关于部署springboot项目时,出现“Error creating bean with name ‘bindingService‘ defined in class path”的错误记录

本文介绍在Spring Cloud项目中,同时引入RabbitMQ和Kafka依赖导致的问题及解决办法。当项目中未使用RabbitMQ时,仅引入其依赖会与Kafka产生冲突。解决此问题需注释掉spring-cloud-bus依赖。

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这个问题和mq相关,比如rabbitmq,kafka之类的。这次是在项目里引入了rabbitmq的依赖,但是项目里并没有用到rabbit,就想把依赖注释掉,结果就出现了这个问题。


org.springframework.cloud
spring-cloud-starter-stream-rabbit

引起这个问题的原因是:项目里还引入了kafka的依赖,就是这个

org.springframework.cloud
spring-cloud-bus

这是springcloud的消息总线,需要把这个依赖也注释掉才行。

### Spring Boot WebSocket Bean Creation Error When encountering an error while creating a bean named `webSocketHandlerMapping` in a Spring Boot application using WebSocket, several factors could contribute to this issue. The configuration settings provided offer insights into resource handling but do not directly address WebSocket configurations[^1]. However, understanding how beans are configured and managed within the context of WebSockets is crucial. In Spring Boot applications utilizing WebSocket, ensuring proper registration of handlers and mappings plays a vital role. If there's an error during the creation of the `webSocketHandlerMapping` bean, it often indicates misconfiguration or missing dependencies related specifically to WebSocket support rather than general resource management settings mentioned earlier. To resolve issues surrounding the creation of the `webSocketHandlerMapping` bean: - Verify that all necessary WebSocket-related dependencies have been included in the project’s build file (e.g., Maven POM or Gradle). - Ensure correct annotations such as `@EnableWebSocket`, along with appropriate handler classes implementing interfaces like `WebSocketHandler`. - Check for any conflicting configurations between standard MVC components and those specific to WebSocket functionality. Additionally, when configuring controllers interacting over WebSocket connections, consider patterns similar to RESTful service implementations where methods respond appropriately based on incoming requests[^2]: ```java @Configuration @EnableWebSocket public class WebSocketConfig implements WebSocketConfigurer { @Override public void registerWebSocketHandlers(WebSocketHandlerRegistry registry) { registry.addHandler(myWebSocketHandler(), "/ws").setAllowedOrigins("*"); } @Bean public MyWebSocketHandler myWebSocketHandler() { return new MyWebSocketHandler(); } } ``` For comprehensive testing purposes concerning asynchronous behaviors associated with WebSocket communications, tools listed provide valuable assistance through simplifying test scenarios involving concurrency and network interactions without relying solely upon actual external services[^3]: ```java // Example Test Using Awaitility for Asynchronous Operations Verification @Test public void shouldReceiveMessageViaWebSocket() throws Exception { given(). contentType(JSON). body(new Message("test"). expect(). statusCode(200); await().atMost(5, TimeUnit.SECONDS).until(() -> !receivedMessages.isEmpty()); } ```
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