java - 从java中的DataInputStream获取当前位置

Question

谁能告诉我如何在从 DataInputStream 读取二进制文件时获取索引的当前位置？我见过一个 mark() 方法，但一个是 Boolean 类型，另一个是 void。我需要阅读不同位置的索引才能再次使用它们。

Answer 1

类似的问题以前也有人问过。参见例如 this question .

我不知道还有比这更好的答案了:

A simple solution however, would be to roll your own "CountingInputStream" that extends InputStream and counts the number of bytes read. You would basically just need to override the three read-methods.

也可以直接将其实现为 FilterInputStream。