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websocket优化代码

pull/4077/head
zhangdaiscott 2022-09-22 15:50:56 +08:00
parent f1d62a418f
commit 8dc91c33e5
2 changed files with 96 additions and 83 deletions
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11
jeecg-module-system/jeecg-system-biz/src/main/java/org/jeecg/modules/message/websocket/SocketHandler.java
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@ -9,11 +9,12 @@ import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
/**
* 监听消息(采用redis发布订阅方式发送消息)
* 监听消息(通过redis发布订阅，推送消息)
* 此方案：解决集群部署的问题，多实例节点（也就是发送消息端先发送消息到redis中，每个服务节点收到redis消息，再触发具体的ws推送）
* @author: jeecg-boot
*/
@Slf4j
@Component
@Component(WebSocket.REDIS_TOPIC_NAME)
public class SocketHandler implements JeecgRedisListener {
@Autowired
@ -21,15 +22,17 @@ public class SocketHandler implements JeecgRedisListener {
@Override
public void onMessage(BaseMap map) {
log.info("【SocketHandler消息】Redis Listerer:" + map.toString());
log.info("【Redis发布订阅模式】redis Listener: {}，参数：{}",WebSocket.REDIS_TOPIC_NAME, map.toString());
String userId = map.get("userId");
String message = map.get("message");
if (ObjectUtil.isNotEmpty(userId)) {
//pc端消息推送具体人
webSocket.pushMessage(userId, message);
//app端消息推送
//app端消息推送具体人
webSocket.pushMessage(userId+CommonSendStatus.APP_SESSION_SUFFIX, message);
} else {
//推送全部
webSocket.pushMessage(message);
}

116
jeecg-module-system/jeecg-system-biz/src/main/java/org/jeecg/modules/message/websocket/WebSocket.java
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@ -1,25 +1,17 @@
package org.jeecg.modules.message.websocket;
import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.CopyOnWriteArraySet;
import javax.annotation.Resource;
import javax.websocket.OnClose;
import javax.websocket.OnMessage;
import javax.websocket.OnOpen;
import javax.websocket.Session;
import javax.websocket.*;
import javax.websocket.server.PathParam;
import javax.websocket.server.ServerEndpoint;
import com.alibaba.fastjson.JSONObject;
import org.jeecg.common.base.BaseMap;
import org.jeecg.common.constant.WebsocketConst;
import org.jeecg.common.modules.redis.client.JeecgRedisClient;
import org.springframework.stereotype.Component;
import com.alibaba.fastjson.JSONObject;
import lombok.extern.slf4j.Slf4j;
/**
@ -32,108 +24,125 @@ import lombok.extern.slf4j.Slf4j;
@ServerEndpoint("/websocket/{userId}")
public class WebSocket {
private Session session;
/**线程安全Map*/
private static ConcurrentHashMap<String, Session> sessionPool = new ConcurrentHashMap<>();
/**
* 用户ID
* Redis触发监听名字
*/
private String userId;
private static final String REDIS_TOPIC_NAME = "socketHandler";
public static final String REDIS_TOPIC_NAME = "socketHandler";
@Resource
private JeecgRedisClient jeecgRedisClient;
/**
* 缓存 webSocket连接到单机服务class中（整体方案支持集群）
*/
private static CopyOnWriteArraySet<WebSocket> webSockets = new CopyOnWriteArraySet<>();
/**
* 线程安全Map
*/
private static ConcurrentHashMap<String, Session> sessionPool = new ConcurrentHashMap<>();
//==========【websocket接受、推送消息等方法 —— 具体服务节点推送ws消息】========================================================================================
@OnOpen
public void onOpen(Session session, @PathParam(value = "userId") String userId) {
try {
//TODO 通过header中获取token，进行check
this.session = session;
this.userId = userId;
webSockets.add(this);
sessionPool.put(userId, session);
log.info("【websocket消息】有新的连接，总数为:" + webSockets.size());
log.info("【系统 WebSocket】有新的连接，总数为:" + sessionPool.size());
} catch (Exception e) {
}
}
@OnClose
public void onClose() {
public void onClose(@PathParam("userId") String userId) {
try {
webSockets.remove(this);
sessionPool.remove(this.userId);
log.info("【websocket消息】连接断开，总数为:" + webSockets.size());
sessionPool.remove(userId);
log.info("【系统 WebSocket】连接断开，总数为:" + sessionPool.size());
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* 服务端推送消息
* ws推送消息
*
* @param userId
* @param message
*/
public void pushMessage(String userId, String message) {
Session session = sessionPool.get(userId);
if (session != null && session.isOpen()) {
for (Map.Entry<String, Session> item : sessionPool.entrySet()) {
//userId key值= {用户id + "_"+ 登录token的md5串}
//TODO vue2未改key新规则，暂时不影响逻辑
if (item.getKey().contains(userId)) {
Session session = item.getValue();
try {
//update-begin-author:taoyan date:20211012 for: websocket报错 https://gitee.com/jeecg/jeecg-boot/issues/I4C0MU
synchronized (session){
log.info("【websocket消息】 单点消息:" + message);
log.info("【系统 WebSocket】推送单人消息:" + message);
session.getBasicRemote().sendText(message);
}
//update-end-author:taoyan date:20211012 for: websocket报错 https://gitee.com/jeecg/jeecg-boot/issues/I4C0MU
} catch (Exception e) {
e.printStackTrace();
log.error(e.getMessage(),e);
}
}
}
}
/**
* 服务器端推送消息
* ws遍历群发消息
*/
public void pushMessage(String message) {
try {
webSockets.forEach(ws -> ws.session.getAsyncRemote().sendText(message));
for (Map.Entry<String, Session> item : sessionPool.entrySet()) {
try {
item.getValue().getAsyncRemote().sendText(message);
} catch (Exception e) {
e.printStackTrace();
log.error(e.getMessage(), e);
}
}
log.info("【系统 WebSocket】群发消息:" + message);
} catch (Exception e) {
log.error(e.getMessage(), e);
}
}
/**
* ws接受客户端消息
*/
@OnMessage
public void onMessage(String message) {
//todo 现在有个定时任务刷，应该去掉
log.debug("【websocket消息】收到客户端消息:" + message);
public void onMessage(String message, @PathParam(value = "userId") String userId) {
if(!"ping".equals(message) && !WebsocketConst.CMD_CHECK.equals(message)){
log.info("【系统 WebSocket】收到客户端消息:" + message);
}else{
log.debug("【系统 WebSocket】收到客户端消息:" + message);
}
//------------------------------------------------------------------------------
JSONObject obj = new JSONObject();
//业务类型
obj.put(WebsocketConst.MSG_CMD, WebsocketConst.CMD_CHECK);
//消息内容
obj.put(WebsocketConst.MSG_TXT, "心跳响应");
//update-begin-author:taoyan date:20220308 for: 消息通知长连接启动心跳机制，后端代码小bug #3473
for (WebSocket webSocket : webSockets) {
webSocket.pushMessage(obj.toJSONString());
}
//update-end-author:taoyan date:20220308 for: 消息通知长连接启动心跳机制，后端代码小bug #3473
this.pushMessage(userId, obj.toJSONString());
//------------------------------------------------------------------------------
}
/**
* 配置错误信息处理
*
* @param session
* @param t
*/
@OnError
public void onError(Session session, Throwable t) {
log.warn("【系统 WebSocket】消息出现错误");
//t.printStackTrace();
}
//==========【系统 WebSocket接受、推送消息等方法 —— 具体服务节点推送ws消息】========================================================================================
//==========【采用redis发布订阅模式——推送消息】========================================================================================
/**
* 后台发送消息到redis
*
* @param message
*/
public void sendMessage(String message) {
log.info("【websocket消息】广播消息:" + message);
//log.info("【系统 WebSocket】广播消息:" + message);
BaseMap baseMap = new BaseMap();
baseMap.put("userId", "");
baseMap.put("message", message);
@ -141,7 +150,7 @@ public class WebSocket {
}
/**
* 此为单点消息
* 此为单点消息 redis
*
* @param userId
* @param message
@ -154,7 +163,7 @@ public class WebSocket {
}
/**
* 此为单点消息(多人)
* 此为单点消息(多人) redis
*
* @param userIds
* @param message
@ -164,5 +173,6 @@ public class WebSocket {
sendMessage(userId, message);
}
}
//=======【采用redis发布订阅模式——推送消息】==========================================================================================
}