RxNetty是Netty的Reactive扩展

14-08-20 banq
    

RxNetty是将Reactive异步机制(类似Node.js)带入了Netty.

下面使用代码:

import io.netty.buffer.ByteBuf;
import io.netty.handler.codec.http.HttpResponseStatus;
import io.reactivex.netty.RxNetty;
import io.reactivex.netty.protocol.http.server.HttpServer;

import java.nio.charset.Charset;

public final class RxNettyExample {

    public static void main(String... args) throws InterruptedException {
        HttpServer<ByteBuf, ByteBuf> server = RxNetty.createHttpServer(8080, (request, response) -> {
            System.out.println("Server => Request: " + request.getPath());
            try {
                if ("/error".equals(request.getPath())) {
                    throw new RuntimeException("forced error");
                }
                response.setStatus(HttpResponseStatus.OK);
                response.writeString("Path Requested =>: " + request.getPath() + '\n');
                return response.close();
            } catch (Throwable e) {
                System.err.println("Server => Error [" + request.getPath() + "] => " + e);
                response.setStatus(HttpResponseStatus.BAD_REQUEST);
                response.writeString("Error 500: Bad Request\n");
                return response.close();
            }
        });

        server.start();

        RxNetty.createHttpGet("http://localhost:8080/")
               .flatMap(response -> response.getContent())
               .map(data -> "Client => " + data.toString(Charset.defaultCharset()))
               .toBlocking().forEach(System.out::println);

        RxNetty.createHttpGet("http://localhost:8080/error")
               .flatMap(response -> response.getContent())
               .map(data -> "Client => " + data.toString(Charset.defaultCharset()))
               .toBlocking().forEach(System.out::println);

        RxNetty.createHttpGet("http://localhost:8080/data")
               .flatMap(response -> response.getContent())
               .map(data -> "Client => " + data.toString(Charset.defaultCharset()))
               .toBlocking().forEach(System.out::println);

        server.shutdown();
    }
}
<p>

输出:

Server => Request: /
Client => Path Requested =>: /

Server => Request: /error
Server => Error [/error] => java.lang.RuntimeException: forced error
Client => Error 500: Bad Request

Server => Request: /data
Client => Path Requested =>: /data
<p>

    

1