasztja a betöltést és a végrehajtást, így te irányíthatod az időzítést és a timeout‑ot. + +--- + +## run javascript from html + +Miután a dokumentum készen áll, azt mondjuk a motornak, hogy értékelje ki a benne található `" + + ""; + + // Create the HTMLDocument – this **load html document java** step builds the DOM. + HTMLDocument document = new HTMLDocument(htmlContent); + + // Execute the embedded JavaScript – the **run javascript from html** phase. + document.getWindow().getScriptEngine().execute(); + + // Locate the element – classic **get element by id** usage. + Element messageDiv = document.getElementById("msg"); + + // Output the changed text – the **retrieve element text java** part. + System.out.println("Updated text: " + messageDiv.getTextContent()); + } +} +``` + +--- + +## Edge cases & best practices + +| Situation | What to watch out for | Suggested fix | +|-----------|----------------------|---------------| +| **Multiple scripts** | Scripts run sequentially; a later script may overwrite earlier changes. | Use `document.getWindow().getScriptEngine().execute()` after each load if you need granular control. | +| **Large HTML files** | Loading a huge document can consume memory. | Stream the HTML with `HTMLDocument(InputStream)` and enable `document.setTimeout()` accordingly. | +| **External resources** (e.g., `" + + ""; + + // Step 2: Load the HTML into an HTMLDocument object. + HTMLDocument document = new HTMLDocument(htmlContent); +``` + +> **Apa yang terjadi?** `HTMLDocument` mem‑parse markup, membangun pohon DOM, dan menyiapkan objek `Window` yang menampung mesin JavaScript. Pada titik ini skrip **belum** dijalankan—Aspose.HTML memisahkan pemuatan dari eksekusi, memberi Anda kontrol atas timing dan timeout. + +--- + +## jalankan javascript dari html + +Setelah dokumen siap, kami memberi tahu mesin untuk mengevaluasi semua tag `" + + ""; + + // Create the HTMLDocument – this **load html document java** step builds the DOM. + HTMLDocument document = new HTMLDocument(htmlContent); + + // Execute the embedded JavaScript – the **run javascript from html** phase. + document.getWindow().getScriptEngine().execute(); + + // Locate the element – classic **get element by id** usage. + Element messageDiv = document.getElementById("msg"); + + // Output the changed text – the **retrieve element text java** part. + System.out.println("Updated text: " + messageDiv.getTextContent()); + } +} +``` + +--- + +## Kasus tepi & praktik terbaik + +| Situation | What to watch out for | Suggested fix | +|-----------|----------------------|---------------| +| **Multiple scripts** | Scripts run sequentially; a later script may overwrite earlier changes. | Use `document.getWindow().getScriptEngine().execute()` after each load if you need granular control. | +| **Large HTML files** | Loading a huge document can consume memory. | Stream the HTML with `HTMLDocument(InputStream)` and enable `document.setTimeout()` accordingly. | +| **External resources** (e.g., `" + + ""; + + // Step 2: Load the HTML into an HTMLDocument object. + HTMLDocument document = new HTMLDocument(htmlContent); +``` + +> **Cosa sta succedendo?** `HTMLDocument` analizza il markup, costruisce un albero DOM e prepara un oggetto `Window` che ospita il motore JavaScript. A questo punto lo script **non è** ancora stato eseguito—Aspose.HTML separa il caricamento dall'esecuzione, offrendoti il controllo su tempi e timeout. + +## run javascript from html + +Ora che il documento è pronto, indichiamo al motore di valutare tutti i tag `" + + ""; + + // Create the HTMLDocument – this **load html document java** step builds the DOM. + HTMLDocument document = new HTMLDocument(htmlContent); + + // Execute the embedded JavaScript – the **run javascript from html** phase. + document.getWindow().getScriptEngine().execute(); + + // Locate the element – classic **get element by id** usage. + Element messageDiv = document.getElementById("msg"); + + // Output the changed text – the **retrieve element text java** part. + System.out.println("Updated text: " + messageDiv.getTextContent()); + } +} +``` + +## Casi limite e migliori pratiche + +| Situazione | Cosa tenere d'occhio | Correzione suggerita | +|------------|----------------------|----------------------| +| **Multiple scripts** | Gli script vengono eseguiti sequenzialmente; uno script successivo può sovrascrivere le modifiche precedenti. | Usa `document.getWindow().getScriptEngine().execute()` dopo ogni caricamento se hai bisogno di un controllo granulare. | +| **Large HTML files** | Caricare un documento enorme può consumare molta memoria. | Esegui lo streaming dell'HTML con `HTMLDocument(InputStream)` e imposta `document.setTimeout()` di conseguenza. | +| **External resources** (e.g., `" + + ""; + + // Step 2: Load the HTML into an HTMLDocument object. + HTMLDocument document = new HTMLDocument(htmlContent); +``` + +> **What’s happening?** `HTMLDocument` がマークアップを解析し、DOM ツリーを構築し、JavaScript エンジンをホストする `Window` オブジェクトを準備します。この時点ではスクリプトは **has not** 実行されていません — Aspose.HTML はロードと実行を分離しており、タイミングとタイムアウトを制御できます。 + +--- + +## run javascript from html + +ドキュメントの準備ができたら、エンジンに `" + + ""; + + // Create the HTMLDocument – this **load html document java** step builds the DOM. + HTMLDocument document = new HTMLDocument(htmlContent); + + // Execute the embedded JavaScript – the **run javascript from html** phase. + document.getWindow().getScriptEngine().execute(); + + // Locate the element – classic **get element by id** usage. + Element messageDiv = document.getElementById("msg"); + + // Output the changed text – the **retrieve element text java** part. + System.out.println("Updated text: " + messageDiv.getTextContent()); + } +} +``` + +--- + +## Edge cases & best practices + +| 状況 | 注意点 | 推奨される対策 | +|-----------|----------------------|---------------| +| **複数のスクリプト** | スクリプトは順番に実行され、後のスクリプトが前の変更を上書きする可能性があります。 | 各ロード後に `document.getWindow().getScriptEngine().execute()` を使用して、細かい制御を行います。 | +| **大きなHTMLファイル** | 巨大なドキュメントの読み込みはメモリを消費する可能性があります。 | `HTMLDocument(InputStream)` でHTMLをストリームし、`document.setTimeout()` を適切に設定してください。 | +| **外部リソース** (例: `" + + ""; + + // Step 2: Load the HTML into an HTMLDocument object. + HTMLDocument document = new HTMLDocument(htmlContent); +``` + +> **무슨 일이 일어나나요?** `HTMLDocument`가 마크업을 파싱하고 DOM 트리를 구성한 뒤, JavaScript 엔진을 호스팅할 `Window` 객체를 준비합니다. 이 시점에서는 스크립트가 **아직 실행되지 않았습니다**—Aspose.HTML는 로딩과 실행을 분리하여 타이밍과 타임아웃을 직접 제어할 수 있게 합니다. + +--- + +## HTML에서 JavaScript 실행 + +문서가 준비되었으니 이제 엔진에게 `" + + ""; + + // Create the HTMLDocument – this **load html document java** step builds the DOM. + HTMLDocument document = new HTMLDocument(htmlContent); + + // Execute the embedded JavaScript – the **run javascript from html** phase. + document.getWindow().getScriptEngine().execute(); + + // Locate the element – classic **get element by id** usage. + Element messageDiv = document.getElementById("msg"); + + // Output the changed text – the **retrieve element text java** part. + System.out.println("Updated text: " + messageDiv.getTextContent()); + } +} +``` + +--- + +## Edge cases & best practices + +| 상황 | 주의할 점 | 권장 해결책 | +|-----------|----------------------|---------------| +| **여러 개의 스크립트** | 스크립트가 순차적으로 실행되며, 뒤에 있는 스크립트가 앞의 변경을 덮어쓸 수 있습니다. | 필요에 따라 각 로드 후 `document.getWindow().getScriptEngine().execute()` 를 호출해 세밀하게 제어하세요. | +| **대용량 HTML 파일** | 큰 문서를 로드하면 메모리 사용량이 급증할 수 있습니다. | `HTMLDocument(InputStream)` 으로 스트리밍 로드하고, `document.setTimeout()` 을 적절히 설정하세요. | +| **외부 리소스** (예: `" + + ""; + + // Step 2: Load the HTML into an HTMLDocument object. + HTMLDocument document = new HTMLDocument(htmlContent); +``` + +> **What’s happening?** `HTMLDocument` parsuje znacznik, buduje drzewo DOM i przygotowuje obiekt `Window`, który hostuje silnik JavaScript. W tym momencie skrypt **nie został** jeszcze uruchomiony — Aspose.HTML oddziela ładowanie od wykonania, dając Ci kontrolę nad momentem i limitem czasu. + +--- + +## run javascript from html + +Teraz, gdy dokument jest gotowy, instruujemy silnik, aby ocenił wszystkie znalezione znaczniki `" + + ""; + + // Create the HTMLDocument – this **load html document java** step builds the DOM. + HTMLDocument document = new HTMLDocument(htmlContent); + + // Execute the embedded JavaScript – the **run javascript from html** phase. + document.getWindow().getScriptEngine().execute(); + + // Locate the element – classic **get element by id** usage. + Element messageDiv = document.getElementById("msg"); + + // Output the changed text – the **retrieve element text java** part. + System.out.println("Updated text: " + messageDiv.getTextContent()); + } +} +``` + +--- + +## Edge cases & best practices + +| Situation | What to watch out for | Suggested fix | +|-----------|----------------------|---------------| +| **Multiple scripts** | Skrypty uruchamiane są kolejno; późniejszy skrypt może nadpisać zmiany wprowadzone wcześniej. | Użyj `document.getWindow().getScriptEngine().execute()` po każdym załadowaniu, jeśli potrzebna jest drobna kontrola. | +| **Large HTML files** | Ładowanie ogromnego dokumentu może zużywać dużo pamięci. | Strumieniuj HTML przy pomocy `HTMLDocument(InputStream)` i odpowiednio dostosuj `document.setTimeout()`. | +| **External resources** (e.g., `" + + ""; + + // Step 2: Load the HTML into an HTMLDocument object. + HTMLDocument document = new HTMLDocument(htmlContent); +``` + +> **O que está acontecendo?** `HTMLDocument` analisa o markup, constrói uma árvore DOM e prepara um objeto `Window` que hospeda o motor JavaScript. Neste ponto o script **não** foi executado ainda — Aspose.HTML separa o carregamento da execução, dando a você controle sobre o tempo e o timeout. + +--- + +## run javascript from html + +Agora que o documento está pronto, instruímos o motor a avaliar quaisquer tags `" + + ""; + + // Create the HTMLDocument – this **load html document java** step builds the DOM. + HTMLDocument document = new HTMLDocument(htmlContent); + + // Execute the embedded JavaScript – the **run javascript from html** phase. + document.getWindow().getScriptEngine().execute(); + + // Locate the element – classic **get element by id** usage. + Element messageDiv = document.getElementById("msg"); + + // Output the changed text – the **retrieve element text java** part. + System.out.println("Updated text: " + messageDiv.getTextContent()); + } +} +``` + +--- + +## Edge cases & best practices + +| Situation | What to watch out for | Suggested fix | +|-----------|----------------------|---------------| +| **Multiple scripts** | Scripts run sequentially; a later script may overwrite earlier changes. | Use `document.getWindow().getScriptEngine().execute()` after each load if you need granular control. | +| **Large HTML files** | Loading a huge document can consume memory. | Stream the HTML with `HTMLDocument(InputStream)` and enable `document.setTimeout()` accordingly. | +| **External resources** (e.g., `" + + ""; + + // Step 2: Load the HTML into an HTMLDocument object. + HTMLDocument document = new HTMLDocument(htmlContent); +``` + +> **Что происходит?** `HTMLDocument` разбирает разметку, строит дерево DOM и подготавливает объект `Window`, в котором размещён JavaScript‑движок. На данном этапе скрипт **ещё не** выполнен — Aspose.HTML разделяет загрузку и выполнение, предоставляя вам контроль над временем и тайм‑аутом. + +## запуск javascript из html + +Теперь, когда документ готов, мы просим движок выполнить любые найденные теги `" + + ""; + + // Create the HTMLDocument – this **load html document java** step builds the DOM. + HTMLDocument document = new HTMLDocument(htmlContent); + + // Execute the embedded JavaScript – the **run javascript from html** phase. + document.getWindow().getScriptEngine().execute(); + + // Locate the element – classic **get element by id** usage. + Element messageDiv = document.getElementById("msg"); + + // Output the changed text – the **retrieve element text java** part. + System.out.println("Updated text: " + messageDiv.getTextContent()); + } +} +``` + +## Особые случаи и лучшие практики + +| Situation | На что обратить внимание | Предлагаемое решение | +|-----------|--------------------------|----------------------| +| **Multiple scripts** | Скрипты выполняются последовательно; более поздний скрипт может перезаписать изменения, сделанные ранее. | Используйте `document.getWindow().getScriptEngine().execute()` после каждой загрузки, если требуется более тонкий контроль. | +| **Large HTML files** | Загрузка огромного документа может потреблять много памяти. | Потоково передавайте HTML через `HTMLDocument(InputStream)` и соответственно задавайте `document.setTimeout()`. | +| **External resources** (e.g., `" + + ""; + + // Step 2: Load the HTML into an HTMLDocument object. + HTMLDocument document = new HTMLDocument(htmlContent); +``` + +> **¿Qué está pasando?** `HTMLDocument` analiza el marcado, construye un árbol DOM y prepara un objeto `Window` que aloja el motor JavaScript. En este punto el script **no ha** ejecutado todavía—Aspose.HTML separa la carga de la ejecución, dándote control sobre el tiempo y el timeout. + +## ejecutar javascript desde html + +Ahora que el documento está listo, indicamos al motor que evalúe cualquier etiqueta `" + + ""; + + // Create the HTMLDocument – this **load html document java** step builds the DOM. + HTMLDocument document = new HTMLDocument(htmlContent); + + // Execute the embedded JavaScript – the **run javascript from html** phase. + document.getWindow().getScriptEngine().execute(); + + // Locate the element – classic **get element by id** usage. + Element messageDiv = document.getElementById("msg"); + + // Output the changed text – the **retrieve element text java** part. + System.out.println("Updated text: " + messageDiv.getTextContent()); + } +} +``` + +## Casos límite y mejores prácticas + +| Situation | What to watch out for | Suggested fix | +|-----------|----------------------|---------------| +| **Múltiples scripts** | Los scripts se ejecutan secuencialmente; un script posterior puede sobrescribir cambios anteriores. | Usa `document.getWindow().getScriptEngine().execute()` después de cada carga si necesitas control granular. | +| **Archivos HTML grandes** | Cargar un documento enorme puede consumir memoria. | Transmite el HTML con `HTMLDocument(InputStream)` y habilita `document.setTimeout()` según corresponda. | +| **Recursos externos** (p. ej., `" + + ""; + + // Step 2: Load the HTML into an HTMLDocument object. + HTMLDocument document = new HTMLDocument(htmlContent); +``` + +> **What’s happening?** `HTMLDocument` parsar markupen, bygger ett DOM‑träd och förbereder ett `Window`‑objekt som hostar JavaScript‑motorn. Vid detta tillfälle har skriptet **inte** körts ännu – Aspose.HTML separerar laddning från exekvering, vilket ger dig kontroll över timing och timeout. + +--- + +## run javascript from html + +Nu när dokumentet är klart instruerar vi motorn att utvärdera alla `" + + ""; + + // Create the HTMLDocument – this **load html document java** step builds the DOM. + HTMLDocument document = new HTMLDocument(htmlContent); + + // Execute the embedded JavaScript – the **run javascript from html** phase. + document.getWindow().getScriptEngine().execute(); + + // Locate the element – classic **get element by id** usage. + Element messageDiv = document.getElementById("msg"); + + // Output the changed text – the **retrieve element text java** part. + System.out.println("Updated text: " + messageDiv.getTextContent()); + } +} +``` + +--- + +## Edge cases & best practices + +| Situation | What to watch out for | Suggested fix | +|-----------|----------------------|---------------| +| **Multiple scripts** | Scripts run sequentially; a later script may overwrite earlier changes. | Use `document.getWindow().getScriptEngine().execute()` after each load if you need granular control. | +| **Large HTML files** | Loading a huge document can consume memory. | Stream the HTML with `HTMLDocument(InputStream)` and enable `document.setTimeout()` accordingly. | +| **External resources** (e.g., `" + + ""; + + // Step 2: Load the HTML into an HTMLDocument object. + HTMLDocument document = new HTMLDocument(htmlContent); +``` + +> **What’s happening?** `HTMLDocument` parses the markup, builds a DOM tree, and prepares a `Window` object that hosts the JavaScript engine. At this point the script **has not** run yet—Aspose.HTML separates loading from execution, giving you control over timing and timeout. + +--- + +## รัน JavaScript จาก HTML + +เมื่อเอกสารพร้อม, เราบอกเอนจินให้ประเมิน `" + + ""; + + // Create the HTMLDocument – this **load html document java** step builds the DOM. + HTMLDocument document = new HTMLDocument(htmlContent); + + // Execute the embedded JavaScript – the **run javascript from html** phase. + document.getWindow().getScriptEngine().execute(); + + // Locate the element – classic **get element by id** usage. + Element messageDiv = document.getElementById("msg"); + + // Output the changed text – the **retrieve element text java** part. + System.out.println("Updated text: " + messageDiv.getTextContent()); + } +} +``` + +--- + +## กรณีขอบและแนวปฏิบัติที่ดีที่สุด + +| Situation | What to watch out for | Suggested fix | +|-----------|----------------------|---------------| +| **Multiple scripts** | Scripts run sequentially; a later script may overwrite earlier changes. | Use `document.getWindow().getScriptEngine().execute()` after each load if you need granular control. | +| **Large HTML files** | Loading a huge document can consume memory. | Stream the HTML with `HTMLDocument(InputStream)` and enable `document.setTimeout()` accordingly. | +| **External resources** (e.g., `" + + ""; + + // Step 2: Load the HTML into an HTMLDocument object. + HTMLDocument document = new HTMLDocument(htmlContent); +``` + +> **Ne oluyor?** `HTMLDocument` işaretlemeyi ayrıştırır, bir DOM ağacı oluşturur ve JavaScript motorunu barındıran bir `Window` nesnesi hazırlar. Bu noktada betik **henüz** çalışmamıştır—Aspose.HTML, yükleme ile yürütmeyi ayırır, böylece zamanlama ve zaman aşımı üzerinde kontrol sahibi olursunuz. + +--- + +## run javascript from html + +Belge hazır olduğunda, motorun bulduğu tüm `" + + ""; + + // Create the HTMLDocument – this **load html document java** step builds the DOM. + HTMLDocument document = new HTMLDocument(htmlContent); + + // Execute the embedded JavaScript – the **run javascript from html** phase. + document.getWindow().getScriptEngine().execute(); + + // Locate the element – classic **get element by id** usage. + Element messageDiv = document.getElementById("msg"); + + // Output the changed text – the **retrieve element text java** part. + System.out.println("Updated text: " + messageDiv.getTextContent()); + } +} +``` + +--- + +## Edge cases & best practices + +| Durum | Dikkat edilmesi gerekenler | Önerilen çözüm | +|-----------|----------------------|---------------| +| **Birden fazla betik** | Betikler sırasıyla çalışır; sonraki bir betik önceki değişiklikleri üzerine yazabilir. | Her yüklemeden sonra `document.getWindow().getScriptEngine().execute()` kullanarak ince ayar yapın. | +| **Büyük HTML dosyaları** | Devasa bir belgeyi yüklemek bellek tüketimini artırabilir. | `HTMLDocument(InputStream)` ile HTML’i akış olarak okuyun ve `document.setTimeout()` değerini buna göre ayarlayın. | +| **Harici kaynaklar** (ör. `" + + ""; + + // Step 2: Load the HTML into an HTMLDocument object. + HTMLDocument document = new HTMLDocument(htmlContent); +``` + +> **Đang xảy ra gì?** `HTMLDocument` phân tích markup, xây dựng cây DOM, và chuẩn bị một đối tượng `Window` chứa engine JavaScript. Tại thời điểm này script **chưa** được chạy—Aspose.HTML tách việc tải và thực thi, cho phép bạn kiểm soát thời gian và timeout. + +--- + +## chạy javascript từ html + +Bây giờ tài liệu đã sẵn sàng, chúng ta yêu cầu engine đánh giá mọi thẻ `" + + ""; + + // Create the HTMLDocument – this **load html document java** step builds the DOM. + HTMLDocument document = new HTMLDocument(htmlContent); + + // Execute the embedded JavaScript – the **run javascript from html** phase. + document.getWindow().getScriptEngine().execute(); + + // Locate the element – classic **get element by id** usage. + Element messageDiv = document.getElementById("msg"); + + // Output the changed text – the **retrieve element text java** part. + System.out.println("Updated text: " + messageDiv.getTextContent()); + } +} +``` + +--- + +## Các trường hợp đặc biệt & thực tiễn tốt nhất + +| Tình huống | Điều cần lưu ý | Giải pháp đề xuất | +|-----------|----------------|-------------------| +| **Nhiều script** | Các script chạy tuần tự; script sau có thể ghi đè thay đổi của script trước. | Sử dụng `document.getWindow().getScriptEngine().execute()` sau mỗi lần tải nếu cần kiểm soát chi tiết. | +| **File HTML lớn** | Tải một tài liệu khổng lồ có thể tiêu tốn bộ nhớ. | Dòng stream HTML bằng `HTMLDocument(InputStream)` và điều chỉnh `document.setTimeout()` cho phù hợp. | +| **Tài nguyên bên ngoài** (ví dụ: `