websocket集成文档

1.添加依赖

<dependency>
	<groupId>org.springframework.boot</groupId>
	<artifactId>spring-boot-starter-websocket</artifactId>
</dependency>

2.添加配置

@Configuration
public class WebSocketConfig {
    @Bean
    public ServerEndpointExporter serverEndpointExporter() {
        return new ServerEndpointExporter();
    }
}

3.添加websocket处理器

@Setter@Getter
@ServerEndpoint("/{token}")
@Component
public class WebSocketServer {
    private Session session;
    public static ConcurrentHashMap<String,Session> clients = new ConcurrentHashMap<>();
    /**
     * 浏览器和服务器在建立连接
     * @param session
     * @param token
     */
    @OnOpen
    public void onOpen(Session session, @PathParam( "token") String token){
        System.out.println("客户端连接===>"+token);
        clients.put(token,session);
    }
    /**
     * 客户端发送消息
     * @param message
     * @param token
     */
    @OnMessage
    public void onMessage(String message, @PathParam( "token") String token){
        System.out.println("客户端:"+token+",发送消息:"+message);
        //发送消息
        clients.get(token).getAsyncRemote().sendText(message);
    }
    /**
     * 浏览器和服务器之间断开连接之后会调用此方法.
     * @param token
     */
    @OnClose
    public void onClose(@PathParam( "token") String token){
        System.out.println("客户端:"+token+",断开连接");
        //删除关系
        clients.remove(token);
    }
    /**
     * 通讯异常触发该事件
     * @param error
     */
    @OnError
    public void onError(Throwable error) {
        error.printStackTrace();
    }
}

4.提供接口获取浏览器发送的消息

@RestController
public class MsgContoller {
    @RequestMapping("/sendMsg")
    public String sendMsg(String token,String msg) throws IOException {
        Session session = OrderWebSocketServer.clients.get(token);
        session.getBasicRemote().sendText(msg);
        return "发送成功";
    }
}