保定的网站建设,网络规划师含金量,淘客返利网站怎么做,展示网站报价在淘宝上找了一家写代码的店铺写了一个工具类#xff0c;再参考网上的代码#xff0c;改了改 用到的类库#xff1a; !-- https://mvnrepository.com/artifact/org.apache.pdfbox/fontbox --!--word转pdf--dependencygroupIdcom.documents4…在淘宝上找了一家写代码的店铺写了一个工具类再参考网上的代码改了改 用到的类库 !-- https://mvnrepository.com/artifact/org.apache.pdfbox/fontbox --!--word转pdf--dependencygroupIdcom.documents4j/groupIdartifactIddocuments4j-local/artifactIdversion1.1.12/version/dependencydependencygroupIdcom.documents4j/groupIdartifactIddocuments4j-transformer-msoffice-word/artifactIdversion1.1.12/version/dependency!-- https://mvnrepository.com/artifact/org.apache.pdfbox/pdfbox --!-- pdf转图片和图片转pdf--dependencygroupIdorg.apache.pdfbox/groupIdartifactIdpdfbox/artifactIdversion2.0.29/version/dependency工具类代码
import com.documents4j.api.DocumentType;
import com.documents4j.job.LocalConverter;
import org.apache.pdfbox.pdmodel.PDDocument;
import org.apache.pdfbox.pdmodel.PDPage;
import org.apache.pdfbox.pdmodel.PDPageContentStream;
import org.apache.pdfbox.pdmodel.common.PDRectangle;
import org.apache.pdfbox.pdmodel.graphics.image.PDImageXObject;
import org.apache.pdfbox.rendering.PDFRenderer;import javax.imageio.ImageIO;
import javax.imageio.ImageReader;
import javax.imageio.stream.ImageInputStream;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;public class FileConvertor {/*** 根据word每页生成图片再根据得到的图片合并生成PDF*/public static void wordToImagePDF(String wordPath,String imageDirectory, String targetPDF) throws IOException {//生成临时pdf文件File tempFile File.createTempFile(temp, .pdf);String temporaryPDF tempFile.getAbsolutePath();//将word转换为pdf并写入临时pdfwordToPDF(wordPath, temporaryPDF);//将临时pdf转换为图片ListString images pdfToImages(temporaryPDF,imageDirectory,300,png);//将转换出来的图片合并为pdftry (PDDocument pdDocument new PDDocument()) {for (String imagePath : images) {imageToPDF(imagePath, pdDocument);}pdDocument.save(targetPDF);}//删除临时pdfFiles.delete(Paths.get(temporaryPDF));}/*** Word文档转换为PDF文档* param wordPath Word文档路径* param pdfPath 生成的PDF路径*/public static void wordToPDF(String wordPath, String pdfPath) throws IOException {File inputWord new File(wordPath);File outputFile new File(pdfPath);InputStream docxInputStream Files.newInputStream(inputWord.toPath());OutputStream outputStream Files.newOutputStream(outputFile.toPath());LocalConverter.builder().build().convert(docxInputStream).as(DocumentType.DOCX).to(outputStream).as(DocumentType.PDF).execute();outputStream.close();docxInputStream.close();}/*** PDF文件转图片word一页对应一个图像* 图片将保存文件夹下根据页数命名* param pdfPath PDF文件路径* param imageDirectory 生成的图片保存的文件夹* param dpi 生成图片dpi* param formatName 生成图片的格式*/public static ListString pdfToImages(String pdfPath,String imageDirectory,float dpi, String formatName) throws IOException {File file new File(pdfPath);ArrayListString list new ArrayList();try (PDDocument doc PDDocument.load(file)) {PDFRenderer renderer new PDFRenderer(doc);int pageCount doc.getNumberOfPages();for (int i 0; i pageCount; i) {BufferedImage image renderer.renderImageWithDPI(i, dpi);int pageIndex i 1;String imagePath imageDirectory File.separator pageIndex .formatName;ImageIO.write(image, formatName, new File(imagePath));list.add(imagePath);}}return list;}/*** 图片转PDF*/public static void imageToPDF(String imagePath, PDDocument document) throws IOException {//获取图片长宽File file new File(imagePath);String fileSuffix imagePath.substring(imagePath.lastIndexOf(.) 1);IteratorImageReader readers ImageIO.getImageReadersByFormatName(fileSuffix);ImageReader reader readers.next();ImageInputStream input ImageIO.createImageInputStream(Files.newInputStream(file.toPath()));reader.setInput(input, true);int width reader.getWidth(0);int height reader.getHeight(0);//根据图片大小动态生成pdf页面PDPage pdPage new PDPage(new PDRectangle(width, height));document.addPage(pdPage);PDImageXObject pdImageXObject PDImageXObject.createFromFile(imagePath, document);PDPageContentStream contentStream new PDPageContentStream(document, pdPage);//写入图片contentStream.drawImage(pdImageXObject, 0, 0);contentStream.close();input.close();}
}
