package com.ard.tianyu.netty.handler;// MessageProtocolEncoder.java
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import com.ard.tianyu.netty.command.BaseCommand;
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import io.netty.buffer.ByteBuf;
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import io.netty.channel.ChannelHandlerContext;
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import io.netty.handler.codec.MessageToByteEncoder;
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import lombok.extern.slf4j.Slf4j;
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import java.util.Arrays;
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@Slf4j
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public class MessageProtocolEncoder extends MessageToByteEncoder<BaseCommand> {
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@Override
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protected void encode(ChannelHandlerContext ctx, BaseCommand command, ByteBuf out) throws Exception {
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command.encode(out); // 编码具体负载
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// 打印
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if(command.getCmdCode()!=0x02) {
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printHex(out);
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}
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}
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// 打印编码后的字节数组
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private void printHex(ByteBuf out)
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{
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// 打印编码后的字节数组
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byte[] encodedBytes = new byte[out.readableBytes()]; // 创建字节数组,大小为可读字节数
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out.getBytes(out.readerIndex(), encodedBytes); // 读取ByteBuf中的字节到字节数组中
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// log.warn("Encoded message bytes: {}", Arrays.toString(encodedBytes));
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// 将字节数组转换为十六进制格式
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StringBuilder hexString = new StringBuilder();
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for (byte b : encodedBytes) {
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hexString.append(String.format("%02X ", b)); // 将每个字节转换为两位十六进制并加上空格
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}
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log.warn("Encoded message in hex: {}", hexString.toString().trim());
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}
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}
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