Netty学习笔记1-粘包/拆包

1,粘包/拆包问题

2,粘包/拆包的解决策略

3,String解码器

socketChannel.pipeline().addLast(new StringDecoder());

4,换行符转码器(特殊的分隔符)

request = ("QUERY TIME ORDER" + System.getProperty("line.separator")).getBytes();

socketChannel.pipeline().addLast(new LineBasedFrameDecoder(222));

5,分隔符转码器

socketChannel.pipeline().addLast(new DelimiterBasedFrameDecoder(1024,delimiter));

1024-读取buffer的最大长度,如果超过该长度还没读取到分隔符则抛出异常

delimiter-分隔符

6,定长转码器

socketChannel.pipeline().addLast(new FixedLengthFrameDecoder(20));