dashboard: Fix the bug that removing token servers may fail when there are servers with the same IP (#2591)

Author: icodening

sentinel-dashboard/src/main/java/com/alibaba/csp/sentinel/dashboard/util/ClusterEntityUtils.java

@@ -130,7 +130,8 @@ public static List<ClusterGroupEntity> wrapToClusterGroup(List<ClusterUniversalS
             if (mode == ClusterStateManager.CLUSTER_SERVER) {
                 String serverAddress = getIp(ip);
                 int port = stateVO.getState().getServer().getPort();
-                map.computeIfAbsent(serverAddress, v -> new ClusterGroupEntity()
+                String targetAddress = serverAddress + ":" + port;
+                map.computeIfAbsent(targetAddress, v -> new ClusterGroupEntity()
                     .setBelongToApp(true).setMachineId(ip + '@' + stateVO.getCommandPort())
                     .setIp(ip).setPort(port)
                 );
@@ -145,8 +146,8 @@ public static List<ClusterGroupEntity> wrapToClusterGroup(List<ClusterUniversalS
                 if (StringUtil.isBlank(targetServer) || targetPort == null || targetPort <= 0) {
                     continue;
                 }
-
-                ClusterGroupEntity group = map.computeIfAbsent(targetServer,
+                String targetAddress = targetServer + ":" + targetPort;
+                ClusterGroupEntity group = map.computeIfAbsent(targetAddress,
                     v -> new ClusterGroupEntity()
                         .setBelongToApp(true).setMachineId(targetServer)
                         .setIp(targetServer).setPort(targetPort)