NIO的pipe管道

管道(Pipe)

Java的NIO管道是2个线程之间的单向数据连接,Pipe有一个source通道和一个sink通道,数据会被写到sink通道,从source通道读取

package com.nio;

import org.junit.Test;

import java.io.IOException;
import java.nio.ByteBuffer;
import java.nio.channels.Pipe;

public class TestPipe {
    @Test
    public void test1() throws IOException{
        //1. 获取管道
        Pipe pipe = Pipe.open();

        //2. 将缓冲区中的数据写入到管道
        ByteBuffer buf = ByteBuffer.allocate(1024);
        Pipe.SinkChannel sinkChannel = pipe.sink();
        buf.put("通过单向管道发送数据".getBytes());
        buf.flip();
        sinkChannel.write(buf);

        //3. 读取缓冲区中的数据
        Pipe.SourceChannel sourceChannel = pipe.source();
        buf.flip();
        int len = sourceChannel.read(buf);
        System.out.println(new String(buf.array(),0,len));

        sourceChannel.close();
        sinkChannel.close();
    }
}