sPRing4之后的一個新特性就是整合了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@EnableWebSocketpublic class WebSocketConfig implements WebSocketConfigurer {    @Override    public void registerWebSocketHandlers(WebSocketHandlerRegistry registry) {        // TODO Auto-generated method stub        System.out.println("啟動websocket");        registry.addHandler(new TestHandler(), "/test").addInterceptors(new HandshakeInterceptor());    }}

其中“/test”就是url，后面可以增加一個攔截器。

public class TestHandler extends TextWebSocketHandler {    @Override    protected void handleTextMessage(WebSocketsession session, TextMessage message) throws Exception {      //具體的業務邏輯寫在這    }    @Override    public void afterConnectionEstablished(WebSocketSession session) throws Exception {        // TODO Auto-generated method stub        System.out.println("websocket啟動");    }    @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("連接關閉");    }}