ws 引入心跳
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@@ -17,38 +17,29 @@ import java.util.concurrent.ConcurrentHashMap;
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public class NotificationConnection {
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//连接超时
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public static final long MAX_TIME_OUT = 2 * 60 * 1000;
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static Map<String,Session> sessionMap = new ConcurrentHashMap<>();
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public static final long MAX_TIME_OUT = 3 * 60 * 1000;
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private Session session;
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private Long userId;
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// 这里用ConcurrentHashMap 因为他是一个线程安全的Map
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private static ConcurrentHashMap<NotificationConnection, Long> websockets = new ConcurrentHashMap<>();
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//连接建立时执行的操作
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/*@OnOpen
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public void onOpen(Session session){
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sessionMap.put(session.getId(),session);
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log.info("websocket is open, sessionId: {}",session.getId());
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}*/
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private static ConcurrentHashMap<Long, NotificationConnection> websockets = new ConcurrentHashMap<>();
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@OnOpen
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public void onOpen(Session session, @PathParam("id") String id) { // 接收到前端传来的用户ID
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this.session = session;
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// this.session.setMaxIdleTimeout(MAX_TIME_OUT);
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websockets.put(this, Long.parseLong(id)); //将ID作为key,当前的对象作为Value
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this.userId = Long.valueOf(id);
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this.session.setMaxIdleTimeout(MAX_TIME_OUT);
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websockets.put(Long.parseLong(id), this); //将ID作为key,当前的对象作为Value
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log.info("【建立连接】 用户为:{}", this.session);
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log.info("【建立连接】 用户Id为:{}", id);
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log.info("【建立连接】 总数为:{}", websockets.size());
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log.info("【当前连接总数】 为:{}", websockets.size());
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}
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@OnClose
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public void onClose(CloseReason reason) {
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if (websockets.containsKey(this)) {
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websockets.remove(this); // 将当前的对象从集合中删除
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log.info("【连接断开】 用户为:{}, sessionId: {}, 原因为{}", websockets.get(this), this.session.getId(), reason);
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}
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// log.info("【连接断开】 总数为:{}", websockets.size());
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log.info("【连接断开】 用户为:{}, sessionId: {}, 原因为{}", this.userId, this.session.getId(), reason);
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log.info("【当前连接总数】 为:{}", websockets.size());
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websockets.remove(this.userId); // 将当前的对象从集合中删除
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}
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/**
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@@ -57,42 +48,29 @@ public class NotificationConnection {
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*/
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@OnError
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public void onError(Throwable throwable) {
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log.info("【连接异常】 用户为:{} , sessionId: {}", websockets.get(this), this.session.getId(), throwable);
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websockets.remove(this); // 将当前的对象从集合中删除
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log.info("【连接异常】 用户为:{} , sessionId: {}", this.userId, this.session.getId(), throwable);
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websockets.remove(this.userId); // 将当前的对象从集合中删除
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log.info("【当前连接总数】 为:{}", websockets.size());
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}
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//收到了客户端消息执行的操作
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@OnMessage
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public void onMessage(Session session, String text){
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log.info("收到了一条消息:"+text);
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public void onMessage(String text){
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log.info("收到了一条来自 {} 的消息:{}", this.userId, text);
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// return "已收到你的消息";
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if (text.equals("PING")){
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sendMsg("PONG", websockets.get(this));
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session.setMaxIdleTimeout(MAX_TIME_OUT);
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sendMsg("PONG", this.userId);
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}
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}
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/*//连接关闭的时候执行的操作
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@OnClose
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public void onClose(Session session){
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sessionMap.remove(session.getId());
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log.info("websocket is close, sessionId: {}",session.getId());
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}
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public void sendMsg(String message) throws IOException {
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for(String key:sessionMap.keySet()){
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sessionMap.get(key).getBasicRemote().sendText(message);
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}
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}*/
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public void sendMsg(String message, Long userId) {
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if (userId == null) { // 如果等于null则证明是群发
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// 获取当前Map的一个迭代器,遍历Map的方式有很多种,看着来
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// 这个就是遍历这个集合的过程....
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for (Map.Entry<NotificationConnection, Long> entry : websockets.entrySet()) {
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for (Map.Entry<Long, NotificationConnection> entry : websockets.entrySet()) {
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// 获取每一个Entry实例
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// 获取每一个Value,而这个Value就是WebSocket的实例
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NotificationConnection webSocket = entry.getKey();
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NotificationConnection webSocket = entry.getValue();
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// 接下来就是遍历群发
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log.info("广播消息 【给用户】 :{}发送消息【{}】", webSocket, message);
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try {
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@@ -104,12 +82,12 @@ public class NotificationConnection {
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} else { // 如果不是群发,则判断ID,其余步骤一致
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// 获取当前Map的一个迭代器,遍历Map的方式有很多种,看着来
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// 这个就是遍历这个集合的过程....
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for (Map.Entry<NotificationConnection, Long> entry : websockets.entrySet()) {
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for (Map.Entry<Long, NotificationConnection> entry : websockets.entrySet()) {
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// 获取每一个Entry实例
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// 获取每一个Value,而这个Value就是WebSocket的实例
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NotificationConnection webSocket = entry.getKey();
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NotificationConnection webSocket = entry.getValue();
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// 获取每一个Key,这个Key就是用户ID
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Long key = entry.getValue();
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Long key = entry.getKey();
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// 判断用户ID与当前的Key相等
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if (userId.equals(key)) {
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log.info("私发消息 【给用户】 :{}发送消息【{}】", key, message); // 打印
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