2.需要使用到的软件,Openoffice,Adobe Player.
3.所需要的Java类.
public class FilesChanage
{
private static final Logger log = Logger.getLogger(FilesChanage.class);
/**
* TXT文本内容转换成PDF文档
* @param filePath 文本文件地址
* @return String PDF文件地址
* @throws IOException
* @see [类、类#方法、类#成员]
*/
private String txtToPDF(String filePath)
throws IOException
{
log.info("TXT文本内容转换成PDF文档");
// 分析生成pdf文件路径
String pdfFilePath = filePath.substring(0, filePath.lastIndexOf('.')) + ".pdf";
// 读取TXT文件内容
FileReader file = null;
String readLine = null;
// 生成PDF文件
File files = new File(pdfFilePath);
// FileOutputStream out = null;
Document document = null;
PdfWriter writer = null;
BufferedReader inputStream = null;
try
{
// 创建文档,设置页面大小, 左、右、上和下页边距。
document = new Document(PageSize.A4, 50, 50, 50, 50);
// document是创建的文档,out是输出
writer = PdfWriter.getInstance(document, new FileOutputStream(files));
// 打开文档
writer.setViewerPreferences(PdfWriter.PageModeUseOutlines);
document.open();
file = new FileReader(filePath);
inputStream = new BufferedReader(file);
BaseFont bfChinese =
BaseFont.createFont("c:\\WINDOWS\\Fonts\\simfang.ttf", BaseFont.IDENTITY_H, BaseFont.EMBEDDED);
Font font = new Font(bfChinese, 15, Font.BOLD);
while ((readLine = inputStream.readLine()) != null)
{
if (readLine.length() == 0)
{
readLine = " ";
}
// 写文本内容
Paragraph text = new Paragraph(readLine, font);
document.add(text);
}
}
catch (DocumentException e)
{
log.debug("没有发现 c:\\WINDOWS\\Fonts\\simfang.ttf 字体");
log.error(e.getMessage());
}
catch (FileNotFoundException e)
{
log.debug("没有发现需要转换的PDF文档");
log.error(e.getMessage());
}
catch (IOException e)
{
log.debug("生成PDF文档错误");
log.error(e.getMessage());
}
finally
{
if (document != null)
{
document.close();
}
if (inputStream != null)
{
inputStream.close();
}
if (file != null)
{
file.close();
}
if (writer != null)
{
writer.flush();
writer.close();
}
}
return pdfFilePath;
}
/**
* DOC转PDF文档
* @param docFilePath DOC文档地址
* @return int 转换成TIF文件的数量
* @see [类、类#方法、类#成员]
*/
private int docToPdf(String docFilePath)
{
log.info("DOC转PDF文档");
File inputFile = new File(docFilePath);
String newFilePath = docFilePath.substring(0, docFilePath.length() - 3) + "pdf";
File outputFile = new File(newFilePath);
log.info("连接OpenOffice服务，实现PDF文档转换");
OpenOfficeConnection connection = new SocketOpenOfficeConnection(8100);
try
{
connection.connect();
DocumentConverter converter = new OpenOfficeDocumentConverter(connection);
converter.convert(inputFile, outputFile);
log.info("doc转换成PDF文档成功！");
}
catch (ConnectException cex)
{
log.error("连接OpenOffice错误");
}
finally
{
log.info("OpenOffice断开连接");
if (connection != null)
{
connection.disconnect();
connection = null;
}
}
return pdfToJpg(newFilePath);
}
/**
* PDF转JPEG图片
* <功能详细描述>
* @param pdfFilePath PDF文档路径
* @return int 转换成TIF文件的数量
* @see [类、类#方法、类#成员]
*/
private int pdfToJpg(String pdfFilePath)
{
log.info("PDF转JPEG图片");
int pageAll = 0; // 总数量
int pageAll_temp = 0;// 总数量
File file = null;
RandomAccessFile raf = null;
FileChannel channel = null;
FileOutputStream out = null;
MappedByteBuffer buf = null;
Image img = null;
BufferedImage bufferImage = null;
try
{
file = new File(pdfFilePath);
raf = new RandomAccessFile(file, "r");
channel = raf.getChannel();
buf = channel.map(FileChannel.MapMode.READ_ONLY, 0, channel.size());
PDFFile pdffile = new PDFFile(buf);
String filePath = pdfFilePath.substring(0, pdfFilePath.length() - file.getName().length());
String filaName = file.getName().substring(0, file.getName().indexOf('.'));
String newFileName = filePath + filaName;
pageAll = pdffile.getNumPages();
log.info("创建JPEG图片");
for (int i = 1; i <= pageAll; i++)
{
PDFPage page = pdffile.getPage(i);
Rectangle2D rect =
new Rectangle(0, 0, ((int)page.getBBox().getWidth()), ((int)page.getBBox().getHeight()));
img = page.getImage((int)rect.getWidth(), (int)rect.getHeight(), rect, null, true, true);
bufferImage =
new BufferedImage((int)rect.getWidth(), (int)rect.getHeight(), BufferedImage.TYPE_INT_RGB);
bufferImage.getGraphics().drawImage(img, 0, 0, Color.WHITE, null);
String newJPEGFileName = newFileName + i + ".jpg";
String newTIFFileName = newFileName + i + ".tif";
out = new FileOutputStream(newJPEGFileName);
JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(out);
encoder.encode(bufferImage);
boolean isSuccess = jpgTotiff(newJPEGFileName, newTIFFileName);
if (isSuccess)
{
pageAll_temp++;
}
if (out != null)
{
out.flush();
out.close();
}
if (img != null)
{
img.flush();
}
if (bufferImage != null)
{
bufferImage.flush();
}
File jpgFile = new File(newJPEGFileName);
if (jpgFile.exists())
{
jpgFile.delete();
}
}
}
catch (Exception e)
{
log.error("生成JPEG图片错误");
log.error(e.getMessage());
}
finally
{
log.info("关闭相关的文件操作流");
try
{
if (buf != null)
{
unmap(buf);
}
if (channel != null)
{
channel.close();
}
if (raf != null)
{
raf.close();
}
}
catch (IOException e)
{
e.printStackTrace();
}
if (file.exists())
{
file.delete();
}
if (pageAll_temp != pageAll)
{
pageAll = 0;
}
}
return pageAll;
}
/**
* JPEG转TIF文件
* @param jpgFilePath JPEG图片路径
* @param tifFilePath TIF图片路径
* @return boolean 是否转换成功
* @see [类、类#方法、类#成员]
*/
private boolean jpgTotiff(String jpgFilePath, String tifFilePath)
{
log.info("JPEG转TIF文件");
RenderedOp src = JAI.create("fileload", jpgFilePath);
OutputStream os = null;
ImageEncoder enc = null;
boolean isSuccess = false;
try
{
os = new FileOutputStream(tifFilePath);
TIFFEncodeParam param = new TIFFEncodeParam();
enc = ImageCodec.createImageEncoder("TIFF", os, param);
enc.encode(src);
isSuccess = true;
}
catch (FileNotFoundException e)
{
isSuccess = false;
log.error("需要创建的TIF文件路径不正确");
log.error(e.getMessage());
}
catch (IOException e)
{
isSuccess = false;
log.error("生成TIF文件失败");
log.error(e.getMessage());
}
finally
{
log.info("关闭文件操作流");
try
{
if (os != null)
{
os.flush();
os.close();
}
}
catch (IOException e)
{
log.error("关闭文件操作流失败");
log.error(e.getMessage());
}
}
return isSuccess;
}
/**
* 释放PDF集合
* @param buffer
* @see [类、类#方法、类#成员]
*/
public void unmap(final Object buffer)
{
log.info("释放PDF集合");
AccessController.doPrivileged(new PrivilegedAction()
{
public Object run()
{
try
{
Method getCleanerMethod = buffer.getClass().getMethod("cleaner", new Class[0]);
getCleanerMethod.setAccessible(true);
sun.misc.Cleaner cleaner = (sun.misc.Cleaner)getCleanerMethod.invoke(buffer, new Object[0]);
cleaner.clean();
}
catch (Exception e)
{
log.error("释放PDF集合失败");
log.error(e.getMessage());
}
return null;
}
});
}
/**
* 文档转换成TIF文件
* @param filePath 需要转换的文件路径
* @return int 转换后文件的数量
* @see [类、类#方法、类#成员]
*/
public int ChangeFile(String filePath)
{
log.info("DOC TXT文档转换成TIF文件");
String fileType = filePath.substring(filePath.lastIndexOf('.'), filePath.length());
int pagesize = 0;
if (".doc".equals(fileType))
{
log.info("doc文档转换");
pagesize = docToPdf(filePath);
}
else
{
log.info("txt文档转换");
String pdfFilePath;
try
{
pdfFilePath = txtToPDF(filePath);
pagesize = pdfToJpg(pdfFilePath);
}
catch (IOException e)
{
log.error("生成PDF文档失败");
log.error(e.getMessage());
}
}
return pagesize;
}
}
public class ComeAction extends DispatchAction
{
private static final Logger log = Logger.getLogger(FilesChanage.class);
/**
* 文档转换Action
* @param mapping
* @param form
* @param request
* @param response
* @see [类、类#方法、类#成员]
*/
public void chanageFile(ActionMapping mapping, ActionForm form, HttpServletRequest request,
HttpServletResponse response)
{
log.info("进入文档转换Action");
// 获取文件路径
String filePath = request.getParameter("filePath");
// 实现文件转换
FilesChanage filesChanage = new FilesChanage();
String pagenumber = String.valueOf(filesChanage.ChangeFile(filePath));
log.info("获取转换文件数量。共" + pagenumber + "页");
// 数据回写
try
{
log.info("将获取到的数据回写");
response.setContentType("text/html");
response.setHeader("Pragma", "no-cache");
response.setHeader("Cache-Control", "no-cache, must-revalidate");
response.setHeader("Pragma", "no-cache");
response.getWriter().write(pagenumber);
}
catch (IOException e)
{
log.error("response数据流回写失败");
log.error(e.getMessage());
}
finally
{
try
{
response.getWriter().flush();
response.getWriter().close();
}
catch (IOException e)
{
log.error("response数据流关闭失败");
log.error(e.getMessage());
}
}
}
}里面还涉及了监听器的东东,者立即不上传了.这些代码已经可以完成doc文件转tif了.过段时间给大家上传不需要第三方软件支持的转换方式.
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