java jxl读取excel中的数据传入二维数组中

来公司实习，做了一个利用java jxl读取excel数据传入二维数组中

package practice_1;import java.io.File;import java.io.FileInputStream;import java.util.ArrayList;import java.util.List;import jxl.Cell;import jxl.Sheet;import jxl.Workbook;public class prac_00 {public static void main(String[] args) {jxl.Workbook readwb = null;// List<String> list = new ArrayList<String>();try {// 构建Workbook对象, 只读Workbook对象 直接从本地文件创建Workbookreadwb = Workbook.getWorkbook(new FileInputStream(new File("D:\\a.xls")));// Sheet的下标是从0开始 获取第一张Sheet表Sheet readsheet = readwb.getSheet(0);// 获取Sheet表中所包含的总列数int rsColumns = readsheet.getColumns();// 获取Sheet表中所包含的总行数int rsRows = readsheet.getRows();// 获取指定单元格的对象引用String[][] arr = (new String[rsColumns][rsRows]);for (int i = 0; i < rsColumns; i++) {for (int j = 0; j < rsRows; j++) {Cell cell = readsheet.getCell(i, j);// System.out.print(cell.getContents() + " ");// list.add(cell.getContents());arr[i][j] = cell.getContents();}}for (int i = 0; i < rsColumns; i++) {for (int j = 0; j < rsRows; j++) {System.out.print(arr[i][j] + " ");}System.out.println("------------数据分割线-----------------");}} catch (Exception e) {e.printStackTrace();} finally {readwb.close();}}}