导出Execel

//请求入口

@SuppressWarnings("serial")
@ParentPackage("default") //action请求
@Results( { @Result(name = BaseActionSupport.RELOAD, value = "workcalendarbb.action", type = ServletActionRedirectResult.class),
@Result(name = WorkCalendarBbAction.ARCHIVE_SORT_EXCEL, value = "stream", type = StreamResult.class, params = {
"contentType", "application/vnd.ms-excel", "inputName", "stream",
"contentDisposition", "attachment;filename="archiveFolder.xls"",
"bufferSize", "1024" }) }) //导出需要
//实体类 ToaWorkCalendarBb
public class WorkCalendarBbAction extends BaseActionSupport<ToaWorkCalendarBb>{

//导出execel
private InputStream stream;
public static final String ARCHIVE_SORT_EXCEL = "archiveSortExcel";

/实体类
private ToaWorkCalendarBb model = new ToaWorkCalendarBb();
/**
* 导出execel表格
* @return
*/
public String importExcel(){
try {
ToaWorkCalendarBb model=new ToaWorkCalendarBb();
SimpleDateFormat st = new SimpleDateFormat(
"yyyy");

if(models.getCaltype1Id()!=null&&!"null".equals(models.getCaltype1Id())){
if(!"null".equals(models.getCaltype1Id())){
model.setCaltype1Id(models.getCaltype1Id());
}
}
//开始时间
if(models.getCalStartTime()!=null&&!"".equals(models.getCalStartTime())){
model.setCalStartTime(models.getCalStartTime());
}
//结束时间
if(models.getCalEndTime()!=null&&!"".equals(models.getCalEndTime())){
model.setCalEndTime(models.getCalEndTime());
}


// 导出Excel数据流.
stream = manager.searchExcel(model);
} catch (Exception e) {
e.printStackTrace();
}
return ARCHIVE_SORT_EXCEL;
}

}

具体方法

/***
* 导出execel表格
* @param model
* @return
* @throws DAOException
* @throws ParseException
*/
public InputStream searchExcel(ToaWorkCalendarBb model)throws DAOException, ParseException{
//拼写表头
HSSFWorkbook wb = new HSSFWorkbook();
HSSFRow row;
HSSFCell cell;
HSSFSheet sheet = wb.createSheet("sheet1");
row = sheet.createRow(0);
cell = row.createCell((short) 0);
int m=0;
//row = sheet.createRow(0);
HSSFCellStyle cellStyle= wb.createCellStyle();
HSSFFont font = wb.createFont();
sheet.setColumnWidth((short)m,(short)5000);
cell = row.createCell((short) m++);
/** 列名
* 横向
* **/
cell.setCellValue("填报人");
cellStyle= wb.createCellStyle();
cellStyle.setAlignment(HSSFCellStyle.ALIGN_CENTER);//水平对齐
cellStyle.setBorderBottom(HSSFCellStyle.BORDER_THIN); //下边框
cellStyle.setBorderLeft(HSSFCellStyle.BORDER_THIN);//左边框
cellStyle.setBorderTop(HSSFCellStyle.BORDER_THIN);//上边框
cellStyle.setBorderRight(HSSFCellStyle.BORDER_THIN);//右边框
font = wb.createFont();
font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);//加粗
cellStyle.setFont(font);
cell.setCellStyle(cellStyle);

cell = row.createCell((short) m++);
sheet.setColumnWidth((short)m,(short)5000);
cell.setCellValue("填报处室");
cellStyle= wb.createCellStyle();
cellStyle.setAlignment(HSSFCellStyle.ALIGN_CENTER);//水平对齐
cellStyle.setBorderBottom(HSSFCellStyle.BORDER_THIN); //下边框
cellStyle.setBorderLeft(HSSFCellStyle.BORDER_THIN);//左边框
cellStyle.setBorderTop(HSSFCellStyle.BORDER_THIN);//上边框
cellStyle.setBorderRight(HSSFCellStyle.BORDER_THIN);//右边框
font = wb.createFont();
font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);//加粗
cellStyle.setFont(font);
cell.setCellStyle(cellStyle);

sheet.setColumnWidth((short)m,(short)5000);
cell = row.createCell((short) m++);
cell.setCellValue("日志分类");
cellStyle= wb.createCellStyle();
cellStyle.setAlignment(HSSFCellStyle.ALIGN_CENTER);//水平对齐
cellStyle.setBorderBottom(HSSFCellStyle.BORDER_THIN); //下边框
cellStyle.setBorderLeft(HSSFCellStyle.BORDER_THIN);//左边框
cellStyle.setBorderTop(HSSFCellStyle.BORDER_THIN);//上边框
cellStyle.setBorderRight(HSSFCellStyle.BORDER_THIN);//右边框
font = wb.createFont();
font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);//加粗
cellStyle.setFont(font);
cell.setCellStyle(cellStyle);

sheet.setColumnWidth((short)m,(short)5000);
cell = row.createCell((short) m++);
cell.setCellValue("日志条数");
cellStyle= wb.createCellStyle();
cellStyle.setAlignment(HSSFCellStyle.ALIGN_CENTER);//水平对齐
cellStyle.setBorderBottom(HSSFCellStyle.BORDER_THIN); //下边框
cellStyle.setBorderLeft(HSSFCellStyle.BORDER_THIN);//左边框
cellStyle.setBorderTop(HSSFCellStyle.BORDER_THIN);//上边框
cellStyle.setBorderRight(HSSFCellStyle.BORDER_THIN);//右边框
font = wb.createFont();
font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);//加粗
cellStyle.setFont(font);
cell.setCellStyle(cellStyle);

sheet.setColumnWidth((short)m,(short)5000);
cell = row.createCell((short) m++);
cell.setCellValue("总时长");
cellStyle= wb.createCellStyle();
cellStyle.setAlignment(HSSFCellStyle.ALIGN_CENTER);//水平对齐
cellStyle.setBorderBottom(HSSFCellStyle.BORDER_THIN); //下边框
cellStyle.setBorderLeft(HSSFCellStyle.BORDER_THIN);//左边框
cellStyle.setBorderTop(HSSFCellStyle.BORDER_THIN);//上边框
cellStyle.setBorderRight(HSSFCellStyle.BORDER_THIN);//右边框
font = wb.createFont();
font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);//加粗
cellStyle.setFont(font);
cell.setCellStyle(cellStyle);

sheet.setColumnWidth((short)m,(short)5000);
cell = row.createCell((short) m++);
cell.setCellValue("其中加班时间");
cellStyle= wb.createCellStyle();
cellStyle.setAlignment(HSSFCellStyle.ALIGN_CENTER);//水平对齐
cellStyle.setBorderBottom(HSSFCellStyle.BORDER_THIN); //下边框
cellStyle.setBorderLeft(HSSFCellStyle.BORDER_THIN);//左边框
cellStyle.setBorderTop(HSSFCellStyle.BORDER_THIN);//上边框
cellStyle.setBorderRight(HSSFCellStyle.BORDER_THIN);//右边框
font = wb.createFont();
font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);//加粗
cellStyle.setFont(font);
cell.setCellStyle(cellStyle);

sheet.setColumnWidth((short)m,(short)5000);
cell = row.createCell((short) m++);
cell.setCellValue("其中出差时间");
cellStyle= wb.createCellStyle();
cellStyle.setAlignment(HSSFCellStyle.ALIGN_CENTER);//水平对齐
cellStyle.setBorderBottom(HSSFCellStyle.BORDER_THIN); //下边框
cellStyle.setBorderLeft(HSSFCellStyle.BORDER_THIN);//左边框
cellStyle.setBorderTop(HSSFCellStyle.BORDER_THIN);//上边框
cellStyle.setBorderRight(HSSFCellStyle.BORDER_THIN);//右边框
font = wb.createFont();
font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);//加粗
cellStyle.setFont(font);
cell.setCellStyle(cellStyle);

sheet.setColumnWidth((short)m,(short)5000);
cell = row.createCell((short) m++);
cell.setCellValue("活动地点");
cellStyle= wb.createCellStyle();
cellStyle.setAlignment(HSSFCellStyle.ALIGN_CENTER);//水平对齐
cellStyle.setBorderBottom(HSSFCellStyle.BORDER_THIN); //下边框
cellStyle.setBorderLeft(HSSFCellStyle.BORDER_THIN);//左边框
cellStyle.setBorderTop(HSSFCellStyle.BORDER_THIN);//上边框
cellStyle.setBorderRight(HSSFCellStyle.BORDER_THIN);//右边框
font = wb.createFont();
font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);//加粗
cellStyle.setFont(font);
cell.setCellStyle(cellStyle);

/** 表头拼写完成
* 查询数据
* for循环放进去
* **/


//获取数据,不是拼写的数据,只是从数据库差所有
List<ToaWorkCalendarBb> list = search(model);//获取满足条件的ToaArchiveFolder对象
/**
* 遍历listtt
* 放进execel表格
*/
for (int i = 0; i < list.size()+0; ++i)
{
ToaWorkCalendarBb folder = list.get(i);
SimpleDateFormat st = new SimpleDateFormat(
"yyyy");
row = sheet.createRow(i + 1);

int j=0;
/**
* 字段对应的位置
* 横向 放值
*/
//填报人
cell = row.createCell((short) j++);
cell.setCellValue(folder.getCalUserName());
cellStyle= wb.createCellStyle();
cellStyle.setAlignment(HSSFCellStyle.ALIGN_CENTER);//水平对齐
cellStyle.setBorderBottom(HSSFCellStyle.BORDER_THIN); //下边框
cellStyle.setBorderLeft(HSSFCellStyle.BORDER_THIN);//左边框
cellStyle.setBorderTop(HSSFCellStyle.BORDER_THIN);//上边框
cellStyle.setBorderRight(HSSFCellStyle.BORDER_THIN);//右边框
cell.setCellStyle(cellStyle);

//填报处室
cell = row.createCell((short) j++);
cell.setCellValue(folder.getOrgName());
cellStyle= wb.createCellStyle();
cellStyle.setBorderBottom(HSSFCellStyle.BORDER_THIN); //下边框
cellStyle.setBorderLeft(HSSFCellStyle.BORDER_THIN);//左边框
cellStyle.setBorderTop(HSSFCellStyle.BORDER_THIN);//上边框
cellStyle.setBorderRight(HSSFCellStyle.BORDER_THIN);//右边框
cell.setCellStyle(cellStyle);

//日志分类
cell = row.createCell((short) j++);
// cell.setCellValue(st.format(folder.getBsstripEndTime()));
cell.setCellValue(folder.getCaltype1Idname());
cellStyle= wb.createCellStyle();
cellStyle.setAlignment(HSSFCellStyle.ALIGN_CENTER);//水平对齐
cellStyle.setBorderBottom(HSSFCellStyle.BORDER_THIN); //下边框
cellStyle.setBorderLeft(HSSFCellStyle.BORDER_THIN);//左边框
cellStyle.setBorderTop(HSSFCellStyle.BORDER_THIN);//上边框
cellStyle.setBorderRight(HSSFCellStyle.BORDER_THIN);//右边框
cell.setCellStyle(cellStyle);



//日志条数
cell = row.createCell((short) j++);
cell.setCellValue(folder.getJournalTotal());
cellStyle= wb.createCellStyle();
cellStyle.setBorderBottom(HSSFCellStyle.BORDER_THIN); //下边框
cellStyle.setBorderLeft(HSSFCellStyle.BORDER_THIN);//左边框
cellStyle.setBorderTop(HSSFCellStyle.BORDER_THIN);//上边框
cellStyle.setBorderRight(HSSFCellStyle.BORDER_THIN);//右边框
cell.setCellStyle(cellStyle);

//总时长
cell = row.createCell((short) j++);
cell.setCellValue(folder.getTimeTotal());
cellStyle= wb.createCellStyle();
cellStyle.setBorderBottom(HSSFCellStyle.BORDER_THIN); //下边框
cellStyle.setBorderLeft(HSSFCellStyle.BORDER_THIN);//左边框
cellStyle.setBorderTop(HSSFCellStyle.BORDER_THIN);//上边框
cellStyle.setBorderRight(HSSFCellStyle.BORDER_THIN);//右边框
cell.setCellStyle(cellStyle);

//其中加班时长
cell = row.createCell((short) j++);
cell.setCellValue(folder.getOverTime());
cellStyle= wb.createCellStyle();
cellStyle.setBorderBottom(HSSFCellStyle.BORDER_THIN); //下边框
cellStyle.setBorderLeft(HSSFCellStyle.BORDER_THIN);//左边框
cellStyle.setBorderTop(HSSFCellStyle.BORDER_THIN);//上边框
cellStyle.setBorderRight(HSSFCellStyle.BORDER_THIN);//右边框
cell.setCellStyle(cellStyle);

//其中出差时长
cell = row.createCell((short) j++);
cell.setCellValue(folder.getTravelTime());
cellStyle= wb.createCellStyle();
cellStyle.setBorderBottom(HSSFCellStyle.BORDER_THIN); //下边框
cellStyle.setBorderLeft(HSSFCellStyle.BORDER_THIN);//左边框
cellStyle.setBorderTop(HSSFCellStyle.BORDER_THIN);//上边框
cellStyle.setBorderRight(HSSFCellStyle.BORDER_THIN);//右边框
cell.setCellStyle(cellStyle);

//活动地点
cell = row.createCell((short) j++);
cell.setCellValue(folder.getActiveSite());
cellStyle= wb.createCellStyle();
cellStyle.setBorderBottom(HSSFCellStyle.BORDER_THIN); //下边框
cellStyle.setBorderLeft(HSSFCellStyle.BORDER_THIN);//左边框
cellStyle.setBorderTop(HSSFCellStyle.BORDER_THIN);//上边框
cellStyle.setBorderRight(HSSFCellStyle.BORDER_THIN);//右边框
cell.setCellStyle(cellStyle);
}
/** 放值结束 **/
ByteArrayOutputStream os = new ByteArrayOutputStream();
try{
wb.write(os);
}catch (IOException e){
e.printStackTrace();
}
byte[] content = os.toByteArray();
InputStream is = new ByteArrayInputStream(content);
return is;
}

【推广】 免费学中医，健康全家人
原文地址：https://www.cnblogs.com/wusx/p/5384024.html