完成基本功能

src/main/java/cn/cnklp/studio/UnionBanClientSpigot/KickPlayerTask.java

@@ -0,0 +1,20 @@
+package cn.cnklp.studio.UnionBanClientSpigot;
+
+import org.bukkit.Bukkit;
+import org.bukkit.scheduler.BukkitRunnable;
+
+import java.util.Objects;
+
+public class KickPlayerTask extends BukkitRunnable {
+    private final String username;
+    private final ClientPlugin plugin;
+
+    public KickPlayerTask(ClientPlugin plugin, String username) {
+        this.username = username;
+        this.plugin = plugin;
+    }
+
+    public void run() {
+        Objects.requireNonNull(Bukkit.getPlayer(username)).kickPlayer("You are in the UnionBan list!");
+    }
+}