spring boot docx转pdf

可以使用Apache POI和iText库来实现将docx转换为pdf的功能。以下是一个基本的示例：

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;
import org.apache.poi.xwpf.converter.pdf.PdfConverter;
import org.apache.poi.xwpf.usermodel.XWPFDocument;
import com.itextpdf.text.Document;
import com.itextpdf.text.pdf.PdfWriter;

public class DocxToPdfConverter {

    public static void main(String[] args) {
        try {
            // 读取docx文件
            InputStream docxInputStream = new FileInputStream(new File("test.docx"));
            XWPFDocument document = new XWPFDocument(docxInputStream);
            
            // 将docx转换为pdf
            FileOutputStream pdfOutputStream = new FileOutputStream(new File("test.pdf"));
            PdfWriter writer = PdfWriter.getInstance(new Document(), pdfOutputStream);
            writer.setStrictImageSequence(true);
            PdfConverter.getInstance().convert(document, writer);
            
            // 关闭流
            pdfOutputStream.close();
            docxInputStream.close();
            
            System.out.println("转换成功");
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

}

需要注意的是，这段代码需要引入以下两个依赖：

<dependency>
    <groupId>org.apache.poi</groupId>
    <artifactId>poi-ooxml</artifactId>
    <version>4.1.2</version>
</dependency>
<dependency>
    <groupId>com.itextpdf</groupId>
    <artifactId>itextpdf</artifactId>
    <version>5.5.13.2</version>
</dependency>