取消从 InputStream 读取
目前我正在使用 ObjecInputStream 从 Socket 读取数据，使用这个简单的代码一切正常：
ObjectInputStream input = new ObjectInputStream(socket.getInputStream());
Object response = input.readObject();
现在我想以某种方式取消读取，而不关闭流，所以我稍后可以再次阅读它。是否可以？
编辑：我想取消读取只是因为它阻塞了程序流程。我不需要重复阅读相同的信息。我只想取消它，以便我可以发送另一个请求，然后读取（另一个）响应。
Currently I am using an ObjecInputStream to read from a Socket, and everything works fine using this simple code:
ObjectInputStream input = new ObjectInputStream(socket.getInputStream());
Object response = input.readObject();
Now I want to somehow cancel the read, without closing the stream, so that I can later read from it again. Is it possible?
Edit: I want to cancel the read just because it is blocking the program flow. I don't need to read the same information twice. I just want to cancel it so that I can send another request and then read the (another) response.
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如果您有某种“主”线程，那么您应该对其执行 I/O。有一个线程专门用于读取和某些扩展处理输入。如果基于事件，则将结果排队到主线程；如果使用共享状态设计，则修改模型。
If you have some kind of "main" thread, then you should perform I/O off of it. Have a thread dedicated to reading and to some extends processing the input. Either queue the results to the main thread if event based, on modify the model if using a shared state design.
您可以使用 PushBackInputStream 来完成这个。读取一些字节后，您可以取消读取这些字节。
You can use a PushBackInputStream to accomplish this. After reading some bytes you can unread the bytes.
查看
ObjectInputStream.markSupported()返回的内容。如果返回true，您可以在开头调用ObjectInputStream.mark()，然后调用ObjectInputStream.reset()来倒回InputStream返回到您标记的位置，以便稍后可以重用它。See what
ObjectInputStream.markSupported()returns. If it returnstrue, you can callObjectInputStream.mark()at the beginning and then callObjectInputStream.reset()to rewind theInputStreamback to the place you marked so you can reuse it later.