package com.oztf.common.netty;
import io.netty.bootstrap.Bootstrap;
import io.netty.channel.Channel;
import io.netty.channel.ChannelFuture;
import io.netty.channel.ChannelFutureListener;
import io.netty.channel.ChannelInitializer;
import io.netty.channel.ChannelOption;
import io.netty.channel.EventLoopGroup;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.socket.SocketChannel;
import io.netty.channel.socket.nio.NioSocketChannel;
import io.netty.handler.codec.protobuf.ProtobufDecoder;
import io.netty.handler.codec.protobuf.ProtobufEncoder;
import io.netty.handler.codec.protobuf.ProtobufVarint32FrameDecoder;
import io.netty.handler.codec.protobuf.ProtobufVarint32LengthFieldPrepender;
import java.util.UUID;
import com.google.protobuf.Any;
import com.oztf.common.protobuf.BaseProto;
import com.oztf.common.protobuf.BrnnProto;
import com.oztf.common.protobuf.UserProto;
public class NettyClient {
private Channel channel;
public Channel connect(String host, int port) {
doConnect(host, port);
return this.channel;
}
private void doConnect(String host, int port) {
EventLoopGroup workerGroup = new NioEventLoopGroup();
try {
Bootstrap b = new Bootstrap();
b.group(workerGroup);
b.channel(NioSocketChannel.class);
b.option(ChannelOption.CONNECT_TIMEOUT_MILLIS, 1000);
b.handler(new ChannelInitializer<SocketChannel>() {
@Override
public void initChannel(SocketChannel ch) throws Exception {
// 实体类传输数据,protobuf序列化
ch.pipeline().addLast(new ProtobufVarint32FrameDecoder());
ch.pipeline().addLast(new ProtobufDecoder(BaseProto.Base.getDefaultInstance()));
ch.pipeline().addLast(new ProtobufVarint32LengthFieldPrepender());
ch.pipeline().addLast(new ProtobufEncoder());
ch.pipeline().addLast(new ProtoBufServerHandler());
}
});
ChannelFuture f = b.connect(host, port).sync();
f.addListener(new ChannelFutureListener() {
public void operationComplete(ChannelFuture future) throws Exception {
if(future.isSuccess()){
System.out.println("client connected111");
}else{
System.out.println("server attemp failed22");
future.cause().printStackTrace();
}
}
});
channel = f.channel();
} catch(Exception e) {
e.printStackTrace();
}
}
}
来源:CSDN
作者:swj_soft
链接:https://blog.csdn.net/swj_soft/article/details/104041542