Jquery的一键上传组件OCUpload及POI解析Excel文件

第一步：将js文件引入页面

<script type="text/javascript" src="${pageContext.request.contextPath }/js/jquery-1.8.3.js"></script>
<script type="text/javascript" src="${pageContext.request.contextPath }/js/jquery.ocupload-1.1.2.js"></script>

第二步：在页面中提供任意一个元素

第三步：调用插件提供的upload方法，动态修改HTML页面元素

<script type="text/javascript">
    $(function(){
        //页面加载完成后，调用插件的upload方法，动态修改了HTML页面元素
        $("#myButton").upload({
            action:'xxx.action',
            name:'myFile'
        });
    });
</script>

第四步：服务费利用同名文件接收

POI需要在项目中引入依赖

<dependency>
    <groupId>org.apache.poi</groupId>
    <artifactId>poi</artifactId>
    <version>3.11</version>
</dependency>

//使用POI解析
        HSSFWorkbook workbook = new HSSFWorkbook(new FileInputStream(regionFile));
        HSSFSheet sheet = workbook.getSheetAt(0);
        List<Region> regionList = new ArrayList<Region>();
        for(Row row : sheet) {
            int rowNum = row.getRowNum();
            if(rowNum == 0) {
                continue;
            }
            String id = row.getCell(0).getStringCellValue();
            String province = row.getCell(1).getStringCellValue();
            String city = row.getCell(2).getStringCellValue();
            String district = row.getCell(3).getStringCellValue();
            String postcode = row.getCell(4).getStringCellValue();
            //包装成区域对象
            Region region = new Region();
            region.setId(id);
            region.setProvince(province);
            region.setCity(city);
            region.setDistrict(district);
            region.setPostcode(postcode);
            
            province = province.substring(0, province.length()-1);
            city = city.substring(0, city.length()-1);
            district = district.substring(0, district.length()-1);
            String info = province + city + district;
            //利用pinyin获得首字母简码
            String[] headByString = PinYin4jUtils.getHeadByString(info);
            String shortcode = StringUtils.join(headByString);
            //城市编码
            String citycode = PinYin4jUtils.hanziToPinyin(city, "");
            region.setCitycode(citycode);
            region.setShortcode(shortcode);
            
            regionList.add(region);

 POI生成Excel文件并下载

//分区数据导出
    public String exportXls() throws IOException {
        //查询所有数据
        List<Subarea> subareaList = subareaService.findAll();
        //利用POI写到Excel中
        HSSFWorkbook hssfWorkbook = new HSSFWorkbook();
        //创建标签页
        HSSFSheet sheet = hssfWorkbook.createSheet("分区数据");
        //创建行
        HSSFRow headRow = sheet.createRow(0);
        headRow.createCell(0).setCellValue("分区编号");
        headRow.createCell(1).setCellValue("开始编号");
        headRow.createCell(2).setCellValue("结束编号");
        headRow.createCell(3).setCellValue("位置信息");
        headRow.createCell(4).setCellValue("省市区");
        
        for(Subarea subarea : subareaList) {
            HSSFRow dataRow = sheet.createRow(sheet.getLastRowNum() + 1);
            dataRow.createCell(0).setCellValue(subarea.getId());
            dataRow.createCell(1).setCellValue(subarea.getStartnum());
            dataRow.createCell(2).setCellValue(subarea.getEndnum());
            dataRow.createCell(3).setCellValue(subarea.getPosition());
            dataRow.createCell(4).setCellValue(subarea.getRegion().getName());
        }
        //提供下载
        String filename = "分区数据.xls";
        
        String contentType = ServletActionContext.getServletContext().getMimeType(filename);
        ServletOutputStream outputStream = ServletActionContext.getResponse().getOutputStream();
        hssfWorkbook.write(outputStream);
        //获取客户端浏览器类型
        String agent = ServletActionContext.getRequest().getHeader("User-Agent");
        filename = FileUtils.encodeDownloadFilename(filename, agent);
        //设置响应头
        ServletActionContext.getResponse().setHeader("content-disposition", "attachment;filename="+filename);
        //ServletActionContext.getResponse().setContentType("application/vnd.ms-excel");
        ServletActionContext.getResponse().setContentType(contentType);
        return NONE;
    }