首先引入 netty 依赖
<dependency>
<groupId>io.netty</groupId>
<artifactId>netty-all</artifactId>
<version>4.1.72.Final</version>
</dependency>而后是一个简略的测试类
public class App {public static void main(String[] args) throws Exception {EventLoopGroup bossGroup = new NioEventLoopGroup(1);
EventLoopGroup workerGroup = new NioEventLoopGroup(Runtime.getRuntime().availableProcessors());
ServerBootstrap b = new ServerBootstrap();
b.group(bossGroup, workerGroup).channel(NioServerSocketChannel.class).option(ChannelOption.SO_BACKLOG, 1024)
.childOption(ChannelOption.ALLOCATOR, PooledByteBufAllocator.DEFAULT)
.childHandler(new ChannelInitializer<Channel>() {
@Override
protected void initChannel(Channel ch) throws Exception {ch.pipeline().addLast(new HttpServerCodec());
ch.pipeline().addLast(new HttpObjectAggregator(1 * 1024 * 1024));
ch.pipeline().addLast(new HttpHandler());
}
}).bind(1601).sync().channel().closeFuture().sync();
}
}
class HttpHandler extends SimpleChannelInboundHandler<FullHttpRequest> {
@Override
protected void channelRead0(ChannelHandlerContext ctx, FullHttpRequest request) throws Exception {boolean success = request.decoderResult().isSuccess();
System.out.println(success);
ByteBuf bb1 = Unpooled.wrappedBuffer("北京欢送你 \n".getBytes());
ByteBuf bb2 = Unpooled.wrappedBuffer("为你开天辟地 \n".getBytes());
ByteBuf target = Unpooled.wrappedBuffer(bb1, bb2);
FullHttpResponse fullHttpResponse = new DefaultFullHttpResponse(HttpVersion.HTTP_1_1, HttpResponseStatus.OK, target);
fullHttpResponse.headers().set(HttpHeaderNames.CONTENT_TYPE, "text/plain;charset=utf-8");
ctx.writeAndFlush(fullHttpResponse).addListener(new ChannelFutureListener() {
@Override
public void operationComplete(ChannelFuture future) throws Exception {ctx.close();
}
});
}
}启动服务，实现！