【Java nio】Blocking nio2

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package com.slp.nio;import org.junit.Test;import java.io.File;import java.io.IOException;import java.net.InetSocketAddress;import java.nio.ByteBuffer;import java.nio.channels.FileChannel;import java.nio.channels.ServerSocketChannel;import java.nio.channels.SocketChannel;import java.nio.file.Paths;import java.nio.file.StandardOpenOption;/** * Created by sanglp on 2017/3/1. */public class TestBlockingNIO2 {    //用戶端    @org.junit.Test    public void client() throws IOException {        SocketChannel socketChannel = SocketChannel.open(new InetSocketAddress("127.0.0.1",9898));        FileChannel fileChannel = FileChannel.open(Paths.get("2.jpg"), StandardOpenOption.READ);        ByteBuffer buffer = ByteBuffer.allocate(1024);        while (fileChannel.read(buffer)!=-1){            buffer.flip();            socketChannel.write(buffer);            buffer.clear();        }        socketChannel.shutdownOutput();//不加這個會一直處於阻塞狀態        //接受伺服器反饋        int len=0;        while (socketChannel.read(buffer)!=-1){            System.out.println(new String(buffer.array(),0,len));            buffer.clear();        }        fileChannel.close();        socketChannel.close();    }    //服務端    @Test    public void server() throws IOException {        ServerSocketChannel serverSocketChannel = ServerSocketChannel.open();        FileChannel outChannel = FileChannel.open(Paths.get("3.jpg"),StandardOpenOption.WRITE,StandardOpenOption.CREATE);        serverSocketChannel.bind(new InetSocketAddress(9898));        SocketChannel socketChannel = serverSocketChannel.accept();        ByteBuffer buffer = ByteBuffer.allocate(1024);        while (socketChannel.read(buffer)!=-1){          buffer.flip();            outChannel.write(buffer);            buffer.clear();        }        //發送反饋        buffer.put("伺服器資料接收成功".getBytes());        buffer.flip();        socketChannel.write(buffer);        socketChannel.close();        serverSocketChannel.close();    }}

 

【Java nio】Blocking nio2