java生成excel文件

   首先下載jexcelapi_2_6_12.tar.gz，解壓后將里面的jxl.jar復制到WEB-INF/lib目錄下面    
　　　　 String filePath = request.getParameter("filePath");filePath=filePath.replaceAll("\\\\", "/");FileOutputStream os = new FileOutputStream(new File(filePath));//創建工作薄WritableWorkbook workbook = Workbook.createWorkbook(os);//創建新的一頁WritableSheet sheet = workbook.createSheet("First Sheet",0);//創建要顯示的內容,創建一個單元格，第一個參數為列坐標，第二個參數為行坐標，第三個參數為內容try{ResultSet rs = null;SQLBean dbMsg = new SQLBean();dbMsg.getConncetion();dbMsg.getStatement();String sql = request.getParameter("sql");rs = dbMsg.getResultSet(sql);Label tmp = new Label(0,0,"園類型");sheet.addCell(tmp);tmp = new Label(1,0,"樓標號");sheet.addCell(tmp);tmp = new Label(2,0,"用戶名");sheet.addCell(tmp);tmp = new Label(3,0,"聯系方式");sheet.addCell(tmp);tmp = new Label(4,0,"訂餐類型");sheet.addCell(tmp);tmp = new Label(5,0,"訂餐名稱");sheet.addCell(tmp);tmp = new Label(6,0,"訂餐份數");sheet.addCell(tmp);tmp = new Label(7,0,"支付總金額");sheet.addCell(tmp);tmp = new Label(8,0,"付款方式");sheet.addCell(tmp);tmp = new Label(9,0,"訂單時間");sheet.addCell(tmp);int row = 0;while(rs.next()){++row;for(int i=1; i<=10; ++i){tmp = new Label(i-1,row, rs.getString(i));sheet.addCell(tmp);}}} catch (Exception e){out.println("數據生成錯誤!");} finally{//把創建的內容寫入到輸出流中，并關閉輸出流
            workbook.write();workbook.close();os.close();}

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