spring websocket的应用

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spring4之后的一个新特性就是整合了websocket

首先在pom.xml加入

<dependency>
           <groupId>org.springframework</groupId>
           <artifactId>spring-websocket</artifactId>
           <version>4.2.8.RELEASE</version>
       </dependency>

然后利用@Configuration配置websocket

@Configuration
@EnableWebSocket
public class WebSocketConfig implements WebSocketConfigurer {

   @Override
   public void registerWebSocketHandlers(WebSocketHandlerRegistry registry) {
       // TODO Auto-generated method stub
       System.out.println("启动websocket");
       registry.addHandler(new TestHandler(), "/test").addInterceptors(new HandshakeInterceptor());
   }

}

其中“/test”就是url，后面可以增加一个拦截器。

public class TestHandler extends TextWebSocketHandler {

   @Override
   protected void handleTextMessage(WebSocketSession session, TextMessage message) throws Exception {
      //具体的业务逻辑写在这
   }

   @Override
   public void afterConnectionEstablished(WebSocketSession session) throws Exception {
       // TODO Auto-generated method stub
       System.out.println("websocket启动");
   }

   @Override
   public void handleTransportError(WebSocketSession session, Throwable exception) throws Exception {
       // TODO Auto-generated method stub
       System.out.println(exception);
   }

   @Override
   public void afterConnectionClosed(WebSocketSession session, CloseStatus status) throws Exception {
       // TODO Auto-generated method stub
       System.out.println("连接关闭");
   }

}

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