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@ -14,8 +14,8 @@ import com.aspose.cad.*;
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import com.aspose.cad.fileformats.cad.CadDrawTypeMode; |
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import com.aspose.cad.fileformats.tiff.enums.TiffExpectedFormat; |
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import com.aspose.cad.imageoptions.*; |
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import com.itextpdf.text.pdf.PdfReader; |
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import org.apache.commons.lang3.exception.ExceptionUtils; |
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import org.apache.pdfbox.Loader; |
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import org.apache.pdfbox.pdmodel.PDDocument; |
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import org.apache.pdfbox.rendering.ImageType; |
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import org.apache.pdfbox.rendering.PDFRenderer; |
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@ -37,7 +37,10 @@ import java.io.*;
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import java.net.URLDecoder; |
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import java.net.URLEncoder; |
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import java.nio.charset.StandardCharsets; |
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import java.util.*; |
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import java.util.ArrayList; |
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import java.util.List; |
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import java.util.Map; |
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import java.util.Objects; |
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import java.util.concurrent.*; |
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import java.util.stream.IntStream; |
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@ -236,9 +239,9 @@ public class FileHandlerService implements InitializingBean {
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boolean forceUpdatedCache = fileAttribute.forceUpdatedCache(); |
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boolean usePasswordCache = fileAttribute.getUsePasswordCache(); |
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String filePassword = fileAttribute.getFilePassword(); |
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String pdfPassword = null; |
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PDDocument doc = null; |
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PdfReader pdfReader = null; |
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PDDocument doc; |
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final String[] pdfPassword = {null}; |
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final int[] pageCount = new int[1]; |
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if (!forceUpdatedCache) { |
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List<String> cacheResult = this.loadPdf2jpgCache(pdfFilePath); |
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if (!CollectionUtils.isEmpty(cacheResult)) { |
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@ -246,64 +249,77 @@ public class FileHandlerService implements InitializingBean {
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} |
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} |
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List<String> imageUrls = new ArrayList<>(); |
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File pdfFile = new File(fileNameFilePath); |
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if (!pdfFile.exists()) { |
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return null; |
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} |
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int index = pdfFilePath.lastIndexOf("."); |
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String folder = pdfFilePath.substring(0, index); |
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File path = new File(folder); |
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if (!path.exists() && !path.mkdirs()) { |
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logger.error("创建转换文件【{}】目录失败，请检查目录权限！", folder); |
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} |
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try { |
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File pdfFile = new File(fileNameFilePath); |
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if (!pdfFile.exists()) { |
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return null; |
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} |
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doc = PDDocument.load(pdfFile, filePassword); |
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doc = Loader.loadPDF(pdfFile, filePassword); |
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doc.setResourceCache(new NotResourceCache()); |
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int pageCount = doc.getNumberOfPages(); |
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PDFRenderer pdfRenderer = new PDFRenderer(doc); |
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int index = pdfFilePath.lastIndexOf("."); |
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String folder = pdfFilePath.substring(0, index); |
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File path = new File(folder); |
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if (!path.exists() && !path.mkdirs()) { |
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logger.error("创建转换文件【{}】目录失败，请检查目录权限！", folder); |
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pageCount[0] = doc.getNumberOfPages(); |
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} catch (IOException e) { |
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Throwable[] throwableArray = ExceptionUtils.getThrowables(e); |
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for (Throwable throwable : throwableArray) { |
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if (throwable instanceof IOException || throwable instanceof EncryptedDocumentException) { |
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if (e.getMessage().toLowerCase().contains(PDF_PASSWORD_MSG)) { |
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pdfPassword[0] = PDF_PASSWORD_MSG; //查询到该文件是密码文件 输出带密码的值
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} |
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} |
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} |
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String imageFilePath; |
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for (int pageIndex = 0; pageIndex < pageCount; pageIndex++) { |
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imageFilePath = folder + File.separator + pageIndex + PDF2JPG_IMAGE_FORMAT; |
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BufferedImage image = pdfRenderer.renderImageWithDPI(pageIndex, ConfigConstants.getPdf2JpgDpi(), ImageType.RGB); |
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ImageIOUtil.writeImage(image, imageFilePath, ConfigConstants.getPdf2JpgDpi()); |
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String imageUrl = this.getPdf2jpgUrl(pdfFilePath, pageIndex); |
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imageUrls.add(imageUrl); |
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if (!PDF_PASSWORD_MSG.equals(pdfPassword[0])) { //该文件异常 错误原因非密码原因输出错误
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logger.error("Convert pdf exception, pdfFilePath：{}", pdfFilePath, e); |
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} |
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throw new Exception(e); |
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} |
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Callable <List<String>> call = () -> { |
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try { |
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if (!ObjectUtils.isEmpty(filePassword)) { //获取到密码 判断是否是加密文件
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pdfReader = new PdfReader(fileNameFilePath); //读取PDF文件 通过异常获取该文件是否有密码字符
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String imageFilePath; |
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BufferedImage image = null; |
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PDFRenderer pdfRenderer = new PDFRenderer(doc); |
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pdfRenderer.setSubsamplingAllowed(true); |
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for (int pageIndex = 0; pageIndex < pageCount[0]; pageIndex++) { |
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imageFilePath = folder + File.separator + pageIndex + PDF2JPG_IMAGE_FORMAT; |
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image = pdfRenderer.renderImageWithDPI(pageIndex, ConfigConstants.getPdf2JpgDpi(), ImageType.RGB); |
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ImageIOUtil.writeImage(image, imageFilePath, ConfigConstants.getPdf2JpgDpi()); |
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String imageUrl = this.getPdf2jpgUrl(pdfFilePath, pageIndex); |
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imageUrls.add(imageUrl); |
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} |
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} catch (Exception e) { //获取异常方法 判断是否有加密字符串
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Throwable[] throwableArray = ExceptionUtils.getThrowables(e); |
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for (Throwable throwable : throwableArray) { |
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if (throwable instanceof IOException || throwable instanceof EncryptedDocumentException) { |
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if (e.getMessage().toLowerCase().contains(PDF_PASSWORD_MSG)) { |
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pdfPassword = PDF_PASSWORD_MSG; //查询到该文件是密码文件 输出带密码的值
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} |
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} |
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} |
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if (!PDF_PASSWORD_MSG.equals(pdfPassword)) { //该文件异常 错误原因非密码原因输出错误
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logger.error("Convert pdf exception, pdfFilePath：{}", pdfFilePath, e); |
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} |
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image.flush(); |
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} catch (IOException e) { |
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throw new Exception(e); |
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} finally { |
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if (pdfReader != null) { //关闭
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pdfReader.close(); |
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} |
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} |
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if (usePasswordCache || !PDF_PASSWORD_MSG.equals(pdfPassword)) { //加密文件 判断是否启用缓存命令
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this.addPdf2jpgCache(pdfFilePath, pageCount); |
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} |
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} catch (IOException e) { |
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if (!e.getMessage().contains(PDF_PASSWORD_MSG)) { |
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logger.error("Convert pdf to jpg exception, pdfFilePath：{}", pdfFilePath, e); |
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doc.close(); |
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} |
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return imageUrls; |
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}; |
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Future<List<String>> result = pool.submit(call); |
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int pdftimeout; |
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if(pageCount[0] <=50){ |
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pdftimeout = ConfigConstants.getPdfTimeout(); |
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}else if(pageCount[0] <=200){ |
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pdftimeout = ConfigConstants.getPdfTimeout80(); |
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}else { |
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pdftimeout = ConfigConstants.getPdfTimeout200(); |
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} |
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try { |
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result.get(pdftimeout, TimeUnit.SECONDS); |
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// 如果在超时时间内，没有数据返回：则抛出TimeoutException异常
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} catch (InterruptedException | ExecutionException e) { |
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throw new Exception(e); |
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} catch (TimeoutException e) { |
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throw new Exception("overtime"); |
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} finally { |
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if (doc != null) { //关闭
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doc.close(); |
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} |
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//关闭
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doc.close(); |
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} |
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if (usePasswordCache || ObjectUtils.isEmpty(filePassword)) { //加密文件 判断是否启用缓存命令
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this.addPdf2jpgCache(pdfFilePath, pageCount[0]); |
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} |
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return imageUrls; |
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} |
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gaoxiongzaq
6 months ago