content: package com.us.example.config;
  
  import org.springframework.context.annotation.Configuration;
  import org.springframework.messaging.simp.config.MessageBrokerRegistry;
  import org.springframework.web.socket.config.annotation.AbstractWebSocketMessageBrokerConfigurer;
  import org.springframework.web.socket.config.annotation.EnableWebSocketMessageBroker;
  import org.springframework.web.socket.config.annotation.StompEndpointRegistry;
  
  /**
   * Created by yangyibo on 16/12/29.
   */
  @Configuration
  @EnableWebSocketMessageBroker
  //通过EnableWebSocketMessageBroker 开启使用STOMP协议来传输基于代理(message broker)的消息,此时浏览器支持使用@MessageMapping 就像支持@RequestMapping一样。
  public class WebSocketConfig extends AbstractWebSocketMessageBrokerConfigurer{
  
  
      @Override
      public void registerStompEndpoints(StompEndpointRegistry registry) { //endPoint 注册协议节点,并映射指定的URl
  
          //注册一个Stomp 协议的endpoint,并指定 SockJS协议
          registry.addEndpoint("/endpointWisely").withSockJS();
  
          //注册一个名字为"endpointChat" 的endpoint,并指定 SockJS协议。   点对点-用
          registry.addEndpoint("/endpointChat").withSockJS();
      }
  
  
      @Override
      public void configureMessageBroker(MessageBrokerRegistry registry) {//配置消息代理(message broker)
          //广播式应配置一个/topic 消息代理
          registry.enableSimpleBroker("/topic");
  
          //点对点式增加一个/queue 消息代理
          registry.enableSimpleBroker("/queue","/topic");
  
      }
  }
  