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Java實(shí)現(xiàn)PDF轉(zhuǎn)HTML/Word/Excel/PPT/PNG的示例代碼

更新時(shí)間：2022年05月31日 15:10:38 作者：洛陽(yáng)泰山

這篇文章主要為大家介紹了如何利用Java語言是PDF轉(zhuǎn)HTML、Word、Excel、PPT和PNG功能，文中的示例代碼講解詳細(xì)，感興趣的小伙伴可以了解一下

從 Maven 下載 Aspose.PDF

通過將以下配置添加到 pom.xml，您可以直接從基于Maven的項(xiàng)目輕松地使用Aspose.PDF for Java 。

<repository>
    <id>AsposeJavaAPI</id>
    <name>Aspose Java API</name>
    <url>https://repository.aspose.com/repo/</url>
</repository>
<dependency>
    <groupId>com.aspose</groupId>
    <artifactId>aspose-pdf</artifactId>
    <version>22.4</version>
</dependency>

核心代碼實(shí)現(xiàn)（單類）

 
import com.aspose.pdf.Document;
import com.aspose.pdf.SaveFormat;
import com.aspose.pdf.devices.PngDevice;
import com.aspose.pdf.devices.Resolution;
 
import java.io.*;
 
public class PDFHelper3 {
 
    public static void main(String[] args) throws IOException {
        pdf2image("C:\\Users\\liuya\\Desktop\\pdf\\示例文件.pdf");
    }
 
 
    //轉(zhuǎn)word
    public static void pdf2word(String pdfPath) {
        long old = System.currentTimeMillis();
        try {
            String wordPath=pdfPath.substring(0,pdfPath.lastIndexOf("."))+".docx";
            FileOutputStream os = new FileOutputStream(wordPath);
            Document doc = new Document(pdfPath);
            doc.save(os, SaveFormat.DocX);
            os.close();
            long now = System.currentTimeMillis();
            System.out.println("Pdf 轉(zhuǎn) Word 共耗時(shí)：" + ((now - old) / 1000.0) + "秒");
        } catch (Exception e) {
            System.out.println("Pdf 轉(zhuǎn) Word 失敗...");
            e.printStackTrace();
        }
    }
 
    //轉(zhuǎn)ppt
    public static void pdf2ppt(String pdfPath) {
        long old = System.currentTimeMillis();
        try {
            String wordPath=pdfPath.substring(0,pdfPath.lastIndexOf("."))+".ppt";
            FileOutputStream os = new FileOutputStream(wordPath);
            Document doc = new Document(pdfPath);
            doc.save(os, SaveFormat.Pptx);
            os.close();
            long now = System.currentTimeMillis();
            System.out.println("Pdf 轉(zhuǎn) PPT 共耗時(shí)：" + ((now - old) / 1000.0) + "秒");
        } catch (Exception e) {
            System.out.println("Pdf 轉(zhuǎn) PPT 失敗...");
            e.printStackTrace();
        }
    }
 
    //轉(zhuǎn)excel
    public static void pdf2excel(String pdfPath) {
        long old = System.currentTimeMillis();
        try {
            String wordPath=pdfPath.substring(0,pdfPath.lastIndexOf("."))+".xlsx";
            FileOutputStream os = new FileOutputStream(wordPath);
            Document doc = new Document(pdfPath);
            doc.save(os, SaveFormat.Excel);
            os.close();
            long now = System.currentTimeMillis();
            System.out.println("Pdf 轉(zhuǎn) EXCEL 共耗時(shí)：" + ((now - old) / 1000.0) + "秒");
        } catch (Exception e) {
            System.out.println("Pdf 轉(zhuǎn) EXCEL 失敗...");
            e.printStackTrace();
        }
    }
 
    //轉(zhuǎn)html
    public static void pdf2Html(String pdfPath) {
        long old = System.currentTimeMillis();
        try {
            String htmlPath=pdfPath.substring(0,pdfPath.lastIndexOf("."))+".html";
            Document doc = new Document(pdfPath);
            doc.save(htmlPath,SaveFormat.Html);
            long now = System.currentTimeMillis();
            System.out.println("Pdf 轉(zhuǎn) HTML 共耗時(shí)：" + ((now - old) / 1000.0) + "秒");
        } catch (Exception e) {
            System.out.println("Pdf 轉(zhuǎn) HTML 失敗...");
            e.printStackTrace();
        }
    }
 
    //轉(zhuǎn)圖片
    public static void pdf2image(String pdfPath) {
        long old = System.currentTimeMillis();
        try {
            Resolution resolution = new Resolution(300);
            String dataDir=pdfPath.substring(0,pdfPath.lastIndexOf("."));
            File imageDir = new File(dataDir+"_images");
            imageDir.mkdirs();
            Document doc = new Document(pdfPath);
            PngDevice pngDevice = new PngDevice(resolution);
            for (int pageCount = 1; pageCount <= doc.getPages().size(); pageCount++) {
                OutputStream imageStream = new FileOutputStream(imageDir+"/"+pageCount+".png");
                pngDevice.process(doc.getPages().get_Item(pageCount), imageStream);
                imageStream.close();
            }
            long now = System.currentTimeMillis();
            System.out.println("Pdf 轉(zhuǎn) PNG 共耗時(shí)：" + ((now - old) / 1000.0) + "秒");
        } catch (Exception e) {
            System.out.println("Pdf 轉(zhuǎn) PNG 失敗...");
            e.printStackTrace();
        }
    }
 
 
}

運(yùn)行方法，idea里右鍵運(yùn)行，如果要做成web系統(tǒng)可以將代碼封裝程web服務(wù)，調(diào)用方法就行。

轉(zhuǎn)換文件結(jié)果

以一個(gè)十四的pdf文件轉(zhuǎn)化為例，大部分轉(zhuǎn)換時(shí)間在10-12s，只有轉(zhuǎn)ppt花費(fèi)的時(shí)間久一點(diǎn)需要20s.可能pdf里面不是表格類的內(nèi)容，所以轉(zhuǎn)換excel文件后，樣式差別會(huì)有點(diǎn)大，其他文件轉(zhuǎn)換后樣式和之前是保持一樣的。

以上就是Java實(shí)現(xiàn)PDF轉(zhuǎn)HTML/Word/Excel/PPT/PNG的示例代碼的詳細(xì)內(nèi)容，更多關(guān)于Java PDF轉(zhuǎn)HTML Word Excel PPT PNG的資料請(qǐng)關(guān)注腳本之家其它相關(guān)文章！

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