使用Apache POI在java中读取和写入xls和xlsx excel文件 [英] Reading and writing from xls and xlsx excel file in java using Apache POI
问题描述
我正在编写一个程序,无论格式(xls 或 xlsx)如何,都需要从 excel 文件中读取和写入.
I am writing a program which needs to read and write from excel files, irrespective of the format(xls or xlsx).
我知道 Apache POI,但它似乎有不同的类来处理 xls 文件(HSSF)和 xlsx(XSSF)文件.
I am aware of the Apache POI, but it seems it has different classes to handle xls file(HSSF) and xlsx(XSSF) files.
任何人都知道我可以如何实现我在这里尝试做的事情.(也欢迎使用 POI 以外的 API 的想法).
Anyone aware of how I might achieve what I am trying to do here. (Ideas for using an API other than POI are also welcome).
推荐答案
很简单,使用常见的电子表格界面
您的代码如下所示:
Workbook wb = WorkbookFactory.create(new File("myFile.xls")); // Or .xlsx
Sheet s = wb.getSheet(0);
Row r1 = s.getRow(0);
r1.createCell(4).setCellValue(4.5);
r1.createCell(5).setCellValue("Hello");
FileOutputStream out = new FileOutputStream("newFile.xls"); // Or .xlsx
wb.write(out);
out.close();
只要使用通用接口,您就可以使用完全相同的代码读取、写入、编辑现有文件(.xls 和 .xlsx)
You can read, write, edit etc an existing file, both .xls and .xlsx, with exactly the same code as long as you use the common interfaces
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