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package lbtech.server;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import io.netty.buffer.ByteBuf;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.SimpleChannelInboundHandler;
import io.netty.handler.timeout.IdleState;
import io.netty.handler.timeout.IdleStateEvent;
/**
* 实际的业务处理类
*
* @author DF
*
*/
public class NioServerHandler extends SimpleChannelInboundHandler<String> {
/**
* 日志对象
*/
protected Logger logger = LoggerFactory.getLogger(NioServerHandler.class);
@Override
public void channelRegistered(ChannelHandlerContext ctx) throws Exception {
// TODO Auto-generated method stub
super.channelRegistered(ctx);
logger.info("--------server channelRegistered-------");
}
@Override
protected void channelRead0(ChannelHandlerContext ctx, String msg)
throws Exception {
logger.info("server--->收到客户端发的消息:" + msg);
GatewayService.add("11", ctx.channel());
}
@Override
public void channelActive(ChannelHandlerContext ctx) throws Exception {
super.channelActive(ctx);
ctx.writeAndFlush("你好。。。。");
logger.info("--------server channelActive-------");
}
/**
* 响应netty 心跳 这个可以给客户端发送一些特定包 来标识
*/
@Override
public void userEventTriggered(ChannelHandlerContext ctx, Object evt)
throws Exception {
super.userEventTriggered(ctx, evt);
if (evt instanceof IdleStateEvent) {
IdleStateEvent e = (IdleStateEvent) evt;
//多少秒没有读
if (e.state() == IdleState.READER_IDLE) {
logger.info("读超时.....");
} else if (e.state() == IdleState.WRITER_IDLE) {//多少秒没有写
//ctx.close();
logger.info("写超时.....");
}else if (e.state() == IdleState.ALL_IDLE) { //总时间
logger.info("总超时.....");
//ctx.close();
//可以发包了， 然后发出去后 客户单回应一个 这时就不会进入read了 来判断心跳
}
}
}
@Override
public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause)
throws Exception {
try {
super.exceptionCaught(ctx, cause);
} catch (Exception e) {
logger.info("server exception ....关闭连接");
ctx.close();
}
}
}