1.此处代码是把office文档转换成pdf的工具类，在BS架构的产品中，我们可以使用基于JS的pdf插件显示pdf文档，但是前提IE需要按照adobe的pdf软件，对于非IE不用安装。
2.可以基于flexPager插件显示文档，但是也需要把office转换成swf的文件才可以，实现需要完成转换。
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  1 import java.io.File;

 import com.jacob.activeX.ActiveXComponent;

 import com.jacob.com.Dispatch;

 public class OfficeToPdfTools {

     private static final int wdFormatPDF = 17;

     private static final int xlsFormatPDF = 0;

     private static final int pptFormatPDF = 32;

     private static final int msoTrue = -1;

     private static final int msofalse = 0;

     public static boolean convert2PDF(String inputFile, String pdfFile) {

         String suffix = getFileSufix(inputFile);

         File file = new File(inputFile);

         if (!file.exists()) {

             System.out.println("文件不存在！");

             return false;

         }

         if (suffix.equals("pdf")) {

             System.out.println("PDF not need to convert!");

             return false;

         }

         if (suffix.equals("doc") || suffix.equals("docx")) {

             return word2PDF(inputFile, pdfFile);

         } else if (suffix.equals("ppt") || suffix.equals("pptx")) {

             return ppt2PDF(inputFile, pdfFile);

         } else if (suffix.equals("xls") || suffix.equals("xlsx")) {

             return excel2PDF(inputFile, pdfFile);

         } else {

             System.out.println("文件格式不支持转换!");

             return false;

         }

     }

     private static String getFileSufix(String fileName) {

         int splitIndex = fileName.lastIndexOf(".");

         return fileName.substring(splitIndex + 1);

     }

     private static boolean word2PDF(String inputFile, String pdfFile) {

         try {

             ActiveXComponent app = new ActiveXComponent("Word.Application");

             app.setProperty("Visible", false);

             Dispatch docs = app.getProperty("Documents").toDispatch();

             Dispatch doc = Dispatch.call(docs, "Open", inputFile, false, true)

                     .toDispatch();

             File tofile = new File(pdfFile);

             if (tofile.exists()) {

                 tofile.delete();

             }

             Dispatch.call(doc, "ExportAsFixedFormat", pdfFile, wdFormatPDF

                     );

             Dispatch.call(doc, "Close", false);

             app.invoke("Quit", 0);

             return true;

         } catch (Exception e) {

             return false;

         }

     }

     private static boolean excel2PDF(String inputFile, String pdfFile) {

         try {

             ActiveXComponent app = new ActiveXComponent("Excel.Application");

             app.setProperty("Visible", false);

             Dispatch excels = app.getProperty("Workbooks").toDispatch();

             Dispatch excel = Dispatch.call(excels, "Open", inputFile, false,

                     true).toDispatch();

             File tofile = new File(pdfFile);

             if (tofile.exists()) {

                 tofile.delete();

             }

             Dispatch.call(excel, "ExportAsFixedFormat", xlsFormatPDF, pdfFile);

             Dispatch.call(excel, "Close", false);

             app.invoke("Quit");

             return true;

         } catch (Exception e) {

             return false;

         }

     }

     private static boolean ppt2PDF(String inputFile, String pdfFile) {

         try {

             ActiveXComponent app = new ActiveXComponent(

                     "PowerPoint.Application");

             Dispatch ppts = app.getProperty("Presentations").toDispatch();

             Dispatch ppt = Dispatch.call(ppts, "Open", inputFile, true,// ReadOnly

                     true,// Untitled指定文件是否有标题

                     false// WithWindow指定文件是否可见

                     ).toDispatch();

             File tofile = new File(pdfFile);

             if (tofile.exists()) {

                 tofile.delete();

             }

             Dispatch.call(ppt, "SaveAs", pdfFile, pptFormatPDF);

             Dispatch.call(ppt, "Close");

             app.invoke("Quit");

             return true;

         } catch (Exception e) {

             return false;

         }

     }

     public static void main(String[] args) {

         //OfficeToPdfTools.convert2PDF("c:\\ppt.pptx", "c:\\ppt.pdf");

         OfficeToPdfTools.convert2PDF("c:\\excel.xls", "c:\\excel.pdf");

         //OfficeToPdfTools.convert2PDF("c:\\word.docx", "c:\\word.pdf");

     }