Java语言下,openoffcie+swfTools+flexPaper在线预览功能,包含linux服务器部署
1.概论
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插件将pdf文件转换成swf格式的文件
3.通过FlexPaper文档组件在页面实现在线预览功能
2.所需软件
openoffice : http://www.openoffice.org/zh-cn/download/ ,本人下载4.1.5版本
swfTools:http://www.swftools.org/download.html, 本人下载swftools-2013-04-09-1007.exe
FlexPaper : https://flowpaper.com/download/ , 能够实现在页面上将swf文件进行在线预览展示,类似百度文库功能,可托拉拽网页,可分页等。
JODConverter : 是Java的文件转换器,此处仅用到几个jar包,
3.安装软件
(1) openoffice安装,依次下一步进行,无需改变安装盘符,以cmd命令行进入安装目录,以我的为例:
4.开发
依照各自项目实际情况确定方案,本人项目采用springboot,将文件转换逻辑放在java后端进行,输出swf格式文件,将输出的swf文件放置项目工程目录下,前端页面进行读取指定目录的文件,从而输出文件,生成在线文档。
(1)flexpaper_flash.js,flexpaper_flash_debug.js, flexpaper.js,flexPaperViewer.swf , jquery.min.js,jquery.js 这几个个js文件主要是预览swf文件的插件放到工程目录下
(2)在pom.xml中导入jodConvertor 以及openoffice所需jar包
<dependency> <groupId>com.artofsolving</groupId> <artifactId>jodconverter</artifactId> <version>2.2.1</version> </dependency> <dependency> <groupId>commons-cli</groupId> <artifactId>commons-cli</artifactId> <version>1.2</version> </dependency> <dependency> <groupId>commons-io</groupId> <artifactId>commons-io</artifactId> <version>2.3</version> </dependency> <dependency> <groupId>org.openoffice</groupId> <artifactId>juh</artifactId> <version>2.3.0</version> </dependency> <dependency> <groupId>org.openoffice</groupId> <artifactId>jurt</artifactId> <version>2.3.0</version> </dependency> <dependency> <groupId>org.openoffice</groupId> <artifactId>ridl</artifactId> <version>2.3.0</version> </dependency> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-jdk14</artifactId> <version>1.5.6</version> </dependency> <dependency> <groupId>org.openoffice</groupId> <artifactId>unoil</artifactId> <version>2.3.0</version> </dependency> <dependency> <groupId>com.thoughtworks.xstream</groupId> <artifactId>xstream</artifactId> <version>1.3.1</version> </dependency>
(3)将word,ppt,excle,txt等格式文件转换为swf
package cn.gnw.resource.util; import java.io.File; /** * @author gege * @Description word -> html转换工具 * */ 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; import org.slf4j.Logger; import org.slf4j.LoggerFactory; /** * doc docx格式转换 */ public class ConverterUtil { private static final int environment = 2;// 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; Logger logger = LoggerFactory.getLogger(getClass()); public ConverterUtil(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 */ private void doc2pdf() throws Exception { if (docFile.exists()) { if (!pdfFile.exists()) { OpenOfficeConnection connection = new SocketOpenOfficeConnection("127.0.0.1",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) { 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,指定swf安装路径 */ @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 { System.err.println("pdfFile.getPath()=============="+pdfFile.getPath()); System.err.println("swfFile.getPath()=============="+swfFile.getPath()); // Process p = r.exec("/usr/swftools/bin/pdf2swf"+ pdfFile.getPath() + " -o "+ swfFile.getPath() + " -T 9"); Process p = r.exec("C:/Program Files (x86)/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 (IOException e) { e.printStackTrace(); throw e; } } else if (environment == 2) {// linux环境处理 try { System.err.println("pdfFile.getPath()=============="+pdfFile.getPath()); System.err.println("swfFile.getPath()=============="+swfFile.getPath()); Process p = r.exec("pdf2swf" +" "+ pdfFile.getPath() + " -o " + swfFile.getPath() +" -s languagedir=/usr/share/xpdf/xpdf-chinese-simplified -s flashversion=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 * * @param */ 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"); } } } }
(3)将需转换的文件落地至项目工程目录下,调用上方工程实用类,转换为swf文件,并输出swf文件落地路径。
(4)前端页面
<script th:inline="javascript"> jQuery(function ($) { var path = $('#swfSrc').val(); console.log(path); path = '/pdfPreview/'+ path; var fp = new FlexPaperViewer('/js/FlexPaperViewer', 'viewerPlaceHolder', { config: { SwfFile: escape(path), // swf文件位置 Scale: 1.2, ZoomTransition: 'easeOut', ZoomTime: 0.5, ZoomInterval: 0.2, FitPageOnLoad: false, FitWidthOnload: false, FullScreenAsMaxWindow: false, ProgressiveLoading: false, MinZoomSize: 0.2, MaxZoomSize: 5, SearchMatchAll: false, InitViewMode: 'SinglePage', RenderingOrder: 'flash', ViewModeToolsVisible: true, ZoomToolsVisible: true, NavToolsVisible: true, CursorToolsVisible: true, SearchToolsVisible: true, localeChain: 'en_US' } }); }); </script>
(5)实现效果
(6)linux部分 (待完善)
在linux服务器上部署,若出现乱码现象,