package com.lyncc.netty.heartbeat2;
import io.netty.channel.Channel;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.SimpleChannelInboundHandler;
import io.netty.handler.timeout.IdleStateEvent;
import io.netty.util.ReferenceCountUtil;
public class NettyClientHandler extends SimpleChannelInboundHandler<BaseMsg> {
//利用写空闲发送心跳检测消息
@Override
public void userEventTriggered(ChannelHandlerContext ctx, Object evt) throws Exception {
if (evt instanceof IdleStateEvent) {
IdleStateEvent e = (IdleStateEvent) evt;
switch (e.state()) {
case WRITER_IDLE:
PingMsg pingMsg=new PingMsg();
ctx.writeAndFlush(pingMsg);
System.out.println("send ping to server----------");
break;
default:
break;
}
}
}
@Override
protected void channelRead0(ChannelHandlerContext channelHandlerContext, BaseMsg baseMsg) throws Exception {
MsgType msgType=baseMsg.getType();
switch (msgType){
case LOGIN:{
//向服务器发起登录
LoginMsg loginMsg=new LoginMsg();
loginMsg.setPassword("yao");
loginMsg.setUserName("robin");
channelHandlerContext.writeAndFlush(loginMsg);
}break;
case PING:{
System.out.println("receive ping from server----------");
}break;
case ASK:{
ReplyClientBody replyClientBody=new ReplyClientBody("client info **** !!!");
ReplyMsg replyMsg=new ReplyMsg();
replyMsg.setBody(replyClientBody);
channelHandlerContext.writeAndFlush(replyMsg);
}break;
case REPLY:{
ReplyMsg replyMsg=(ReplyMsg)baseMsg;
ReplyServerBody replyServerBody=(ReplyServerBody)replyMsg.getBody();
System.out.println("receive client msg: "+replyServerBody.getServerInfo());
}
default:break;
}
ReferenceCountUtil.release(msgType);
}
@Override
public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws Exception {
Channel incoming = ctx.channel();
System.out.println("SimpleChatClient:"+incoming.remoteAddress()+"异常");
cause.printStackTrace();
ctx.close();
}
}