java 实现office文档的在线预览

package com.estone.test; import java.io.BufferedInputStream; import java.io.File; import java.io.IOException; import java.io.InputStream; 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; /** * 文件转化预览 * @author cp * */ public class DocConverter { private static final int environment = 1; private String fileString; private String outputPath = ""; private String fileName; private File pdfFile; private File swfFile; private File docFile; public DocConverter(String fileString) { ini(fileString); } /** * 閲嶆柊璁剧疆file * * @param fileString */ public void setFile(String fileString) { ini(fileString); } /** * 鍒濆鍖� * * @param fileString */ private void ini(String fileString) { this.fileString = fileString; fileName = fileString.substring(0, fileString.lastIndexOf(".")); docFile = new File(fileString); pdfFile = new File(fileName + ".pdf"); swfFile = new File(fileName + ".swf"); } /** * 杞负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(); } catch (java.net.ConnectException e) { e.printStackTrace(); throw e; } catch (com.artofsolving.jodconverter.openoffice.connection.OpenOfficeException e) { e.printStackTrace(); throw e; } catch (Exception e) { e.printStackTrace(); throw e; } } else { //System.out.println("转化失败"); } } else { System.out.println("文件不存在"); } } /** * 杞崲鎴� swf */ @SuppressWarnings("unused") private void pdf2swf() throws Exception { Runtime r = Runtime.getRuntime(); if (!swfFile.exists()) { if (pdfFile.exists()) { if (environment == 1) { try { Process p = r.exec("D:/FILE_LOAD/swftools/pdf2swf.exe "+ 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())); if (pdfFile.exists()) { pdfFile.delete(); } } catch (IOException e) { e.printStackTrace(); throw e; } } else if (environment == 2) { 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())); if (pdfFile.exists()) { pdfFile.delete(); } } catch (Exception e) { e.printStackTrace(); throw e; } } } else { } } else { System.out.println("文件不存在"); } } static String loadStream(InputStream in) throws IOException { int ptr = 0; in = new BufferedInputStream(in); StringBuffer buffer = new StringBuffer(); while ((ptr = in.read()) != -1) { buffer.append((char) ptr); } return buffer.toString(); } /** * 转化 * @return */ @SuppressWarnings("unused") public boolean conver() { if (swfFile.exists()) { System.out.println("文件转化成功"); return true; } if (environment == 1) { System.out.println("windows环境"); } else { System.out.println("linux环境"); } try { doc2pdf(); pdf2swf(); } catch (Exception e) { e.printStackTrace(); return false; } if (swfFile.exists()) { return true; } else { return false; } } /** * 获取swf文件的路径 * @return */ public String getswfPath() { if (swfFile.exists()) { String tempString = swfFile.getPath(); tempString = tempString.replaceAll("\\\\", "/"); return tempString; } else { return ""; } } /** * 设置输出路径 * @param outputPath */ public void setOutputPath(String outputPath) { this.outputPath = outputPath; if (!outputPath.equals("")) { String realName = fileName.substring(fileName.lastIndexOf("/"), fileName.lastIndexOf(".")); if (outputPath.charAt(outputPath.length()) == '/') { swfFile = new File(outputPath + realName + ".swf"); } else { swfFile = new File(outputPath + realName + ".swf"); } } } }