package org.jeecg.modules.dry.websocket;
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import lombok.extern.slf4j.Slf4j;
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import org.jeecg.common.constant.WebsocketConst;
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import org.springframework.stereotype.Component;
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import javax.websocket.*;
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import javax.websocket.server.PathParam;
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import javax.websocket.server.ServerEndpoint;
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import java.util.Map;
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import java.util.concurrent.ConcurrentHashMap;
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/**
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* @Author scott
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* @Date 2019/11/29 9:41
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* @Description: 此注解相当于设置访问URL
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*/
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@Component
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@Slf4j
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@ServerEndpoint("/drySocket/{tenantId}")
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public class DrySocket {
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/**线程安全Map*/
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private static ConcurrentHashMap<String, Session> sessionPool = new ConcurrentHashMap<>();
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//==========【websocket接受、推送消息等方法 —— 具体服务节点推送ws消息】========================================================================================
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@OnOpen
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public void onOpen(Session session, @PathParam(value = "tenantId") String tenantId) {
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try {
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sessionPool.put(tenantId, session);
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log.info("【系统 WebSocket】有新的连接，总数为:" + sessionPool.size());
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} catch (Exception e) {
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}
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}
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@OnClose
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public void onClose(@PathParam("tenantId") String tenantId) {
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try {
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sessionPool.remove(tenantId);
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log.info("【系统 WebSocket】连接断开，总数为:" + sessionPool.size());
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} catch (Exception e) {
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e.printStackTrace();
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}
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}
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/**
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* ws推送消息
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*
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* @param tenantId
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* @param message
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*/
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public void pushMessage(String tenantId, String message) {
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for (Map.Entry<String, Session> item : sessionPool.entrySet()) {
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//userId key值= {用户id + "_"+ 登录token的md5串}
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//TODO vue2未改key新规则，暂时不影响逻辑
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if (item.getKey().contains(tenantId)) {
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Session session = item.getValue();
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try {
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//update-begin-author:taoyan date:20211012 for: websocket报错 https://gitee.com/jeecg/jeecg-boot/issues/I4C0MU
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synchronized (session){
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log.info("【系统 WebSocket】推送单人消息:" + message);
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session.getBasicRemote().sendText(message);
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}
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//update-end-author:taoyan date:20211012 for: websocket报错 https://gitee.com/jeecg/jeecg-boot/issues/I4C0MU
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} catch (Exception e) {
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log.error(e.getMessage(),e);
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}
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}
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}
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}
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/**
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* ws遍历群发消息
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*/
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public void pushMessage(String message) {
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try {
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for (Map.Entry<String, Session> item : sessionPool.entrySet()) {
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try {
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item.getValue().getAsyncRemote().sendText(message);
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} catch (Exception e) {
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log.error(e.getMessage(), e);
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}
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}
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log.info("【系统 WebSocket】群发消息:" + message);
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} catch (Exception e) {
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log.error(e.getMessage(), e);
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}
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}
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/**
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* ws接受客户端消息
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*/
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@OnMessage
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public void onMessage(String message, @PathParam(value = "tenantId") String tenantId) {
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if(!"ping".equals(message) && !WebsocketConst.CMD_CHECK.equals(message)){
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log.info("【系统 WebSocket】收到客户端消息:" + message);
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}else{
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log.debug("【系统 WebSocket】收到客户端消息:" + message);
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}
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// //------------------------------------------------------------------------------
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// JSONObject obj = new JSONObject();
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// //业务类型
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// obj.put(WebsocketConst.MSG_CMD, WebsocketConst.CMD_CHECK);
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// //消息内容
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// obj.put(WebsocketConst.MSG_TXT, "心跳响应");
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// this.pushMessage(userId, obj.toJSONString());
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// //------------------------------------------------------------------------------
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}
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/**
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* 配置错误信息处理
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*
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* @param session
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* @param t
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*/
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@OnError
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public void onError(Session session, Throwable t) {
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log.warn("【系统 WebSocket】消息出现错误");
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t.printStackTrace();
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}
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//==========【系统 WebSocket接受、推送消息等方法 —— 具体服务节点推送ws消息】========================================================================================
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//==========【采用redis发布订阅模式——推送消息】========================================================================================
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/**
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* 此为单点消息(多人) redis
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*
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* @param userIds
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* @param message
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*/
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// public void sendMessage(String[] userIds, String message) {
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// for (String userId : userIds) {
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// sendMessage(userId, message);
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// }
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// }
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//=======【采用redis发布订阅模式——推送消息】==========================================================================================
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}
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