i系统的文件下载

    /**
     * 是否剔除中间汇总节点
     * @return
     * @throws Exception
     */
    public File writeFile() throws Exception {
        throw new Exception("请实现该方法！");
    }

@ResponseBody
    @RequestMapping("/ei/rwdata/download/start")
    public void startDownload(HttpServletResponse response, @RequestParam int choosetype, @RequestParam String sid, HttpServletRequest request)
            throws Exception {
        long start = System.currentTimeMillis();
        Login login = JspFunc.getLogin(request);
        response.setHeader("Cache-Control", "no-store, no-cache, must-revalidate");
        request.setAttribute("choosetype", choosetype);
        WriterParams params = getParamsMap(sid);
        params.setType(choosetype);
        WriterUtil util = null;
        int type = params.getType();
        StringBuffer log = new StringBuffer();//记录日志的信息
        switch (type) {
            case TYPE_PAT:
                log.append("导出格式：").append("PAT").append("\r\n");
                util = new PatWriterUtil(login, params);
                break;
            case TYPE_TXT:
                log.append("导出格式：").append("TXT").append("\r\n");
                util = new TxtWriterUtil(login, params);
                break;
            case TYPE_NDT:
                log.append("导出格式：").append("NDT").append("\r\n");
                util = new NdtWriterUtil(login, params);
                break;
            case TYPE_EXCEL:
                log.append("导出格式：").append("EXCEL").append("\r\n");
                util = new XlsWriterUtil(login, params);
                break;
            case TYPE_OEM_XML:
                log.append("导出格式：").append("XML").append("\r\n");
                util = new XmlWriterUtil(login, params);
                break;
            case TYPE_DAT:
                log.append("导出格式：").append("DAT").append("\r\n");
                util = new DatWriterUtil(login, params);
                break;
            case TYPE_EXCEL_ADBC_KHFX:
                log.append("导出格式：").append("DAT").append("\r\n");
                util = new XlsWriterUtilForKHFX(login, params);
                break;
        }
        log.append("任务：").append(params.getTask().getCaption()).append("\r\n");
        log.append("数据集：").append(params.getDataset()).append("\r\n");
        if (params.getBbqs() != null || !StrFunc.isNull(params.getCbbq())) {
            log.append("报表期：");
            String[] bbqs = params.getBbqs();
            if (bbqs != null && bbqs.length > 0) {
                log.append(ArrayFunc.array2Str(bbqs, ","));
            } else {
                log.append(params.getCbbq());
            }
        }
        Bbh cbbh = params.getCbbh();
        if (cbbh != null) {
            log.append("\r\n当前报表户：").append(cbbh.getName()).append("(").append(cbbh.getId()).append(")").append("\r\n");
        }
        int op = params.getDwOp();
        String[] dwop = new String[] { "本级单位（作为基层单位上报）", "本级及直接下级单位（下级单位作为基层单位上报）", "所有单位", "已选择的单位" };
        if (op > -1 && op < dwop.length) {
            log.append("导出单位选项：").append(dwop[op]).append("\r\n");
            if (op == WriterUtil.UPSELECTED) {
                //解决添加多标签选中报表户串的问题
                String id = StrFunc.null2blank(params.getTabid())+params.getTask().getServerId();
                BbhBookMarks marks = BbhBookMarkUtil.getBbhBookMarks(login, id);
                if (marks != null) {
                    int count = marks.getCount();
                    log.append("选择户数：").append(count).append("\r\n");
                    if (count <= 10) {
                        String[] bbhs = marks.getBbhs();
                        log.append("选择的户：").append(ArrayFunc.array2Str(bbhs, ";")).append("\r\n");
                    }
                }
            }
        }

        WriteFileThread thread = new WriteFileThread(util);
        /**
         * IRPT-21919  edit by ligl on 20160223  导出的excel和导出数据明显感觉时间不对，都是0 
         */
        thread.setStartTime(start);
        thread.setLogs(log.toString());
        threadMap.put(sid, thread);
        Thread realthread = new Thread(thread);
        realthread.start();
//      ReportLogManager.addInfoLog(login, LogedOperations.OP_BBHDATA_EXPORTDATA, start, null, params.getTask().getGroup(),
//              params.getTask().getServerId(), params.getCbbq(), cbbh.getId(), cbbh.getType(), "导出报表户数据", log.toString(), null);
    }

public void run() {
        try {
            file = util.writeFile();
        }
        catch (CancelException e) {
            util.addLog("导出操作被取消！");
        }
        catch (Exception e) {
            ReportLogManager.addWarnLog(null, null, null, null, null, null, null, null,
                    e.getMessage(), StrFunc.exception2str(e), null);
            ex = e;
            util.addLog(StrFunc.exceptionMsg2str(e));
        }
        finally {
            finished = true;
        }

    }