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){}}}

import java.io.*;import jxl.*;import jxl.write.*;import jxl.format.*;class Aa{public static void main(String args[]) {try{File tempFile=new File("d:" + java.io.File.separator + "output00.xls");System.out.println( "d:" + java.io.File.separator + "output00.xls" );WritableWorkbook workbook = Workbook.createWorkbook(tempFile);WritableSheet sheet = workbook.createSheet("TestCreateExcel", 0);//一些临时变量，用于写到excel中Label l=null;jxl.write.Number n=null;jxl.write.DateTime d=null;//预定义的一些字体和格式，同一个Excel中最好不要有太多格式WritableFont headerFont = new WritableFont(WritableFont.ARIAL, 12, WritableFont.BOLD, false, UnderlineStyle.NO_UNDERLINE, jxl.format.Colour.BLUE);WritableCellFormat headerFormat = new WritableCellFormat (headerFont);WritableFont titleFont = new WritableFont(WritableFont.ARIAL, 10, WritableFont.NO_BOLD, false, UnderlineStyle.NO_UNDERLINE, jxl.format.Colour.RED);WritableCellFormat titleFormat = new WritableCellFormat (titleFont);WritableFont detFont = new WritableFont(WritableFont.ARIAL, 10, WritableFont.NO_BOLD, false, UnderlineStyle.NO_UNDERLINE, jxl.format.Colour.BLACK);WritableCellFormat detFormat = new WritableCellFormat (detFont);NumberFormat nf=new NumberFormat("0.00000"); //用于Number的格式WritableCellFormat priceFormat = new WritableCellFormat (detFont, nf);DateFormat df=new DateFormat("yyyy-MM-dd");//用于日期的WritableCellFormat dateFormat = new WritableCellFormat (detFont, df);//剩下的事情，就是用上面的内容和格式创建一些单元格，再加到sheet中l=new Label(0, 0, "用于测试的Excel文件", headerFormat);sheet.addCell(l);//add Titleint column=0;l=new Label(column++, 2, "标题", titleFormat);sheet.addCell(l);l=new Label(column++, 2, "日期", titleFormat);sheet.addCell(l);l=new Label(column++, 2, "货币", titleFormat);sheet.addCell(l);l=new Label(column++, 2, "价格", titleFormat);sheet.addCell(l);//add detailint i=0;column=0;l=new Label(column++, i+3, "标题 "+i, detFormat);sheet.addCell(l);d=new DateTime(column++, i+3, new java.util.Date(), dateFormat);sheet.addCell(d);l=new Label(column++, i+3, "CNY", detFormat);sheet.addCell(l);n=new jxl.write.Number(column++, i+3, 5.678, priceFormat);sheet.addCell(n);i++;column=0;l=new Label(column++, i+3, "标题 "+i, detFormat);sheet.addCell(l);d=new DateTime(column++, i+3, new java.util.Date(), dateFormat);sheet.addCell(d);l=new Label(column++, i+3, "SGD", detFormat);sheet.addCell(l);n=new jxl.write.Number(column++, i+3, 98832, priceFormat);sheet.addCell(n);//设置列的宽度column=0;sheet.setColumnView(column++, 20);sheet.setColumnView(column++, 20);sheet.setColumnView(column++, 10);sheet.setColumnView(column++, 20);workbook.write();workbook.close();}catch(Exception e){}}}