java WritableWorkbook导出Excel

List<TZIn> list = tzInService.getList(tzIn,user);
        
        String fileName = "入库台账统计.xls";
        response.setContentType("application/vnd.ms-excel;charset=UTF-8");
        try {
            if (request.getHeader("User-Agent").toUpperCase().indexOf("MSIE") > 0){ // ie浏览器
                fileName = URLEncoder.encode(fileName, "UTF-8");
            } else {
                fileName = new String(fileName.getBytes("UTF-8"), "ISO8859-1");
            }
            response.setHeader("Content-Disposition", "p_w_upload; filename="+ fileName);
        } catch (UnsupportedEncodingException e2) {
            e2.printStackTrace();
        }
        
        WritableWorkbook web = null;
        ServletOutputStream sos = null;
        try {
            sos = response.getOutputStream();
            web = Workbook.createWorkbook(sos);
            WritableSheet ws = web.createSheet("入库台账统计", 0);
            ws.setColumnView(0, 20);
            ws.setColumnView(1, 20);
            ws.setColumnView(2, 20);
            ws.setColumnView(3, 20);
            ws.setColumnView(4, 20);
            ws.setColumnView(5, 20);
            ws.setColumnView(6, 20);
            ws.setColumnView(7, 20);
            ws.setColumnView(8, 20);
            ws.setColumnView(9, 20);
            ws.setColumnView(10, 20);

            WritableCellFormat cellFormat = new WritableCellFormat(); // 设置单元格居中
            cellFormat.setAlignment(Alignment.CENTRE);

            WritableFont font = new WritableFont(WritableFont.COURIER, 16,WritableFont.BOLD, true);
            WritableCellFormat format = new WritableCellFormat(font);
            format.setAlignment(Alignment.CENTRE);

            Label label0 = new Label(0, 0, "单位名称");
            Label label1 = new Label(1, 0, "入库时间 ");
            Label label2 = new Label(2, 0, "废物名称");
            Label label3 = new Label(3, 0, "废物类别");
            Label label4 = new Label(4, 0, "废物代码");
            Label label5 = new Label(5, 0, "废物形态");
            Label label6 = new Label(6, 0, "废物来源");
            Label label7 = new Label(7, 0, "包装形式");
            Label label8 = new Label(8, 0, "数量（吨）");
            Label label9 = new Label(9, 0, "接收仓库 ");
            Label label10 = new Label(10, 0, "经办人");
            
            label0.setCellFormat(cellFormat);
            label1.setCellFormat(cellFormat);
            label2.setCellFormat(cellFormat);
            label3.setCellFormat(cellFormat);
            label4.setCellFormat(cellFormat);
            label5.setCellFormat(cellFormat);
            label6.setCellFormat(cellFormat);
            label7.setCellFormat(cellFormat);
            label8.setCellFormat(cellFormat);
            label9.setCellFormat(cellFormat);
            label10.setCellFormat(cellFormat);
            
            ws.addCell(label0);
            ws.addCell(label1);
            ws.addCell(label2);
            ws.addCell(label3);
            ws.addCell(label4);
            ws.addCell(label5);
            ws.addCell(label6);
            ws.addCell(label7);
            ws.addCell(label8);
            ws.addCell(label9);
            ws.addCell(label10);
            
            if (list != null && list.size() > 0) {
                for (int i = 0; i < list.size(); i++) {
                    TZIn tzIn = list.get(i);
                    
                    Label cname = new Label(0, i+1, tzIn.getCname());
                    Label inTime = new Label(1, i+1, tzIn.getInTime().toString().substring(0, 10));
                    Label wasteName = new Label(2, i+1, tzIn.getWasteName());
                    Label wasteType = new Label(3, i+1, tzIn.getWasteType());
                    Label wasteCode = new Label(4, i+1, tzIn.getWasteCode());
                    Label wasteForm = new Label(5, i+1, TZToolUtil.formShow(tzIn.getWasteForm()));
                    Label wasteSource = new Label(6, i+1, TZToolUtil.wasteSourceShow(tzIn.getWasteSource()));
                    Label packageWay = new Label(7, i+1, TZToolUtil.packageWayShow(tzIn.getPackageWay()));
                    Label wasteAmount = new Label(8, i+1, String.valueOf(tzIn.getWasteAmount()));
                    Label acceptPlace = new Label(9, i+1, tzIn.getAcceptPlace());
                    Label handleMan = new Label(10, i+1, tzIn.getHandleMan());
                    
                    cname.setCellFormat(cellFormat);
                    inTime.setCellFormat(cellFormat);
                    wasteName.setCellFormat(cellFormat);
                    wasteType.setCellFormat(cellFormat);
                    wasteCode.setCellFormat(cellFormat);
                    wasteForm.setCellFormat(cellFormat);
                    wasteSource.setCellFormat(cellFormat);
                    packageWay.setCellFormat(cellFormat);
                    wasteAmount.setCellFormat(cellFormat);
                    acceptPlace.setCellFormat(cellFormat);
                    handleMan.setCellFormat(cellFormat);

                    ws.addCell(cname);
                    ws.addCell(inTime);
                    ws.addCell(wasteName);
                    ws.addCell(wasteType);
                    ws.addCell(wasteCode);
                    ws.addCell(wasteForm);
                    ws.addCell(wasteSource);
                    ws.addCell(packageWay);
                    ws.addCell(wasteAmount);
                    ws.addCell(acceptPlace);
                    ws.addCell(handleMan);
                }
            }
            web.write();
            sos.flush();
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            try {
                web.close();
                sos.close();
            } catch (Exception e1) {
                e1.printStackTrace();
            }
        }