/** 具體實現 替換如下路徑 */
private static void parsePdfToHtml(final String pdfBasePath, String pdfName, String htmlBasePath, String uploadBasePath,
String uploadPath) throws Exception {
StringBuffer buffer = new StringBuffer();
FileOutputStream fos;
PDDocument document;
File pdfFile;
int size;
BufferedImage image;
FileOutputStream out;
Long randStr = 0l;
//PDF轉換成HTML保存的文件夾
String path = htmlBasePath;
File htmlsDir = new File(path);
if(!htmlsDir.exists()){
htmlsDir.mkdirs();
}
File htmlDir = new File(path+"/");
if(!htmlDir.exists()){
htmlDir.mkdirs();
}
try{
// 遍歷處理pdf附件
randStr = System.currentTimeMillis();
buffer.append("<!doctype html>\r\n");
buffer.append("<head>\r\n");
buffer.append("<meta charset=\"UTF-8\">\r\n");
buffer.append("</head>\r\n");
buffer.append("<body style=\"background-color:gray;\">\r\n");
buffer.append("<style>\r\n");
buffer.append("img {background-color:#fff; text-align:center; width:100%; max-width:100%;margin-top:6px;}\r\n");
buffer.append("</style>\r\n");
document = new PDDocument();
// pdf附件
pdfFile = new File(pdfBasePath + pdfName);
document = PDDocument.load(pdfFile, (String) null);
size = document.getNumberOfPages();
Long start = System.currentTimeMillis(), end = null;
System.out.println("===>pdf : " + pdfFile.getName() +" , size : " + size);
PDFRenderer reader = new PDFRenderer(document);
final String fileName = System.currentTimeMillis() + "";
for(int i=0 ; i < size; i++){
//image = new PDFRenderer(document).renderImageWithDPI(i,130,ImageType.RGB);
image = reader.renderImage(i, 1.5f);
// 生成圖片,保存位置
out = new FileOutputStream(path + "/"+ "image" + "_" + i + ".jpg");
// 使用png的清晰度
ImageIO.write(image, "png", out);
// 將圖片路徑追加到網頁文件裏
buffer.append("<img src=\"" + path +"/"+ "image" + "_" + i + ".jpg\"/>\r\n");
image = null; out.flush(); out.close();
}
reader = null;
document.close();
buffer.append("</body>\r\n");
buffer.append("</html>");
end = System.currentTimeMillis() - start;
System.out.println("===> Reading pdf times: " + (end/1000));
start = end = null;
// 生成網頁文件
fos = new FileOutputStream(path+ pdfName.substring(0,pdfName.lastIndexOf("."))+".html");
System.out.println(path+ pdfName.substring(0,pdfName.lastIndexOf("."))+".html");
fos.write(buffer.toString().getBytes());
fos.flush(); fos.close();
}catch(Exception e){
System.out.println("===>Reader parse pdf to jpg error : " + e.getMessage());
e.printStackTrace();
}
}
