jxl.jar 包下载地址:http://www.andykhan.com/jexcelapi/真实下载地址:http://www.andykhan.com/jexcelapi/download.html网站上对它的特征有如下描述:● 支持Excel 95-2000的所有版本● 生成Excel 2000标准格式● 支持字体、数字、日期操作● 能够修饰单元格属性● 支持图像和图表应该说以上功能已经能够大致满足我们的需要。最关键的是这套API是纯Java的,并不依赖Windows系统,即使运行在Linux下,它同样能够正确的处理Excel文件。另外需要说明的是,这套API对图形和图表的支持很有限,而且仅仅识别PNG格式。搭建环境将下载后的文件解包,得到jxl.jar,放入classpath,安装就完成了。基本操作一、创建文件拟生成一个名为“测试数据.xls”的Excel文件,其中第一个工作表被命名为“第一页”,大致效果如下:
Java代码 package JExcelTest.standard; import java.io.*; import jxl.*; import jxl.write.*; public class CreateXLS { public static void main(String[] args) { try { //open file. WritableWorkbook book = Workbook.createWorkbook(new File("d:/Test.xls")); //create Sheet named "Sheet_1". 0 means this is 1st page. WritableSheet sheet = book.createSheet("Sheet_1", 0); //define cell column and row in Label Constructor, and cell content write "test". //cell is 1st-Column,1st-Row. value is "test". Label label = new Label(0, 0, "test"); //add defined cell above to sheet instance. sheet.addCell(label); //create cell using add numeric. WARN:necessarily use integrated package-path, otherwise will be throws path-error. //cell is 2nd-Column, 1st-Row. value is 789.123. jxl.write.Number number = new jxl.write.Number(1, 0, 789.123); //add defined cell above to sheet instance. sheet.addCell(number); //add defined all cell above to case. book.write(); //close file case. book.close(); } catch (Exception e) { e.printStackTrace(); } } } 编译执行后,会在当前位置产生一个Excel文件。二、读取文件以刚才我们创建的Excel文件为例,做一个简单的读取操作,程序代码如下: Java代码 package JExcelTest.standard; import java.io.*; import jxl.*; public class ReadXLS { public static void main(String[] args) { try { Workbook book = Workbook.getWorkbook(new File("d:/Test.xls")); //get a Sheet object. Sheet sheet = book.getSheet(0); //get 1st-Column,1st-Row content. Cell cell = sheet.getCell(0, 0); String result = cell.getContents(); System.out.println(result); book.close(); } catch (Exception e) { e.printStackTrace(); } } } 程序执行结果:test三、修改文件利用jExcelAPI可以修改已有的Excel文件,修改Excel文件的时候,除了打开文件的方式不同之外,其他操作和创建Excel是一样的。下面的例子是在我们已经生成的Excel文件中添加一个工作表:修改Excel的类,添加一个工作表 Java代码 package JExcelTest.standard; import java.io.*; import jxl.*; import jxl.write.*; public class UpdateXLS { public static void main(String[] args) { try { //get file. Workbook wb = Workbook.getWorkbook(new File("d:/Test.xls")); //open a copy file(new file), then write content with same content with Test.xls. WritableWorkbook book = Workbook.createWorkbook(new File("d:/Test.xls"), wb); //add a Sheet. WritableSheet sheet = book.createSheet("Sheet_2", 1); sheet.addCell(new Label(0, 0, "test2")); book.write(); book.close(); } catch (Exception e) { e.printStackTrace(); } } } 相关资源:java导入导出excel操作(jxl),整理中。。。