java - 如何从字节缓冲区打印字符串

Question

我刚刚开始玩 java nio 包，有点不知所措 我有一个客户

Socket s=new Socket(ip,port);
OutputStream out=new OutputStream();
PrintStream ps=new PrintStream(s.getOutputStream());
String t=""hiya";
ps.print(t);
ps.flush();
InputSTreamReader in=new InputSTreamReader(s.getInputSTream);
BufferReader b=nwe BufferedReader(in);
System.out.println(b.readLine());//prints echo response from server

在服务器端

this.selkey = selkey;
this.chan = (SocketChannel) chan.configureBlocking(false); // asynchronous/non-blocking
buf = ByteBuffer.allocateDirect(64); // 64 byte capacity

void read() {   
    try {
        int amount_read = -1;
        try { 
           amount_read = chan.read((ByteBuffer) buf.clear());                    
        } catch (Throwable t) { 
            }
        if (amount_read == -1)
            disconnect();//deelts client on exit
        if (amount_read < 1)
            return; // if zero
            System.out.println("sending back " + buf.position() + " bytes");
            // turn this bus right around and send it back!
            buf.flip();
            chan.write(buf);//sending data 2 client
    } catch (Throwable t) {
            disconnect();
            t.printStackTrace();
    }
}

这是做什么的，我将字符串 t 发送到服务器到字节缓冲区并回显它，一切正常，但是我如何在服务器端打印字符串，例如在读取方法中

buf.flip()
System.out.write(buff);//which just prints what looks to be chinese

Answer 1

这是典型的，我已经在这个问题上工作了大约一个小时，但是当我发布问题时，答案出现在我面前 将其转化为炭!

这有效

buf.flip();
while (buf.hasRemaining()) {
    System.out.print((char) buf.get();
}
System.out.println();