如何解决在android中读取管道时java.io.IOException:lseek失败:ESPIPE(非法搜索)?
我正在开发Android。我尝试实现管道,并读取管道文件,如以下代码所示:如何解决在android中读取管道时java.io.IOException:lseek失败:ESPIPE(非法搜索)?,java,android,pipe,Java,Android,Pipe,我正在开发Android。我尝试实现管道,并读取管道文件,如以下代码所示: public void onClick(View view) { switch (view.getId()) { case R.id.iat_recognize_stream: new Thread(new Runnable(){ @Override public
public void onClick(View view) {
switch (view.getId()) {
case R.id.iat_recognize_stream:
new Thread(new Runnable(){
@Override
public void run() {
// TODO Auto-generated method stub
while(true){
try{
File vSDCard = null;
vSDCard = Environment.getExternalStorageDirectory();
File vPath = new File( vSDCard.getParent() + "/legacy/rcfifo" );
// Connect to the named pipe
RandomAccessFile pipe = new RandomAccessFile(vPath, "r"); // "r" or "w" or for bidirectional (Windows only) "rw"
// Read response from pipe
String string_data= pipe.readLine();
byte[] byte_data = string_data.getBytes();
Log.d(TAG,"test log");
if(false){
pipe.close();
}
}
catch(Exception e){
Log.d(TAG,"test Exception = " + e.toString());
}
}
}
}).start();
break;
}
}
在下面的日志中,它将显示java.io.IOException:lseek failed:ESPIPE
D/IatDemo: test Exception = java.io.IOException: lseek failed: ESPIPE (Illegal seek)
D/IatDemo: test log
D/IatDemo: test log
D/IatDemo: test Exception = java.io.IOException: lseek failed: ESPIPE (Illegal seek)
D/IatDemo: test Exception = java.io.IOException: lseek failed: ESPIPE (Illegal seek)
问题1:
如何解决在android中读取管道时java.io.IOException:lseek失败:ESPIPE(非法搜索)
问题2:
如何通过日志以十六进制打印所有字节数据?在
文件读取器周围使用缓冲读取器
@EJP Hi,您能解释更多细节吗?谢谢使用BufferedReader
围绕FileReader
@EJP Hi,您能解释更多细节吗?谢谢