1、转换文件（docx~pdf）

1.引入pom依赖

<dependency><groupId>com.aspose</groupId><artifactId>aspose-words</artifactId><version>20.12.0</version>
</dependency>

2.读取docx文档数据-转换

// 初始化pdf文件
String pdfPath = "testConvert.pdf";
// docx文件名
String fileName = "test.docx";// 1. 加载 Word 文件
Document doc = new Document(fileName);
doc.save(pdfPath, SaveFormat.PDF);

3.读取pdf文档数据-响应

FIle pdfFile // 转换后的文件
FileInputStream fis = new FileInputStream(pdfFile);// 设置响应头或类型
response.setCharacterEncoding("UTF-8");
response.setContentType("application/pdf; charset=UTF-8");
// 设置文件名
String disposition = "attachment; filename=" + URLEncoder.encode("fileName", "UTF-8");
response.setHeader("Content-Disposition", disposition);
response.setContentLength((int) pdfFile.length());
// try-with-resources 读取写入流
try (FileInputStream fileInputStream = new FileInputStream(pdfFile);OutputStream outputStream = response.getOutputStream()) {byte[] buffer = new byte[4096];int bytesRead;// 将文件流写入响应输出流while ((bytesRead = fileInputStream.read(buffer)) != -1) {outputStream.write(buffer, 0, bytesRead);}
}
// 可将临时生成的文件删除 .delete()

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