如何在spring boot 2中配置netty

Question

默认情况下,spring web flux使用netty,它是单线程事件循环.如何配置spring boot以便为每个核心创建一个线程.

谢谢,

LOKESH

Answer 1

如Spring Boot参考文档中所述，您可以使用来定制Reactor Netty Web服务器NettyServerCustomizer。

这是Spring Boot 2.1的一个例子：

@Component
public class MyNettyWebServerCustomizer
        implements WebServerFactoryCustomizer<NettyReactiveWebServerFactory> {

    @Override
    public void customize(NettyReactiveWebServerFactory factory) {
        factory.addServerCustomizers(new EventLoopNettyCustomizer());
    }
}

class EventLoopNettyCustomizer implements NettyServerCustomizer {

    @Override
    public HttpServer apply(HttpServer httpServer) {
        EventLoopGroup eventLoopGroup = //...;
        return httpServer.tcpConfiguration(tcpServer ->
                tcpServer.bootstrap(serverBootstrap
                        -> serverBootstrap.group(eventLoopGroup)));
    }
}