java中如何导入Excel，并给出模板

发布网友 发布时间：2022-04-20 19:10

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热心网友 时间：2023-07-13 09:24

下面的例子，设置了数字、日期的格式，还有字体，颜色等。

File tempFile=new File( "d:/temp/output.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();