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poi导出excel合并单元格(包括列合并、行合并)

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1 工程所需jar包如下:
commons-codec-1.5.jar
commons-logging-1.1.jar
log4j-1.2.13.jar
junit-3.8.1.jar
poi-3.9-20121203.jar

2 Code:
	/**
	 * 导出设备信息Excel
	 * @param form 	    和 HTTP 请求相关的表格对象
	 * @param resources 信息资源对象
	 * @param locale    本地化对象
	 * @param session   HTTP 会话对象
	 * @param request   HTTP 请求对象
	 * @param response  HTTP 响应对象
	 * @return
	 */
	public String exportExcel(DynaBean form, MessageResources resources,
			Locale locale, HttpSession session, HttpServletRequest request,
			HttpServletResponse response) throws Exception{
		int iLanguage = (locale.getLanguage().indexOf("en")>=0)?0:1;
		response.reset();
		response.setContentType("application/vnd.ms-excel");
		response.setHeader("Content-Disposition","attachment;filename="+java.net.URLEncoder.encode(resources.getMessage(locale, "device.details")+".xls","UTF-8"));
		OutputStream sos = response.getOutputStream();
		List<DeviceVO> deviceList = dao.getAllDevice();
		HSSFWorkbook wb = new HSSFWorkbook();
		Map<String, CellStyle> styles = createStyles(wb);
		// 创建sheet页
		Sheet sheet = wb.createSheet("Sheet");
		PrintSetup printSetup = sheet.getPrintSetup();
		printSetup.setLandscape(true);
		sheet.setFitToPage(true);
		sheet.setHorizontallyCenter(true);
		/**
		*合并单元格的行或者列
		*/
		sheet.addMergedRegion(CellRangeAddress.valueOf("$F$1:$H$1"));
		sheet.addMergedRegion(CellRangeAddress.valueOf("$M$1:$P$1"));
		sheet.addMergedRegion(CellRangeAddress.valueOf("$Q$1:$S$1"));
		sheet.addMergedRegion(CellRangeAddress.valueOf("$A$1:$A$2"));
		sheet.addMergedRegion(CellRangeAddress.valueOf("$B$1:$B$2"));
		sheet.addMergedRegion(CellRangeAddress.valueOf("$C$1:$C$2"));
		sheet.addMergedRegion(CellRangeAddress.valueOf("$D$1:$D$2"));
		sheet.addMergedRegion(CellRangeAddress.valueOf("$E$1:$E$2"));
		sheet.addMergedRegion(CellRangeAddress.valueOf("$I$1:$I$2"));
		sheet.addMergedRegion(CellRangeAddress.valueOf("$J$1:$J$2"));
		sheet.addMergedRegion(CellRangeAddress.valueOf("$K$1:$K$2"));
		sheet.addMergedRegion(CellRangeAddress.valueOf("$L$1:$L$2"));
		sheet.addMergedRegion(CellRangeAddress.valueOf("$T$1:$T$2"));
		sheet.addMergedRegion(CellRangeAddress.valueOf("$U$1:$U$2"));
		sheet.addMergedRegion(CellRangeAddress.valueOf("$V$1:$V$2"));
		sheet.addMergedRegion(CellRangeAddress.valueOf("$W$1:$W$2"));
		sheet.addMergedRegion(CellRangeAddress.valueOf("$X$1:$X$2"));
		sheet.addMergedRegion(CellRangeAddress.valueOf("$Y$1:$Y$2"));
		sheet.addMergedRegion(CellRangeAddress.valueOf("$Z$1:$Z$2"));
		sheet.addMergedRegion(CellRangeAddress.valueOf("$AA$1:$AA$2"));
		sheet.addMergedRegion(CellRangeAddress.valueOf("$AB$1:$AB$2"));
		

		
		// 创建表头
		Row headerRow = sheet.createRow(0);
		headerRow.setHeightInPoints(30);
		Cell headerCell;
		
		headerCell = headerRow.createCell(0);
		headerCell.setCellValue(resources.getMessage(locale, "device.export.excel.number")); //设备编号
		headerCell.setCellStyle(styles.get("header"));

		headerCell = headerRow.createCell(1);
		headerCell.setCellValue(resources.getMessage(locale, "device.export.excel.qrcode")); //设备二维码
		headerCell.setCellStyle(styles.get("header"));

		headerCell = headerRow.createCell(2);
		headerCell.setCellValue(resources.getMessage(locale, "device.export.excel.customerbase")); //客户群
		headerCell.setCellStyle(styles.get("header"));

		headerCell = headerRow.createCell(3);
		headerCell.setCellValue(resources.getMessage(locale, "device.export.excel.customertype")); //客户类别
		headerCell.setCellStyle(styles.get("header"));

		headerCell = headerRow.createCell(4);
		headerCell.setCellValue(resources.getMessage(locale, "device.export.excel.customername")); //客户名称
		headerCell.setCellStyle(styles.get("header"));

		headerCell = headerRow.createCell(5);
		headerCell.setCellValue(resources.getMessage(locale, "device.export.excel.area")); //设备区域
		headerCell.setCellStyle(styles.get("header"));

		headerCell = headerRow.createCell(8);
		headerCell.setCellValue(resources.getMessage(locale, "device.export.excel.itemname")); //所属项目名称
		headerCell.setCellStyle(styles.get("header"));

		headerCell = headerRow.createCell(9);
		headerCell.setCellValue(resources.getMessage(locale, "device.category")); //设备类别
		headerCell.setCellStyle(styles.get("header"));

		headerCell = headerRow.createCell(10);
		headerCell.setCellValue(resources.getMessage(locale, "device.name")); //设备名称
		headerCell.setCellStyle(styles.get("header"));

		headerCell = headerRow.createCell(11);
		headerCell.setCellValue(resources.getMessage(locale, "device.no")); //设备信息编号
		headerCell.setCellStyle(styles.get("header"));

		headerCell = headerRow.createCell(12);
		headerCell.setCellValue(resources.getMessage(locale, "device.export.excel.baseinfomation")); //设备基本信息
		headerCell.setCellStyle(styles.get("header"));
		
		headerCell = headerRow.createCell(16);
		headerCell.setCellValue(resources.getMessage(locale, "device.location")); //设备位置
		headerCell.setCellStyle(styles.get("header"));
		
		headerCell = headerRow.createCell(19);
		headerCell.setCellValue(resources.getMessage(locale, "device.export.excel.enabledate")); //设备启用日期
		headerCell.setCellStyle(styles.get("header"));
		
		headerCell = headerRow.createCell(20);
		headerCell.setCellValue(resources.getMessage(locale, "device.export.excel.backendload")); //后端负载
		headerCell.setCellStyle(styles.get("header"));
		
		headerCell = headerRow.createCell(21);
		headerCell.setCellValue(resources.getMessage(locale, "device.export.excel.operationtips")); //操作提示
		headerCell.setCellStyle(styles.get("header"));
		
		headerCell = headerRow.createCell(22);
		headerCell.setCellValue(resources.getMessage(locale, "device.export.excel.maintenancepeople")); //维护责任人
		headerCell.setCellStyle(styles.get("header"));
		
		headerCell = headerRow.createCell(23);
		headerCell.setCellValue(resources.getMessage(locale, "device.export.excel.usetime")); //巡检时间
		headerCell.setCellStyle(styles.get("header"));
		
		headerCell = headerRow.createCell(24);
		headerCell.setCellValue(resources.getMessage(locale, "device.export.excel.intervaltime")); //巡检下台设备时间间隔
		headerCell.setCellStyle(styles.get("header"));
		
		headerCell = headerRow.createCell(25);
		headerCell.setCellValue(resources.getMessage(locale, "device.export.excel.patrolpath")); //巡检路径
		headerCell.setCellStyle(styles.get("header"));
		
		headerCell = headerRow.createCell(26);
		headerCell.setCellValue(resources.getMessage(locale, "device.export.excel.enable")); //是否启用巡检路径
		headerCell.setCellStyle(styles.get("header"));
		
		headerCell = headerRow.createCell(27);
		headerCell.setCellValue(resources.getMessage(locale, "device.export.excel.other")); //其他信息
		headerCell.setCellStyle(styles.get("header"));
		
		
		Row headerRowRegion = sheet.createRow(1);
		headerRowRegion.setHeightInPoints(15);
		Cell headerCellRegion;
		headerCellRegion = headerRowRegion.createCell(5);
		headerCellRegion.setCellValue(resources.getMessage(locale, "device.export.excel.province")); //省份
		headerCellRegion.setCellStyle(styles.get("header"));
		
		headerCellRegion = headerRowRegion.createCell(6);
		headerCellRegion.setCellValue(resources.getMessage(locale, "device.export.excel.region")); //市
		headerCellRegion.setCellStyle(styles.get("header"));
		
		headerCellRegion = headerRowRegion.createCell(7);
		headerCellRegion.setCellValue(resources.getMessage(locale, "device.export.excel.county")); //县/区
		headerCellRegion.setCellStyle(styles.get("header"));
		
		headerCellRegion = headerRowRegion.createCell(12);
		headerCellRegion.setCellValue(resources.getMessage(locale, "device.export.excel.brand")); //品牌
		headerCellRegion.setCellStyle(styles.get("header"));
		
		headerCellRegion = headerRowRegion.createCell(13);
		headerCellRegion.setCellValue(resources.getMessage(locale, "device.export.excel.model")); //型号
		headerCellRegion.setCellStyle(styles.get("header"));
		
		headerCellRegion = headerRowRegion.createCell(14);
		headerCellRegion.setCellValue(resources.getMessage(locale, "device.export.excel.capacity")); //容量
		headerCellRegion.setCellStyle(styles.get("header"));
		
		headerCellRegion = headerRowRegion.createCell(15);
		headerCellRegion.setCellValue(resources.getMessage(locale, "device.export.excel.systemtype")); //系统类型
		headerCellRegion.setCellStyle(styles.get("header"));
		
		headerCellRegion = headerRowRegion.createCell(16);
		headerCellRegion.setCellValue(resources.getMessage(locale, "device.build")); //楼号
		headerCellRegion.setCellStyle(styles.get("header"));
		
		headerCellRegion = headerRowRegion.createCell(17);
		headerCellRegion.setCellValue(resources.getMessage(locale, "device.floor")); //楼层
		headerCellRegion.setCellStyle(styles.get("header"));
		
		headerCellRegion = headerRowRegion.createCell(18);
		headerCellRegion.setCellValue(resources.getMessage(locale, "device.room")); //房间号
		headerCellRegion.setCellStyle(styles.get("header"));
		
		for(int i=0;i<deviceList.size();i++){
			DeviceVO device = deviceList.get(i);
			Cell rowCell;
			Row cellRow = sheet.createRow(i + 2);
			
			rowCell = cellRow.createCell(0);
			rowCell.setCellValue(device.getDeviceId());
			rowCell.setCellStyle(styles.get("cell"));
			
			rowCell = cellRow.createCell(1);
			rowCell.setCellValue(device.getQrcode());
			rowCell.setCellStyle(styles.get("cell"));
			
			rowCell = cellRow.createCell(2);
			//判断是否是中文
			if(iLanguage==1){
				rowCell.setCellValue(device.getItemId().getCustomerBase().substring(device.getItemId().getCustomerBase().indexOf(":")+1,device.getItemId().getCustomerBase().length()));
			}else if(iLanguage==0){ //判断是否是英文
				rowCell.setCellValue(device.getItemId().getCustomerBase().substring(0,device.getItemId().getCustomerBase().indexOf(":")));
			}
			rowCell.setCellStyle(styles.get("cell"));
			
			rowCell = cellRow.createCell(3);
			//判断是否是中文
			if(iLanguage==1){
				rowCell.setCellValue(device.getItemId().getCustomerType().substring(device.getItemId().getCustomerType().indexOf(":")+1,device.getItemId().getCustomerType().length()));
			}else if(iLanguage==0){ //判断是否是英文
				rowCell.setCellValue(device.getItemId().getCustomerType().substring(0,device.getItemId().getCustomerType().indexOf(":")));
			}
			rowCell.setCellStyle(styles.get("cell"));
			
			rowCell = cellRow.createCell(4);
			rowCell.setCellValue(device.getItemId().getCustomerName());
			rowCell.setCellStyle(styles.get("cell"));
			
			rowCell = cellRow.createCell(5);
			rowCell.setCellValue(device.getItemId().getProvince());
			rowCell.setCellStyle(styles.get("cell"));
			
			rowCell = cellRow.createCell(6);
			rowCell.setCellValue(device.getItemId().getCity());
			rowCell.setCellStyle(styles.get("cell"));
			
			rowCell = cellRow.createCell(7);
			rowCell.setCellValue(device.getItemId().getCounty());
			rowCell.setCellStyle(styles.get("cell"));
			
			rowCell = cellRow.createCell(8);
			//判断是否是中文
			if(iLanguage==1){
				rowCell.setCellValue(device.getItemId().getItemName());
			}else if(iLanguage==0){ //判断是否是英文
				rowCell.setCellValue(device.getItemId().getForShort());
			}
			rowCell.setCellStyle(styles.get("cell"));
			
			rowCell = cellRow.createCell(9);
			//判断是否是中文
			if(iLanguage==1){
				rowCell.setCellValue(device.getZequipId().getZequipGroup().getNameLoc());
			}else if(iLanguage==0){ //判断是否是英文
				rowCell.setCellValue(device.getZequipId().getZequipGroup().getNameEn());
			}
			rowCell.setCellStyle(styles.get("cell"));
			
			rowCell = cellRow.createCell(10);
			rowCell.setCellValue(device.getDeviceName());
			rowCell.setCellStyle(styles.get("cell"));
			
			rowCell = cellRow.createCell(11);
			rowCell.setCellValue(device.getDeviceNo());
			rowCell.setCellStyle(styles.get("cell"));
			
			rowCell = cellRow.createCell(12);
			rowCell.setCellValue(device.getDeviceBrand());
			rowCell.setCellStyle(styles.get("cell"));
			
			rowCell = cellRow.createCell(13);
			rowCell.setCellValue(device.getEquipDriveId().getModel());
			rowCell.setCellStyle(styles.get("cell"));
			
			rowCell = cellRow.createCell(14);
			rowCell.setCellValue(device.getDeviceCapacity());
			rowCell.setCellStyle(styles.get("cell"));
			
			rowCell = cellRow.createCell(15);
			rowCell.setCellValue(device.getSystemType());
			rowCell.setCellStyle(styles.get("cell"));
			
			rowCell = cellRow.createCell(16);
			rowCell.setCellValue(device.getStairsNo());
			rowCell.setCellStyle(styles.get("cell"));
			
			rowCell = cellRow.createCell(17);
			rowCell.setCellValue(device.getFloor());
			rowCell.setCellStyle(styles.get("cell"));
			
			rowCell = cellRow.createCell(18);
			rowCell.setCellValue(device.getRoomNo());
			rowCell.setCellStyle(styles.get("cell"));
			
			rowCell = cellRow.createCell(19);
			rowCell.setCellValue(device.getEnableDate()!=null ? new SimpleDateFormat("yyyy-MM-dd").format(device.getEnableDate()) : "");
			rowCell.setCellStyle(styles.get("cell"));
			
			rowCell = cellRow.createCell(20);
			rowCell.setCellValue(device.getBackendLoad());
			rowCell.setCellStyle(styles.get("cell"));
			
			rowCell = cellRow.createCell(21);
			rowCell.setCellValue(device.getOperationTips());
			rowCell.setCellStyle(styles.get("cell"));
			
			rowCell = cellRow.createCell(22);
			rowCell.setCellValue(device.getPersonId().getUserName());
			rowCell.setCellStyle(styles.get("cell"));
			
			rowCell = cellRow.createCell(23);
			rowCell.setCellValue(device.getInspecTime()+resources.getMessage(locale, "device.export.excel.minute"));
			rowCell.setCellStyle(styles.get("cell"));
			
			rowCell = cellRow.createCell(24);
			rowCell.setCellValue(device.getIntervalTime()+resources.getMessage(locale, "device.export.excel.minute"));
			rowCell.setCellStyle(styles.get("cell"));
			
			rowCell = cellRow.createCell(25);
			rowCell.setCellValue(device.getDevicePath());
			rowCell.setCellStyle(styles.get("cell"));
			
			rowCell = cellRow.createCell(26);
			rowCell.setCellValue(device.getValidityNr() == 0 ? resources.getMessage(locale, "mmc.soft.person.disabled") : resources.getMessage(locale, "mmc.soft.person.enable"));
			rowCell.setCellStyle(styles.get("cell"));
			
			rowCell = cellRow.createCell(27);
			rowCell.setCellValue(device.getOtherInfo() != null ? device.getOtherInfo() : "");
			rowCell.setCellStyle(styles.get("cell"));
		}
		wb.write(sos);
		sos.flush();
		sos.close();
		return null;
	}
	
	//excel样式
	private Map<String, CellStyle> createStyles(Workbook wb)
	{
		Map<String, CellStyle> styles = new HashMap<String, CellStyle>();
		CellStyle style;
		Font titleFont = wb.createFont();
		titleFont.setFontHeightInPoints((short) 18);
		titleFont.setBoldweight(Font.BOLDWEIGHT_BOLD);
		style = wb.createCellStyle();
		style.setAlignment(CellStyle.ALIGN_CENTER);
		style.setVerticalAlignment(CellStyle.VERTICAL_CENTER);
		style.setFont(titleFont);
		styles.put("title", style);

		style = wb.createCellStyle();
		style.setAlignment(CellStyle.ALIGN_CENTER);
		style.setVerticalAlignment(CellStyle.VERTICAL_CENTER);
		style.setWrapText(true);
		styles.put("header", style);

		style = wb.createCellStyle();
		style.setAlignment(CellStyle.ALIGN_CENTER);
		style.setVerticalAlignment(CellStyle.VERTICAL_CENTER);
		style.setWrapText(true);
		styles.put("cell", style);

		style = wb.createCellStyle();
		style.setAlignment(CellStyle.ALIGN_CENTER);
		style.setVerticalAlignment(CellStyle.VERTICAL_CENTER);
		style.setFillForegroundColor(IndexedColors.GREY_25_PERCENT.getIndex());
		style.setFillPattern(CellStyle.SOLID_FOREGROUND);
		style.setDataFormat(wb.createDataFormat().getFormat("0.00"));
		styles.put("formula", style);

		style = wb.createCellStyle();
		style.setAlignment(CellStyle.ALIGN_CENTER);
		style.setVerticalAlignment(CellStyle.VERTICAL_CENTER);
		style.setFillForegroundColor(IndexedColors.GREY_40_PERCENT.getIndex());
		style.setFillPattern(CellStyle.SOLID_FOREGROUND);
		style.setDataFormat(wb.createDataFormat().getFormat("0.00"));
		styles.put("formula_2", style);

		return styles;
	}
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评论
1 楼 贝塔ZQ 2017-01-04  
poi生成excel文件,之前也用过,就是感觉代码好多啊。后来查了查 ,网上很多插件也是不错的,pageoffice插件就不错,Sheet sheet = wb.openSheet("Sheet1");sheet.openTable("B4:B6").merge();
Cell cB4 = sheet.openCell("B4");
cB4.setValue("数值1");
//设置水平对齐方式
cB4.setHorizontalAlignment(XlHAlign.xlHAlignCenter);
//设置垂直对齐方式
cB4.setVerticalAlignment(XlVAlign.xlVAlignCenter); 可以看看的

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