这篇文章主要介绍了jsp导出excel并支持分sheet导出的方法,涉及Java针对excel操作的相关技巧,具有一定参考借鉴价值,需要的朋友可以参考下
本文实例讲述了jsp导出excel并支持分sheet导出的方法。分享给大家供大家参考,具体如下:
- public DownloadFile exportToExcel() throws Exception{
- String config_value = systemConfigService.getConfigValueByKey("Export.Xls");
- logger.info("获取的导出类型为execl表格"+",每页sheet导出的行数为:"+config_value+"行-------------------");
- File file = new File(new SimpleDateFormat("yyyy-MM-dd").format(new Date())+".xls");
- WritableWorkbook wbook = null ; WritableSheet wsheet =null;
- wbook = Workbook.createWorkbook(file); //建立excel文件
- long startTime = System.currentTimeMillis();
- try {
- ExportToExcelSearchCondition condittion = ((ExportToExcelSearchCondition) ServletContext.currentSession().getAttribute("condittion"));
- List<ContentToExcel> cte = new ArrayList<ContentToExcel>();
- if(condittion == null){
- throw new Exception("session获取查询条件失败");
- }else{
- //根据条件查询需要导出的数据
- cte = category2ContentDAO.searchByCondition(condittion.getCategoryId(), condittion.getHSDFlag(),
- condittion.getExternalContentId(),condittion.getContentName(),condittion.getContentId(), condittion.getSystemId(), condittion.getState(),
- condittion.getCpId(),condittion.getContentType(),condittion.getBeforemodifyTime(),condittion.getAftermodifyTime());
- }
- logger.info("开始导出excel表格--");
- if(StringUtils.isNotBlank(config_value)){
- int value = NumberUtils.toInt(config_value);
- if( cte !=null && cte.size()>0 ){
- int k = 0;//分sheet的个数
- int i = 0;//用于循环Excel的行号
- Iterator<ContentToExcel> it = cte.iterator();
- Map<String,String> contentidAndContentTypeMap = new HashMap<String,String>();
- Map<String,String> contentIdAndDurationMap= new HashMap<String,String>();
- for (ContentToExcel contentToExcel : cte) {
- contentidAndContentTypeMap.put(contentToExcel.getContentId(), contentToExcel.getContentType());
- }
- //计算时长
- contentIdAndDurationMap = category2ContentDAO.getDurationByContentIdMap(contentidAndContentTypeMap);
- /**
- * 1)采用iterator迭代器进行迭代,与for循环相比可优化迭代效率。
- * 2)大量数据影响效率,求大数据量的解决办法。
- * add by guohua.yuan 2013-06-08
- */
- while(it.hasNext()){
- ContentToExcel contentToExcel = it.next();
- if( i % value == 0){
- wsheet = wbook.createSheet("节目单导出("+(int)(i/value+1)+")", (int)(i/value+1)); //工作表名称
- //设置Excel字体
- WritableFont wfont = new WritableFont(WritableFont.ARIAL, 10, WritableFont.BOLD, false, jxl.format.UnderlineStyle.NO_UNDERLINE, jxl.format.Colour.BLACK);
- WritableCellFormat titleFormat = new WritableCellFormat(wfont);
- String[] title = { "标识","名称", "类型", "码流分档", "时长","快编人员" ,"初审人员","复审人员","终审人员","最后更新时间","内容创建时间","入库时间","状态"};
- //设置Excel表头
- for (int j = 0; j < title.length; j++) {
- Label excelTitle = new Label(j, 0, title[j], titleFormat);
- wsheet.addCell(excelTitle);
- }
- k = k+1;
- }
- wsheet.addCell(new Label(0, i+1 -value*(k-1), contentToExcel.getContentId()));
- wsheet.addCell(new Label(1, i+1 - value*(k-1), contentToExcel.getContentName()));
- if(contentToExcel.getContentType().equals("Serie")){
- wsheet.addCell(new Label(2, i+1 - value*(k-1), "电视剧单集"));
- }else if(contentToExcel.getContentType().equals("Series")){
- wsheet.addCell(new Label(2, i+1 - value*(k-1), "连续剧"));
- }else if(contentToExcel.getContentType().equals("Movie")){
- wsheet.addCell(new Label(2, i+1 - value*(k-1), "电影"));
- }
- if(contentToExcel.getHSDFlag() == 1){
- wsheet.addCell(new Label(3, i+1 - value*(k-1), "标清"));
- }else if(contentToExcel.getHSDFlag() == 2){
- wsheet.addCell(new Label(3, i+1 -value*(k-1), "高清"));
- }else if(contentToExcel.getHSDFlag() == 3){
- wsheet.addCell(new Label(3, i+1 - value*(k-1), "超高清"));
- }
- //添加时长
- wsheet.addCell(new Label(4, i+1 - value*(k-1),contentIdAndDurationMap.get(contentToExcel.getContentId())));
- wsheet.addCell(new Label(5, i+1 - value*(k-1), contentToExcel.getKbPersonner()));
- wsheet.addCell(new Label(6, i+1 - value*(k-1), contentToExcel.getCsPersonner()));
- wsheet.addCell(new Label(7, i+1 - value*(k-1), contentToExcel.getFsPersonner()));
- wsheet.addCell(new Label(8, i+1 - value*(k-1), contentToExcel.getZsPersonner()));
- if(contentToExcel.getModifyTime()==null){
- wsheet.addCell(new Label(9, i+1 - value*(k-1), ""));
- }else{
- wsheet.addCell(new Label(9, i+1 - value*(k-1), new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(contentToExcel.getModifyTime())));
- }
- if(contentToExcel.getCreateTime() == null){
- wsheet.addCell(new Label(10, i+1 - value*(k-1), ""));
- }else{
- wsheet.addCell(new Label(10, i+1 - value*(k-1), new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(contentToExcel.getCreateTime())));
- }
- if(contentToExcel.getInstorageTime() ==null){
- wsheet.addCell(new Label(11,i+1 - value*(k-1),""));
- }else{
- wsheet.addCell(new Label(11,i+1 - value*(k-1),new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(contentToExcel.getInstorageTime())));
- }
- if(StringUtils.equals(contentToExcel.getStatus(), "1500")){
- wsheet.addCell(new Label(12, i+1 - value*(k-1), "成品就绪"));
- }else if(StringUtils.equals(contentToExcel.getStatus(), "1700")){
- wsheet.addCell(new Label(12, i+1 - value*(k-1), "发布成功 "));
- }else if(StringUtils.equals(contentToExcel.getStatus(), "1800")){
- wsheet.addCell(new Label(12, i+1 - value*(k-1), "发布失败"));
- }else if(StringUtils.equals(contentToExcel.getStatus(), "1901")){
- wsheet.addCell(new Label(12, i+1 - value*(k-1), "发布中"));
- }
- i++;
- }
- wbook.write();//写入文件
- }else{
- throw new Exception("没有数据可导");
- }
- }else{
- throw new Exception("请检查系统配置管理是否配置导出类型的数据");
- }
- } catch (Exception e) {
- throw new Exception(e);
- }finally{
- if(wbook!=null){
- wbook.close();
- }
- }
- logger.info("导出excel耗时:"+(System.currentTimeMillis() - startTime)+"ms");
- ServletContext.currentSession().removeAttribute("condittion");
- return new DownloadFile(file.getName()).readFrom(file);
- }
希望本文所述对大家jsp程序设计有所帮助。
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