java 读取一个excel

try {
String source = "xxx.xls";
InputStream is = new FileInputStream(source);
Workbook rwb = Workbook.getWorkbook(is);
Sheet sheet = rwb.getSheet(0);
for (int i = 1; i < sheet.getRows(); i++) {
for (int j = 1; j < sheet.getColumns(); j++) {
//获取指定单元格的对象引用，需要注重的是它的两个参数，第一个是列数，第二个是行数
Cell cell = sheet.getCell(j, i);
System.out.print("Values : " + cell.getContents().trim());
}
System.out.println();
}
} catch (Exception e) {
e.printStackTrace();
}
}