结合Netty和Spring MVC [英] Combine Netty and Spring MVC

问题描述

如何在Spring MVC中配置Netty。何时何地应该启动Netty tcp服务器？一旦Spring开始，我应该初始化netty吗？有人可以给我看一个例子，比如Spring配置xml文件或eles吗？
谢谢！

How can I configure Netty in Spring MVC. When and where should I start the Netty tcp server? Should I init netty once the Spring starts? Could someone show me an example such as the Spring configuration xml file or something eles? Thanks!

推荐答案

这真的取决于你使用Netty的原因。假设您将其用作在单独端口上运行的嵌入式HTTP服务器，您可以简单地在Spring bean中初始化它。我过去使用一个名为 Nettosphere 的有用的Netty / Atmosphere包装器实现了这一点：

It really depends what you are using Netty for. Assuming you are using it as an embedded HTTP server running on a separate port, you could simply initialise it within a Spring bean. I've achieved this in the past using a useful Netty/Atmosphere wrapper called Nettosphere:

@Service
public class NettyServer implements ServletContextAware {

    private ServletContext servletContext;

    private Nettosphere server;

    @Autowired
    private MyStatusHandler statusHandler;

    @PostConstruct
    public void initialiseNettyServer() {
            String rootPath = servletContext.getContextPath() + "/api";

            server = new Nettosphere.Builder().config(
                    new Config.Builder()
                            .host(SERVER_HOST)
                            .port(SERVER_PORT)
                            .resource(rootPath + "/status", statusHandler)
                            .build())
                     .build();
            server.start();
    }

    @PreDestroy
    public void shutdownNettyServer() {
            server.stop();
    }

}

这假定基于注释的配置在Spring中，您可以使用XML轻松实现相同的结果，如 Jonathan的回答中所述。

This assumes the annotation-based configuration in Spring, you can easily achieve the same result using XML as explained in Jonathan's answer.

当然，您可能更喜欢直接使用Netty，在这种情况下适用相同的原则，但您需要深入研究 Netty用户指南，以便正确引导服务器。

Of course, you may prefer to use Netty directly, in which case the same principle applies, but you will need to dig into the Netty user guide a bit to bootstrap the server correctly.

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