poi 导出 excel

private void exportAssetExcel(HttpServletRequest request,
HttpServletResponse response) throws IOException {
String ogid = RequestUtil.getRequestBytes(request, "ogid").trim();
String objectgroupname = RequestUtil.getRequestBytes(request, "objectgroupname").trim();
String excelTitle = new String(objectgroupname.getBytes("ISO-8859-1"), "utf-8");
if(objectgroupname==null || objectgroupname==""){
objectgroupname = "备播单";
}
ObjectGroupRObjectMgr ogroMgr = new ObjectGroupRObjectMgr();
BaseDAO basedao = ogroMgr.getBasedao();
String strCondition= "select "
+ " ogro.new_assetname,"
+ " a.assetname,"
+ " m.filepath,"
+ " a.programtype,"
+ " a.videotype,"
+ " a.duration,"
+ " ogro.asset_price,"
+ " ogro.online_time,"
+ " ogro.asset_path"
+ " from "
+ " Objectgrouprobject ogro,"
+ " movie m,"
+ " asset a "
+ " where "
+ " ogro.objectid = a.assetid"
+ " and a.assetid = m.objectguid"
+ " and ogro.ogid = ?"
+ " order by ogro.ordernum asc";
List<Comparable> paramlist = new ArrayList();
paramlist.add(ogid);
// 关联objectgrouprobject asset查询
List<Object[]> list = basedao.SQLQuery(strCondition, paramlist);

//创建一个workbook 对应一个excel文件
HSSFWorkbook book = new HSSFWorkbook();
//创建工作簿，对应一个sheet
HSSFSheet sheet = book.createSheet(excelTitle);
sheet.setColumnWidth((short)0,(short)1000);
sheet.setColumnWidth((short)1,(short)4000);
sheet.setColumnWidth((short)2,(short)4000);
sheet.setColumnWidth((short)3,(short)10000);
sheet.setColumnWidth((short)4,(short)4000);
sheet.setColumnWidth((short)5,(short)4000);
sheet.setColumnWidth((short)6,(short)4000);
sheet.setColumnWidth((short)7,(short)2000);
sheet.setColumnWidth((short)8,(short)4000);
sheet.setColumnWidth((short)9,(short)10000);
sheet.setColumnWidth((short)10,(short)10000);
//设置格式
HSSFCellStyle style_1 = book.createCellStyle();
style_1.setAlignment(HSSFCellStyle.ALIGN_CENTER);
HSSFFont f  = book.createFont();
f.setFontHeightInPoints((short) 14);//字号
f.setBoldweight(HSSFFont.BOLDWEIGHT_NORMAL);//加粗
style_1.setFont(f);
//创建第一行 合并单元格
HSSFRow firstRow = sheet.createRow(0);
sheet.addMergedRegion(new Region(0, (short)0, 0, (short)10));
//组织第一行的数据
HSSFCell cell = firstRow.createCell((short) 0);
cell.setCellValue(excelTitle);
cell.setCellStyle(style_1);
//        cell.setCellType(HSSFCell.ENCODING_UTF_16);
//创建第二行 合并单元格
HSSFRow secondeRow = sheet.createRow(1);
sheet.addMergedRegion(new Region(1, (short)0, 1, (short)8));
//组织第二行的数据
Calendar c = Calendar.getInstance();
int year = c.get(Calendar.YEAR);
int month = c.get(Calendar.MONTH);
int day = c.get(Calendar.DAY_OF_MONTH);
String calendarStr = year + "年" + month + "月" + day + "日";
cell = secondeRow.createCell((short)0);
cell.setCellValue("制表时间: "+ calendarStr);
cell = secondeRow.createCell((short)9);
cell.setCellValue("制表部门：内容（集成）中心");
cell = secondeRow.createCell((short)10);
cell.setCellValue("节目单类型：上片单");
//组织第三行数据
HSSFRow thirdRow = sheet.createRow(2);
HSSFCellStyle style_2 = book.createCellStyle();
style_2.setAlignment(HSSFCellStyle.ALIGN_CENTER);
HSSFFont f2  = book.createFont();
f2.setBoldweight(HSSFFont.BOLDWEIGHT_NORMAL);//加粗
style_2.setFont(f2);
HSSFCell third_cell = thirdRow.createCell((short)0);
third_cell = thirdRow.createCell((short)1);
third_cell.setCellValue("节目名称");
third_cell.setCellStyle(style_2);
third_cell = thirdRow.createCell((short)2);
third_cell.setCellValue("正题名称");
third_cell.setCellStyle(style_2);
third_cell = thirdRow.createCell((short)3);
third_cell.setCellValue("文件名称");
third_cell.setCellStyle(style_2);
third_cell = thirdRow.createCell((short)4);
third_cell.setCellValue("节目类型");
third_cell.setCellStyle(style_2);
third_cell = thirdRow.createCell((short)5);
third_cell.setCellValue("高标清");
third_cell.setCellStyle(style_2);
third_cell = thirdRow.createCell((short)6);
third_cell.setCellValue("节目时长");
third_cell.setCellStyle(style_2);
third_cell = thirdRow.createCell((short)7);
third_cell.setCellValue("价格");
third_cell.setCellStyle(style_2);
third_cell = thirdRow.createCell((short)8);
third_cell.setCellValue("上片时间");
third_cell = thirdRow.createCell((short)9);
third_cell.setCellValue("节目路径");
third_cell.setCellStyle(style_2);
third_cell = thirdRow.createCell((short)10);
third_cell.setCellValue("备注");
third_cell.setCellStyle(style_2);
int listSize = 0;
if(list!=null && list.size()>0){
listSize = list.size();
HSSFCellStyle style_3 = book.createCellStyle();
style_3.setAlignment(HSSFCellStyle.ALIGN_CENTER);
style_3.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);
//组织节目数据
for(int i=0; i<listSize; i++){
Object[] obj = list.get(i);
HSSFRow row = sheet.createRow(i+3);
row.setHeight((short)800);
HSSFCell i_cell = row.createCell((short)0);
i_cell.setCellValue(""+(i+1));
i_cell.setCellStyle(style_3);
i_cell = row.createCell((short)1);
i_cell.setCellValue(String.valueOf(obj[0]).trim());
i_cell.setCellStyle(style_3);
i_cell = row.createCell((short)2);
i_cell.setCellValue(String.valueOf(obj[1]).trim());
i_cell.setCellStyle(style_3);
i_cell = row.createCell((short)3);
i_cell.setCellValue(String.valueOf(obj[2]).trim());
i_cell.setCellStyle(style_3);
i_cell = row.createCell((short)4);
i_cell.setCellValue(String.valueOf(obj[3]).trim());
i_cell.setCellStyle(style_3);
i_cell = row.createCell((short)5);
i_cell.setCellValue(String.valueOf(obj[4]).trim());
i_cell.setCellStyle(style_3);
i_cell = row.createCell((short)6);
i_cell.setCellValue(String.valueOf(obj[5]).trim());
i_cell.setCellStyle(style_3);
i_cell = row.createCell((short)7);
i_cell.setCellValue(String.valueOf(obj[6]).trim());
i_cell.setCellStyle(style_3);
i_cell = row.createCell((short)8);
i_cell.setCellValue(String.valueOf(obj[7]).trim());
i_cell.setCellStyle(style_3);
i_cell = row.createCell((short)9);
i_cell.setCellValue(String.valueOf(obj[8]).trim());
i_cell.setCellStyle(style_3);
i_cell = row.createCell((short)10);
i_cell.setCellValue("");
i_cell.setCellStyle(style_3);
}
}
HSSFRow row_one = sheet.createRow(3+listSize);
HSSFCell cell_one = row_one.createCell((short)0);
cell_one.setCellValue("编辑:");
cell_one = row_one.createCell((short)9);
cell_one.setCellValue("审核:");
sheet.addMergedRegion(new Region(3+listSize, (short)0, 3+listSize, (short)8));
sheet.addMergedRegion(new Region(3+listSize, (short)9, 3+listSize, (short)10));

HSSFRow row_two = sheet.createRow(4+listSize);
HSSFCell cell_two = row_two.createCell((short)0);
cell_two.setCellValue("制作:");
sheet.addMergedRegion(new Region(4+listSize, (short)0, 4+listSize, (short)10));

ByteArrayOutputStream os = new ByteArrayOutputStream();
try {
book.write(os);
} catch (IOException e) {
e.printStackTrace();
}
byte[] content = os.toByteArray();
InputStream is = new ByteArrayInputStream(content);
// 设置response参数，可以打开下载页面
response.reset();
response.setContentType("application/vnd.ms-excel;charset=utf-8");
String filename = objectgroupname + ".xls";
　　　　 filename = encodeFilename(filename, request);
response.setHeader("Content-Disposition", "attachment;filename="+ filename);
response.setCharacterEncoding("utf-8");
ServletOutputStream out = response.getOutputStream();
BufferedInputStream bis = null;
BufferedOutputStream bos = null;
try {
bis = new BufferedInputStream(is);
bos = new BufferedOutputStream(out);
byte[] buff = new byte[2048];
int bytesRead;
// Simple read/write loop.
while (-1 != (bytesRead = bis.read(buff, 0, buff.length))) {
bos.write(buff, 0, bytesRead);
}
} catch (final IOException e) {
throw e;
} finally {
if (bis != null)
bis.close();
if (bos != null)
bos.close();
}

}

public static String encodeFilename(String filename, HttpServletRequest request) {
/**
* 获取客户端浏览器和操作系统信息
* 在IE浏览器中得到的是：User-Agent=Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; Maxthon; Alexa Toolbar)
* 在Firefox中得到的是：User-Agent=Mozilla/5.0 (Windows; U; Windows NT 5.1; zh-CN; rv:1.7.10) Gecko/20050717 Firefox/1.0.6
*/
String agent = request.getHeader("USER-AGENT");
try {
if ((agent != null) && (-1 != agent.indexOf("MSIE"))) {
String newFileName = URLEncoder.encode(filename, "UTF-8");
newFileName = StringUtils.replace(newFileName, "+", "%20");
if (newFileName.length() > 150) {
newFileName = new String(filename.getBytes("GB2312"), "ISO8859-1");
newFileName = StringUtils.replace(newFileName, " ", "%20");
}
return newFileName;
}
if ((agent != null) && (-1 != agent.indexOf("Mozilla")))
return MimeUtility.encodeText(filename, "UTF-8", "B");

return filename;
} catch (Exception ex) {
return filename;
}
}

以上是java部分的代码， 导出按照workbook-->sheet-->row-->cell的大体流程走， 再加上格式设置， 加上值等等

前端需要弹出下载框，可以用：

window.open("objectgroup.do"+"?action=exportAssetExcel&ogid="+ogid+"&objectgroupname="+objectgroupname);

或者用form提交

jsp页面

<form action="exportExcel_program" method="post" id="exportExcel_program_form">
<input type="hidden" name="searchXML" id="searchXML"/>
</form>

js处理

$("#searchXML").val(searchXML);
$("#exportExcel_program_form").submit();

这里参数可能有中文，所以java部分要处理，可以参见上面java代码