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
    在线阅读Office文件_第1张图片
    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
        在线阅读Office文件_第2张图片

        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
        在线阅读Office文件_第3张图片
    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 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
	 */
	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 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;
		} 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: 
              在线阅读Office文件_第4张图片  
    3.新建   documentUpload.jsp  
    
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>

<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50m int 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("
"); } }
%> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>Insert title heretitle> <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();
%>

<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:8 0 80 /OfficeOnline/documentUpload.jsp
    在线阅读Office文件_第5张图片
    上传成功后预览:
        在线阅读Office文件_第6张图片
    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 

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