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); } }