@ServerEndpoint在Spring boot v2.3.7上不起作用

Question

服务器正在运行，但我不能使用chatendpoint.java类。所以spring不使用/user路径。我无法连接ws://localhost:8080/user。当我尝试它的时候，我得到了错误

@ServerEndpoint(value = "/user")
public class ChatEndpoint {
    private Session session;
    private static final Set<ChatEndpoint> chatEndpoints = new CopyOnWriteArraySet<>();
    private static HashMap<String, String> users = new HashMap<>();

    @OnOpen
    public void OnOpen (Session session) {
        System.out.println(" asdasd");
        System.out.println(session.toString()+" asdasd");
    }
      @OnMessage
    public void onMessage(Session session, Message message) throws 
    IOException, EncodeException {
       System.out.println("send message");

    }
}

@Configuration
@EnableWebSocket
public class WebSocketConfig  {

    @Bean
    public ServerEndpointExporter endpointExporter(){
        return new ServerEndpointExporter();
    }
}

@SpringBootApplication
public class WebsocketdemoApplication {

    public static void main(String[] args) {
        SpringApplication.run(WebsocketdemoApplication.class, args);
    }

}

我使用spring-boot-starter-websocket 2.3.7.RELEASE和spring-websocket 5.2.12.RELEASE

    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-websocket</artifactId>
        <version>2.3.7.RELEASE</version>
    </dependency>
    <!-- https://mvnrepository.com/artifact/org.springframework/spring-messaging -->
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-messaging</artifactId>
        <version>5.2.12.RELEASE</version>
    </dependency>
    <!-- https://mvnrepository.com/artifact/org.springframework/spring-websocket -->
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-websocket</artifactId>
        <version>5.2.12.RELEASE</version>
    </dependency>
    <!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-web -->
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
        <version>2.3.7.RELEASE</version>
    </dependency>

Answer 1

我找到了解决方案。删除@EnableWebSocket，因为我使用的是@serverendpoint注释，它提供了特定的websocket句柄。第二，我有

    @OnMessage
public void onMessage(Session session, Message message) throws IOException, EncodeException {
    System.out.println("send message");
   
}

消息消息参数导致编译错误我用字符串消息参数更改了它。并将@component添加到Chatendpoint类。因为spring和tomcat可以理解它是一个组件。

       @Component
    @ServerEndpoint(value = "/user")
    public class ChatEndpoint {

    @OnOpen
    public void OnOpen (Session session) {
        
    }
   
       @OnMessage
    public void onMessage(Session session, String message) throws IOException, EncodeException {
        System.out.println("send message");
       
    }
}