java简单解析xls文件的方法示例【读取和写入】

import java.io.*;import jxl.*;import jxl.write.*;import jxl.format.*;class Aa{public static void main(String args[]) {try{Workbook workbook = null;try {  workbook = Workbook.getWorkbook(new File("d:\\a.xls"));} catch (Exception e) {  throw new Exception("file to import not found!");}Sheet sheet = workbook.getSheet(0);Cell cell = null;int columnCount=3;int rowCount=sheet.getRows();for (int i = 0; i <rowCount; i++) {  for (int j = 0; j <columnCount; j++) {    //注意，这里的两个参数，第一个是表示列的，第二才表示行    cell=sheet.getCell(j, i);    //要根据单元格的类型分别做处理，否则格式化过的内容可能会不正确    if(cell.getType()==CellType.NUMBER){      System.out.print(((NumberCell)cell).getValue());    }    else if(cell.getType()==CellType.DATE){      System.out.print(((DateCell)cell).getDate());    }    else{      System.out.print(cell.getContents());    }    //System.out.print(cell.getContents());    System.out.print("\t");  }  System.out.print("\n");}//关闭它，否则会有内存泄露workbook.close();}catch(Exception e){}}}