Java 无法使用mongodb测试功能终结点
我正在使用Spring数据反应式MongoDB存储库来无阻塞地保存新pojo。我的路由器功能是:Java 无法使用mongodb测试功能终结点,java,spring,spring-test,spring-webflux,Java,Spring,Spring Test,Spring Webflux,我正在使用Spring数据反应式MongoDB存储库来无阻塞地保存新pojo。我的路由器功能是: //other routes .andRoute(POST("/article/json"), articleHandler::createArticle); 处理函数为: public Mono<ServerResponse> createArticle(ServerRequest request) { Flux<Article> article
//other routes
.andRoute(POST("/article/json"), articleHandler::createArticle);
处理函数为:
public Mono<ServerResponse> createArticle(ServerRequest request) {
Flux<Article> article = request.bodyToFlux(Article.class);
articleRepository.insert(article).subscribe();
return ServerResponse.ok().build();
}
若我通过curl发送json数据,应用程序运行良好。但测试方法不起作用。并且日志中没有错误或任何插入文档事件:
2017-11-09 10:49:27.793 INFO 18224 --- [ Thread-4] org.mongodb.driver.connection : Opened connection [connectionId{localValue:6, serverValue:17563}] to 10.45.250.101:9017
2017-11-09 10:49:27.793 INFO 18224 --- [ Thread-5] org.mongodb.driver.connection : Opened connection [connectionId{localValue:5, serverValue:17562}] to 10.45.250.101:9017
2017-11-09 10:49:28.115 INFO 18224 --- [ Thread-11] .r.c.ReactiveWebServerApplicationContext : Closing org.springframework.boot.web.reactive.context.ReactiveWebServerApplicationContext@4e423aa2: startup date [Thu Nov 09 10:49:23 MSK 2017]; root of context hierarchy
2017-11-09 10:49:28.117 DEBUG 18224 --- [ Thread-11] o.s.d.r.l.RedisMessageListenerContainer : Stopped RedisMessageListenerContainer
2017-11-09 10:49:28.127 INFO 18224 --- [ Thread-11] org.mongodb.driver.connection : Closed connection [connectionId{localValue:4, serverValue:17561}] to 10.45.250.101:9017 because the pool has been closed.
2017-11-09 10:49:28.128 INFO 18224 --- [ Thread-11] org.mongodb.driver.connection : Closed connection [connectionId{localValue:3, serverValue:17560}] to 10.45.250.101:9017 because the pool has been closed.
2017-11-09 10:49:28.129 INFO 18224 --- [ Thread-11] org.mongodb.driver.connection : Closed connection [connectionId{localValue:5, serverValue:17562}] to 10.45.250.101:9017 because the pool has been closed.
2017-11-09 10:49:28.129 INFO 18224 --- [ Thread-11] org.mongodb.driver.connection : Closed connection [connectionId{localValue:6, serverValue:17563}] to 10.45.250.101:9017 because the pool has been closed.
2017-11-09 10:49:28.132 INFO 18224 --- [ Thread-11] r.ipc.netty.tcp.BlockingNettyContext : Stopped HttpServer on /0:0:0:0:0:0:0:0:61441
通过WebTestClient测试restful api的正确方法是什么?
蒂亚 您的测试正在运行,并且暗示了一个实际的bug 一般规则:在返回反应类型的方法中,绝不能调用
subscribe
。相反,应该从头到尾构建一个反应管道
错误解释
在这种情况下,调用subscribe
将触发保存操作,但不能保证方法在完成后返回subscribe
返回跟踪该操作完成(成功或错误)的Disposable
。保存该数据的实际工作可能发生在不同的线程中
当使用curl手动完成时,这是有效的,因为在服务器返回响应后,应用程序仍在运行。对于您的测试,应用程序在执行保存操作之前停止。保存操作尚未执行
您可以通过以下方式“修复”此问题:
public Mono<ServerResponse> createArticle(ServerRequest request) {
Flux<Article> article = request.bodyToFlux(Article.class);
articleRepository.insert(article).subscribe().block();
return ServerResponse.ok().build();
}
公共Mono createArticle(服务器请求){
Flux article=request.bodyToFlux(article.class);
articleRepository.insert(article.subscribe().block();
返回ServerResponse.ok().build();
}
但是,通过这种修复,你可以在你的反应管道中间引入一个阻塞操作——这是一个严重的性能问题。这样做可能会阻塞服务器的几个线程,并导致性能非常差
修正这个错误 修复程序如下所示(分解的内容比所需的要多,您可以将其缩短得多): 公共Mono createArticle(服务器请求){ 通量项目=request.bodyToFlux(Article.class); Flux savedArticles=articleRepository.insert(文章); 返回savedArticles.then(ServerResponse.ok().build()); } 与以前的解决方案相比,此修复方案有两个优点:- 它是完全异步、无阻塞的,背压信息被传送到整个管道
- 如果在保存数据时发生错误,这将导致对客户端的错误响应(您可以使用handy
Reactor操作符自定义内容)onError*
public Mono<ServerResponse> createArticle(ServerRequest request) {
Flux<Article> article = request.bodyToFlux(Article.class);
articleRepository.insert(article).subscribe().block();
return ServerResponse.ok().build();
}
public Mono<ServerResponse> createArticle(ServerRequest request) {
Flux<Article> articles = request.bodyToFlux(Article.class);
Flux<Article> savedArticles = articleRepository.insert(articles);
return savedArticles.then(ServerResponse.ok().build());
}