jxl导出excel

public void writeToExl_GW(ByteArrayOutputStream byteOs)throws Exception{ 

        try{ 

            int timeLength = 0; 

            ITrendService trendService = new TrendServiceImpl(); 

            if(null != stepTime && !"".equals(stepTime)){ 

                timeLength = Integer.valueOf(stepTime); 

            } 

            gwjcList=trendService.querygwjcList(beginTime,endTime,timeLength); 

            String filename="轨温监测历史查询"+ new SimpleDateFormat("yyyy-MM-dd").format(new Date(System.currentTimeMillis())) + ".xls";  

            exportFileName = new String(filename.getBytes("GBK"), "ISO-8859-1"); 

            WritableWorkbook wbook = Workbook.createWorkbook(byteOs); //建立excel文件  

            WritableSheet wsheet = wbook.createSheet("轨温监测历史查询", 0); //工作表名称  

            WritableFont wfont1 = new WritableFont(WritableFont.ARIAL, 9,      //初始化一些样式 

                    WritableFont.NO_BOLD, false, 

                    jxl.format.UnderlineStyle.NO_UNDERLINE, jxl.format.Colour.RED); 

            WritableFont wfont2 = new WritableFont(WritableFont.ARIAL, 10); 

            WritableFont wfont3 = new WritableFont(WritableFont.ARIAL, 9, 

                    WritableFont.NO_BOLD, false, 

                    jxl.format.UnderlineStyle.NO_UNDERLINE, 

                    jxl.format.Colour.AUTOMATIC); 

            WritableFont wfont4 = new WritableFont(WritableFont.ARIAL, 10); 

            WritableCellFormat titleFormat1 = new WritableCellFormat(wfont1); 

            WritableCellFormat titleFormat2 = new WritableCellFormat(wfont2); 

            WritableCellFormat titleFormat3 = new WritableCellFormat(wfont3); 

            WritableCellFormat titleFormat3_1 = new WritableCellFormat(wfont3); 

            WritableCellFormat titleFormat4 = new WritableCellFormat(wfont4); 

            titleFormat1.setVerticalAlignment(VerticalAlignment.CENTRE);     

            titleFormat1.setAlignment(Alignment.CENTRE); 

            titleFormat1.setWrap(true); 

               

            titleFormat2.setVerticalAlignment(VerticalAlignment.CENTRE);   //设置居中对齐 

            titleFormat2.setAlignment(Alignment.CENTRE);//设置居中对齐（这俩哪个是上下/左右对齐也没验证过） 

            titleFormat2.setBackground(jxl.format.Colour.GREY_25_PERCENT);//单元格背景色 

            titleFormat3.setVerticalAlignment(VerticalAlignment.CENTRE); 

            titleFormat3.setAlignment(Alignment.CENTRE); 

            titleFormat3.setWrap(true);//是否自动换行 

            titleFormat3.setBorder(jxl.format.Border.ALL,jxl.format.BorderLineStyle.THIN);//给单元格加边框          titleFormat3_1.setVerticalAlignment(VerticalAlignment.CENTRE); 

            titleFormat3_1.setAlignment(Alignment.CENTRE); 

            titleFormat3_1.setWrap(true); 

            titleFormat3_1.setBackground(jxl.format.Colour.ORANGE); 

            titleFormat3_1.setBorder(jxl.format.Border.ALL,jxl.format.BorderLineStyle.THIN);//Biankuang 

            titleFormat4.setVerticalAlignment(VerticalAlignment.CENTRE); 

            titleFormat4.setAlignment(Alignment.CENTRE); 

            titleFormat4.setBackground(jxl.format.Colour.GRAY_25); 

            titleFormat4.setBorder(jxl.format.Border.ALL,jxl.format.BorderLineStyle.HAIR);//Biankuang 

            StringBuffer title = new StringBuffer(); 

            title.append("轨温监测查询条件:"); 

            title.append("开始时间 ["); 

            title.append(beginTime); 

            title.append("]"); 

            title.append(" 结束时间:["); 

            title.append(endTime); 

            title.append("]"); 

            wsheet.setColumnView(0, 19); 

            wsheet.setRowView(0, 600); 

            wsheet.addCell(new Label(0,0,title.toString(),titleFormat1)); 

            if("1".equals(tdzt)){ 

                title.append(" 启用通道状态"); 

                //设置表头行合并单元格 

                wsheet.mergeCells(0, 0, 9, 0); 

                int rows =1; 

                wsheet.addCell(new Label(0,rows,"时间",titleFormat4)); 

                wsheet.addCell(new Label(1,rows,"左温度(℃)",titleFormat4)); 

                wsheet.addCell(new Label(2,rows,"右温度(℃)",titleFormat4)); 

                wsheet.addCell(new Label(3,rows,"环温(℃)",titleFormat4)); 

                wsheet.addCell(new Label(4,rows,"通道一",titleFormat4)); 

                wsheet.addCell(new Label(5,rows,"通道二",titleFormat4)); 

                wsheet.addCell(new Label(6,rows,"通道三",titleFormat4)); 

                wsheet.addCell(new Label(7,rows,"通道四",titleFormat4)); 

                wsheet.addCell(new Label(8,rows,"通道五",titleFormat4)); 

                wsheet.addCell(new Label(9,rows,"通道六",titleFormat4)); 

                   

                for(int i=0;i<gwjcList.size();i++){ 

                    wsheet.addCell(new Label(0,rows+1,gwjcList.get(i).getSj(),titleFormat3)); 

                    wsheet.addCell(new Label(1,rows+1,gwjcList.get(i).getZwd(),titleFormat3)); 

                    wsheet.addCell(new Label(2,rows+1,gwjcList.get(i).getYwd(),titleFormat3)); 

                    wsheet.addCell(new Label(3,rows+1,gwjcList.get(i).getHw(),titleFormat3)); 

                    wsheet.addCell(new Label(4,rows+1,Integer.valueOf(gwjcList.get(i).getTd1zt())==1?"正   常":"异常",Integer.valueOf(gwjcList.get(i).getTd1zt())==1?titleFormat3:titleFormat3_1)); 

                    wsheet.addCell(new Label(5,rows+1,Integer.valueOf(gwjcList.get(i).getTd2zt())==1?"正常":"异常",Integer.valueOf(gwjcList.get(i).getTd2zt())==1?titleFormat3:titleFormat3_1)); 

                    wsheet.addCell(new Label(6,rows+1,Integer.valueOf(gwjcList.get(i).getTd3zt())==1?"正常":"异常",Integer.valueOf(gwjcList.get(i).getTd3zt())==1?titleFormat3:titleFormat3_1)); 

                    wsheet.addCell(new Label(7,rows+1,Integer.valueOf(gwjcList.get(i).getTd4zt())==1?"正常":"异常",Integer.valueOf(gwjcList.get(i).getTd4zt())==1?titleFormat3:titleFormat3_1)); 

                    wsheet.addCell(new Label(8,rows+1,Integer.valueOf(gwjcList.get(i).getTd5zt())==1?"正常":"异常",Integer.valueOf(gwjcList.get(i).getTd5zt())==1?titleFormat3:titleFormat3_1)); 

                    wsheet.addCell(new Label(9,rows+1,Integer.valueOf(gwjcList.get(i).getTd6zt())==1?"正常":"异常",Integer.valueOf(gwjcList.get(i).getTd6zt())==1?titleFormat3:titleFormat3_1)); 

                    rows= rows +1; 

                } 

            }else{ 

                wsheet.mergeCells(0, 0, 3, 0); 

                int rows =1; 

                wsheet.addCell(new Label(0,rows,"时间",titleFormat4)); 

                wsheet.addCell(new Label(1,rows,"左温度(℃)",titleFormat4)); 

                wsheet.addCell(new Label(2,rows,"右温度(℃)",titleFormat4)); 

                wsheet.addCell(new Label(3,rows,"环温(℃)",titleFormat4)); 

                for(int i=0;i<gwjcList.size();i++){ 

                    wsheet.addCell(new Label(0,rows+1,gwjcList.get(i).getSj(),titleFormat3)); 

                    wsheet.addCell(new Label(1,rows+1,gwjcList.get(i).getZwd(),titleFormat3)); 

                    wsheet.addCell(new Label(2,rows+1,gwjcList.get(i).getYwd(),titleFormat3)); 

                    wsheet.addCell(new Label(3,rows+1,gwjcList.get(i).getHw(),titleFormat3)); 

                    rows = rows +1 ; 

                } 

            } 

            contentType = "application/vnd.ms-excel"; 

            wbook.write(); 

            wbook.close(); 

        }catch(Exception e){ 

            e.printStackTrace(); 

        } 

    } 

    public String exportGW(){ 

        try{ 

            ByteArrayOutputStream byteOs = new ByteArrayOutputStream(); 

            writeToExl_GW(byteOs); 

            byteOs.flush(); 

            excelStream = new ByteArrayInputStream(byteOs.toByteArray(),0,byteOs.toByteArray().length); 

            byteOs.close(); 

        }catch(Exception e){ 

            e.printStackTrace(); 

        } 

        return SUCCESS; 

    }