1、加载Aspose包

1、下载：
Aspose官网没有提供相应的maven地址，所有手动引入jar包：

aspose-cells-20.4 - c.jar
aspose-words-18.10-jdk16.jar

下载地址：https://download.csdn.net/download/zhuocailing3390/76147206

2、配置lib目录：
在项目的resources目录下，创建lib目录，并且将下载的两个jar包放入其中

3、引入pom：
引入自定义配置的maven坐标：

 <dependencys><dependency><groupId>com.aspose.cells</groupId><artifactId>aspose-cells</artifactId><version>20.4 - c</version><scope>system</scope><systemPath>${project.basedir}/src/main/resources/lib/aspose-cells-20.4 - c.jar</systemPath></dependency><dependency><groupId>com.aspose.words</groupId><artifactId>aspose-words</artifactId><version>words-18.10-jdk16</version><scope>system</scope><systemPath>${project.basedir}/src/main/resources/lib/aspose-words-18.10-jdk16.jar</systemPath></dependency></dependencys>

2、配置license

在resources目录下创建license.xml文件，代码如下：

<License><Data><Products><Product>Aspose.Total for Java</Product><Product>Aspose.Words for Java</Product></Products><EditionType>Enterprise</EditionType><SubscriptionExpiry>20991231</SubscriptionExpiry><LicenseExpiry>20991231</LicenseExpiry><SerialNumber>8bfe198c-7f0c-4ef8-8ff0-acc3237bf0d7</SerialNumber></Data><Signature>sNLLKGMUdF0r8O1kKilWAGdgfs2BvJb/2Xp8p5iuDVfZXmhppo+d0Ran1P9TKdjV4ABwAgKXxJ3jcQTqE/2IRfqwnPf8itN8aFZlV3TJPYeD3yWE7IT55Gz6EijUpC7aKeoohTb4w2fpox58wWoF3SNp6sK6jDfiAUGEHYJ9pjU=</Signature>
</License>

2、word转pdf

封装工具类：

import com.aspose.words.Document;
import com.aspose.words.FontSettings;
import com.aspose.words.License;
import com.aspose.words.SaveFormat;import javax.servlet.http.HttpServletResponse;
import java.io.*;/*** @Author: LiHuaZhi* @Date: 2021/7/13 14:21* @Description:**/
public class Doc2PdfUtil {/*** 加载授权配置文件** @return*/private static boolean getLicense() {boolean result = false;try (InputStream in = Doc2PdfUtil.class.getClassLoader().getResourceAsStream("license.xml")) {// License的包路径必须为com.aspose.words.LicenseLicense license = new License();license.setLicense(in);result = true;} catch (Exception e) {e.printStackTrace();}return result;}/*** doc转pdf** @param inputStream* @param fileName* @param response* @return*/public static void doc2Pdf(InputStream inputStream,String fileName, HttpServletResponse response) {System.out.println("pdf转换中...");long old = System.currentTimeMillis();try (ByteArrayOutputStream fos = new ByteArrayOutputStream()) {// 验证if (!getLicense()) {throw new RuntimeException("文件转换失败!");}// 加载字体FontSettings settings = FontSettings.getDefaultInstance();settings.setFontsFolder("C:\\Windows\\Fonts", true);LoadOptions loadOptions = new LoadOptions();loadOptions.setFontSettings(settings);// 也可以直接指定路径 document = new Document(docPath);Document document = new Document(inputStream, loadOptions);//  DocumentBuilder builder = new DocumentBuilder(document);// 设置纸张大小//  builder.getPageSetup().setPaperSize(PaperSize.A3);// 设置横向// builder.getPageSetup().setOrientation(Orientation.LANDSCAPE);document.save(fos, SaveFormat.PDF);response.setHeader("Content-Disposition", "attachment;filename=" + URLEncoder.encode(fileName + ".pdf", "UTF-8"));byte[] buffer = fos.toByteArray();InputStream arrayInputStream = new ByteArrayInputStream(buffer);byte[] buf = new byte[4096];int len = -1;while ((len = arrayInputStream.read(buf)) != -1) {response.getOutputStream().write(buf, 0, len);}long now = System.currentTimeMillis();System.out.println("pdf转换成功，共耗时：" + ((now - old) / 1000.0) + "秒");} catch (Exception e) {e.printStackTrace();throw new RuntimeException("文件转换失败!");} finally {try {if (inputStream != null) {inputStream.close();}} catch (IOException e) {e.printStackTrace();}}}
}

Controller实现：

@RestController
@RequestMapping("/test")
public class TestController {/*** 导入word文件** @param file* @return* @throws Exception*/@RequestMapping("/word")@ResponseBodypublic void uploadWord(@RequestParam("file") MultipartFile file, HttpServletResponse response) throws Exception {if (file.isEmpty()) {return;}String originalFilename = file.getOriginalFilename();String fileName = originalFilename.substring(0, originalFilename.lastIndexOf("."));Doc2PdfUtil.doc2Pdf(file.getInputStream(), fileName, response);}
}

postMan测试：
请求接口，比如：http://127.0.0.1:9090/test/word

3、excel转pdf

封装工具类：

import com.aspose.cells.*;
import com.aspose.words.Document;import javax.servlet.http.HttpServletResponse;
import java.io.*;public class Excel2PdfUtil {/*** 加载配置文件** @return*/private static boolean getLicense() {boolean result = false;try (InputStream in = Excel2PdfUtil.class.getClassLoader().getResourceAsStream("license.xml")) {// License的包路径必须为com.aspose.cells.LicenseLicense license = new License();license.setLicense(in);result = true;} catch (Exception e) {e.printStackTrace();}return result;}/*** @param inputStream* @param fileName* @param response*/public static void excel2Pdf(InputStream inputStream,String fileName, HttpServletResponse response) {System.out.println("pdf转换中...");long old = System.currentTimeMillis();try (ByteArrayOutputStream fos = new ByteArrayOutputStream()) {// 验证if (!getLicense()) {throw new RuntimeException("文件转换失败!");}// 设置字体包位置IndividualFontConfigs configs = new IndividualFontConfigs();configs.setFontFolder("C:\\Windows\\Fonts", true);LoadOptions loadOptions = new LoadOptions();loadOptions.setFontConfigs(configs);// 也可以直接指定路径 workbook = new Workbook(docPath, loadOptions);Workbook workbook = new Workbook(inputStream, loadOptions);PdfSaveOptions opts = new PdfSaveOptions();// 设置excel不换行在pdf显示// opts.setAllColumnsInOnePagePerSheet(true);// 设置一个sheet在一页pdfopts.setOnePagePerSheet(true);workbook.save(fos, opts);response.setHeader("Content-Disposition", "attachment;filename=" + URLEncoder.encode(fileName + ".pdf", "UTF-8"));byte[] buffer = fos.toByteArray();InputStream arrayInputStream = new ByteArrayInputStream(buffer);byte[] buf = new byte[4096];int len = -1;while ((len = arrayInputStream.read(buf)) != -1) {response.getOutputStream().write(buf, 0, len);}long now = System.currentTimeMillis();System.out.println("pdf转换成功，共耗时：" + ((now - old) / 1000.0) + "秒");} catch (Exception e) {e.printStackTrace();throw new RuntimeException("文件转换失败!");} finally {try {if (inputStream != null) {inputStream.close();}} catch (IOException e) {e.printStackTrace();}}}
}

Controller实现：

@RestController
@RequestMapping("/test")
public class TestController {/*** 导入excel文件** @param file* @return* @throws Exception*/@RequestMapping("/excel")@ResponseBodypublic void uploadExcel(@RequestParam("file") MultipartFile file, HttpServletResponse response) throws Exception {if (file.isEmpty()) {return;}String originalFilename = file.getOriginalFilename();String fileName = originalFilename.substring(0, originalFilename.lastIndexOf("."));Excel2PdfUtil.excel2Pdf(file.getInputStream(), fileName, response);}
}

postMan测试：
请求接口，比如：http://127.0.0.1:9090/test/excel

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Java-Aspose实现上传Excel、Word转换为PDF并进行下载

目录

1、加载Aspose包

2、配置license

2、word转pdf

3、excel转pdf

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