easyui多行复杂表头数据导出

//点击导出按钮
function exportBtn(){
	// 把表单中的查询条件转为json对象
	var serachJson = $('#serach_from').serializeJson();
	window.location.href = "/nursing/exportExcel?query="+serachJson;
}

	// 工具方法，可以将指定的表单中的输入项目序列号为json数据
	$.fn.serializeJson = function() {
		var serializeObj = {};
		var array = this.serializeArray();
		$(array).each(
				function() {
					if (serializeObj[this.name]) {
						if ($.isArray(serializeObj[this.name])) {
							serializeObj[this.name].push(this.value);
						} else {
							serializeObj[this.name] = [
									serializeObj[this.name], this.value ];
						}
					} else {
						serializeObj[this.name] = this.value;
					}
				});
		return serializeObj;
	};

controller层调用实现导出的方法

	/**
	 * 导出 按年份月份统计养老院使用设备报表
	 */
	@RequestMapping(value = "/exportExcel", method = RequestMethod.GET)
	public String exportExcel(NsExcelQuery query,HttpServletResponse response) {
		String filename = "养老院使用设备.xls";
		String title = "养老院使用设备";

		List vos = nursingService.queryExExcel(query);
		try {
			ExcelBase.exportExcel(title,filename,vos,response);
		} catch (IOException e) {
			e.printStackTrace();
			logger.error("导出"+filename+"失败");
		}

		return "/admin/nsList";
	}

	@SuppressWarnings("resource")
	public static void exportExcel(String title, String filename, List data,
			HttpServletResponse response) throws IOException {
		OutputStream out = response.getOutputStream();// 取得输出流
		BufferedOutputStream bos = new BufferedOutputStream(out);//缓冲流
		response.reset();// 清空输出流
		response.setContentType("application/ms-excel;charset=GB2312");
		response.setHeader("Content-disposition",
				"attachment; filename=" + new String(filename.getBytes("GB2312"), "ISO8859-1") + ".xls");
		String[] str= {"","","1月","2月","3月","4月","5月","6月","7月","8月","9月","10月","11月","12月","合计"};
		// 声明一个工作薄
		try {
			HSSFWorkbook workbook = new HSSFWorkbook();
			// 首先检查数据看是否是正确的
			if (data == null || data.size() == 0 || title == null || out == null) {
				throw new Exception("传入的数据不对！");
			}
			// 创建一个sheet页
			HSSFSheet sheet = workbook.createSheet("养老院安装设备表格");
			// 设置表格默认列宽度为12个字节  
			sheet.setDefaultColumnWidth((short) 13); 
			
			sheet.addMergedRegion(new CellRangeAddress(0, 0, 0, str.length - 1));
			HSSFRow titleRow = sheet.createRow(0);
			HSSFCell titleCell = titleRow.createCell(0);
			titleCell.setCellValue(title);
			titleCell.setCellStyle(setTitleStyle(workbook, workbook.createCellStyle()));
			// 生成一个单元格样式  
			HSSFCellStyle cellStyle = workbook.createCellStyle();
			// 创建标题行
			HSSFRow headRow = sheet.createRow(1);
			
			// 设置这些样式  
            // 指定单元格垂直居中对齐    
			cellStyle.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER); 
			cellStyle.setFillForegroundColor(HSSFColor.GREEN.index);  
			cellStyle.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND);  
			cellStyle.setBorderBottom(HSSFCellStyle.BORDER_THIN);  
			cellStyle.setBorderLeft(HSSFCellStyle.BORDER_THIN);  
			cellStyle.setBorderRight(HSSFCellStyle.BORDER_THIN);  
			cellStyle.setBorderTop(HSSFCellStyle.BORDER_THIN);  
			cellStyle.setAlignment(HSSFCellStyle.ALIGN_CENTER);
			// 生成一个字体  
			HSSFFont font = workbook.createFont();  
			font.setColor(HSSFColor.WHITE.index);  
			font.setFontHeightInPoints((short) 12);  
			font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD); 
			
			cellStyle.setFont(font); 
			// 设置列头  
            HSSFCell cell0 = headRow.createCell(0);  
            cell0.setCellStyle(cellStyle);  
            cell0.setCellValue(new HSSFRichTextString("养老院名称"));
            HSSFCell cell1 = headRow.createCell(1);  
            cell1.setCellStyle(cellStyle);  
            cell1.setCellValue(new HSSFRichTextString("设备名称"));  
            HSSFCell cell2 = headRow.createCell(2);  
            cell2.setCellStyle(cellStyle);  
            cell2.setCellValue(new HSSFRichTextString("使用次数统计"));
            cell2.setCellStyle(cellStyle);
            
            HSSFRow headRow2 = sheet.createRow(2);
            //循环设置月份表头
            for(int i=2;i map = vo.getMap();
				if(map.get(MonthVo.January)!=null){
					dataRow.createCell(2).setCellValue(map.get(MonthVo.January));
				}
				if(map.get(MonthVo.February)!=null){
					dataRow.createCell(3).setCellValue(map.get(MonthVo.February));
				}
				if(map.get(MonthVo.March)!=null){
					dataRow.createCell(4).setCellValue(map.get(MonthVo.March));
				}
				if(map.get(MonthVo.April)!=null){
					dataRow.createCell(5).setCellValue(map.get(MonthVo.April));
				}
				if(map.get(MonthVo.May)!=null){
					dataRow.createCell(6).setCellValue(map.get(MonthVo.May));
				}
				if(map.get(MonthVo.June)!=null){
					dataRow.createCell(7).setCellValue(map.get(MonthVo.June));
				}
				if(map.get(MonthVo.July)!=null){
					dataRow.createCell(8).setCellValue(map.get(MonthVo.July));
				}
				if(map.get(MonthVo.August)!=null){
					dataRow.createCell(9).setCellValue(map.get(MonthVo.August));
				}
				if(map.get(MonthVo.September)!=null){
					dataRow.createCell(10).setCellValue(map.get(MonthVo.September));
				}
				if(map.get(MonthVo.October)!=null){
					dataRow.createCell(11).setCellValue(map.get(MonthVo.October));
				}
				if(map.get(MonthVo.November)!=null){
					dataRow.createCell(12).setCellValue(map.get(MonthVo.November));
				}
				if(map.get(MonthVo.December)!=null){
					dataRow.createCell(13).setCellValue(map.get(MonthVo.December));
				}
				if(vo.getSum()!=null){
					dataRow.createCell(14).setCellValue(vo.getSum());
				}
			}
			workbook.write(bos);
			//使用缓冲区的时候要注意刷新
			bos.flush();
		}catch(Exception e){
			e.printStackTrace();
		}finally{
			if (out != null)
				out.close();
			if (bos != null)
				//关闭缓冲区的对象,实际上是关闭与它关联的流对象最好放在finally执行
				bos.close();
		}
		
	}