poi框架excel导出合龙列

poi框架excel导出合并列

HSSFRow row = sheet.createRow(i);
?????for (int j = 0; j < headerRow.size(); j++) {
??????HashMap map=(HashMap) headerRow.get(j);
?????? short rowspan=Short.valueOf( map.get("rowspan")+"");
?????? short rowend=(short)(rowstart+rowspan-1);
?????? HSSFCell cell = row.createCell((short)rowstart);
???????//导出前先设置，而且值设置在第一个框中
???????cell.setCellValue(new String(String.valueOf(map.get("value")).getBytes(),"UTF-8"));

?

cell.setEncoding(HSSFCell.ENCODING_UTF_16);//设置单元格编码防止乱码

?

?????? //四个参数分别是：起始行，起始列，结束行，结束列?
?????? sheet.addMergedRegion(new Region(colstart, rowstart, colend,rowend ));
????????????????????? // cell.setCellStyle(HSSFCellStyle.)
??????
??????
?????????????????????? rowstart=(short)(rowend+1);
????????????????????
?????}
?????? colstart=colend+1;
???????????? }