java通过url在线预览Word、excel、ppt、pdf、txt文档____

1、javaurlWord、excel、ppt、pdf、txt分类：毕业设计的问题学习2011-04-0118:43阅读(273)评论(2)收藏举报在页面上显示各种文档中的内容。在servlet中的逻辑word：BufferedInputStreambis=null;URLurl=null;HttpURLConnectionhttpUrl=null;/建立链接url=newURL(urlReal);httpUrl=(HttpURLConnection)url.openConnection();/连接指定的资源httpUrl.connect();/获取网络输入流bis=newBufferedInpu

2、tStream(httpUrl.getInputStream();StringbodyText=null;WordExtractorex=newWordExtractor(bis);bodyText=ex.getText();response.getWriter().write(bodyText);excel：BufferedInputStreambis=null;URLurl=null;HttpURLConnectionhttpUrl=null;/建立链接url=newURL(urlReal);httpUrl=(HttpURLConnection)url.openConnection();/

3、连接指定的资源httpUrl.connect();/获取网络输入流bis=newBufferedInputStream(httpUrl.getInputStream();content=newStringBuffer();HSSFWorkbookworkbook=newHSSFWorkbook(bis);for(intnumSheets=0;numSheetsworkbook.getNumberOfSheets();numSheets+)HSSFSheetaSheet=workbook.getSheetAt(numSheets);/获得一个sheetcontent.append(/n);if(

4、null=aSheet)continue;for(introwNum=0;rowNum=aSheet.getLastRowNum();rowNum+)content.append(/n);HSSFRowaRow=aSheet.getRow(rowNum);if(null=aRow)continue;for(shortcellNum=0;cellNum=aRow.getLastCellNum();cellNum+)HSSFCellaCell=aRow.getCell(cellNum);if(null=aCell)continue;if(aCell.getCellType()=HSSFCell.C

5、ELL_TYPE_STRING)content.append(aCell.getRichStringCellValue().getString();elseif(aCell.getCellType()=HSSFCell.CELL_TYPE_NUMERIC)booleanb=HSSFDateUtil.isCellDateFormatted(aCell);if(b)Datedate=aCell.getDateCellValue();SimpleDateFormatdf=newSimpleDateFormat(yyyy-MM-dd);content.append(df.format(date);re

6、sponse.getWriter().write(content.toString();ppt：BufferedInputStreambis=null;URLurl=null;HttpURLConnectionhttpUrl=null;/建立链接url=newURL(urlReal);httpUrl=(HttpURLConnection)url.openConnection();/连接指定的资源httpUrl.connect();/获取网络输入流bis=newBufferedInputStream(httpUrl.getInputStream();StringBuffercontent=newStringBuffer();SlideShowss=newSlideShow(newHSLFSlideShow(bis);Slideslides=ss.getSlides