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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。 |
匿名
发表于 2022-9-10 14:07:38
