第一： pom 配置文件：
javax.websocket
javax.websocket-api
1.0
provided<!--这个是从网上看的是为了解决jar包冲突的 -->
org.springframework
spring-websocket
4.1.6.RELEASE
org.springframework
spring-messaging
4.1.6.RELEASE
第二步： 【注册，启动 websocket server 和 握手拦截器 】
@Configuration
@EnableWebSocket
public class WebSocketConfig implements WebSocketConfigurer {
@Override
public void registerWebSocketHandlers(WebSocketHandlerRegistry registry) {
System.out.println("....注册......");
registry.addHandler(myhandler(), "/websocket").addInterceptors(myInterceptors()).setAllowedOrigins("*");
registry.addHandler(myhandler(), "/sockjs/websocket").addInterceptors(myInterceptors()).withSockJS();
}
@Bean
public WebSocketHandler myhandler() {
System.out.println("....服务端......");
return new WebsocketEndPoint();
}
@Bean
public HandshakeInterceptor myInterceptors() {
System.out.println("....握手拦截器......");
return new HandshakeInterceptor();
}
}
public class WebsocketEndPoint extends TextWebSocketHandler {
private Logger logger = LoggerFactory.getLogger(WebsocketEndPoint.class);
@Override
protected void handleTextMessage(WebSocketSession session, TextMessage message) throws Exception {
super.handleTextMessage(session, message);
logger.debug("GOMA === > WebSocketEndPoint.handlerTextMessage...");
TextMessage returnMessage = new TextMessage(message.getPayload()+" received at server");
session.sendMessage(returnMessage);
}
}
public class HandshakeInterceptor extends HttpSessionHandshakeInterceptor {
private Logger logger = Logger.getLogger(getClass());
@Override
public boolean beforeHandshake(ServerHttpRequest request,
ServerHttpResponse response, WebSocketHandler wsHandler,
Map attributes) throws Exception {
logger.debug("GOMA ===> Before Handshake");
return super.beforeHandshake(request, response, wsHandler, attributes);
}
@Override
public void afterHandshake(ServerHttpRequest request,
ServerHttpResponse response, WebSocketHandler wsHandler,
Exception ex) {
logger.debug("GOMA ===> After Handshake");
super.afterHandshake(request, response, wsHandler, ex);
}
}
第三步：页面 client
我的tomcat 的端口是 9018
socket = new WebSocket('ws://localhost:9018/testSocket/websocket');
运行报错：
WebSocket connection to 'ws://localhost:9018/testSocket/websocket' failed: Error during WebSocket handshake: Unexpected response code: 400
这是为啥？ 都配置了 ，为啥 是404 奇怪~~~ 那个大神给我解决一下