有没有不用第三方库就可以创建tar文件的方法？

Question

Can we create tar file without using third party libraries?

Thanks in advance.

Regards, Sreenath Reddy

Answer 1

There is no build-in support of the tar format in the standard library, no.

But it is possible, yes. The Wikipedia page about tar has a overview description of the format, and also links to more detailed descriptions (in the External links section). You should not need more to create a tar file with Java. For convenience and performance, use a DataOutputStream on top of BufferedOutputStream and FileOutputStream (if you want to save this as a file).

Of course, using an existing tar library is less error prone, easier to use and might even be faster.