java解析xls文件 java简单解析xls文件的方法示例【读取和写入】
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本文实例讲述了java简单解析xls文件的方法。分享给大家供大家参考,具体如下:
读取:
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){ } } }
写入:
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 Title int 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 detail int 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){ } } }
希望本文所述对大家java程序设计有所帮助。
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