如何刷新Java串行InputStream? [英] How do you flush a Java serial InputStream?

问题描述

我正在使用JavaComm，并从串行端口对象获取inputStream.我有一个问题，就是有时在系统启动时，缓冲区中会出现一些我不想要的噪音字符.我想初始化串行端口，然后在开始处理之前以某种方式刷新所有数据的输入.

I'm using JavaComm, and getting the inputStream from the serial port object. I have a problem in that sometimes when the system starts up there are noise characters in the buffer that I do not want. I want to initialize the serial port then somehow flush the input of all data before I begin my processing.

有什么办法吗?

TY 弗雷德

推荐答案

"flush()"方法如何知道什么是垃圾，什么是真实数据?只有您知道，您的程序应该准备忽略引导垃圾.

How would a "flush()" method know what is garbage and what is real data? Only you know, and your program should be prepared to ignore leading garbage.

如果可以绝对确定发送请求之前输入缓冲区中的所有数据都是垃圾，那么只需读取直到没有更多输入数据为止-即自己刷新它.

If you can be absolutely certain that all data in the input buffer prior to sending the request is garbage, then just read until there is no more input data -- i.e. flush it yourself.

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