這次能做出來，主要是感謝各位在網上提供的資料，在此記錄

匯出的結果是，大家看哈，若有可取之處可繼續

程式碼比較多，大家主要看哈我用紅色標註部分即可

----------------------------------------------------------------------------程式碼分割線-------------------------------------------------

public void createNoLotteryAlarmExcel(String filePath,String fileName,List<NoLotteryAlarm> alarmLimits) throws Exception{

//這裡要注意每一行標題要留出要合併的位置，我這裡是“”
String[] tittles={"序號","整機缺貨狀態","區域","彩票機號","整機餘量","貨道一","","貨道二","","貨道三","","貨道四","","售貨機號"};
String[] tittles2={"","","","","","票種-面額","餘量","票種-面額","餘量","票種-面額","餘量","票種-面額","餘量"};
OutputStream os=null;
WritableWorkbook ww=null;
File file=new File(filePath);
if(!file.exists()){
file.mkdir();
}
os=new FileOutputStream(filePath+fileName);
ww=Workbook.createWorkbook(os);
WritableSheet sheet=ww.createSheet(fileName, 0);

//文字對齊方式
        WritableCellFormat wcf = new WritableCellFormat();  
        wcf.setAlignment(Alignment.CENTRE);//把水平對齊方式指定為居中 
        wcf.setVerticalAlignment(jxl.format.VerticalAlignment.CENTRE);//把垂直對齊方式指定為居中 

這裡大家可以參考我上面匯出的結果看看，下面的如何合併單元格的
//合併單元格
//WritableSheet.mergeCells(int m,int n,int p,int q);
        //作用是從(m,n)到(p,q)的單元格全部合併[我的理解：m列、n行和p列、q行合併]
sheet.mergeCells(0, 0, 0, 1);//設定第一列、第一行和 第一列、第二行合併
sheet.mergeCells(1, 0, 1, 1);
sheet.mergeCells(2, 0, 2, 1);//這裡是標題“區域” 它合併的是第3列第1行和第3列第2行
sheet.mergeCells(3, 0, 3, 1);
sheet.mergeCells(4, 0, 4, 1);
sheet.mergeCells(5, 0, 6, 0);//貨道一
sheet.mergeCells(7, 0, 8, 0);//貨道二
sheet.mergeCells(9, 0, 10,0);//貨道三
sheet.mergeCells(11, 0, 12,0);//貨道四
sheet.mergeCells(13, 0, 13, 1);
try {//新增第一行標題
for (int i = 0; i < tittles.length; i++) {
sheet.addCell(new Label(i, 0, tittles[i],wcf));//i列，1行，title內容，wcf樣式
}//新增第二行標題
for (int i = 0; i < tittles2.length; i++) {
sheet.addCell(new Label(i, 1, tittles2[i],wcf));//i列，2行，title內容，wcf樣式
}
sheet.setColumnView(1, 15);//設定第2列的寬度
sheet.setColumnView(3, 15);//設定第4列的寬度
int count=2;
if(alarmLimits!=null){
for (int i = 0; i < alarmLimits.size(); i++) {
NoLotteryAlarm alarmLimit=alarmLimits.get(i);
sheet.addCell(new Label(0, count, i+1+"",wcf));

if (StringUtil.isNotEmpty(alarmLimit.getTotal_alerm_content())) {
Integer str=alarmLimit.getTotal_alerm_content();
if(str.equals(Constant.NO_LOTTERY_ALERM_JJ)){
sheet.addCell(new Label(1,count, "緊急缺貨",wcf));
}
else if(str.equals(Constant.NO_LOTTERY_ALERM_ZY)){
sheet.addCell(new Label(1,count,"重要缺貨",wcf));
}
else{
sheet.addCell(new Label(1,count,"餘量充足",wcf));
}
}else {
sheet.addCell(new Label(1,count,"",wcf));
}
if(StringUtil.isNotEmpty(alarmLimit.getArea_name())){
sheet.addCell(new Label(2, count, String.valueOf(alarmLimit.getArea_name()),wcf));
}else {
sheet.addCell(new Label(2, count, "",wcf));
}
if(StringUtil.isNotEmpty(alarmLimit.getLottery_hard_seq())){
sheet.addCell(new Label(3, count, alarmLimit.getLottery_hard_seq(),wcf));
}else {
sheet.addCell(new Label(3, count, "",wcf));
}
sheet.addCell(new Label(4, count, alarmLimit.getTotal_count()+"",wcf));
String str1="";
if(alarmLimit.getLottery_name1()!=null)str1+=alarmLimit.getLottery_name1()+"-";
if(alarmLimit.getLottery_price1()!=null)str1+=alarmLimit.getLottery_price1();
sheet.addCell(new Label(5, count, str1,wcf));
sheet.setColumnView(5, 15);//設定第6列的寬度
if(alarmLimit.getA01_count()!=null)sheet.addCell(new Label(6, count, alarmLimit.getA01_count()+"",wcf));
else sheet.addCell(new Label(6, count, "",wcf));
String str2="";
if(alarmLimit.getLottery_name2()!=null)str2+=alarmLimit.getLottery_name2()+"-";
if(alarmLimit.getLottery_price2()!=null)str2+=alarmLimit.getLottery_price2();
sheet.addCell(new Label(7, count, str2,wcf));
sheet.setColumnView(7, 15);//設定第8列的寬度
if(alarmLimit.getA02_count()!=null)sheet.addCell(new Label(8, count, alarmLimit.getA02_count()+"",wcf));
else sheet.addCell(new Label(8, count, "",wcf));
String str3="";
if(alarmLimit.getLottery_name3()!=null)str3+=alarmLimit.getLottery_name3()+"-";
if(alarmLimit.getLottery_price3()!=null)str3+=alarmLimit.getLottery_price3();
sheet.addCell(new Label(9, count,str3,wcf));
sheet.setColumnView(9, 15);//設定第10列的寬度
if(alarmLimit.getA03_count()!=null)sheet.addCell(new Label(10, count, alarmLimit.getA03_count()+"",wcf));
else sheet.addCell(new Label(10, count, "",wcf));
String str4="";
if(alarmLimit.getLottery_name4()!=null)str4+=alarmLimit.getLottery_name4()+"-";
if(alarmLimit.getLottery_price4()!=null)str4+=alarmLimit.getLottery_price4();
sheet.addCell(new Label(11, count,str4,wcf));
sheet.setColumnView(11, 15);//設定第12列的寬度
if(alarmLimit.getA04_count()!=null)sheet.addCell(new Label(12, count, alarmLimit.getA04_count()+"",wcf));
else sheet.addCell(new Label(12, count, "",wcf));
sheet.addCell(new Label(13, count, alarmLimit.getUbox_code(),wcf));
count++;
}
}
}
catch (Exception e) {
e.printStackTrace();
}
finally{
try {
ww.write();
ww.close();
os.flush();
os.close();
} catch (Exception e) {
e.printStackTrace();
}

}
}

-----------------------------------------------------程式碼結束-----------------------------------------------------

若有不懂的，可以聯絡我喔，希望可以略盡綿力     QQ：156003025，郵箱：[email protected]

參考於：http://zhidao.baidu.com/question/127972298.html

http://blog.csdn.net/hzw2312/article/details/6691543