ByteProtocolFactory.java
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package com.example.mina.client.base;
import org.apache.mina.core.buffer.IoBuffer;
import org.apache.mina.core.session.IoSession;
import org.apache.mina.filter.codec.*;
public class ByteProtocolFactory implements ProtocolCodecFactory {
private final ByteEncoder encoder;
private final ByteDecoder decoder;
//构造
public ByteProtocolFactory() {
encoder = new ByteEncoder();
decoder = new ByteDecoder();
}
@Override
public ProtocolDecoder getDecoder(IoSession arg0) throws Exception {
return decoder;
}
@Override
public ProtocolEncoder getEncoder(IoSession arg0) throws Exception {
return encoder;
}
public class ByteEncoder extends ProtocolEncoderAdapter {
//编码 将数据包转成字节数组
@Override
public void encode(IoSession session, Object message, ProtocolEncoderOutput out) throws Exception {
byte[] bytes = (byte[]) message;
IoBuffer buffer = IoBuffer.allocate(bytes.length);
buffer.setAutoExpand(true);
// 将数据放入缓冲IoBuffer
buffer.put(bytes);
// 写状态切换到读状态
buffer.flip();
out.write(buffer);
}
}
public class ByteDecoder extends ProtocolDecoderAdapter {
@Override
public void decode(IoSession session, IoBuffer in, ProtocolDecoderOutput out) throws Exception {
int limit = in.limit();
byte[] bytes = new byte[limit];
in.get(bytes);
out.write(bytes);
}
}
}