perf: 优化代码

ball-bungee/src/main/java/cn/hamster3/mc/plugin/ball/bungee/HamsterBallPlugin.java

@@ -16,9 +16,9 @@ import net.md_5.bungee.api.plugin.Plugin;
 import java.io.File;
 import java.nio.file.Files;
 import java.nio.file.StandardCopyOption;
+import java.util.logging.Level;
 import java.util.logging.Logger;
 
-@SuppressWarnings("CallToPrintStackTrace")
 public class HamsterBallPlugin extends Plugin {
     @Getter
     private static HamsterBallPlugin instance;
@@ -45,8 +45,9 @@ public class HamsterBallPlugin extends Plugin {
             BallBungeeCordAPI.init(configFile);
             logger.info("已初始化 BallAPI");
         } catch (Exception e) {
-            e.printStackTrace();
-            ProxyServer.getInstance().stop("由于 HamsterBall 未能成功连接, 服务器将立即关闭");
+            logger.log(Level.SEVERE, "BallAPI 初始化失败", e);
+            ProxyServer.getInstance().stop("由于 HamsterBall 初始化失败, 服务器将立即关闭");
+            return;
         }
         long time = System.currentTimeMillis() - start;
         logger.info("仓鼠球初始化完成，总计耗时 " + time + " ms");
@@ -60,9 +61,8 @@ public class HamsterBallPlugin extends Plugin {
         try {
             BallBungeeCordAPI.getInstance().enable();
         } catch (Exception e) {
-            getLogger().info("仓鼠球启动失败，原因：" + e.getMessage());
-            e.printStackTrace();
-            getLogger().info("由于仓鼠球启动失败，服务器将立即关闭");
+            logger.log(Level.SEVERE, "仓鼠球启动失败", e);
+            logger.info("由于仓鼠球启动失败，服务器将立即关闭");
             ProxyServer.getInstance().stop("仓鼠球启动失败");
             return;
         }
@@ -103,7 +103,7 @@ public class HamsterBallPlugin extends Plugin {
         try {
             BallBungeeCordAPI.getInstance().disable();
         } catch (Exception e) {
-            e.printStackTrace();
+            logger.log(Level.SEVERE, "关闭仓鼠球时遇到了一个异常", e);
         }
         long time = System.currentTimeMillis() - start;
         logger.info("仓鼠球已关闭，总计耗时 " + time + " ms");

ball-bungee/src/main/java/cn/hamster3/mc/plugin/ball/bungee/listener/BallBungeeListener.java

@@ -55,6 +55,9 @@ public class BallBungeeListener {
     @Subscribe
     public void onKickPlayerEvent(KickPlayerEvent event) {
         ProxiedPlayer player = ProxyServer.getInstance().getPlayer(event.getUuid());
+        if (player == null) {
+            return;
+        }
         BaseComponent[] components = BungeeComponentSerializer.get().serialize(event.getReason());
         player.disconnect(components);
     }
@@ -70,8 +73,8 @@ public class BallBungeeListener {
     @Subscribe
     public void onSendPlayerToLocationEvent(SendPlayerToLocationEvent event) {
         String serverID = event.getLocation().getServerID();
-        ServerInfo serverInfo = ProxyServer.getInstance().getServerInfo(serverID);
-        if (serverInfo == null) {
+        ServerInfo toServer = ProxyServer.getInstance().getServerInfo(serverID);
+        if (toServer == null) {
             HamsterBallPlugin.getInstance().getLogger().warning("试图传送玩家时失败: 服务器 " + serverID + " 不在线");
             return;
         }
@@ -83,12 +86,12 @@ public class BallBungeeListener {
             if (player.getServer().getInfo().getName().equals(serverID)) {
                 continue;
             }
-            player.connect(serverInfo);
+            player.connect(toServer);
         }
     }
 
     @Subscribe
-    public void onSendPlayerToPlayerEvent(SendPlayerToPlayerEvent event) {
+    public void onSendPlayerToPlayer(SendPlayerToPlayerEvent event) {
         UUID toPlayerUUID = event.getToPlayerUUID();
         ProxiedPlayer toPlayer = ProxyServer.getInstance().getPlayer(toPlayerUUID);
         if (toPlayer == null) {
@@ -98,6 +101,9 @@ public class BallBungeeListener {
         ServerInfo toServer = toPlayer.getServer().getInfo();
         for (UUID uuid : event.getSendPlayerUUID()) {
             ProxiedPlayer sendPlayer = ProxyServer.getInstance().getPlayer(uuid);
+            if (sendPlayer == null) {
+                continue;
+            }
             if (sendPlayer.getServer().getInfo().getName().equals(toServer.getName())) {
                 continue;
             }

ball-bungee/src/main/java/cn/hamster3/mc/plugin/ball/bungee/util/BallBungeeCordUtils.java

@@ -12,8 +12,8 @@ import org.jetbrains.annotations.NotNull;
 import java.sql.Connection;
 import java.sql.PreparedStatement;
 import java.sql.SQLException;
+import java.util.logging.Level;
 
-@SuppressWarnings("CallToPrintStackTrace")
 public final class BallBungeeCordUtils {
     private BallBungeeCordUtils() {
     }
@@ -44,7 +44,7 @@ public final class BallBungeeCordUtils {
                     statement.executeUpdate();
                 }
             } catch (SQLException e) {
-                e.printStackTrace();
+                BallAPI.getInstance().getLogger().log(Level.SEVERE, "更新玩家数据时遇到了一个异常", e);
             }
             if (!BallAPI.getInstance().getBallConfig().isGameServerUpdatePlayerInfo()) {
                 BallAPI.getInstance().sendRawBallMessage(