| 提交 | 用户 | 时间 | ||
| e57a89 | 1 | package com.jcdm.framework.websocket; |
| 懒 | 2 | |
| 3 | import java.util.concurrent.Semaphore; | |
| 4 | import javax.websocket.OnClose; | |
| 5 | import javax.websocket.OnError; | |
| 6 | import javax.websocket.OnMessage; | |
| 7 | import javax.websocket.OnOpen; | |
| 8 | import javax.websocket.Session; | |
| 9 | import javax.websocket.server.PathParam; | |
| 10 | import javax.websocket.server.ServerEndpoint; | |
| 11 | import org.slf4j.Logger; | |
| 12 | import org.slf4j.LoggerFactory; | |
| 13 | import org.springframework.stereotype.Component; | |
| 14 | ||
| 15 | /** | |
| 16 | * websocket 消息处理 | |
| 17 | * | |
| 18 | * @author ruoyi | |
| 19 | */ | |
| 20 | @Component | |
| 21 | @ServerEndpoint("/websocket/message/{userId}") | |
| 22 | public class WebSocketServer | |
| 23 | { | |
| 24 | /** | |
| 25 | * WebSocketServer 日志控制器 | |
| 26 | */ | |
| 27 | private static final Logger LOGGER = LoggerFactory.getLogger(WebSocketServer.class); | |
| 28 | ||
| 29 | /** | |
| 30 | * 默认最多允许同时在线人数100 | |
| 31 | */ | |
| 32 | public static int socketMaxOnlineCount = 100; | |
| 33 | ||
| 34 | private static Semaphore socketSemaphore = new Semaphore(socketMaxOnlineCount); | |
| 35 | ||
| 36 | /**接收userId*/ | |
| 37 | private String userId=""; | |
| 38 | ||
| 39 | /** | |
| 40 | * 连接建立成功调用的方法 | |
| 41 | */ | |
| 42 | @OnOpen | |
| 43 | public void onOpen(Session session, @PathParam("userId") String userId) throws Exception | |
| 44 | { | |
| 45 | boolean semaphoreFlag = false; | |
| 46 | // 尝试获取信号量 | |
| 47 | semaphoreFlag = SemaphoreUtils.tryAcquire(socketSemaphore); | |
| 48 | if (!semaphoreFlag) | |
| 49 | { | |
| 50 | // 未获取到信号量 | |
| 51 | LOGGER.error("\n 当前在线人数超过限制数- {}", socketMaxOnlineCount); | |
| 52 | WebSocketUsers.sendMessageToUserByText(session, "当前在线人数超过限制数：" + socketMaxOnlineCount); | |
| 53 | session.close(); | |
| 54 | } | |
| 55 | else | |
| 56 | { | |
| 57 | // 添加用户 | |
| 58 | // WebSocketUsers.put(session.getId(), session); | |
| 59 | WebSocketUsers.put(userId, session); | |
| 60 | LOGGER.info("\n 建立连接 - {}", session); | |
| 61 | LOGGER.info("\n 当前人数 - {}", WebSocketUsers.getUsers().size()); | |
| 62 | WebSocketUsers.sendMessageToUserByText(session, "连接成功"); | |
| 63 | } | |
| 64 | } | |
| 65 | ||
| 66 | /** | |
| 67 | * 连接关闭时处理 | |
| 68 | */ | |
| 69 | @OnClose | |
| 70 | public void onClose(Session session) | |
| 71 | { | |
| 72 | LOGGER.info("\n 关闭连接 - {}", session); | |
| 73 | // 移除用户 | |
| 74 | WebSocketUsers.remove(session.getId()); | |
| 75 | // 获取到信号量则需释放 | |
| 76 | SemaphoreUtils.release(socketSemaphore); | |
| 77 | } | |
| 78 | ||
| 79 | /** | |
| 80 | * 抛出异常时处理 | |
| 81 | */ | |
| 82 | @OnError | |
| 83 | public void onError(Session session, Throwable exception) throws Exception | |
| 84 | { | |
| 85 | if (session.isOpen()) | |
| 86 | { | |
| 87 | // 关闭连接 | |
| 88 | session.close(); | |
| 89 | } | |
| 90 | String sessionId = session.getId(); | |
| 91 | LOGGER.info("\n 连接异常 - {}", sessionId); | |
| 92 | LOGGER.info("\n 异常信息 - {}", exception); | |
| 93 | // 移出用户 | |
| 94 | WebSocketUsers.remove(sessionId); | |
| 95 | // 获取到信号量则需释放 | |
| 96 | SemaphoreUtils.release(socketSemaphore); | |
| 97 | } | |
| 98 | ||
| 99 | /** | |
| 100 | * 服务器接收到客户端消息时调用的方法 | |
| 101 | */ | |
| 102 | @OnMessage | |
| 103 | public void onMessage(String message, Session session) | |
| 104 | { | |
| 105 | String msg = message.replace("你", "我").replace("吗", ""); | |
| 106 | // WebSocketUsers.sendMessageToUserByText(session, msg); | |
| 107 | } | |
| 108 | } | |
