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html to word java

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Release： 2023-05-21 12:18:08

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With the development of Internet technology, more and more applications have been developed, among which HTML and Word are two applications we often use. HTML is a markup language used to create web pages and other web documents. Word is a text editing program used to create and edit documents. There are many situations where HTML to Word needs to be converted, such as during website maintenance where you need to create a Word document from an HTML document for easy offline viewing, or to convert an online report into a document that can be uploaded. In this article, I will introduce how to convert HTML to Word document using Java code.

Import the required libraries
First, we need to import the required libraries. Since we will be using Java code, we will need embedded Java libraries and use the Apache POI library to process Word documents. In order to use this library, you need to add the following dependencies to your project.

<dependency>
    <groupId>org.apache.poi</groupId>
    <artifactId>poi</artifactId>
    <version>3.17</version>
</dependency>
<dependency>
    <groupId>org.apache.poi</groupId>
    <artifactId>poi-ooxml</artifactId>
    <version>3.17</version>
</dependency>
<dependency>
    <groupId>org.jsoup</groupId>
    <artifactId>jsoup</artifactId>
    <version>1.10.1</version>
</dependency>

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Prepare HTML files
Before converting HTML files, we need to prepare An HTML file. This can be a document you download from a website or a file you create yourself. To simplify the tutorial, we will create an HTML file that will be used as an example later. The file can be created through Notepad or other text editor.

<meta charset="UTF-8">
<title>HTML to Word Conversion</title>

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<h1>This is a sample HTML file</h1>
<p>Here is some text that we will convert to Word format.</p>
<ul>
    <li>List item 1</li>
    <li>List item 2</li>
    <li>List item 3</li>
</ul>
<br />
<ol>
    <li>Numered item 1</li>
    <li>Numered item 2</li>
    <li>Numered item 3</li>
</ol>

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Read HTML file and convert it to Word document
In this step, we will read HTML file and convert it to Word document. To do this, we need to define a method called convertHtmlToWord to perform this operation. This method uses the JSoup library to read the content of the HTML file and converts it to Word document format using the Apache POI library. Please write the following code in a Java class.

import java.io.*;
import org.apache.poi.xwpf.usermodel.*;
import org.jsoup.*;
import org.jsoup. nodes.*;
import org.jsoup.select.*;

public class HtmlToWordConverter {

public static void main(String[] args) {
    String inputFilePath = "D:\sample.html";
    String outputFilePath = "D:\sample.docx";
    convertHtmlToWord(inputFilePath, outputFilePath);
}

public static void convertHtmlToWord(String inputFilePath, String outputFilePath) {
    try {
        String html = readFile(inputFilePath);
        Document document = Jsoup.parse(html);
        XWPFDocument doc = new XWPFDocument();

        Elements elements = document.body().children();
        for (Element element : elements) {
            if (element.tagName().equals("h1")) {
                XWPFParagraph paragraph = doc.createParagraph();
                XWPFRun run = paragraph.createRun();
                run.setText(element.text());
                run.setBold(true);
            } else if (element.tagName().equals("p")) {
                XWPFParagraph paragraph = doc.createParagraph();
                XWPFRun run = paragraph.createRun();
                run.setText(element.text());
            } else if (element.tagName().equals("ul")) {
                XWPFParagraph paragraph = doc.createParagraph();
                XWPFRun run = paragraph.createRun();

                Elements listItems = element.children();
                int i = 1;
                for (Element listItem : listItems) {
                    run.setText(i + ". " + listItem.text() + "

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");

                    i++;
                }
            } else if (element.tagName().equals("ol")) {
                XWPFParagraph paragraph = doc.createParagraph();
                XWPFRun run = paragraph.createRun();

                Elements listItems = element.children();
                int i = 1;
                for (Element listItem : listItems) {
                    run.setText(listItem.text() + "

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");

                    i++;
                }
            }
        }

        FileOutputStream out = new FileOutputStream(outputFilePath);
        doc.write(out);
        out.close();
    } catch (IOException ex) {
        System.out.println(ex.getMessage());
    }
}

public static String readFile(String filePath) {
    try {
        BufferedReader reader = new BufferedReader(new FileReader(filePath));
        StringBuilder stringBuilder = new StringBuilder();
        String line;
        while ((line = reader.readLine()) != null) {
            stringBuilder.append(line);
        }
        return stringBuilder.toString();
    } catch (IOException ex) {
        System.out.println(ex.getMessage());
        return null;
    }
}

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}

Run the Java code and view the output
Now, we can run the Java code and view the output. To run this code, you need to enter the following command on the command line.

java -cp ".;path-to-all-dependency-jars*" HtmlToWordConverter

Note that you need to replace path-to-all-dependency-jars for your download The path to all Jars. In Windows operating systems, use semicolons to separate Jars paths.

After running the code, a Word document named sample.docx will be created in the specified output path. Open the Word document and check the content. You will see something similar to the content of the HTML file. If you add an image to an HTML file, it will be displayed accordingly in the Word document.

Conclusion:
In this article, we introduced how to convert HTML files to Word documents using Java code. We used the Apache POI and JSoup libraries to read the HTML files and convert them into Word document format. In simple HTML files, this method is very efficient and can be used directly. However, in more complex HTML files, you may need to make more detailed adjustments depending on the target format you want to convert it to.

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