Spring consolidation WebSocket Injection service failure problem

The pit you stepped on in the morning, it is necessary to record!

Problem: Spring consolidation WebSocket Injection service failed

Solution:

Step one: Add a jar package to the Pom.xml file

<dependency>
    <groupId>org.springframework</groupId>    

    <artifactId>spring-websocket</artifactId>
    <version>4.0.0.RELEASE</version>
</dependency>

Step Two: Add configurator = springconfigurator.class on the server side

@ServerEndpoint (value = "/api/websocket", configurator = springconfigurator.class)
@Component public
class Websocketservice {
	@Autowired
	

}

Step three: You need to configure Application-context.xml in Web.xml

<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath*:application-context.xml</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.contextloaderlistener
</listener-class>
</listener>