不连续地在Java中写入文件的最佳方法是什么？

Question

I'm programming an android app that transfers a file over bluetooth.

My question is, what is the best way to write a file uncontinuously, meaning the file is being written in the external storage directory while the data is sent in chunks via bluetooth. the writing obviously occurs faster and takes pauses between receiving two chunks.

Are RandomAccessFile and FileChannel efficient for that task?

Thanks in advance.

PS: file size is about 10MB

Answer 1

if you go to utilize RandomAccessFile , so beware about the flushing mechanism, its not manual, and it may give some time(specially when you write data small). my suggestion is FileChanel , you would take control of flushing, of course it doesn't support direct functionality for writing primitive data, but you would utilize ByteBuffer to doing so.

Answer 2

Why random access? Are you going to write in the middle of the file? If not than a simple file appender will do. And you don't need to keep your file open all the time...