1、避免系统重启产生redis大量脏数据

2、修复登录状态报错的bug

core/src/main/java/com/wecloud/im/ws/cache/UserCacheService.java

@@ -27,15 +27,6 @@ public interface UserCacheService {
     public void offline(String appKey, String clientId, String longChannelId);
 
     /**
-     * 根据用户id获取存在redis中的数据 例如绑定的服务器ip地址
-     *
-     * @param clientId
-     * @return
-     */
-    public ClientConnectionInfo getById(String appKey, String clientId);
-
-
-    /**
      * 根据ClientId从redis获取client信息
      *
      * @param appKey

core/src/main/java/com/wecloud/im/ws/cache/UserCacheServiceImpl.java

@@ -76,8 +76,15 @@ public class UserCacheServiceImpl implements UserCacheService {
     @Override
     public void online(String appKey, String clientId, String longChannelId) {
         log.info("ws用户上线保存redis连接ip:" + InitIp.lAN_IP, ",uid:" + longChannelId);
-        redisUtils.addForSet(CLIENTS + appKey + clientId, longChannelId);
 
+        // 先进行历史数据清理
+        Set<String> members = redisUtils.getForSetMembers(CLIENTS + appKey + clientId);
+        if(members != null) {
+            members.forEach(channelId-> redisUtils.delKey(CLIENT_INFO + channelId));
+        }
+        redisUtils.delKey(CLIENTS + appKey + clientId);
+
+        redisUtils.addForSet(CLIENTS + appKey + clientId, longChannelId);
         redisUtils.hashset(CLIENT_INFO + longChannelId, LAN_IP, InitIp.lAN_IP);
         redisUtils.hashset(CLIENT_INFO + longChannelId, ONLINE_STATUS, ONLINE.toString());
 
@@ -99,26 +106,6 @@ public class UserCacheServiceImpl implements UserCacheService {
         redisUtils.delKey(CLIENT_INFO + longChannelId);
     }
 
-    /**
-     * 根据用户id获取存在redis中的数据 例如绑定的服务器ip地址
-     *
-     * @param clientId
-     * @return
-     */
-    @Override
-    public ClientConnectionInfo getById(String appKey, String clientId) {
-
-        Map<String, String> hgetll = redisUtils.hashgetll(CLIENT_INFO + appKey + clientId);
-        if (hgetll.isEmpty()) {
-            return null;
-        }
-        ClientConnectionInfo appHashValueModel = new ClientConnectionInfo();
-        appHashValueModel.setLanIp(hgetll.get(LAN_IP));
-//        appHashValueModel.(Integer.parseInt(hgetll.get(ONLINE_STATUS_KEY)));
-        return appHashValueModel;
-
-    }
-
     @Override
     public List<ClientChannelInfo> getIpByClientIdAndOnline(String appKey, String clientId) {
 
@@ -129,7 +116,7 @@ public class UserCacheServiceImpl implements UserCacheService {
         // 根据 longChannelId 查询信息
         for (String longChannelId : longChannelIds) {
 
-            String onlineStatus = redisUtils.hashget(CLIENT_INFO + appKey + clientId, ONLINE_STATUS);
+            String onlineStatus = redisUtils.hashget(CLIENT_INFO + longChannelId, ONLINE_STATUS);
             String lanIp = redisUtils.hashget(CLIENT_INFO + longChannelId, LAN_IP);
 
             ClientChannelInfo clientChannelInfo = new ClientChannelInfo();