java如何读取xls文件方法

	try {
			InputStream is = new FileInputStream(Thread.currentThread()
					.getContextClassLoader().getResource("123.xls").getPath());
			Workbook rwb = Workbook.getWorkbook(is);
			Sheet rs = rwb.getSheet(0);// 参数设置读文件的第几页
			int rsRows = rs.getRows(); // 获取Sheet表中所包含的总行数
			TOTALROWS=rsRows;
			for (int i = 0; i < rsRows; i++) {
				Cell[] row = rs.getRow(i);
				String bid=row[0].getContents().trim();
				BIDS.add(bid);
				PHONES.put(bid, row[1].getContents().trim());
			}
		} catch (Exception e) {
			e.printStackTrace();
		}