spring整合websocket

最新推荐文章于 2025-07-08 23:28:04 发布

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最新推荐文章于 2025-07-08 23:28:04 发布

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分类专栏： java

本文链接：https://blog.youkuaiyun.com/u013068184/article/details/81977381

本文介绍了在Spring中整合WebSocket的两种方式，重点讲解了使用Spring-websocket的要求和遇到的Maven依赖问题，以及解决报错的策略。在实践中，由于版本不匹配导致的jar冲突和WebSocket消息乱码问题，作者提供了相应的解决方案，强调了bean和tag顺序的重要性。

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实现websocket有两种方式，一个是用tomcat的websocket，tomcat版本要求tomcat7.0.27以上，另外一个就是用spring整合好的的spring-websocket了，要求至少spring4.0版本以上，同时两者都需要JDK1.7以上。

maven引入spring-websocket时，pom.xml报错：
这里写图片描述

刚开始以为是与其他依赖版本冲突，折腾一番发现maven仓库并没成功下载到spring-websocket的jar包，测试了几个版本，发现只有4.3.5.RELEASE可以成功（这个要看仓库地址有没有提供依赖下载了）。
这里写图片描述
以下这个就是jar报冲突导致的报错了,解决办法就是spring-websocket的jar包要与spring等jar包的版本一致，本人用的都是4.3.5.RELEASE。

[ERROR] 2018-08-24 11:27:45 :Context initialization failed
 org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'webSocketHandlerMapping' defined in class path resource [org/springframework/web/socket/config/annotation/DelegatingWebSocketConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.web.servlet.HandlerMapping]: Factory method 'webSocketHandlerMapping' threw exception; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'WebSocketPushHandler': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire method: public void com.qly.b2b.controller.WebSocketPushHandler.afterConnectionEstablished(org.springframework.web.socket.WebSocketSession) throws java.lang.Exception; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [org.springframework.web.socket.WebSocketSession] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {}
	at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:599)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1123)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1018)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:510)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482)
	at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)
	at or