在线阅读Office文件

一、文档在线阅读思路 

    1.用OpenOffice把PPT、Word、Excel、Text转换为pdf
    2.用SWFTool将生成的pdf转换成swf，然后利用FlexPlayer实现在线预览播放
二、准备工作
    1.安装OpenOffice，官网下载地址：http://www.openoffice.org/download/index.html，最新版为3.4.1，我使用的版本为3.3.0：http://pan.baidu.com/share/link?shareid=1181746637&uk=1913152192#dir/path=%2F%E8%BD%AF%E4%BB%B6%E5%B7%A5%E5%85%B7
    2.启动OpenOffice服务，CMD命令进入OpenOffice安装目录下的program目录，键入如下命令
        soffice "-accept=socket,host=localhost,port=8100;urp;StarOffice.ServiceManager" -nologo -headless -nofirststartwizard
    
    参考资料：http://blog.csdn.net/hbcui1984/article/details/5109169
    3.下载JODConverter：http://sourceforge.net/projects/jodconverter/files/，项目中主要使用lib目录下的jar包。
    4.下载并安装SWFTools：http://www.swftools.org/download.html，下载exe文件安装完成即可
    5.下载FlexPlayer
    http://pan.baidu.com/share/link?shareid=1181746637&uk=1913152192#dir/path=%2F%E8%BD%AF%E4%BB%B6%E5%B7%A5%E5%85%B7
    官网下载地址：http://flexpaper.devaldi.com/download/，版本为2.1.5，与1.5.1有较大差别，未使用最新版。

三、软件开发 
    1.新建web项目并引入jar包
        阅读JODConverter/lib目录下的DEPENDENCIES.txt可知需要添加哪些jar包
        

        新建OfficeOnline项目，引入相应jar包（使用的是cos进行文档上传,cos.jar需要另外下载），将FlexPaper_1.5.1_flash.zip解压后的js目录引入到项目中，FlexPaperViewer.swf也引入进来
        
    2.新建DocConverter.java
        注意：根据SWFTools安装路径不同需要修改pdf2swf()方法中pdf2swf.exe的路径，我安装的路径是在D盘
                main()测试中根据自己文档路径进行修改测试。

package com.util;import java.io.BufferedReader;import java.io.File;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 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;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) {this.fileString = fileString;fileName = fileString.substring(0, fileString.lastIndexOf("."));docFile = new File(fileString);pdfFile = new File(fileName + ".pdf");swfFile = new File(fileName + ".swf");}/* * 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 connectionconnection.disconnect();System.out.println("****pdf转换成功，PDF输出：" + pdfFile.getPath() + "****");} catch (java.net.ConnectException e) {// ToDo Auto-generated catch blocke.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 */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("d:/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()));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 e;}}} 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 blocke.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;} else {return "";}}/* * 设置输出路径 */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");}}}public static void main(String s[]) {DocConverter d = new DocConverter("E:/TDDOWNLOAD/test.doc");d.conver();}}

        运行结果： 
              
    3.新建 documentUpload.jsp 
    

<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%><!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><title>文档在线预览系统</title><style>body {margin-top: 100px;background: #fff;font-family: Verdana, Tahoma;}a {color: #CE4614;}#msg-box {color: #CE4614;font-size: 0.9em;text-align: center;}#msg-box .logo {border-bottom: 5px solid #ECE5D9;margin-bottom: 20px;padding-bottom: 10px;}#msg-box .title {font-size: 1.4em;font-weight: bold;margin: 0 0 30px 0;}#msg-box .nav {margin-top: 20px;}</style></head><body><div id="msg-box"><form name="form1" method="post" enctype="multipart/form-data" action="docUploadConvertAction.jsp"><div class="title">请上传要处理的文件，过程可能需要几分钟，请稍候片刻。</div><p><input name="file1" type="file"></p><p><input type="submit" name="Submit" value="上传"></p></form></div></body></html>

    4.新建docUploadConvertAction.jsp
        

<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%><%@page import="java.io.*"%><%@page import="java.util.Enumeration"%><%@page import="com.oreilly.servlet.MultipartRequest"%><%@page import="com.oreilly.servlet.multipart.DefaultFileRenamePolicy"%><%@page import="com.util.DocConverter"%><%//文件上传采用cos组件上传，可更换为commons-fileupload上传，文件上传后，保存在upload文件夹//获取文件上传路径String saveDirectory = application.getRealPath("/") + "upload";//打印上传路径信息System.out.println(saveDirectory);//每个文件最大50mint maxPostSize = 50 * 1024 * 1024;//采用cos缺省的命名策略，重名后加1,2,3...如果不加dfp重名将覆盖DefaultFileRenamePolicy dfp = new DefaultFileRenamePolicy();//response的编码为"UTF-8",同时采用缺省的文件名冲突解决策略,实现上传,如果不加dfp重名将覆盖MultipartRequest multi = new MultipartRequest(request, saveDirectory, maxPostSize, "UTF-8", dfp);//MultipartRequest multi = new MultipartRequest(request, saveDirectory, maxPostSize,"UTF-8");//输出反馈信息Enumeration files = multi.getFileNames();while (files.hasMoreElements()) {System.err.println("ccc");String name = (String) files.nextElement();File f = multi.getFile(name);if (f != null) {String fileName = multi.getFilesystemName(name);//获取上传文件的扩展名String extName = fileName.substring(fileName.lastIndexOf(".") + 1);//文件全路径String lastFileName = saveDirectory + "\\" + fileName;//获取需要转换的文件名,将路径名中的'\'替换为'/'String converfilename = saveDirectory.replaceAll("\\\\", "/") + "/" + fileName;System.out.println(converfilename);//调用转换类DocConverter,并将需要转换的文件传递给该类的构造方法DocConverter d = new DocConverter(converfilename);//调用conver方法开始转换，先执行doc2pdf()将office文件转换为pdf;再执行pdf2swf()将pdf转换为swf;d.conver();//调用getswfPath()方法，打印转换后的swf文件路径System.out.println(d.getswfPath());//生成swf相对路径，以便传递给flexpaper播放器String swfpath = "upload" + d.getswfPath().substring(d.getswfPath().lastIndexOf("/"));System.out.println(swfpath);//将相对路径放入sessio中保存session.setAttribute("swfpath", swfpath);out.println("上传的文件:" + lastFileName);out.println("文件类型" + extName);out.println("<hr>");}}%><!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><title>Insert title here</title><style>body {margin-top: 100px;background: #fff;font-family: Verdana, Tahoma;}a {color: #CE4614;}#msg-box {color: #CE4614;font-size: 0.9em;text-align: center;}#msg-box .logo {border-bottom: 5px solid #ECE5D9;margin-bottom: 20px;padding-bottom: 10px;}#msg-box .title {font-size: 1.4em;font-weight: bold;margin: 0 0 30px 0;}#msg-box .nav {margin-top: 20px;}</style></head><body><div><form name="viewForm" id="form_swf" action="documentView.jsp" method="POST"><input type='submit' value='预览' class='BUTTON SUBMIT' /></form></div></body></html>

    5.新建documentView.jsp
    

<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%><%String swfFilePath = session.getAttribute("swfpath").toString();%><!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><script type="text/javascript" src="js/jquery.js"></script><script type="text/javascript" src="js/flexpaper_flash.js"></script><script type="text/javascript" src="js/flexpaper_flash_debug.js"></script><style type="text/css" media="screen">html,body {height: 100%;}body {margin: 0;padding: 0;overflow: auto;}#flashContent {display: none;}</style><title>文档在线预览系统</title></head><body><div style="position: absolute; left: 50px; top: 10px;"><a id="viewerPlaceHolder" style="width: 820px; height: 650px; display: block"></a><script type="text/javascript"> var fp = new FlexPaperViewer( 'FlexPaperViewer', 'viewerPlaceHolder', { config : { SwfFile : escape('<%=swfFilePath%>'),//编码设置 Scale : 0.6,  ZoomTransition : 'easeOut',//变焦过渡 ZoomTime : 0.5, ZoomInterval : 0.2,//缩放滑块-移动的缩放基础[工具栏] FitPageOnLoad : true,//自适应页面 FitWidthOnLoad : true,//自适应宽度 FullScreenAsMaxWindow : false,//全屏按钮-新页面全屏[工具栏] ProgressiveLoading : false,//分割加载 MinZoomSize : 0.2,//最小缩放 MaxZoomSize : 3,//最大缩放 SearchMatchAll : true, InitViewMode : 'Portrait',//初始显示模式(SinglePage,TwoPage,Portrait)  ViewModeToolsVisible : true,//显示模式工具栏是否显示 ZoomToolsVisible : true,//缩放工具栏是否显示 NavToolsVisible : true,//跳页工具栏 CursorToolsVisible : false, SearchToolsVisible : true,  PrintPaperAsBitmap:false,   localeChain: 'en_US' }});        </script></div></body></html>

        FlexPaperViewer参数设置对应说明文档：http://flexpaper.devaldi.com/docs_parameters.jsp
    6.部署后访问：http://localhost:8080/OfficeOnline/documentUpload.jsp
    
    上传成功后预览：
        
    7.若出现swf无法预览，请访问http://www.macromedia.com/support/documentation/en/flashplayer/help/settings_manager04a.html#119065将生成swf的文件夹设置为信任文件。
    8.参考资料：http://blog.csdn.net/hil2000/article/details/8459940
                        http://www.cnblogs.com/star-studio/archive/2011/12/09/2281807.html
                       文件中文名乱码解决：http://blog.csdn.net/kunoy/article/details/7903258

四、其他优化
    解决flexpaper搜索文字时不能高亮的问题： http://my.oschina.net/dianfusoft/blog/125450 
     flexpaper去简介去水印等：http://blog.csdn.net/zengraoli/article/details/7827840