PDF转图片

PDF转图片

需求：电子保单系统返回pdf下载文件的url。访问url，将返回的pdf文件流转换成图片保存在本地

需要引入jar包 ：pdfbox-2.0.0.jar, fontbox-2.0.0.jar

package test;import java.awt.image.BufferedImage;import java.io.File;import java.io.IOException;import java.io.InputStream;import java.net.HttpURLConnection;import java.net.URL;import javax.imageio.ImageIO;import org.apache.commons.lang.StringUtils;import org.apache.pdfbox.pdmodel.PDDocument;import org.apache.pdfbox.rendering.PDFRenderer;import bjca.org.apache.log4j.Logger;/** * pdf文件转换成png图片 * @author lijc * */public class Pdf2Pic {Logger log = Logger.getLogger(getClass());/** * 获取url返回的pdf，转换成图片保存到本地 *  * @param url  * @param plyseq  * @return */private void pdfToPng(String urlStr, String plyseq) {// File file = new File("D:\\test.pdf");// 暂时测试使用的url 后改成库中取得// String urlStr =// "http://58.251.33.182:18080/elec/netSaleQueryElecPlyServlet?c_ply_no=1M1084920171004735&idCard=411722197202132411";PDDocument pdDocument = null;if (StringUtils.isNotEmpty(urlStr)) {try {// 获取电子保单url文件输入流InputStream input = getPdfInputStream(urlStr);// 加载pdf文件pdDocument = PDDocument.load(input);PDFRenderer pdfRenderer = new PDFRenderer(pdDocument);int pageCount = pdDocument.getNumberOfPages();String pdfImgPath = "webapps" + File.separator + "pdfImg" + File.separator + plyseq + ".png";for (int i = 0; i < pageCount; i++) {BufferedImage image = pdfRenderer.renderImageWithDPI(i, 296);ImageIO.write(image, "PNG", new File(pdfImgPath));}input.close();log.info("流水号：" + plyseq + " pdf文件转换png图片成功！");} catch (IOException ex) {ex.printStackTrace();log.error("pdf文件转换png图片失败！");} finally {if (pdDocument != null) {try {pdDocument.close();} catch (IOException ex) {ex.printStackTrace();}}}} else {log.error("流水号：" + plyseq + "电子保单url地址为空！");}}/** * 获取pdf文件 inputstream流 by 电子保单url *  * @param url * @return */private static InputStream getPdfInputStream(String urlStr) {URL url = null;try {url = new URL(urlStr);HttpURLConnection httpConnect = (HttpURLConnection) url.openConnection();// 设置连接超时时间httpConnect.setConnectTimeout(30000);// 设置读取数据超时时间httpConnect.setReadTimeout(60000);httpConnect.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");httpConnect.setRequestProperty("User-Agent","Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/33.0.1750.146 Safari/537.36");return httpConnect.getInputStream();} catch (IOException ex) {ex.printStackTrace();}return null;}public static void main(String[] args) {String plyseq = "123456";String urlStr = "http://localhost:18080/elec/netSaleQueryElecPlyServlet?c_ply_no=1M1084920171004735&idCard=411722197202132411";new Pdf2Pic().pdfToPng(urlStr, plyseq);}}