ssm框架-spring+springmvc+mybatis+eclipse+oracle+tomcat小项目

package util; import java.io.File; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.IOException; import com.lowagie.text.Document; import com.lowagie.text.DocumentException; import com.lowagie.text.Image; import com.lowagie.text.PageSize; import com.lowagie.text.pdf.PdfWriter; /* * 图片转换成pdf * 注意：这里需要导入 com.lowagie.text-2.1.7jar包 * imgPath：图片路径，如 E:\\victoria\\001.jpg" * pdfPath：转换之后的pdf路径，如 E:\\victoria\\001.pdf */ public class UtilFiles { public boolean jpgToPdf(String imgPath,String pdfPath) throws IOException { //判断文件是否存在 if (new File(imgPath).exists()) { Document doc = new Document(PageSize.A4); try { //生成pdf PdfWriter.getInstance(doc, new FileOutputStream(pdfPath)); doc.open(); float newHeight = 0; //判断文件的宽度 float pageWidth = doc.getPageSize().getWidth(); float pageHeight = doc.getPageSize().getHeight(); //获取图片的大小 Image image = Image.getInstance(imgPath); float imageWidth = image.getPlainHeight(); float imageHeight = image.getPlainWidth(); //使图片自动适应大小 if(imageWidth > pageWidth - 72) { image.scaleAbsoluteWidth(pageWidth-72); newHeight += imageHeight*(pageWidth - 72)/imageWidth +36; image.scaleAbsoluteHeight(imageHeight*(pageWidth -72)/imageWidth); }else{ newHeight += imageHeight + 36; } //判断是否需要分页 if (pageHeight < newHeight) { doc.newPage(); newHeight = imageHeight*(pageWidth -72)/imageWidth +36; } image.setAbsolutePosition(36, pageHeight - newHeight); doc.add(image); } catch (FileNotFoundException e) { e.printStackTrace(); return false; } catch (DocumentException e) { e.printStackTrace(); return false; }finally{ doc.close(); File file = new File(imgPath); if (new File(imgPath).exists()) { //file.delete(); } } }else{ return false; } return true; } public static void main(String[] args) throws IOException { String imgth = "E:\\victoria\\001.jpg"; String pdfth = "E:\\victoria\\001.pdf"; UtilFiles u = new UtilFiles(); System.out.println("开始进入方法================》"); u.jpgToPdf(imgth, pdfth); } }