代码
@ApiOperation(value="doc/pdf转图片")
@PostMapping("/docAndPdfToPhoto")
public CommonResult docAndPdfToPhoto(@RequestBody Request<PdfAndType> request) throws IOException {
return cerCertifficateService.docAndPdfToPhoto(request);
}
/**
* doc/pdf转图片方法
* @author tujr
* @createTime 2020/9/10 0010 16:17
**/
CommonResult docAndPdfToPhoto(Request<PdfAndType> request) throws IOException;
@Override
public CommonResult docAndPdfToPhoto(Request<PdfAndType> request) throws IOException {
if (request==null){
return CommonResult.validateFailed();
}
PdfAndType pdfAndType = JSON.parseObject(JSON.toJSONString(request.getData()), PdfAndType.class);
if (pdfAndType==null||StringUtil.isBlank(pdfAndType.getUrl())||pdfAndType.getType()==null){
return CommonResult.validateFailed();
}
//默认文件夹
String tempDir = System.getProperty("java.io.tmpdir");
String pdfPath =tempDir + "contract" + File.separator + "tempFile.pdf";
String photoPath =tempDir + "photo" + File.separator;
File file3 =new File(photoPath);
//如果文件夹不存在则创建
if (!file3 .exists() && !file3 .isDirectory()) {
file3 .mkdir();
}
if (pdfAndType.getType()==1) {
//word文件
//将文件转为pdf并存起来
DocToPdfUtil.doc2pdf(pdfAndType.getUrl(), pdfPath);
}
if (pdfAndType.getType()==2){
//将文件下载到本地
DocToPdfUtil.downloadFile(pdfAndType.getUrl(),pdfPath);
}
//pdf转图片
List<PhotoNamePath> photos = DocToPdfUtil.pdfToImage(pdfPath, photoPath);
//上传
for (PhotoNamePath photo:photos){
//将文件转为MultipartFile
File file = new File(photo.getFilePath());
FileInputStream fileInputStream = new FileInputStream(file);
MultipartFile multipartFile = new MockMultipartFile(file.getName(), file.getName(),
ContentType.APPLICATION_OCTET_STREAM.toString(), fileInputStream);
CommonResult commonResult = storageObjService.storageObjV1(multipartFile, 1);
UploadDto uploadDto = JSON.parseObject(JSON.toJSONString(commonResult.getData()), UploadDto.class);
if (StringUtil.isBlank(uploadDto.getRealPath())){
return CommonResult.failed("文件转换失败");
}
photo.setFilePath(uploadDto.getRealPath());
//转换成功后删除临时文件夹里面的文件
file.delete();
}
File file2 = new File(pdfPath);
file2.delete();
System.out.println(tempDir);
return CommonResult.success(photos);
}
/**
* doc转pdf
* @author
* @date 2018/8/31 17:29
*/
public class DocToPdfUtil {
/**
* 获取配置文件信息
*
* @return boolean
*/
public static boolean getLicense() {
try {
InputStream is = FileUtils.class.getClassLoader().getResourceAsStream("License.xml"); // license.xml应放在..\WebRoot\WEB-INF\classes路径下
License license = new License();
license.setLicense(is);
return true;
} catch (Exception e) {
e.printStackTrace();
}
return false;
}
/**
* 转换文件流
*
* 本地文件地址
*/
public static String doc2pdf(String inPath, String outPath) {
if (getLicense()) {
try {
long old = System.currentTimeMillis();
File file = new File(outPath);
if (!file.getParentFile().exists()) {
file.getParentFile().mkdirs();
}
FileOutputStream os = new FileOutputStream(file);
Document doc = new Document(inPath); //Address是将要被转化的word文档
doc.save(os, SaveFormat.PDF);//支持DOC, DOCX, OOXML, RTF HTML, OpenDocument, PDF, EPUB, XPS, SWF 相互转换
long now = System.currentTimeMillis();
System.out.println("pdf转换成功，共耗时：" + ((now - old) / 1000.0) + "秒"); // 转化用时
return outPath;
} catch (Exception e) {
e.printStackTrace();
}
} else {
System.out.println("转化失败");
return null;
}
return null;
}
public static void main(String[] args) {
// String outPath = File.separator+"contract"+File.separator+"tempFile.pdf";
// doc2pdf("http://intern-java-test.oss-cn-shenzhen.aliyuncs.com/20200630/image_path/image/15934922857374813.doc", outPath);
// pdf2Image("D:\\temp\\2.pdf","D:\\temp",2);
// List<PhotoNamePath> photoNamePaths = pdfToImage("D:\\temp\\2.pdf", "D:\\temp\\");
// System.out.println(photoNamePaths);
String s = downloadFile("http://intern-java-test.oss-cn-shenzhen.aliyuncs.com/20200910/video_path/video/1599732853017616.pdf", "D:\\temp\\temp.pdf");
System.out.println(s);
}
/**
* @Description: PDF转图片
* @param:
* @return:
* @auther:
* @date: 2019/8/20 14:23
*/
public static List<PhotoNamePath> pdfToImage(String pdfPath, String outPath) {
List<PhotoNamePath> list = new ArrayList<>();
File file = null;
PDDocument pdDocument = null;
try {
int dpi = 296;
file = new File(pdfPath);
pdDocument = PDDocument.load(file);
PDFRenderer renderer = new PDFRenderer(pdDocument);
int pageCount = pdDocument.getNumberOfPages();
/* dpi越大转换后越清晰，相对转换速度越慢 */
for (int i = 0; i < pageCount; i++) {
PhotoNamePath photo = new PhotoNamePath();
String fileName =i+".png";
String filePath = outPath + fileName;
File dstFile = new File(filePath);
BufferedImage image = renderer.renderImageWithDPI(i, dpi);
ImageIO.write(image, "png", dstFile);
photo.setFileName(fileName);
photo.setFilePath(filePath);
list.add(photo);
}
}catch (Exception e){
e.printStackTrace();
}finally {
try {
// 这里需要关闭PDDocument，不然如果想要删除pdf文件时会提示文件正在使用，无法删除的情况
pdDocument.close();
} catch (IOException e) {
e.printStackTrace();
}
}
return list;
}
/**
* 下载文件到本地方法
* @author tujr
* @createTime 2020/9/11 0011 10:12
**/
public static String downloadFile(String remoteFilePath, String localFilePath) {
URL urlfile = null;
HttpURLConnection httpUrl = null;
BufferedInputStream bis = null;
BufferedOutputStream bos = null;
File f = new File(localFilePath);
try {
urlfile = new URL(remoteFilePath);
httpUrl = (HttpURLConnection) urlfile.openConnection();
httpUrl.connect();
bis = new BufferedInputStream(httpUrl.getInputStream());
bos = new BufferedOutputStream(new FileOutputStream(f));
int len = 2048;
byte[] b = new byte[len];
while ((len = bis.read(b)) != -1) {
bos.write(b, 0, len);
}
System.out.println("上传成功");
bos.flush();
bis.close();
httpUrl.disconnect();
} catch (Exception e) {
e.printStackTrace();
} finally {
try {
bis.close();
bos.close();
} catch (IOException e) {
e.printStackTrace();
}
}
return localFilePath;
}
}
依赖
<!--pdf转图片-->
<dependency>
<groupId>org.apache.pdfbox</groupId>
<artifactId>fontbox</artifactId>
<version>2.0.12</version>
</dependency>
<dependency>
<groupId>org.apache.pdfbox</groupId>
<artifactId>pdfbox</artifactId>
<version>2.0.1</version>
</dependency>
<!-- word转为pdf-->
<dependency>
<groupId>com.aspose</groupId>
<artifactId>aspose-words</artifactId>
<version>15.8.0</version>
<classifier>jdk16</classifier>
</dependency>
<!-- 将文件转为MultipartFile-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>5.1.7.RELEASE</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-io</artifactId>
<version>1.3.2</version>
</dependency>
我这边是加了一步生成的图片直接上传到阿里云上面的