<dependency><groupId>com.documents4j</groupId><artifactId>documents4j-local</artifactId><version>1.0.3</version></dependency><dependency><groupId>com.documents4j</groupId><artifactId>documents4j-transformer-msoffice-word</artifactId><version>1.0.3</version></dependency><dependency><groupId>org.apache.pdfbox</groupId><artifactId>pdfbox</artifactId><version>2.0.17</version></dependency><dependency><groupId>org.apache.pdfbox</groupId><artifactId>fontbox</artifactId><version>2.0.17</version></dependency>
<dependency><groupId>com.artofsolving</groupId><artifactId>jodconverter</artifactId><version>2.2.2</version>
</dependency>
<dependency><groupId>org.openoffice</groupId><artifactId>juh</artifactId><version>3.0.1</version>
</dependency>
<dependency><groupId>org.openoffice</groupId><artifactId>ridl</artifactId><version>3.0.1</version>
</dependency>
<dependency><groupId>org.openoffice</groupId><artifactId>unoil</artifactId><version>3.0.1</version>
</dependency>

package com.insigma.facade.workflow.util;import com.artofsolving.jodconverter.DocumentConverter;
import com.artofsolving.jodconverter.openoffice.connection.OpenOfficeConnection;
import com.artofsolving.jodconverter.openoffice.connection.SocketOpenOfficeConnection;
import com.artofsolving.jodconverter.openoffice.converter.OpenOfficeDocumentConverter;
import org.apache.pdfbox.pdmodel.PDDocument;
import org.apache.pdfbox.rendering.PDFRenderer;import javax.imageio.ImageIO;
import javax.imageio.stream.ImageOutputStream;
import java.awt.image.BufferedImage;
import java.io.*;
import java.net.ConnectException;
import java.net.URL;
import java.net.URLConnection;/*** @author maoMingHui* @Title: FileTransType* @Description:* @date 2020/3/19 9:18*/
public class FileTransType {//pdf文件转图片public static InputStream pdf2Image(File file, int dpi) throws Exception {InputStream is = null;ByteArrayOutputStream bs = new ByteArrayOutputStream();ImageOutputStream imOut;PDDocument pdDocument = PDDocument.load(file);PDFRenderer renderer = new PDFRenderer(pdDocument);BufferedImage image = renderer.renderImageWithDPI(0, dpi);imOut = ImageIO.createImageOutputStream(bs);ImageIO.write(image, "png", imOut);image.flush();is = new ByteArrayInputStream(bs.toByteArray());is.close();return is;}// word文件转pdfpublic static void word2Pdf(File sourceFile, File pdfFile) throws Exception {OpenOfficeConnection connection = new SocketOpenOfficeConnection("127.0.0.1", 8100);try {connection.connect();DocumentConverter converter = new OpenOfficeDocumentConverter(connection);converter.convert(sourceFile, pdfFile);connection.disconnect();System.out.println("---------------第二步：转换为PDF格式 ，路径：" + pdfFile.getPath());} catch (java.net.ConnectException e) {e.printStackTrace();System.out.println("-----------------OpenOffice服务未启动");try {throw e;} catch (ConnectException e1) {e1.printStackTrace();}} catch (com.artofsolving.jodconverter.openoffice.connection.OpenOfficeException e) {e.printStackTrace();System.out.println("----------------读取文件失败");throw e;} catch (Exception e) {e.printStackTrace();try {throw e;} catch (Exception e1) {e1.printStackTrace();}}}public static InputStream download(String urlString) throws Exception {// 构造URLURL url = new URL(urlString);// 打开连接URLConnection con = url.openConnection();//设置请求超时为5scon.setConnectTimeout(5 * 1000);// 输入流InputStream is = con.getInputStream();return is;}public static void inputStreamToFile(InputStream ins, File file) throws Exception {OutputStream os = new FileOutputStream(file);int bytesRead = 0;byte[] buffer = new byte[8192];while ((bytesRead = ins.read(buffer, 0, 8192)) != -1) {os.write(buffer, 0, bytesRead);}os.close();ins.close();}public static void pdf2png(File pdfFile, File pdgFile) {Integer SEPARATE_DISTANCE = 10;try {PDDocument doc = PDDocument.load(pdfFile);PDFRenderer renderer = new PDFRenderer(doc);int pageCount = doc.getNumberOfPages();BufferedImage imageNew = null;for (int i = 0; i < pageCount; i++) {BufferedImage image = renderer.renderImageWithDPI(i, 284);int width = image.getWidth();int height = image.getHeight();if (imageNew == null) {imageNew = new BufferedImage(width, (height + SEPARATE_DISTANCE) * pageCount,BufferedImage.TYPE_INT_RGB);}int[] imageRgbArray = new int[width * height];imageRgbArray = image.getRGB(0, 0, width, height, imageRgbArray, 0, width);imageNew.setRGB(0, (height + SEPARATE_DISTANCE) * i, width, height, imageRgbArray, 0, width);// SEPARATE_DISTANCE表示两张图片的间隔距离}ImageIO.write(imageNew, "PNG", pdgFile);} catch (Exception e) {e.printStackTrace();}}
}