https://github.com/farsunset/netty-http-server
Springboot项目中使用Netty来替代传统Web容器，提升性能，简化配置
https://github.com/farsunset/netty-http-server
Last synced: about 1 year ago
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Springboot项目中使用Netty来替代传统Web容器，提升性能，简化配置
- Host: GitHub
- URL: https://github.com/farsunset/netty-http-server
- Owner: farsunset
- License: apache-2.0
- Created: 2018-12-07T09:12:05.000Z (over 7 years ago)
- Default Branch: master
- Last Pushed: 2018-12-07T10:09:23.000Z (over 7 years ago)
- Last Synced: 2025-03-30T22:24:41.845Z (over 1 year ago)
- Language: Java
- Homepage:
- Size: 25.4 KB
- Stars: 79
- Watchers: 4
- Forks: 48
- Open Issues: 2
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
- awesome-java - Netty HTTP Server
README
#### 使用介绍
参见简书图文教程
## [https://www.jianshu.com/p/89403b1b314d](https://www.jianshu.com/p/89403b1b314d)
### 1启动 NettyServer
```
@Configuration
public class NettyHttpServer implements ApplicationListener {
private static final Logger LOGGER = LoggerFactory.getLogger(NettyHttpServer.class);
@Value("${server.port}")
private int port;
@Resource
private InterceptorHandler interceptorHandler;
@Resource
private HttpServerHandler httpServerHandler;
@Override
public void onApplicationEvent(@NonNull ApplicationStartedEvent event) {
ServerBootstrap bootstrap = new ServerBootstrap();
EventLoopGroup bossGroup = new NioEventLoopGroup();
EventLoopGroup workerGroup = new NioEventLoopGroup();
bootstrap.group(bossGroup, workerGroup);
bootstrap.channel(NioServerSocketChannel.class);
bootstrap.childOption(NioChannelOption.TCP_NODELAY, true);
bootstrap.childOption(NioChannelOption.SO_REUSEADDR,true);
bootstrap.childOption(NioChannelOption.SO_KEEPALIVE,false);
bootstrap.childOption(NioChannelOption.SO_RCVBUF, 2048);
bootstrap.childOption(NioChannelOption.SO_SNDBUF, 2048);
bootstrap.childHandler(new ChannelInitializer() {
@Override
public void initChannel(SocketChannel ch) {
ch.pipeline().addLast("codec", new HttpServerCodec());
ch.pipeline().addLast("aggregator", new HttpObjectAggregator(512 * 1024));
ch.pipeline().addLast("logging", new FilterLogginglHandler());
ch.pipeline().addLast("interceptor", interceptorHandler);
ch.pipeline().addLast("bizHandler", httpServerHandler);
}
})
;
ChannelFuture channelFuture = bootstrap.bind(port).syncUninterruptibly().addListener(future -> {
String logBanner = "\n\n" +
"* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *\n" +
"* *\n" +
"* *\n" +
"* Netty Http Server started on port {}. *\n" +
"* *\n" +
"* *\n" +
"* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *\n";
LOGGER.info(logBanner, port);
});
channelFuture.channel().closeFuture().addListener(future -> {
LOGGER.info("Netty Http Server Start Shutdown ............");
bossGroup.shutdownGracefully();
workerGroup.shutdownGracefully();
});
}
}
```
### 2实现HttpHandler 也就是SpringMvc的Controller
```
@NettyHttpHandler(path = "/hello/world")
public class HelloWorldHandler implements IFunctionHandler {
@Override
public Response execute(NettyHttpRequest request) {
return Response.ok("Hello World");
}
}
```
PathVariable
```
@NettyHttpHandler(path = "/moment/list/",equal = false)
public class PathVariableHandler implements IFunctionHandler>> {
@Override
public Response>> execute(NettyHttpRequest request) {
/**
* 通过请求uri获取到path参数
*/
String id = request.getStringPathValue(3);
List> list = new LinkedList<>();
HashMap data = new HashMap<>();
data.put("id","1");
data.put("name","Bluesky");
data.put("text","hello sea!");
data.put("time","2018-08-08 08:08:08");
list.add(data);
return Response.ok(list);
}
}
```
RequestBody
```
@NettyHttpHandler(path = "/request/body",method = "POST")
public class RequestBodyHandler implements IFunctionHandler {
@Override
public Response execute(NettyHttpRequest request) {
/**
* 可以在此拿到json转成业务需要的对象
*/
String json = request.contentText();
return Response.ok(json);
}
}
```
### 3执行请求查看效果
#### 优缺点
-------------------------------------------------------------------------------------------
优点
1 netty使用多路复用技术大幅提升性能
2 减少web容器依赖，减少jar包体积
3 灵活配置简单，适合所有需要提供restful接口的微服务应用
4 完全按照springmvc的模式开发配置
缺点
1 还没能做到和spirng DispatcherServlet那么强大到支持各种规则的path配置
2 获取各种参数还需要在controller里面通过HttpRequest来获取，没有springmvc自动注入参数方便
有问题欢迎随时提issues. Thanks