java word to html

In recent years, with the continuous development of information technology, people's life and work are increasingly inseparable from computers and the Internet. In many workplaces, it is often necessary to convert Word documents to HTML format. As a programming language widely used in computer programming, Java can also be used to implement the function of converting Word to HTML. This article will introduce the method and implementation process of converting Java Word to HTML, and discuss its application in actual development.

1. Methods of converting Java Word to HTML

There are many ways to convert Java Word to HTML. Here are two more commonly used methods.

1. Use the open source tool jodconverter

jodconverter is a Java Office document conversion tool that can convert Word documents, Excel tables and PowerPoint slides into HTML, PDF, Pictures and other formats. Using jodconverter requires OpenOffice or LibreOffice to be installed locally or on the server.

The following is the code to use jodconverter to convert Word to HTML:

import java.io.*;

import org.artofsolving.jodconverter.*;

public class Word2Html {
    public static void main(String[] args) throws OfficeException {
        File inputFile = new File("input.docx");
        File outputFile = new File("output.html");

        OfficeDocumentConverter converter = new OfficeDocumentConverter(LoLocalOfficeUtils.getLocalOffice());
        converter.convert(inputFile, outputFile);

        System.out.println("File converted successfully");
    }
}

2. Using Apache POI and Jsoup

Apache POI is an operation in Java An open source project for Microsoft Office files (Word, Excel, PowerPoint, etc.), which provides a series of APIs that can easily read, write and operate Office files. Jsoup is a Java HTML parser that can convert HTML documents into DOM objects to facilitate DOM operations.

The following is the code to use Apache POI and Jsoup to convert Word to HTML:

import java.io.*;
import org.apache.poi.hwpf.*;
import org.jsoup.*;
import org.jsoup.nodes.*;

public class Word2Html {
    public static void main(String[] args) throws IOException {
        File inputFile = new File("input.doc");
        File outputFile = new File("output.html");

        HWPFDocument document = new HWPFDocument(new FileInputStream(inputFile));
        WordToHtmlConverter converter = new WordToHtmlConverter(DocumentBuilderFactory.newInstance().newDocumentBuilder().newDocument());
        converter.processDocument(document);
        Document htmlDocument = converter.getDocument();
        StringWriter writer = new StringWriter();
        TransformerFactory.newInstance().newTransformer().transform(new DOMSource(htmlDocument), new StreamResult(writer));

        String html = writer.toString();
        Document doc = Jsoup.parse(html);
        doc.outputSettings().syntax(Document.OutputSettings.Syntax.xml);
        doc.select("meta").remove();
        doc.select("link").remove();
        doc.getElementsByTag("body").get(0).removeAttr("style");
        doc.getElementsByTag("body").get(0).removeAttr("lang");

        FileWriter fileWriter = new FileWriter(outputFile);
        fileWriter.write(doc.toString());
        fileWriter.close();

        System.out.println("File converted successfully");
    }
}

2. The implementation process of converting Java Word to HTML

1. Use the open source tool jodconverter

The first step to convert Word to HTML is to download and install OpenOffice or LibreOffice. This process is relatively simple. You only need to go to the official website of OpenOffice or LibreOffice to download the installation program, and then install it step by step.

Next, jodconverter and related dependency packages need to be introduced into the Java code.

<dependency>
    <groupId>org.artofsolving</groupId>
    <artifactId>jodconverter-core</artifactId>
    <version>3.0-beta-4</version>
</dependency>
<dependency>
    <groupId>org.apache.commons</groupId>
    <artifactId>commons-io</artifactId>
    <version>1.4</version>
</dependency>
<dependency>
    <groupId>com.sun.jna</groupId>
    <artifactId>jna-platform</artifactId>
    <version>5.7.0</version>
</dependency>

Then, implement the logic of converting Word to HTML in Java code. First, you need to define the input file and output file to be converted, and then use the OfficeDocumentConverter class to convert the input file. Finally, output the conversion result.

2. Using Apache POI and Jsoup

The first step to convert Word to HTML is to introduce the related dependency packages of Apache POI and Jsoup.

<dependency>
    <groupId>org.apache.poi</groupId>
    <artifactId>poi</artifactId>
    <version>4.1.2</version>
</dependency>
<dependency>
    <groupId>org.jsoup</groupId>
    <artifactId>jsoup</artifactId>
    <version>1.14.1</version>
</dependency>

Then, implement the logic of converting Word to HTML in Java code. First, you need to define the input file and output file to be converted, then use the HWPFDocument class to read the input file, and use the WordToHtmlConverter class to convert Word to HTML. Next, use Jsoup to parse the converted HTML string into a DOM object, and perform some processing, such as removing redundant meta and link tags, deleting the style and lang attributes of the body tag, etc. Finally, the processed HTML string is written to the output file.

3. Application of Java Word to HTML

Java Word to HTML has a wide range of applications. For example, it can convert Word documents into HTML format for display on Web pages, search engine optimization, etc. In addition, Java Word to HTML can also be used in conjunction with other technologies and frameworks, such as Spring, Hibernate, Struts, Velocity, Freemarker, etc., to facilitate developers to quickly build Web applications.

In addition, since Apache POI and Jsoup are open source Java libraries, the cost of converting Java Word to HTML is relatively low, and the function of converting Word to HTML can be easily implemented even when developing small or personal projects.

To sum up, Java Word to HTML is a very practical function. It can help developers quickly convert Word documents to HTML format and be used in scenarios such as web development and search engine optimization. At the same time, the cost of converting Java Word to HTML is relatively low and is suitable for project development of various sizes.

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