这里是Pipe原理的图示:
创建管道
通过Pipe.open()
方法打开管道。例如:
1Pipe pipe = Pipe.open();
向管道写数据
要向管道写数据,需要访问sink通道。像这样:
1Pipe.SinkChannel sinkChannel = pipe.sink();
通过调用SinkChannel的write()
方法,将数据写入SinkChannel
,像这样:
01 String newData = "New String to write to file..." + System.currentTimeMillis(); 02 ByteBuffer buf = ByteBuffer.allocate(48); 03 buf.clear(); 04 buf.put(newData.getBytes()); 05 06 buf.flip(); 07 08 while(buf.hasRemaining()) { 09 sinkChannel.write(buf); 10 }
从管道读取数据
从读取管道的数据,需要访问source通道,像这样:
1Pipe.SourceChannel sourceChannel = pipe.source();
调用source通道的read()
方法来读取数据,像这样:
1 ByteBuffer buf = ByteBuffer.allocate(48); 2 int bytesRead = sourceChannel.read(buf);
read()
方法返回的int值会告诉我们多少字节被读进了缓冲区。
Java NIO系列教程(一) Java NIO 概述
http://wisdomdd.cn/Wisdom/resource/articleDetail.htm?resourceId=508
Java NIO系列教程(二) Channel
http://wisdomdd.cn/Wisdom/resource/articleDetail.htm?resourceId=509
Java NIO系列教程(三) Buffer
http://wisdomdd.cn/Wisdom/resource/articleDetail.htm?resourceId=510
Java NIO系列教程(四) Scatter/Gather
http://wisdomdd.cn/Wisdom/resource/articleDetail.htm?resourceId=511
Java NIO系列教程(五) 通道之间的数据传输
http://wisdomdd.cn/Wisdom/resource/articleDetail.htm?resourceId=512
Java NIO系列教程(六) Selector
http://wisdomdd.cn/Wisdom/resource/articleDetail.htm?resourceId=513
Java NIO系列教程(七) FileChannel
http://wisdomdd.cn/Wisdom/resource/articleDetail.htm?resourceId=514
Java NIO系列教程(八) SocketChannel
http://wisdomdd.cn/Wisdom/resource/articleDetail.htm?resourceId=516
Java NIO系列教程(九) ServerSocketChannel
http://wisdomdd.cn/Wisdom/resource/articleDetail.htm?resourceId=517
Java NIO系列教程(十) Java NIO DatagramChannel
http://wisdomdd.cn/Wisdom/resource/articleDetail.htm?resourceId=518
Java NIO系列教程(十二) Java NIO与IO
http://wisdomdd.cn/Wisdom/resource/articleDetail.htm?resourceId=519