Question

用java如何获取excel文件大小

Answer 1

public static void main(String[] args) {
File file = new File("aaa.xls");
System.out.println("文件大小："+file.length());
}

Answer 2

File file = newFile("文件路径");//包括文件名称和扩展名
longlength = file.length();

Answer 3

(new DiskFileItemFactory()).getSizeThreshold();