@Test
public void test03()throws Exception{
String fileName="D:"+File.separator+"test"+File.separator+"test01.txt";
byte[] bytes="1234567879".getBytes();
File file =new File(fileName);
File folder = file.getParentFile();
if(!folder.exists()){
System.out.println("文件夹不存在");
folder.mkdirs();
}
IOUtils.write(bytes,new FileOutputStream(fileName));
}
