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poi word to html

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Release： 2023-05-15 21:58:55

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With the development of the Internet, HTML is used more and more widely, and more and more documents need to be converted to HTML format. POI Word is an open source library in Java that can read and operate Microsoft Word documents, so it is very necessary to convert POI Word documents into HTML format.

This article will introduce how to use POI Word to convert Word documents to HTML format.

1. Download the POI Word library

First you need to download the POI Word library. We can download the latest version of the POI library from the official website, or download the latest version from the Maven repository.

The address of the Maven warehouse is:

https://mvnrepository.com/artifact/org.apache.poi/poi-ooxml/5.0.0

After the download is completed After that, import it into the project.

2. Read the content of the Word document

To use POI Word to convert the Word document into HTML format, you need to first read the content of the Word document and create an HTML file.

The code is as follows:

// 读取Word文档
XWPFDocument document = new XWPFDocument(new FileInputStream("test.docx"));

// 创建HTML文件
File file = new File("test.html");
FileOutputStream fos = new FileOutputStream(file);

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3. Create the HTML file header

In the HTML file, you need to define the DOCTYPE type and some necessary metadata. The code is as follows:

// 定义HTML头部
fos.write(("<!DOCTYPE html>
" +
        "<html>
" +
        "<head>
" +
        "<meta charset="UTF-8">
" +
        "<meta name="viewport" content="width=device-width, initial-scale=1.0">
" +
        "<title>Test</title>
" +
        "</head>
" +
        "<body>
").getBytes());

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4. Convert the Word document content to HTML format

We need to traverse each paragraph and each table of the Word document and convert it to HTML format. The code is as follows:

// 遍历每个段落
for (XWPFParagraph para : document.getParagraphs()){
    // 获取段落样式
    String style = para.getStyle();

    // 获取段落内容
    String text = para.getText();

    // 将段落转换为HTML格式
    String html = "<p style="" + style + "">" + text + "</p>
";

    // 写入HTML文件
    fos.write(html.getBytes());
}

// 遍历每个表格
for (XWPFTable table : document.getTables()){
    // 获取表格边框样式
    String border = table.getCTTbl().getTblPr().getTblBorders().getTop().getVal().toString();

    // 将表格转换为HTML格式
    String html = "<table style="border-collapse: collapse; border: 1px solid " + border + "">
";

    // 遍历表格中的每一行
    for (XWPFTableRow row : table.getRows()){
        html += "<tr>
";

        // 遍历每一列
        for (XWPFTableCell cell : row.getTableCells()){
            // 获取单元格内容
            String content = cell.getText();

            // 将单元格转换为HTML格式
            html += "<td>" + content + "</td>
";
        }

        html += "</tr>
";
    }

    html += "</table>
";

    // 写入HTML文件
    fos.write(html.getBytes());
}

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5. Create the tail of the HTML file

Finally we need to create the tail of the HTML file. The code is as follows:

// 创建HTML尾部
fos.write(("</body>
</html>").getBytes());

// 关闭输出流
fos.close();

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At this point, we have successfully converted the Word document into HTML format.

The complete code is as follows:

import org.apache.poi.xwpf.usermodel.*;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;

public class WordToHtml {
    public static void main(String[] args) throws IOException {
        // 读取Word文档
        XWPFDocument document = new XWPFDocument(new FileInputStream("test.docx"));

        // 创建HTML文件
        File file = new File("test.html");
        FileOutputStream fos = new FileOutputStream(file);

        // 创建HTML头部
        fos.write(("<!DOCTYPE html>
" +
                "<html>
" +
                "<head>
" +
                "<meta charset="UTF-8">
" +
                "<meta name="viewport" content="width=device-width, initial-scale=1.0">
" +
                "<title>Test</title>
" +
                "</head>
" +
                "<body>
").getBytes());

        // 遍历每个段落
        for (XWPFParagraph para : document.getParagraphs()){
            // 获取段落样式
            String style = para.getStyle();

            // 获取段落内容
            String text = para.getText();

            // 将段落转换为HTML格式
            String html = "<p style="" + style + "">" + text + "</p>
";

            // 写入HTML文件
            fos.write(html.getBytes());
        }

        // 遍历每个表格
        for (XWPFTable table : document.getTables()){
            // 获取表格边框样式
            String border = table.getCTTbl().getTblPr().getTblBorders().getTop().getVal().toString();

            // 将表格转换为HTML格式
            String html = "<table style="border-collapse: collapse; border: 1px solid " + border + "">
";

            // 遍历表格中的每一行
            for (XWPFTableRow row : table.getRows()){
                html += "<tr>
";

                // 遍历每一列
                for (XWPFTableCell cell : row.getTableCells()){
                    // 获取单元格内容
                    String content = cell.getText();

                    // 将单元格转换为HTML格式
                    html += "<td>" + content + "</td>
";
                }

                html += "</tr>
";
            }

            html += "</table>
";

            // 写入HTML文件
            fos.write(html.getBytes());
        }

        // 创建HTML尾部
        fos.write(("</body>
</html>").getBytes());

        // 关闭输出流
        fos.close();
    }
}

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Since POI Word only supports reading documents in DOCX format, if you need to convert documents in DOC format, you need to use the HWPFOldDocument class.

The converted HTML file may need to be adjusted and formatted according to actual needs, but the method described in this article can help us quickly convert Word documents to HTML format and improve work efficiency.

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