管道(Pipe)

Java的NIO管道是2個執行緒之間的單向資料連線,Pipe有一個source通道和一個sink通道,資料會被寫到sink通道,從source通道讀取

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. 獲取管道
        Pipe pipe = Pipe.open();

        //2. 將緩衝區中的資料寫入到管道
        ByteBuffer buf = ByteBuffer.allocate(1024);
        Pipe.SinkChannel sinkChannel = pipe.sink();
        buf.put("通過單向管道傳送資料".getBytes());
        buf.flip();
        sinkChannel.write(buf);

        //3. 讀取緩衝區中的資料
        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();
    }
}