在java中如何将excel转为pdf

在Java中可以使用Apache POI和iText库来实现将Excel文件转换为PDF文件。以下是一个使用这两个库的示例代码：

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

import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.ss.usermodel.Workbook;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;

import com.itextpdf.text.Document;
import com.itextpdf.text.pdf.PdfWriter;
import com.itextpdf.tool.xml.XMLWorkerHelper;

public class ExcelToPdfConverter {
    public static void main(String[] args) throws IOException {
        String excelFilePath = "path/to/excel/file.xlsx";
        String pdfFilePath = "path/to/pdf/file.pdf";
        
        // Open the Excel file
        Workbook workbook = null;
        if (excelFilePath.endsWith(".xlsx")) {
            workbook = new XSSFWorkbook(new FileInputStream(excelFilePath));
        } else if (excelFilePath.endsWith(".xls")) {
            workbook = new HSSFWorkbook(new FileInputStream(excelFilePath));
        } else {
            throw new IllegalArgumentException("The specified file is not an Excel file");
        }
        
        // Create the PDF document
        Document document = new Document();
        PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream(pdfFilePath));
        document.open();
        
        // Convert the Excel file to HTML and add it to the PDF document
        XMLWorkerHelper worker = XMLWorkerHelper.getInstance();
        worker.parseXHtml(writer, document, new FileInputStream(excelFilePath));
        
        // Close the document and Excel file
        document.close();
        workbook.close();
        
        System.out.println("Excel file converted to PDF successfully");
    }
}

此代码将读取Excel文件，将其转换为HTML，然后将HTML添加到PDF文档中。最后，它将关闭文档和Excel文件。您需要在代码中指定Excel文件和PDF文件的路径。