File file = new File(excelFileName);// excelFileName：文件地址
InputStream stream;
Workbook rwb = null;
Cell cell = null;
Sheet sheet = null;
try {
stream = FawenPlugin.class.getResourceAsStream("发文表.xls");
// stream = new FileInputStream(file);
rwb = Workbook.getWorkbook(stream);
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (BiffException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
// 读取主表excel表格的信息存入iolist
System.out.println("---------------读取主表中的数据---------------");
List<String[]> iolist = new ArrayList<String[]>();
sheet = rwb.getSheet(0);
for (int i = 1; i < sheet.getRows(); i++) {
String[] str = new String[sheet.getColumns()];
for (int j = 0; j < sheet.getColumns(); j++) {
cell = sheet.getCell(j, i);
str[j] = cell.getContents();
}
// 获得文件流里的内容
iolist.add(str);
}
原文：http://www.cnblogs.com/lzw0414/p/5411549.html