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@ -1,12 +1,14 @@
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package com.supervision.usermanage;
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package com.supervision.websocket;
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import cn.hutool.core.util.ObjectUtil;
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import cn.hutool.core.util.StrUtil;
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import cn.hutool.json.JSONUtil;
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import com.baomidou.lock.annotation.Lock4j;
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import com.supervision.constant.UserTokenConstant;
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import com.supervision.controller.WebSocketServer;
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import com.supervision.exception.BusinessException;
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import com.supervision.websocket.dto.KickDTO;
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import com.supervision.websocket.dto.NoResourceDTO;
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import com.supervision.websocket.dto.WebSocketLoginDTO;
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import lombok.Data;
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import lombok.RequiredArgsConstructor;
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import lombok.extern.slf4j.Slf4j;
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@ -15,12 +17,9 @@ import org.springframework.beans.factory.annotation.Value;
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import javax.websocket.*;
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import org.springframework.data.redis.core.RedisTemplate;
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import org.springframework.scheduling.annotation.Scheduled;
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import org.springframework.stereotype.Component;
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import java.io.IOException;
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import java.util.Map;
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import java.util.Set;
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@Slf4j
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@Component
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@ -41,17 +40,17 @@ public class UserResourceCheck {
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}
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@Lock4j(name = "achieveDiagnoseResourceAndOpenConnection")
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public void achieveDiagnoseResourceAndOpenConnection(String uid, Session session) {
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public void achieveDiagnoseResourceAndOpenConnection(String uuid, String userId, Session session) {
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// 如果小于数字人最大连接数,则可以连接
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if (!achieveDiagnoseResource()) {
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try {
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session.getBasicRemote().sendText(JSONUtil.toJsonStr(new NoResourceDTO()));
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} catch (Exception e) {
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log.error("发送消息失败", e);
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}
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throw new BusinessException("暂时没有资源,建立连接失败");
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}
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log.info("用户:{}开始登录,缓存到Redis,并尝试把该用户已有客户端踢下线", uid);
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// 链接之前先把之前的用户踢下线(ignoreSessionId防止把当前用户踢下线)
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// 注意,这里如果用户没有进到问诊页面,只是在问诊大厅时,是不会被踢掉的.(因为这时没有建立websocket连接,还没与放到SESSION_POOL里面去)
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redisTemplate.convertAndSend(UserTokenConstant.KICK_CHANNEL, JSONUtil.toJsonStr(new UserWebSocketDTO(uid, session.getId())));
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log.info("尝试踢该用户{}的其他session下线,忽略sessionId:{}", uid, session.getId());
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redisTemplate.opsForHash().put(UserTokenConstant.USER_WEBSOCKET_CACHE, uid, session.getId());
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redisTemplate.opsForHash().put(UserTokenConstant.USER_WEBSOCKET_CACHE, uuid, JSONUtil.toJsonStr(new WebSocketLoginDTO(uuid, userId, session.getId())));
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}
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/**
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@ -59,42 +58,27 @@ public class UserResourceCheck {
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*/
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// 实现一个方法用于踢下线用户,走的是Redis的消息队列
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public void kickUser(String userId, String ignoreSessionId) {
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log.info("尝试踢用户:{}下线", userId);
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Session session = WebSocketServer.SESSION_POOL.get(userId);
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public void kickUser(String uuid) {
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log.info("尝试踢uuid:{}下线", uuid);
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Session session = WebSocketSessionPool.SESSION_POOL.get(uuid);
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// 只有不是忽略剔除的sessionId才可以踢下线
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if (ObjectUtil.isNotEmpty(session) && !StrUtil.equals(ignoreSessionId, session.getId())) {
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if (ObjectUtil.isNotEmpty(session)) {
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try {
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session.getBasicRemote().sendText(JSONUtil.toJsonStr(new Kick()));
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session.getBasicRemote().sendText(JSONUtil.toJsonStr(new KickDTO()));
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session.close(new CloseReason(CloseReason.CloseCodes.NORMAL_CLOSURE, "用户被踢下线"));
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WebSocketServer.SESSION_POOL.remove(userId);
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log.info("踢用户:{},sessionId:{} 下线成功", userId, session.getId());
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WebSocketSessionPool.SESSION_POOL.remove(uuid);
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// 然后从redis中移除掉
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redisTemplate.opsForHash().delete(UserTokenConstant.USER_WEBSOCKET_CACHE, uuid);
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log.info("踢UUID:{},sessionId:{} 下线成功", uuid, session.getId());
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return;
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} catch (IOException e) {
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log.error("用户:{}的websocket连接异常", e.getMessage());
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// 连接异常的用户,移除
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WebSocketServer.SESSION_POOL.remove(userId);
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// 移除redis中该用户的缓存
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redisTemplate.opsForHash().delete(UserTokenConstant.USER_WEBSOCKET_CACHE, userId);
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}
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// TODO 如果用户连接异常,怎么办
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}
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log.info("踢用户:{}下线,未找到用户,踢下线失败", userId);
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}
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@Data
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public static class Kick {
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private final Integer code = UserTokenConstant.KICK_CODE;
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private final String message = "用户被踢下线";
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log.info("踢UUID:{}下线,未找到用户,踢下线失败", uuid);
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}
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@Data
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public static class Keepalive {
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private final Integer code = UserTokenConstant.KEEPALIVE_CODE;
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private final String message = "keepalive";
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}
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}
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liu
1 year ago