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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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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.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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}
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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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}
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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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}
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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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doc = Loader.loadPDF(pdfFile, filePassword);
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doc.setResourceCache(new NotResourceCache());
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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 = 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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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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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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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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} finally {
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if (pdfReader != null) { //关闭
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pdfReader.close();
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}
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throw new Exception(e);
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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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Callable <List<String>> call = () -> {
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try {
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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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image.flush();
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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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throw new Exception(e);
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} finally {
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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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//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