diff --git a/hamster-ball-bukkit/src/main/java/cn/hamster3/mc/plugin/ball/bukkit/listener/BallBukkitListener.java b/hamster-ball-bukkit/src/main/java/cn/hamster3/mc/plugin/ball/bukkit/listener/BallBukkitListener.java
index 67b24a5..ec528cf 100644
--- a/hamster-ball-bukkit/src/main/java/cn/hamster3/mc/plugin/ball/bukkit/listener/BallBukkitListener.java
+++ b/hamster-ball-bukkit/src/main/java/cn/hamster3/mc/plugin/ball/bukkit/listener/BallBukkitListener.java
@@ -13,6 +13,7 @@ import org.bukkit.Bukkit;
 import org.bukkit.Location;
 import org.bukkit.entity.Player;
 import org.bukkit.event.EventHandler;
+import org.bukkit.event.EventPriority;
 import org.bukkit.event.Listener;
 import org.bukkit.event.player.AsyncPlayerChatEvent;
 import org.bukkit.event.player.PlayerLoginEvent;
@@ -84,7 +85,7 @@ public class BallBukkitListener extends BallListener implements Listener {
         Bukkit.shutdown();
     }
 
-    @EventHandler(ignoreCancelled = true)
+    @EventHandler(ignoreCancelled = true, priority = EventPriority.HIGH)
     public void onPlayerLogin(PlayerLoginEvent event) {
         Player player = event.getPlayer();
         Location location = playerToLocation.remove(player.getUniqueId());
@@ -93,7 +94,7 @@ public class BallBukkitListener extends BallListener implements Listener {
         }
     }
 
-    @EventHandler(ignoreCancelled = true)
+    @EventHandler(ignoreCancelled = true, priority = EventPriority.HIGH)
     public void onAsyncPlayerChat(AsyncPlayerChatEvent event) {
 
     }
diff --git a/hamster-ball-common/src/main/java/cn/hamster3/mc/plugin/ball/common/api/BallAPI.java b/hamster-ball-common/src/main/java/cn/hamster3/mc/plugin/ball/common/api/BallAPI.java
index c788485..fa2e655 100644
--- a/hamster-ball-common/src/main/java/cn/hamster3/mc/plugin/ball/common/api/BallAPI.java
+++ b/hamster-ball-common/src/main/java/cn/hamster3/mc/plugin/ball/common/api/BallAPI.java
@@ -13,6 +13,7 @@ import cn.hamster3.mc.plugin.ball.common.event.player.*;
 import cn.hamster3.mc.plugin.ball.common.event.server.ServerOfflineEvent;
 import cn.hamster3.mc.plugin.ball.common.event.server.ServerOnlineEvent;
 import cn.hamster3.mc.plugin.ball.common.listener.BallListener;
+import cn.hamster3.mc.plugin.ball.common.listener.ListenerPriority;
 import cn.hamster3.mc.plugin.core.common.api.CoreAPI;
 import cn.hamster3.mc.plugin.core.common.constant.CoreConstantObjects;
 import cn.hamster3.mc.plugin.core.common.data.Message;
@@ -75,8 +76,8 @@ public abstract class BallAPI {
 
         addListener(new BallListener() {
             @Override
-            public int getPriority() {
-                return 0;
+            public ListenerPriority getPriority() {
+                return ListenerPriority.LOW;
             }
 
             @Override
@@ -431,9 +432,9 @@ public abstract class BallAPI {
     /**
      * 给玩家发送一条消息
      *
-     * @param receiver    玩家
-     * @param message 消息
-     * @param cache   当玩家不在线时，是否缓存消息等待玩家上线再发送
+     * @param receiver 玩家
+     * @param message  消息
+     * @param cache    当玩家不在线时，是否缓存消息等待玩家上线再发送
      */
     public void sendMessageToPlayer(@NotNull Set<UUID> receiver, @NotNull Message message, boolean cache) {
         for (UUID uuid : receiver) {
@@ -662,7 +663,7 @@ public abstract class BallAPI {
 
     public void addListener(@NotNull BallListener listener) {
         listeners.add(listener);
-        listeners.sort(Comparator.comparingInt(BallListener::getPriority));
+        listeners.sort(Comparator.comparing(BallListener::getPriority));
     }
 
     public void removeListener(@NotNull BallListener listener) {
diff --git a/hamster-ball-common/src/main/java/cn/hamster3/mc/plugin/ball/common/connector/BallChannelInboundHandler.java b/hamster-ball-common/src/main/java/cn/hamster3/mc/plugin/ball/common/connector/BallChannelInboundHandler.java
index e431f7d..7682026 100644
--- a/hamster-ball-common/src/main/java/cn/hamster3/mc/plugin/ball/common/connector/BallChannelInboundHandler.java
+++ b/hamster-ball-common/src/main/java/cn/hamster3/mc/plugin/ball/common/connector/BallChannelInboundHandler.java
@@ -109,33 +109,11 @@ public class BallChannelInboundHandler extends SimpleChannelInboundHandler<Strin
                 }
                 break;
             }
-            case BallPlayerChatEvent.ACTION: {
-                BallPlayerChatEvent event = CoreConstantObjects.GSON.fromJson(info.getContent(), BallPlayerChatEvent.class);
+            case BallPlayerPreLoginEvent.ACTION: {
+                BallPlayerPreLoginEvent event = CoreConstantObjects.GSON.fromJson(info.getContent(), BallPlayerPreLoginEvent.class);
                 for (BallListener listener : BallAPI.getInstance().getListeners()) {
                     try {
-                        listener.onPlayerChat(event);
-                    } catch (Exception | Error e) {
-                        e.printStackTrace();
-                    }
-                }
-                break;
-            }
-            case BallPlayerConnectServerEvent.ACTION: {
-                BallPlayerConnectServerEvent event = CoreConstantObjects.GSON.fromJson(info.getContent(), BallPlayerConnectServerEvent.class);
-                for (BallListener listener : BallAPI.getInstance().getListeners()) {
-                    try {
-                        listener.onBallPlayerConnectServer(event);
-                    } catch (Exception | Error e) {
-                        e.printStackTrace();
-                    }
-                }
-                break;
-            }
-            case BallPlayerLogoutEvent.ACTION: {
-                BallPlayerLogoutEvent event = CoreConstantObjects.GSON.fromJson(info.getContent(), BallPlayerLogoutEvent.class);
-                for (BallListener listener : BallAPI.getInstance().getListeners()) {
-                    try {
-                        listener.onBallPlayerLogout(event);
+                        listener.onBallPlayerPreLogin(event);
                     } catch (Exception | Error e) {
                         e.printStackTrace();
                     }
@@ -153,17 +131,6 @@ public class BallChannelInboundHandler extends SimpleChannelInboundHandler<Strin
                 }
                 break;
             }
-            case BallPlayerPostConnectServerEvent.ACTION: {
-                BallPlayerPostConnectServerEvent event = CoreConstantObjects.GSON.fromJson(info.getContent(), BallPlayerPostConnectServerEvent.class);
-                for (BallListener listener : BallAPI.getInstance().getListeners()) {
-                    try {
-                        listener.onBallPlayerPostConnectServer(event);
-                    } catch (Exception | Error e) {
-                        e.printStackTrace();
-                    }
-                }
-                break;
-            }
             case BallPlayerPostLoginEvent.ACTION: {
                 BallPlayerPostLoginEvent event = CoreConstantObjects.GSON.fromJson(info.getContent(), BallPlayerPostLoginEvent.class);
                 for (BallListener listener : BallAPI.getInstance().getListeners()) {
@@ -186,11 +153,44 @@ public class BallChannelInboundHandler extends SimpleChannelInboundHandler<Strin
                 }
                 break;
             }
-            case BallPlayerPreLoginEvent.ACTION: {
-                BallPlayerPreLoginEvent event = CoreConstantObjects.GSON.fromJson(info.getContent(), BallPlayerPreLoginEvent.class);
+            case BallPlayerConnectServerEvent.ACTION: {
+                BallPlayerConnectServerEvent event = CoreConstantObjects.GSON.fromJson(info.getContent(), BallPlayerConnectServerEvent.class);
                 for (BallListener listener : BallAPI.getInstance().getListeners()) {
                     try {
-                        listener.onBallPlayerPreLogin(event);
+                        listener.onBallPlayerConnectServer(event);
+                    } catch (Exception | Error e) {
+                        e.printStackTrace();
+                    }
+                }
+                break;
+            }
+            case BallPlayerPostConnectServerEvent.ACTION: {
+                BallPlayerPostConnectServerEvent event = CoreConstantObjects.GSON.fromJson(info.getContent(), BallPlayerPostConnectServerEvent.class);
+                for (BallListener listener : BallAPI.getInstance().getListeners()) {
+                    try {
+                        listener.onBallPlayerPostConnectServer(event);
+                    } catch (Exception | Error e) {
+                        e.printStackTrace();
+                    }
+                }
+                break;
+            }
+            case BallPlayerLogoutEvent.ACTION: {
+                BallPlayerLogoutEvent event = CoreConstantObjects.GSON.fromJson(info.getContent(), BallPlayerLogoutEvent.class);
+                for (BallListener listener : BallAPI.getInstance().getListeners()) {
+                    try {
+                        listener.onBallPlayerLogout(event);
+                    } catch (Exception | Error e) {
+                        e.printStackTrace();
+                    }
+                }
+                break;
+            }
+            case BallPlayerChatEvent.ACTION: {
+                BallPlayerChatEvent event = CoreConstantObjects.GSON.fromJson(info.getContent(), BallPlayerChatEvent.class);
+                for (BallListener listener : BallAPI.getInstance().getListeners()) {
+                    try {
+                        listener.onBallPlayerChat(event);
                     } catch (Exception | Error e) {
                         e.printStackTrace();
                     }
diff --git a/hamster-ball-common/src/main/java/cn/hamster3/mc/plugin/ball/common/event/operate/SendPlayerToLocationEvent.java b/hamster-ball-common/src/main/java/cn/hamster3/mc/plugin/ball/common/event/operate/SendPlayerToLocationEvent.java
index 23f9887..0cd2518 100644
--- a/hamster-ball-common/src/main/java/cn/hamster3/mc/plugin/ball/common/event/operate/SendPlayerToLocationEvent.java
+++ b/hamster-ball-common/src/main/java/cn/hamster3/mc/plugin/ball/common/event/operate/SendPlayerToLocationEvent.java
@@ -7,7 +7,6 @@ import lombok.Data;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 
-import java.util.HashSet;
 import java.util.Set;
 import java.util.UUID;
 
diff --git a/hamster-ball-common/src/main/java/cn/hamster3/mc/plugin/ball/common/event/operate/SendPlayerToPlayerEvent.java b/hamster-ball-common/src/main/java/cn/hamster3/mc/plugin/ball/common/event/operate/SendPlayerToPlayerEvent.java
index 48c11b8..6757286 100644
--- a/hamster-ball-common/src/main/java/cn/hamster3/mc/plugin/ball/common/event/operate/SendPlayerToPlayerEvent.java
+++ b/hamster-ball-common/src/main/java/cn/hamster3/mc/plugin/ball/common/event/operate/SendPlayerToPlayerEvent.java
@@ -6,7 +6,6 @@ import lombok.Data;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 
-import java.util.HashSet;
 import java.util.Set;
 import java.util.UUID;
 
diff --git a/hamster-ball-common/src/main/java/cn/hamster3/mc/plugin/ball/common/event/player/BallPlayerPreConnectServerEvent.java b/hamster-ball-common/src/main/java/cn/hamster3/mc/plugin/ball/common/event/player/BallPlayerPreConnectServerEvent.java
index 7ce69f2..d0a0b8e 100644
--- a/hamster-ball-common/src/main/java/cn/hamster3/mc/plugin/ball/common/event/player/BallPlayerPreConnectServerEvent.java
+++ b/hamster-ball-common/src/main/java/cn/hamster3/mc/plugin/ball/common/event/player/BallPlayerPreConnectServerEvent.java
@@ -8,6 +8,8 @@ import org.jetbrains.annotations.Nullable;
 
 /**
  * 玩家准备进入子服
+ * <p>
+ * 仅在使用 velocity 代理端时才会触发这个事件
  */
 @Data
 @AllArgsConstructor
diff --git a/hamster-ball-common/src/main/java/cn/hamster3/mc/plugin/ball/common/event/player/BallPlayerPreLoginEvent.java b/hamster-ball-common/src/main/java/cn/hamster3/mc/plugin/ball/common/event/player/BallPlayerPreLoginEvent.java
index 6a1755f..23ce371 100644
--- a/hamster-ball-common/src/main/java/cn/hamster3/mc/plugin/ball/common/event/player/BallPlayerPreLoginEvent.java
+++ b/hamster-ball-common/src/main/java/cn/hamster3/mc/plugin/ball/common/event/player/BallPlayerPreLoginEvent.java
@@ -5,7 +5,7 @@ import lombok.Data;
 import org.jetbrains.annotations.NotNull;
 
 /**
- * 玩家准备连接到服务器
+ * 玩家准备连接到代理服务器
  */
 @Data
 @AllArgsConstructor
diff --git a/hamster-ball-common/src/main/java/cn/hamster3/mc/plugin/ball/common/listener/BallListener.java b/hamster-ball-common/src/main/java/cn/hamster3/mc/plugin/ball/common/listener/BallListener.java
index 8ba0763..6c89e96 100644
--- a/hamster-ball-common/src/main/java/cn/hamster3/mc/plugin/ball/common/listener/BallListener.java
+++ b/hamster-ball-common/src/main/java/cn/hamster3/mc/plugin/ball/common/listener/BallListener.java
@@ -10,13 +10,11 @@ import org.jetbrains.annotations.NotNull;
 public abstract class BallListener {
     /**
      * 该监听器的执行优先级
-     * <p>
-     * 数字越低越先执行
      *
      * @return 优先级
      */
-    public int getPriority() {
-        return 100;
+    public ListenerPriority getPriority() {
+        return ListenerPriority.NORMAL;
     }
 
     public void onBroadcastPlayerMessage(@NotNull BroadcastPlayerMessageEvent event) {
@@ -61,7 +59,7 @@ public abstract class BallListener {
     public void onBallPlayerLogout(@NotNull BallPlayerLogoutEvent event) {
     }
 
-    public void onPlayerChat(@NotNull BallPlayerChatEvent event) {
+    public void onBallPlayerChat(@NotNull BallPlayerChatEvent event) {
     }
 
     public void onServerOffline(@NotNull ServerOfflineEvent event) {
@@ -70,10 +68,10 @@ public abstract class BallListener {
     public void onServerOnline(@NotNull ServerOnlineEvent event) {
     }
 
-    public void onMessageReceived(@NotNull MessageInfo event) {
+    public void onMessageSend(@NotNull MessageInfo event) {
     }
 
-    public void onMessageSend(@NotNull MessageInfo event) {
+    public void onMessageReceived(@NotNull MessageInfo event) {
     }
 
     public void onConnectInactive() {
diff --git a/hamster-ball-common/src/main/java/cn/hamster3/mc/plugin/ball/common/listener/ListenerPriority.java b/hamster-ball-common/src/main/java/cn/hamster3/mc/plugin/ball/common/listener/ListenerPriority.java
new file mode 100644
index 0000000..dc6f958
--- /dev/null
+++ b/hamster-ball-common/src/main/java/cn/hamster3/mc/plugin/ball/common/listener/ListenerPriority.java
@@ -0,0 +1,45 @@
+package cn.hamster3.mc.plugin.ball.common.listener;
+
+@SuppressWarnings("unused")
+public enum ListenerPriority {
+
+    /**
+     * Event call is of very low importance and should be ran first, to allow
+     * other plugins to further customise the outcome
+     */
+    LOWEST(0),
+    /**
+     * Event call is of low importance
+     */
+    LOW(1),
+    /**
+     * Event call is neither important nor unimportant, and may be ran
+     * normally
+     */
+    NORMAL(2),
+    /**
+     * Event call is of high importance
+     */
+    HIGH(3),
+    /**
+     * Event call is critical and must have the final say in what happens
+     * to the event
+     */
+    HIGHEST(4),
+    /**
+     * Event is listened to purely for monitoring the outcome of an event.
+     * <p>
+     * No modifications to the event should be made under this priority
+     */
+    MONITOR(5);
+
+    private final int slot;
+
+    ListenerPriority(int slot) {
+        this.slot = slot;
+    }
+
+    public int getSlot() {
+        return slot;
+    }
+}