拆分二进制文件，将数据添加到每个块？ [英] Splitting Binary files and adding data to each chunk?

问题描述

我必须在其中我有一个二进制文件转换成一个自定义的文件格式，这就需要分割文件中添加一些数据，然后将其重新打包为新文件的项目工作。

I have to work on a project in which I have to convert a binary file into a custom file format, which requires splitting the file adding some data to it and then repacking it into the new file.

例如

我有1 MB的文件，我必须把它分割成固定长度的数据块，然后加入一些数据作为头吧。
之后，整个文件将被重新包装成一个新的文件中。

I have a file of 1 MB and I have to split it into chunks of fixed length and then adding some data as a header to it. After that the entire file will be repackaged into a new file.

请任何帮助将AP preciated。

Please any help will be appreciated.

推荐答案

首先，你使用的 DataInputStream以读的X字节块为单个字节数组，其中x是块大小。我建议将这些字节数组存储在一个的ArrayList

First you use a DataInputStream to read chunks of x bytes into individual byte arrays, where x is your chunk size. I would suggest to store these byte arrays in an ArrayList.

然后创建一个 DataOutputStream类为创建新的文件。

Then you create a DataOutputStream for creating the new file.

最后，你遍历一个for循环的ArrayList和数组的内容写入DataOutputStream类，preceded或之后的附加数据，您需要添加对每个块。

Finally, you iterate over your ArrayList with a for loop and write the contents of the arrays to the DataOutputStream, preceded or followed by the additional data you need to add for each chunk.

我希望我能够帮助你。当事情不清，随意问。

I hope I was able to help you. When something is unclear, feel free to ask.

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