| New file |
| | |
| | | package com.ruoyi.web.controller.api; |
| | | |
| | | import com.alibaba.fastjson.JSONObject; |
| | | import com.ruoyi.common.utils.StringUtils; |
| | | import com.ruoyi.framework.web.service.TokenService; |
| | | import lombok.extern.slf4j.Slf4j; |
| | | import org.springframework.beans.factory.annotation.Autowired; |
| | | import org.springframework.stereotype.Component; |
| | | |
| | | import javax.websocket.*; |
| | | import javax.websocket.server.PathParam; |
| | | import javax.websocket.server.ServerEndpoint; |
| | | import java.io.IOException; |
| | | import java.util.Map; |
| | | import java.util.Set; |
| | | import java.util.concurrent.ConcurrentHashMap; |
| | | |
| | | |
| | | @Component |
| | | @Slf4j |
| | | @ServerEndpoint("/open/pushMessageSolo/{userId}") |
| | | public class WebSocketServerSolo { |
| | | |
| | | /**静态变量,用来记录当前在线连接数。应该把它设计成线程安全的。*/ |
| | | private static int onlineCount = 0; |
| | | /**concurrent包的线程安全Set,用来存放每个客户端对应的WebSocket对象。*/ |
| | | private static ConcurrentHashMap<String, WebSocketServerSolo> webSocketMap = new ConcurrentHashMap<>(); |
| | | /**与某个客户端的连接会话,需要通过它来给客户端发送数据*/ |
| | | private Session session; |
| | | /**接收userId*/ |
| | | private String userId = ""; |
| | | |
| | | @Autowired |
| | | private TokenService tokenService; |
| | | |
| | | /** |
| | | * 连接建立成 |
| | | * 功调用的方法 |
| | | */ |
| | | @OnOpen |
| | | public void onOpen(Session session, @PathParam("userId") String userId) { |
| | | this.session = session; |
| | | this.userId=userId; |
| | | // userId = String.valueOf(tokenService.getLoginUser().getUser().getUserId()); |
| | | if(webSocketMap.containsKey(userId)){ |
| | | webSocketMap.remove(userId); |
| | | //加入set中 |
| | | webSocketMap.put(userId,this); |
| | | }else{ |
| | | //加入set中 |
| | | webSocketMap.put(userId,this); |
| | | //在线数加1 |
| | | addOnlineCount(); |
| | | } |
| | | log.info("用户连接:"+userId+",当前在线人数为:" + getOnlineCount()); |
| | | sendMessage("连接成功"); |
| | | } |
| | | |
| | | /** |
| | | * 连接关闭 |
| | | * 调用的方法 |
| | | */ |
| | | @OnClose |
| | | public void onClose() { |
| | | if(webSocketMap.containsKey(userId)){ |
| | | webSocketMap.remove(userId); |
| | | //从set中删除 |
| | | subOnlineCount(); |
| | | } |
| | | log.info("用户退出:"+userId+",当前在线人数为:" + getOnlineCount()); |
| | | } |
| | | |
| | | /** |
| | | * 收到客户端消 |
| | | * 息后调用的方法 |
| | | * @param message |
| | | * 客户端发送过来的消息 |
| | | **/ |
| | | @OnMessage |
| | | public void onMessage(String message, Session session) { |
| | | log.info("用户消息:"+userId+",报文:"+message); |
| | | //可以群发消息 |
| | | //消息保存到数据库、redis |
| | | if(StringUtils.isNotBlank(message)){ |
| | | try { |
| | | //解析发送的报文 |
| | | JSONObject jsonObject = JSONObject.parseObject(message); |
| | | //追加发送人(防止串改) |
| | | jsonObject.put("fromUserId",this.userId); |
| | | String toUserId=jsonObject.getString("toUserId"); |
| | | String myUserId=jsonObject.getString("myUserId"); |
| | | //传送给对应toUserId用户的websocket |
| | | if(StringUtils.isNotBlank(toUserId)&&webSocketMap.containsKey(toUserId)){ |
| | | webSocketMap.get(toUserId).sendMessage(message); |
| | | }else{ |
| | | //否则不在这个服务器上,发送到mysql或者redis |
| | | log.error("请求的userId:"+toUserId+"不在该服务器上"); |
| | | } |
| | | if(StringUtils.isNotBlank(myUserId)&&webSocketMap.containsKey(myUserId)){ |
| | | webSocketMap.get(myUserId).sendMessage(message); |
| | | }else{ |
| | | //否则不在这个服务器上,发送到mysql或者redis |
| | | log.error("请求的userId:"+myUserId+"不在该服务器上"); |
| | | } |
| | | }catch (Exception e){ |
| | | e.printStackTrace(); |
| | | } |
| | | } |
| | | } |
| | | |
| | | /** |
| | | * @param session |
| | | * @param error |
| | | */ |
| | | @OnError |
| | | public void onError(Session session, Throwable error) { |
| | | |
| | | log.error("用户错误:"+this.userId+",原因:"+error.getMessage()); |
| | | error.printStackTrace(); |
| | | } |
| | | |
| | | /** |
| | | * 实现服务 |
| | | * 器主动推送 |
| | | */ |
| | | public void sendMessage(String message) { |
| | | try { |
| | | this.session.getBasicRemote().sendText(message); |
| | | } catch (IOException e) { |
| | | e.printStackTrace(); |
| | | } |
| | | } |
| | | |
| | | /** |
| | | *发送自定 |
| | | *义消息 |
| | | **/ |
| | | public static void sendInfo(String message, String userId) { |
| | | log.info("发送消息到:"+userId+",报文:"+message); |
| | | if(StringUtils.isNotBlank(userId) && webSocketMap.containsKey(userId)){ |
| | | webSocketMap.get(userId).sendMessage(message); |
| | | }else{ |
| | | log.error("用户"+userId+",不在线!"); |
| | | } |
| | | } |
| | | |
| | | /** |
| | | * 获得此时的 |
| | | * 在线人数 |
| | | * @return |
| | | */ |
| | | public static synchronized int getOnlineCount() { |
| | | return onlineCount; |
| | | } |
| | | |
| | | /** |
| | | * 在线人 |
| | | * 数加1 |
| | | */ |
| | | public static synchronized void addOnlineCount() { |
| | | WebSocketServerSolo.onlineCount++; |
| | | } |
| | | |
| | | /** |
| | | * 在线人 |
| | | * 数减1 |
| | | */ |
| | | public static synchronized void subOnlineCount() { |
| | | WebSocketServerSolo.onlineCount--; |
| | | } |
| | | |
| | | } |
| | | |