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[英]Can't stat app. after updating SpringBoot from 2.0.6.RELEASE to 2.1.0.RELEASE
[英]Can't start Netty server in Spring Webflux 2.1.0.RELEASE
在我的Java應用程序中,我將Spring Webflux用作依賴項,例如:
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-webflux</artifactId>
<version>2.1.0.RELEASE</version>
</dependency>
</dependencies>
使用2.0.6.RELEASE版本,我可以使用以下代碼啟動Netty服務器:
public static void main(String[] args) {
RouterFunction<?> route;
route = route(GET("/hello"),
request -> {
Mono<String> hi = Mono.just("hi");
return ServerResponse.ok().contentType(TEXT_PLAIN).body(hi, String.class);
});
HttpHandler httpHandler = RouterFunctions.toHttpHandler(route);
ReactorHttpHandlerAdapter adapter =
new ReactorHttpHandlerAdapter(httpHandler);
HttpServer server = HttpServer.create("localhost", 8080);
server.startAndAwait(adapter);
}
但在2.1.0中無法編譯。 我也嘗試過類似的方法,但是仍然無法使它起作用。
HttpServer
.create()
.host("localhost")
.port(8080)
.handle(adapter)
.bind()
.block();
如何啟動Netty服務器?
https://docs.spring.io/spring/docs/current/spring-framework-reference/web-reactive.html#webflux-httphandler https://projectreactor.io/docs/netty/release/api/
您無需在Spring Boot應用程序中手動啟動服務器,只需將RouterFunction
聲明為@Bean
如下所示:
@Bean
public RouterFunction<ServerResponse> hello() {
return route(GET("/hello"),
request -> {
Mono<String> hi = Mono.just("hi");
return ServerResponse.ok().contentType(TEXT_PLAIN).body(hi, String.class);
});
}
Spring Boot使您免受支持的服務器中的基礎API更改的影響。
這里的main方法看起來並不像典型的Spring Boot main方法,所以我認為您實際上並不是在這里使用Spring Boot。 無論如何,這里有一個代碼片段可以解決您的問題; 從Reactor Netty 0.8開始, bind()
部分與實際的等待部分分開:
RouterFunction<?> route = RouterFunctions.route(RequestPredicates.GET("/hello"),
request -> {
Mono<String> hi = Mono.just("hi");
return ServerResponse.ok().contentType(MediaType.TEXT_PLAIN).body(hi, String.class);
});
HttpHandler httpHandler = RouterFunctions.toHttpHandler(route);
ReactorHttpHandlerAdapter adapter =
new ReactorHttpHandlerAdapter(httpHandler);
HttpServer server = HttpServer.create().host("localhost").port(8080);
DisposableServer disposableServer = server.handle(adapter).bind().block();
disposableServer.onDispose().block();
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