Java基于springmvc实现文档预览（openoffice+swftools+flexpaper）
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Java基于springmvc使用openoffice+swftools+flexpaper实现在线预览
源码下载
1.概述
主要原理
1.通过第三方工具openoffice，将word、excel、ppt、txt等文件转换为pdf文件
2.通过swfTools将pdf文件转换成swf格式的文件
3.通过FlexPaper文档组件在页面上进行展示
2.安装包下载
1.openoffice是Apache下的一个开放免费的文字处理软件
下载地址：Apache Open Office 4.x
2.SWFTools是一组用来处理Flash的swf文件的工具包，我们使用它将pdf文件转成swf文件!
下载地址：SWFTools官网下载 swftools-2013-04-09-1007.exe
3.FlexPaper是一个开源轻量级的在浏览器上显示各种文档的组件
下载地址：FlexPaper官网下载
3.安装文件
1.将所下载的文件（JODConverter除外）进行安装，盘符可随自己设定！需要注意的是在openoffice安装完成后，当我们使用它时，需将它的服务打开。在次我们需要以命令的方式打开:
打开dos窗口，进入openoffice安装盘符，输入以下代码来启动服务：
soffice -headless -accept="socket,host=127.0.0.1,port=8100;urp;" -nofirststartwizard
注意：最后一个命令前边的‘—’,可不要写错！服务起不来，项目可是继续不下去的哦.
官网启动服务截图如下：
本地运行截图：
运行成功是没有反馈的，若不放心，可以打开任务管理器，在进程中可以看到以下俩个进程：
3.开发过程
1.使用maven新建一个web项目，将源码中resource中flexpaper文件中的js文件夹(包含了flexpaper_flash_debug.js，flexpaper_flash.js,jQuery.js,这三个js文件主要是预览swf文件的插件)
拷贝至网站根目录;将FlexPaperViewer.swf拷贝至网站根目录下(该文件主要是用在网页中播放swf文件的播放器)，目录结构如下图：
注：需创建upload文件夹
2.添加maven pom依赖
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>com.arthur</groupId> <artifactId>online-view</artifactId> <packaging>war</packaging> <version>1.0-SNAPSHOT</version> <name>online-view Maven Webapp</name> <url>http://maven.apache.org</url> <properties> <!-- spring版本号 --> <spring.version>4.1.0.RELEASE</spring.version> <fileupload.version>1.2.1</fileupload.version> </properties> <dependencies> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.11</version> <scope>test</scope> </dependency> <dependency> <groupId>com.artofsolving</groupId> <artifactId>jodconverter</artifactId> <version>2.2.1</version> </dependency> <!-- servlet --> <dependency> <groupId>javax.servlet</groupId> <artifactId>servlet-api</artifactId> <version>2.5</version> <scope>provided</scope> </dependency> <dependency> <groupId>javax.servlet.jsp</groupId> <artifactId>jsp-api</artifactId> <version>2.1</version> <scope>provided</scope> </dependency> <!-- https://mvnrepository.com/artifact/org.slf4j/slf4j-api --> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-api</artifactId> <version>1.6.0</version> </dependency> <!-- https://mvnrepository.com/artifact/org.slf4j/slf4j-nop --> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-nop</artifactId> <version>1.6.0</version> <scope>test</scope> </dependency> <!-- spring核心包 --> <!-- springframe start --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-beans</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-core</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-web</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context-support</artifactId> <version>${spring.version}</version> </dependency> <!-- springframe end --> <dependency> <groupId>commons-fileupload</groupId> <artifactId>commons-fileupload</artifactId> <version>${fileupload.version}</version> </dependency> </dependencies> <build> <finalName>online-view</finalName> </build></project>3.创建springmvc.xml配置文件<?xml version="1.0" encoding="UTF-8"?><beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context" xmlns:mvc="http://www.springframework.org/schema/mvc" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd"> <!--自动扫描包--> <context:component-scan base-package="com.arthur.controller"></context:component-scan> <mvc:annotation-driven /> <!-- 配置视图解析器 如何把handler 方法返回值解析为实际的物理视图 --> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name = "prefix" value="/WEB-INF/views/"></property> <property name = "suffix" value = ".jsp"></property> </bean> <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver"> <property name="defaultEncoding" value="UTF-8"/> <!--50M--> <property name="maxUploadSize" value="52428800" /> <property name="maxInMemorySize" value="4096" /> </bean> <mvc:resources mapping="/js/**" location="/js/" /> <mvc:resources mapping="/upload/**" location="/upload/" /> <mvc:resources mapping="/*.swf" location="/" /></beans>4.在web.xml中配置好spring mvc
<?xml version="1.0" encoding="UTF-8"?><web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" version="2.5"> <display-name>Archetype Created Web Application</display-name> <!-- Spring字符集过滤器 --> <filter> <filter-name>SpringEncodingFilter</filter-name> <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class> <init-param> <param-name>encoding</param-name> <param-value>UTF-8</param-value> </init-param> <init-param> <param-name>forceEncoding</param-name> <param-value>true</param-value> </init-param> </filter> <filter-mapping> <filter-name>SpringEncodingFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <servlet> <servlet-name>springmvc</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:spring/springmvc.xml</param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>springmvc</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping></web-app>5.创建文件上传视图( fileUpload.jsp )和文档在线预览视图（documentView.jsp）
fileUpload.jsp:
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%><!DOCTYPE html><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="/convert"> <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="file" type="file"> </p> <p> <input type="submit" name="Submit" value="上传"> </p> </form ></div></body></html>documentView.jsp：<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%><% String swfFilePath=session.getAttribute("swfpath").toString();%><!DOCTYPE html><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:1000px;height:700px;display:block"></a> <script type="text/javascript"> var fp = new FlexPaperViewer( 'FlexPaperViewer', 'viewerPlaceHolder', { config : { SwfFile : escape('<%=swfFilePath%>'), Scale : 1.4, ZoomTransition : 'easeOut', ZoomTime : 0.5, ZoomInterval : 0.2, FitPageOnLoad : true, FitWidthOnLoad : false, FullScreenAsMaxWindow : false, ProgressiveLoading : false, MinZoomSize : 0.2, MaxZoomSize : 5, SearchMatchAll : false, InitViewMode : 'SinglePage', ViewModeToolsVisible : true, ZoomToolsVisible : true, NavToolsVisible : true, CursorToolsVisible : true, SearchToolsVisible : true, localeChain: 'zh_CN' }}); </script></div></body></html>6.创建转换类DocConverter.java
package com.arthur.util;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;/** * doc docx格式转换 */public class DocConverter { private static final int environment = 1;// 环境 1：windows 2:linux private String fileString;// (只涉及pdf2swf路径问题) private String outputPath = "";// 输入路径 ，如果不设置就输出在默认的位置 private String fileName; private File pdfFile; private File swfFile; private File docFile; private final String OPEN_OFFICE_HOST="127.0.0.1"; //open office运行的host private final Integer OPEN_OFFICE_PORT=8100; //open office运行的端口号，默认8100 private final String SWFTOOLS_HOME="C:/Program Files (x86)/SWFTools/"; //swfTools的安装路径 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(OPEN_OFFICE_HOST,OPEN_OFFICE_PORT); 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) { e.printStackTrace(); System.out.println("****swf转换器异常，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 { Process p = r.exec(SWFTOOLS_HOME+"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 (IOException 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已经存在不需要转换****"); } } 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(); } /** * 转换主方法 */ @SuppressWarnings("unused") 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) { e.printStackTrace(); return false; } if (swfFile.exists()) { return true; } else { return false; } } /** * 返回文件路径 * */ 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"); } } }}7. 创建文件在线预览的Controller : ViewController.javapackage com.arthur.controller;import com.arthur.util.DocConverter;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.stereotype.Controller;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RequestMethod;import org.springframework.web.bind.annotation.RequestParam;import org.springframework.web.multipart.commons.CommonsMultipartFile;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import java.io.File;import java.io.IOException;/** * Created by Administrator on 2017/6/15. */@Controllerpublic class ViewController { @RequestMapping(value = "/upload",method = RequestMethod.GET) public String showUploadPage(){ return "fileUpload"; } @RequestMapping(value = "/viewer",method = RequestMethod.GET) public String showViewer(){ return "documentView"; } @RequestMapping(value = "/convert",method = RequestMethod.POST) public String convert(HttpServletRequest request, HttpServletResponse response , @RequestParam(value = "file") CommonsMultipartFile file) throws IOException{ /** 构建文件保存的目录* */ String saveDirectory =request.getSession().getServletContext().getRealPath("/")+"upload"+"/"; String filename = ""+System.currentTimeMillis(); String extname = file.getOriginalFilename().substring(file.getOriginalFilename().lastIndexOf(".")); String path = saveDirectory+filename+extname; File newFile=new File(path); file.transferTo(newFile); DocConverter d = new DocConverter(path); d.conver(); String swfpath = "upload"+d.getswfPath().substring(d.getswfPath().lastIndexOf("/")); request.getSession().setAttribute("swfpath", swfpath); return "redirect:/viewer"; }}8.部署项目到tomcat
在地址栏中输入：http://localhost:8080/upload，如下图：
单击选择文件，选择您要上传的文档，然后单击上传，处理完成后，打印如下信息，如下图所示：
常见问题
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位置。
最后，若需要去除打印功能及logo，可重新编译 flexpaper 的 flash文件，网上也有下载
FlexPaper参数
参考博客： java实现附件预览（openoffice+swftools+flexpaper）
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