Java实现文档在线预览demo(openoffice+swfTools+FlexPaper)

package com.estone.test; import java.io.BufferedInputStream; import java.io.BufferedOutputStream; import java.io.BufferedReader; import java.io.File; import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import com.artofsolving.jodconverter.DocumentConverter; import com.artofsolving.jodconverter.openoffice.connection.OpenOfficeConnection; import com.artofsolving.jodconverter.openoffice.connection.SocketOpenOfficeConnection; import com.artofsolving.jodconverter.openoffice.converter.OpenOfficeDocumentConverter; public class DocConverter { private String SWFTools_Windows = "F:/sortware/testingsoftware/SWFTools/pdf2swf.exe "; private String SWFTools_Linux = "F:/sortware/testingsoftware/SWFTools/pdf2swf.exe "; private static final int environment = 1;// 环境1：windows,2:linux(涉及pdf2swf路径问题) private String fileString; private String outputPath = "";// 输入路径，如果不设置就输出在默认位置 private String fileName; private File pdfFile; private File swfFile; private File docFile; private File odtFile; public DocConverter(String fileString) { ini(fileString); } /* * 重新设置 file @param fileString */ public void setFile(String fileString) { ini(fileString); } /* * 初始化 @param fileString */ private void ini(String fileString) { try { this.fileString = fileString; fileName = fileString.substring(0, fileString.lastIndexOf("/")); docFile = new File(fileString); String s = fileString.substring(fileString.lastIndexOf("/") + 1,fileString.lastIndexOf(".")); fileName = fileName + "/" + s; // 用于处理TXT文档转化为PDF格式乱码,获取上传文件的名称（不需要后面的格式） String txtName = fileString.substring(fileString.lastIndexOf(".")); // 判断上传的文件是否是TXT文件 if (txtName.equalsIgnoreCase(".txt")) { // 定义相应的ODT格式文件名称 odtFile = new File(fileName + ".odt"); // 将上传的文档重新copy一份，并且修改为ODT格式，然后有ODT格式转化为PDF格式 this.copyFile(docFile, odtFile); pdfFile = new File(fileName + ".pdf"); // 用于处理PDF文档 } else if (txtName.equals(".pdf") || txtName.equals(".PDF")) { pdfFile = new File(fileName + ".pdf"); this.copyFile(docFile, pdfFile); } else { pdfFile = new File(fileName + ".pdf"); } swfFile = new File(fileName + ".swf"); } catch (Exception e) { e.printStackTrace(); } } /** * @Title: copyFile * @Description: TODO * @param: @param docFile2 * @param: @param odtFile2 * @return: void * @author: hl * @time: 2014-4-17 下午9:41:52 * @throws */ private void copyFile(File sourceFile,File targetFile)throws Exception{ //新建文件输入流并对它进行缓冲  FileInputStream input = new FileInputStream(sourceFile); BufferedInputStream inBuff = new BufferedInputStream(input); // 新建文件输出流并对它进行缓冲 FileOutputStream output = new FileOutputStream(targetFile); BufferedOutputStream outBuff = new BufferedOutputStream(output); // 缓冲数组  byte[]b = new byte[1024 * 5]; int len; while((len = inBuff.read(b)) != -1){ outBuff.write(b,0,len); } // 刷新此缓冲的输出流 outBuff.flush(); // 关闭流 inBuff.close(); outBuff.close(); output.close(); input.close(); } /* * 转为PDF @param file */ private void doc2pdf() throws Exception { if (docFile.exists()) { if (!pdfFile.exists()) { OpenOfficeConnection connection = new SocketOpenOfficeConnection(8100); try { connection.connect(); DocumentConverter converter = new OpenOfficeDocumentConverter(connection); converter.convert(docFile, pdfFile); // close the connection connection.disconnect(); System.out.println("****pdf转换成功，PDF输出：" + pdfFile.getPath() + "****"); } catch (java.net.ConnectException e) { // ToDo Auto-generated catch block e.printStackTrace(); System.out.println("****swf转换异常，openoffice服务未启动！****"); throw e; } catch (com.artofsolving.jodconverter.openoffice.connection.OpenOfficeException e) { e.printStackTrace(); System.out.println("****swf转换器异常，读取转换文件失败****"); throw e; } catch (Exception e) { e.printStackTrace(); throw e; } } else { System.out.println("****已经转换为pdf，不需要再进行转化****"); } } else { System.out.println("****swf转换器异常，需要转换的文档不存在，无法转换****"); } } /* * 转换成swf */ @SuppressWarnings("unused") private void pdf2swf() throws Exception { Runtime r = Runtime.getRuntime(); if (!swfFile.exists()) { if (pdfFile.exists()) { if (environment == 1){// windows环境处理 try { // 这里根据SWFTools安装路径需要进行相应更改 Process p = r.exec(SWFTools_Windows + pdfFile.getPath() + " -o " + swfFile.getPath() + " -T 9"); System.out.print(loadStream(p.getInputStream())); System.err.print(loadStream(p.getErrorStream())); System.out.print(loadStream(p.getInputStream())); System.err.println("****swf转换成功，文件输出：" + swfFile.getPath() + "****"); if (pdfFile.exists()) { pdfFile.delete(); } } catch (Exception e) { e.printStackTrace(); throw e; } } else if (environment == 2){// linux环境处理 try { Process p = r.exec("pdf2swf " + pdfFile.getPath() + " -o " + swfFile.getPath() + " -T 9"); System.out.print(loadStream(p.getInputStream())); System.err.print(loadStream(p.getErrorStream())); System.err.println("****swf转换成功，文件输出：" + swfFile.getPath() + "****"); if (pdfFile.exists()) { pdfFile.delete(); } } catch (Exception e) { e.printStackTrace(); throw new RuntimeException(); } } } else { System.out.println("****pdf不存在，无法转换****"); } } else { System.out.println("****swf已存在不需要转换****"); } } static String loadStream(InputStream in) throws IOException { int ptr = 0; //把InputStream字节流 替换为BufferedReader字符流 2013-07-17修改 BufferedReader reader = new BufferedReader(new InputStreamReader(in)); StringBuilder buffer = new StringBuilder(); while ((ptr = reader.read()) != -1) { buffer.append((char) ptr); } return buffer.toString(); } /* * 转换主方法 */ public boolean conver() { if (swfFile.exists()) { System.out.println("****swf转换器开始工作，该文件已经转换为swf****"); return true; } if (environment == 1) { System.out.println("****swf转换器开始工作，当前设置运行环境windows****"); } else { System.out.println("****swf转换器开始工作，当前设置运行环境linux****"); } try { doc2pdf(); pdf2swf(); } catch (Exception e) { // TODO: Auto-generated catch block e.printStackTrace(); return false; } if (swfFile.exists()) { return true; } else { return false; } } /* * 返回文件路径 @param s */ public String getswfPath() { if (swfFile.exists()) { String tempString = swfFile.getPath(); tempString = tempString.replaceAll("\\\\", "/"); return tempString;