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in Technique[技术] by (71.8m points)

websocket端点无法获取spring的组件

@ServerEndpoint(value = "/chat/{token}")
@Component
public class ChatEndpoint {
 //用来存储每一个客户端对象对应的ChatEndpoint对象
 private static Map onlineUsers = new ConcurrentHashMap<>();
 @Autowired
 private MessageService messageService;
 }

这是一个websocket的端点,无法获取的组件messageService,当然这个组件在controller可以获得的,不是它的问题。

@Service
public class MessageServiceImpl implements MessageService {}

我应该才能获取得到在websocket端点获取spring的组件呢?

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问题出现的环境背景及自己尝试过哪些方法

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1 Answer

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by (71.8m points)

自己的问题自己解决。

@Configuration
public class WebSocketConfig {
    @Bean
 //注入ServerEndpointExporter,自动注册使用@ServerEndpoint注解的
 public ServerEndpointExporter serverEndpointExporter() {
        return new ServerEndpointExporter();
    }
    //解决websocket注入问题
 @Autowired
 public void setMessageService(MessageService messageService){
        ChatEndpoint.messageService = messageService;
    }
}
@ServerEndpoint(value = "/chat/{token}")
@Component
public class ChatEndpoint {
    //用来存储每一个客户端对象对应的ChatEndpoint对象
 private static Map<String,ChatEndpoint> onlineUsers = new ConcurrentHashMap<>();
    public static MessageService messageService;
}

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