SpringMVC列表数据导出

页面上怎么写?-----加上行内点击事件

导出数据

Js函数:

	function exportRegInfo(){
		var id = getUrlParams("id");
		var _url='/thoughtism/activityReg/getRegListExcel.json?id='+id+"&name="+name;
    	window.open(_url);
	}

 Java类怎么写?

1.首先要在maven里配置相关jar包的引用，编译去下载

  
	org.apache.poi
	poi
	3.17
  

2.创建一个Util类

public class ExcelUtil {
	/**
     * 创建excel文档，
     * @param list 数据
     * @param keys list中map的key数组集合
     * @param columnNames excel的列名
     * */
    public static Workbook createWorkBook(List> list,String []keys,String columnNames[]) {
        // 创建excel工作簿
        Workbook wb = new HSSFWorkbook();
        // 创建第一个sheet（页），并命名
        Sheet sheet = wb.createSheet(list.get(0).get("sheetName").toString());
        // 手动设置列宽。第一个参数表示要为第几列设；，第二个参数表示列的宽度，n为列高的像素数。
        for(int i=0;i

3.Controller部分

**
	 * @param request
	 * @param response
	 * @return 导出活动的报名列表，格式为Excel
	 * @throws IOException
	 */
	@ResponseBody
	@RequestMapping(value = "/getRegListExcel.json")
	public String download(HttpServletRequest request, HttpServletResponse response) throws IOException {
		
		String id = StringUtil.null2Str(getRequest().getParameter("id"));
		String name = StringUtil.null2Str(getRequest().getParameter("name"));
		String fileName = name+"__报名用户列表";
		// 填充projects数据
		List> activityReg = createData(StringUtil.nullToInteger(id));
		List> list = createExcelRecord(activityReg);
		// 列名
		String columnNames[] = { "姓名", "手机号", "报名时间", "是否报名成功", "发送短信状态" };
		// map中的key
		String keys[] = { "name", "mobile", "signUpTime", "status", "smsStatus" };
		ByteArrayOutputStream os = new ByteArrayOutputStream();
		try {
			ExcelUtil.createWorkBook(list, keys, columnNames).write(os);
		} catch (IOException e) {
			e.printStackTrace();
		}
		byte[] content = os.toByteArray();
		InputStream is = new ByteArrayInputStream(content);
		// 设置response参数，可以打开下载页面
		response.reset();
		response.setContentType("application/vnd.ms-excel;charset=utf-8");
		response.setHeader("Content-Disposition",
				"attachment;filename=" + new String((fileName + ".xls").getBytes(), "iso-8859-1"));
		ServletOutputStream out = response.getOutputStream();
		BufferedInputStream bis = null;
		BufferedOutputStream bos = null;
		try {
			bis = new BufferedInputStream(is);
			bos = new BufferedOutputStream(out);
			byte[] buff = new byte[2048];
			int bytesRead;
			// Simple read/write loop.
			while (-1 != (bytesRead = bis.read(buff, 0, buff.length))) {
				bos.write(buff, 0, bytesRead);
			}
		} catch (final IOException e) {
			throw e;
		} finally {
			if (bis != null) {
				bis.close();
			}
			if (bos != null) {
				bos.close();
			}
		}
		return null;
	}

/**
	 * @return
	 */
	private List> createData(Integer id) {
		List> data = activityRegService.getRegList(StringUtil.nullToInteger(id), null, null);
		return data;
	}

/**
	 * @param activityReg
	 * @return
	 */
	private List> createExcelRecord(List> activityReg) {
		List> listmap = new ArrayList>();
		Map map = new HashMap(50);
		map.put("sheetName", "sheet1");
		listmap.add(map);
		// Activity activityRecord=null;
		for (int j = 0; j < activityReg.size(); j++) {
			Map mapValue = new HashMap(50);
			// "name", "phoneNum", "signUpTime","status","smsStatus"
			mapValue.put("name", activityReg.get(j).get("name"));
			mapValue.put("mobile", (activityReg.get(j).get("mobile")));
			Object regTimeObj = activityReg.get(j).get("reg_time");
			if (regTimeObj != null) {
				mapValue.put("signUpTime", (sdf.format(regTimeObj)));
			}else{
				mapValue.put("signUpTime", (null));
			}
			Integer status = StringUtil.nullToInteger(activityReg.get(j).get("status"));
			if (status != null && status.equals(1)) {
				mapValue.put("status", "成功");
			} else if (status != null && status.equals(2)) {
				mapValue.put("status", "失败");
			}
			Integer smsStatus = StringUtil.nullToInteger(activityReg.get(j).get("sms_status"));
			if (smsStatus != null && smsStatus.equals(1)) {
				mapValue.put("smsStatus", "发送成功");
			} else if (smsStatus != null && smsStatus.equals(2)) {
				mapValue.put("smsStatus", "发送失败");
			} else {
				mapValue.put("smsStatus", "未发送");
			}
			listmap.add(mapValue);
		}
		return listmap;
	}