jxl导出excel --- 居中 自动换行 边框 样式

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;
}