在Netty Reactor HTTP Server中,要正确发送Mono<ResponseEntity>作为JSON响应,可以按照以下步骤进行操作:
<dependency>
<groupId>io.projectreactor.netty</groupId>
<artifactId>reactor-netty</artifactId>
<version>VERSION</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-webflux</artifactId>
</dependency>
其中,VERSION是指定的Reactor Netty版本号。
HttpServerRoutes
来定义路由。在这个Handler类中,你可以使用Mono<ResponseEntity>
作为响应类型。import org.springframework.http.ResponseEntity;
import org.springframework.web.reactive.function.server.HandlerFunction;
import org.springframework.web.reactive.function.server.RouterFunctions;
import org.springframework.web.reactive.function.server.ServerRequest;
import org.springframework.web.reactive.function.server.ServerResponse;
import reactor.core.publisher.Mono;
public class MyHandler {
public Mono<ServerResponse> handleRequest(ServerRequest request) {
Mono<ResponseEntity> responseMono = // 构建你的响应Mono<ResponseEntity>,可以使用WebClient等方式获取数据
return responseMono.flatMap(responseEntity -> ServerResponse.ok().bodyValue(responseEntity));
}
public RouterFunction<ServerResponse> routes() {
return RouterFunctions.route()
.GET("/api/endpoint", this::handleRequest)
.build();
}
}
import io.netty.channel.ChannelOption;
import io.netty.handler.codec.http.HttpHeaderNames;
import io.netty.handler.codec.http.HttpHeaderValues;
import io.netty.handler.ssl.SslContextBuilder;
import io.netty.handler.ssl.util.InsecureTrustManagerFactory;
import io.netty.handler.timeout.ReadTimeoutHandler;
import io.netty.handler.timeout.WriteTimeoutHandler;
import org.springframework.http.MediaType;
import org.springframework.http.server.reactive.ReactorHttpHandlerAdapter;
import org.springframework.web.reactive.function.server.RouterFunction;
import reactor.netty.http.server.HttpServer;
import java.time.Duration;
public class NettyServer {
public static void main(String[] args) throws Exception {
RouterFunction<ServerResponse> router = new MyHandler().routes();
ReactorHttpHandlerAdapter handlerAdapter = new ReactorHttpHandlerAdapter(RouterFunctions.toHttpHandler(router));
HttpServer server = HttpServer.create()
.port(8080)
.tcpConfiguration(tcpServer -> tcpServer
.option(ChannelOption.CONNECT_TIMEOUT_MILLIS, 10000)
.doOnConnection(conn -> conn
.addHandlerLast(new ReadTimeoutHandler(10))
.addHandlerLast(new WriteTimeoutHandler(10))
)
)
.secure(sslContextSpec -> sslContextSpec.sslContext(
SslContextBuilder.forServer(ClassLoader.getSystemResource("server.crt").openStream(),
ClassLoader.getSystemResource("server.pem").openStream(), "password")
.trustManager(InsecureTrustManagerFactory.INSTANCE)
))
.handle(handlerAdapter);
server.bindUntilJavaShutdown(Duration.ofSeconds(30), disposableServer -> {
System.out.println("Netty server started on port " + disposableServer.port());
});
}
}
在上述代码中,我们创建了一个Netty HTTP服务器,并将Handler类的路由注册到服务器中。在handleRequest
方法中,我们可以构建一个Mono<ResponseEntity>
作为响应。使用flatMap
操作符将responseEntity
转换为ServerResponse
对象,并使用ServerResponse.ok().bodyValue(responseEntity)
将其作为JSON响应返回。
这样,当客户端发送GET请求到/api/endpoint
时,Netty服务器将调用handleRequest
方法处理请求,并返回Mono<ResponseEntity>
作为JSON响应。
注意:上述代码仅为示例,实际应用中可能需要根据具体需求进行适当的修改和优化。
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