JAVA+FlexPaper+OpenOffice+SWFTools文档预览

http://blog.csdn.net/core_star/article/details/10148047

 

 

1、软件环境：

• openoffice:启动openoffice服务：soffice.exe -headless -nologo -norestore -accept=socket,host=localhost,port=8100;urp;StarOffice.ServiceManager
• swftools

2、所需组件：

• flexpaper ： flexpaper_flash_debug.js，flexpaper_flash.js,jquery.js ， FlexPaperViewer.swf    
•  OpenDocument文档转换器 JODConverter， 主要用它的jodconverter-2.2.2.jar包

3、程序源码：

• java转换器的程序代码：

  package correy.erp.util.converter;
  
  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;
  
  
  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;
  
       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("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
       */
       @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("E:/Program Files/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 {
                                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
       *
       * @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");
                 }
            }
       }
  }

• java文件上传并调用转换器对文件进行转换：

  String newFileName = null;
                     // 得到当前时间自1970年1月1日0时0秒开始流失的毫秒数，将这个毫秒数作为上传文件的文件名
                     long now = new Date().getTime();
  
                     // 得到保存上传文件的目录的真实路径
                     String path = ServletActionContext.getServletContext().getRealPath(uploadDir);
                    path=path.replace( '\\', '/' );
                    newFileName=now+agreement.getAgreeNum()+fileName.substring(fileName.lastIndexOf( "."));
  
                    File dir = new File(path);
                    dir.mkdirs();
  
                     //删除旧文件
                     if(!Stringer.isNullOrEmpty(agreement.getPath()))
                    {
                          File oldFile= new File(dir,agreement.getPath().substring(agreement.getPath().lastIndexOf("/")+1));
                           if(oldFile.exists())
                          {
                                oldFile.delete();
                          }
                    }
  
  
                    agreement.setPath(uploadDir+ "/"+newFileName);
                     agreementDao.saveAgreement(agreement);
  
                    BufferedOutputStream bos = null;
                    BufferedInputStream bis = null;
                     // 将上传的文件保存在本地目录
                    File newFile = null;
                     try {
                          FileInputStream fis = new FileInputStream(file);
                          bis = new BufferedInputStream(fis);
  
                          newFile = new File(dir, newFileName);
                          FileOutputStream fos = new FileOutputStream(newFile);
                          bos = new BufferedOutputStream(fos);
  
                           byte[] buf = new byte[1024];
                           int len = -1;
                           while ((len = bis.read(buf)) != -1) {
                                bos.write(buf, 0, len);
                          }
  
                    } catch (Exception e) {
                          e.printStackTrace();
                           throw new Exception();
                    } finally {
                           try {
                                 if (null != bis)
                                      bis.close();
                                 if (null != bos)
                                      bos.close();
                          } catch (Exception e) {
                                e.printStackTrace();
                                 throw new Exception();
                          }
                    }
                    DocConverter d = new DocConverter(converfilename);
              d.conver();

• JSP页面预览文档

  <%@ 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">
  <script type="text/javascript" src=" ${ctx}/js/flexpaper/jquery.js"></ script>
  <script type="text/javascript" src=" ${ctx}/js/flexpaper/flexpaper_flash.js"></script >
  <script type="text/javascript" src=" ${ctx}/js/flexpaper/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="text-align : center;width: 100%;" id= "c">
                <a id= "viewerPlaceHolder" style="width :820px;height:650px;" ></a>
  
                <script type="text/javascript" >
                     var width=$("#c" ).width();
                     var height=$(document).height();
                    $( "#viewerPlaceHolder").css("width" ,width*0.94+"px");
                    $( "#viewerPlaceHolder").css("height" ,height+"px");
                      $("#viewerPlaceHolder" ).css("padding-left",width*0.03+ "px");
                    $( "#viewerPlaceHolder").css("display" ,"block" );
                     var name="${param.name}" ;
                    name=name.substring(0, name.lastIndexOf( "."))+".swf" ;
                           var fp = new FlexPaperViewer(
                                       '${ctx}/swf/FlexPaperViewer',
                                       'viewerPlaceHolder', { config : {
                                       SwfFile : escape( '${ctx}/'+name),
                                       Scale : 1.0,
                                       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',
  
                                       ViewModeToolsVisible : true,
                                       ZoomToolsVisible : true,
                                       NavToolsVisible : true,
                                       CursorToolsVisible : true,
                                       SearchToolsVisible : true,
  
                                       localeChain: 'zh_CN'
                                       }});
                </script>
          </div>
  </body>
  </html>

4、运行效果：