前提是匯入POI相關jar包

1.html

<button class="btn-search" onclick="exploreExcel()">匯出報表</button>

2.js

function exploreExcel () {
	var startTime = $("#input-start-time").val();
	var endTime = $("#input-end-time").val();
	var duleStatus = $("#select-status option:selected").val();
	var sourceType = $("#select-rog option:selected").val();
	
	var _a = $("<a target='_blank' ></a>").get(0);
	$(_a).attr("href", 'exploreEvents.do?' + "startTime=" + startTime +"&endTime=" + endTime + "&duleStatus=" + duleStatus + "&sourceType=" + sourceType);
	_a.click();
	
}
 

3.java後臺實現

protected boolean ExploreEventToExcel ( List<CEventInfoT> datas ,HttpServletResponse response) {

		
	String projectName = "歷史事件表";
		
	response.setContentType("application/msexcel;charset=UTF-8");
        String fileName;
        OutputStream os = null;
	try {
			fileName = "attachment; filename=" + URLEncoder.encode(projectName, "UTF-8") + System.currentTimeMillis() + ".xls";
			response.setHeader("Content-disposition", fileName);
		        
		    os = response.getOutputStream();
	} catch (Exception e1) {
			e1.printStackTrace();
	}
        
        HSSFWorkbook workbook ;
        int i = 0;
        try {
            // 新建工作薄和表單，並且初始化單元格大小
            workbook = new HSSFWorkbook();
            HSSFSheet sheet = workbook.createSheet("歷史事件表");
            HSSFRow row = null;
            sheet.addMergedRegion(new CellRangeAddress(0, 0, 0, 17));
            sheet.setDefaultRowHeightInPoints(15);
            sheet.setDefaultColumnWidth(10);
        //    sheet.createFreezePane(0, 1);// 凍結標題視窗
            
            // Sheet 頁自適應頁面大小
            PrintSetup ps = sheet.getPrintSetup();
            sheet.setAutobreaks(true);
            ps.setFitHeight((short) 1);
            ps.setFitWidth((short) 1);
            
            // 寫入標題行(title)，並設定標題行單元格的格式
            // 字型格式設定
            HSSFFont workFont = workbook.createFont();
            workFont.setFontName("等線");
            workFont.setFontHeightInPoints((short) 11);
            
            // 單元格格式設定
            HSSFCellStyle cellStyle = workbook.createCellStyle();
            cellStyle.setFillForegroundColor(HSSFColor.BLACK.index);
            cellStyle.setBorderBottom(HSSFCellStyle.BORDER_THIN);
            cellStyle.setBorderLeft(HSSFCellStyle.BORDER_THIN);
            cellStyle.setBorderRight(HSSFCellStyle.BORDER_THIN);
            cellStyle.setBorderTop(HSSFCellStyle.BORDER_THIN);
            
            cellStyle.setFillBackgroundColor(HSSFColor.GREY_25_PERCENT.index); // 背景色
            cellStyle.setAlignment(HSSFCellStyle.ALIGN_CENTER);// 居中或者靠左靠右
            
            cellStyle.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);//
            //設定資料格式
            HSSFDataFormat format = workbook.createDataFormat(); 
            cellStyle.setDataFormat(format.getFormat("@"));

            cellStyle.setFont(workFont);
            
            row = sheet.createRow(i);
            HSSFCell cellTitle = row.createCell(0);
            cellTitle.setCellStyle(cellStyle);
            cellTitle.setCellValue(projectName);
            HSSFCell cellTitle17 = row.createCell(17);
            cellTitle17.setCellStyle(cellStyle);
            row = sheet.createRow(++i);
            int rIndex = 0;
            String[] title = {"序號","事件時間", "事件地點", "事件型別", "求助來源", "事件狀態", " 救助人員"};
            HSSFCellStyle cellStyleTitle = workbook.createCellStyle();
            for (int j = 0; j < title.length ; j++) {
                HSSFCell cell = row.createCell(rIndex++);
                cellStyleTitle = cellStyle;
                cell.setCellStyle(cellStyleTitle);
                cell.setCellValue(title[j]);
            }
            // 寫入內行
            int size = datas == null ? 0 : datas.size();
            if(size > 0) {
                
                for(int k = 0; k < size && k < 65535; k++){
                    CEventInfoT e = datas.get(k);
                    row = sheet.createRow(++i);
                    
                    HSSFCell cell0 = row.createCell(0);
                    cell0.setCellType(HSSFCell.CELL_TYPE_STRING);
                    cell0.setCellStyle(cellStyle);
                    cell0.setCellValue(k + 1);
                    
                    HSSFCell cell1 = row.createCell(1);
                    cell1.setCellType(HSSFCell.CELL_TYPE_STRING);
                    cell1.setCellStyle(cellStyle);
                    cell1.setCellValue(e.getOccurDate());
                    
                    HSSFCell cell2 = row.createCell(2);
                    cell2.setCellType(HSSFCell.CELL_TYPE_STRING);
                    cell2.setCellStyle(cellStyle);
                    cell2.setCellValue(e.getAlarmAddress() == null ? "" : e.getAlarmAddress());
                    
                    HSSFCell cell3 = row.createCell(3);
                    cell3.setCellType(HSSFCell.CELL_TYPE_STRING);
                    cell3.setCellStyle(cellStyle);
                    cell3.setCellValue(e.getEventTypeValue() == null ?  "" : e.getEventTypeValue());
                    
                    HSSFCell cell4 = row.createCell(4);
                    cell4.setCellType(HSSFCell.CELL_TYPE_STRING);
                    cell4.setCellStyle(cellStyle);
                    cell4.setCellValue(e.getSourceType() == null ? "" : e.getSourceType());
                    
                    HSSFCell cell5 = row.createCell(5);
                    cell5.setCellType(HSSFCell.CELL_TYPE_STRING);
                    cell5.setCellStyle(cellStyle);
                    cell5.setCellValue(e.getDuleStatus() == null ? "" : e.getDuleStatus());
                    
                    HSSFCell cell6 = row.createCell(6);
                    cell6.setCellType(HSSFCell.CELL_TYPE_STRING);
                    cell6.setCellStyle(cellStyle);
                    cell6.setCellValue(e.getResponserName() == null ? "" : e.getResponserName());
                    
                }
            } 
            workbook.getSheetAt(0).setForceFormulaRecalculation(true);
            workbook.write(os);
            return true;
            
        } catch(Exception e) {
            e.printStackTrace();
            return false;
        }
	}