feat: remove wsc listener

Signed-off-by: 502647092 <admin@yumc.pw>

pom.xml

@@ -3,7 +3,7 @@
     <modelVersion>4.0.0</modelVersion>
     <groupId>org.maxgamer</groupId>
     <artifactId>QuickShop</artifactId>
-    <version>2.1.1</version>
+    <version>2.3.1</version>
     <description>快捷商店重置版本...</description>
     <build>
         <finalName>${project.name}</finalName>
@@ -50,12 +50,28 @@
     </ciManagement>
     <properties>
         <env.GIT_COMMIT>DEBUG</env.GIT_COMMIT>
-        <update.description>§a全新版本 §c虚拟悬浮物(橙子提供 对 就是那个汉化COI的逗比)§e7老板修复逗比BUG...</update.description>
+        <update.description>§a全新版本 §c修复大量问题§e(有问题找jiongjiong)...</update.description>
         <update.changes>
+            §b2.3.1 - §cfix: 修复低版本服务端不兼容的问题;
+            §b2.3.0 - §afeat: 修复大量BUG(感谢jiongjiong提交的PR 下面都是他修复的);
+            §b      - §cfix: 修复不必要的获取离线玩家导致创建大量getProfile线程导致服务端崩溃的问题;
+            §b      - §cfix: 连接池线程安全修正;
+            §b      - §cfix: 让修改价格等行为异步操作数据库;
+            §b      - §cfix: 异步调用数据库删除方法(BlockBreakEvent触发);
+            §b      - §cfix: 异步保存商店到数据库;
+            §b      - §cfix: 修复收购商店不触发ShopPurchaseEvent的问题,并且调整触发的时机,避免没钱购买也触发这个事件;
+            §b      - §cfix: 修复一些奇怪的问题;
+            §b      - §cfix: 修复一处线程安全问题;
+            §b      - §cfix: 修复匹配两个物品是否相同的问题;
+            §b      - §cfix: 删除不必要的监听器
+        </update.changes>
+        <update.changelog>
+            §b2.2.0 - §cfix: 修复 1.12 不兼容的问题;
+            §b2.1.2 - §e移除过期的监听方法...;
             §b2.1.0 - §c修复大箱子刷物品的问题...;
             §b2.0.1 - §a使用新类库 兼容最新版本...;
             §b1.9.5 - §a1.10+兼容虚拟悬浮物...;
-        </update.changes>
+        </update.changelog>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <maven.compiler.source>1.8</maven.compiler.source>
         <maven.compiler.target>1.8</maven.compiler.target>
@@ -63,14 +79,14 @@
     <repositories>
         <repository>
             <id>yumc-repo</id>
-            <url>http://repo.yumc.pw/content/groups/public/</url>
+            <url>https://repo.yumc.pw/repository/maven-public/</url>
         </repository>
     </repositories>
     <distributionManagement>
         <repository>
             <id>jtb</id>
             <name>YUMC</name>
-            <url>http://repo.yumc.pw/content/repositories/yumcenter/</url>
+            <url>https://repo.yumc.pw/repository/yumcenter/</url>
         </repository>
     </distributionManagement>
     <dependencies>
@@ -78,12 +94,7 @@
             <groupId>pw.yumc</groupId>
             <artifactId>YumCore</artifactId>
             <type>jar</type>
-            <version>1.7</version>
+            <version>[1.8.1,)</version>
-        </dependency>
-        <dependency>
-            <groupId>io.github.Cnly.WowSuchCleaner</groupId>
-            <artifactId>WowSuchCleaner</artifactId>
-            <version>1.6.5</version>
         </dependency>
     </dependencies>
 </project>

src/main/java/org/maxgamer/QuickShop/Database/MySQLCore.java

@@ -5,14 +5,18 @@ import java.sql.DriverManager;
 import java.sql.PreparedStatement;
 import java.sql.SQLException;
 import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
 import java.util.Properties;
 
 public class MySQLCore implements DatabaseCore {
     private String url;
-    /** The connection properties... user, pass, autoReconnect.. */
+    /**
+     * The connection properties... user, pass, autoReconnect..
+     */
     private Properties info;
     private static final int MAX_CONNECTIONS = 8;
-    private static ArrayList<Connection> pool = new ArrayList<>();
+    private static final List<Connection> POOL = Collections.synchronizedList(new ArrayList<Connection>());
 
     public MySQLCore(String host, String user, String pass, String database, String port) {
         info = new Properties();
@@ -22,8 +26,7 @@ public class MySQLCore implements DatabaseCore {
         info.put("useUnicode", "true");
         info.put("characterEncoding", "utf8");
         this.url = "jdbc:mysql://" + host + ":" + port + "/" + database;
-        for (int i = 0; i < MAX_CONNECTIONS; i++)
+        for (int i = 0; i < MAX_CONNECTIONS; i++) {POOL.add(null);}
-            pool.add(null);
     }
 
     /**
@@ -31,9 +34,10 @@ public class MySQLCore implements DatabaseCore {
      *
      * @return The database connection
      */
+    @Override
     public Connection getConnection() {
         for (int i = 0; i < MAX_CONNECTIONS; i++) {
-            Connection connection = pool.get(i);
+            Connection connection = POOL.get(i);
             try {
                 // If we have a current connection, fetch it
                 if (connection != null && !connection.isClosed()) {
@@ -43,7 +47,7 @@ public class MySQLCore implements DatabaseCore {
                     // Else, it is invalid, so we return another connection.
                 }
                 connection = DriverManager.getConnection(this.url, info);
-                pool.set(i, connection);
+                POOL.set(i, connection);
                 return connection;
             } catch (SQLException e) {
                 e.printStackTrace();

src/main/java/org/maxgamer/QuickShop/Listeners/ChatListener.java

@@ -1,5 +1,6 @@
 package org.maxgamer.QuickShop.Listeners;
 
+import org.bukkit.Bukkit;
 import org.bukkit.event.EventHandler;
 import org.bukkit.event.EventPriority;
 import org.bukkit.event.Listener;
@@ -7,12 +8,10 @@ import org.bukkit.event.player.AsyncPlayerChatEvent;
 import org.maxgamer.QuickShop.QuickShop;
 
 /**
- *
  * @author Netherfoam
- *
  */
 public class ChatListener implements Listener {
-    QuickShop plugin;
+    private QuickShop plugin;
 
     public ChatListener(final QuickShop plugin) {
         this.plugin = plugin;
@@ -23,7 +22,7 @@ public class ChatListener implements Listener {
         if (!plugin.getShopManager().getActions().containsKey(e.getPlayer().getName())) {
             return;
         }
-        plugin.getShopManager().handleChat(e.getPlayer(), e.getMessage());
         e.setCancelled(true);
+        Bukkit.getScheduler().runTask(plugin, () -> plugin.getShopManager().handleChat(e.getPlayer(), e.getMessage()));
     }
 }

src/main/java/org/maxgamer/QuickShop/Listeners/PlayerListener.java

@@ -1,6 +1,6 @@
 package org.maxgamer.QuickShop.Listeners;
 
-import java.util.HashMap;
+import java.util.Map;
 
 import org.bukkit.Bukkit;
 import org.bukkit.GameMode;
@@ -65,7 +65,7 @@ public class PlayerListener implements Listener {
                 p.openInventory(in);
             }
             // Add the new action
-            final HashMap<String, Info> actions = plugin.getShopManager().getActions();
+            final Map<String, Info> actions = plugin.getShopManager().getActions();
             final Info info = new Info(shop.getLocation(), ShopAction.BUY, null, null, shop);
             actions.put(p.getName(), info);
         }

src/main/java/org/maxgamer/QuickShop/Listeners/WowSuchCleanerListener.java

@@ -1,37 +0,0 @@
-package org.maxgamer.QuickShop.Listeners;
-
-import io.github.Cnly.WowSuchCleaner.WowSuchCleaner.ItemPreCleanEvent;
-import org.bukkit.entity.Item;
-import org.bukkit.event.EventHandler;
-import org.bukkit.event.Listener;
-import org.bukkit.inventory.ItemStack;
-import org.maxgamer.QuickShop.Util.MarkUtil;
-
-import java.util.ArrayList;
-import java.util.List;
-
-public class WowSuchCleanerListener implements Listener {
-    @EventHandler
-    public void onWSCClear(final ItemPreCleanEvent e) {
-        final List<Item> clearList = new ArrayList<>();
-        final List<ItemStack> aucList = new ArrayList<>();
-        final List<Item> cleanList = e.getItemsToClean();
-        final List<ItemStack> acList = e.getItemsToAuction();
-        if (cleanList != null) {
-            for (final Item item : cleanList) {
-                if (MarkUtil.hasMark(item.getItemStack())) {
-                    clearList.add(item);
-                }
-            }
-            e.getItemsToClean().removeAll(clearList);
-        }
-        if (acList != null) {
-            for (final ItemStack itemStack : acList) {
-                if (MarkUtil.hasMark(itemStack)) {
-                    aucList.add(itemStack);
-                }
-            }
-            e.getItemsToAuction().removeAll(aucList);
-        }
-    }
-}

src/main/java/org/maxgamer/QuickShop/QuickShop.java

@@ -36,12 +36,10 @@ import org.maxgamer.QuickShop.Economy.EconomyCore;
 import org.maxgamer.QuickShop.Economy.Economy_Vault;
 import org.maxgamer.QuickShop.Listeners.BlockListener;
 import org.maxgamer.QuickShop.Listeners.ChatListener;
-import org.maxgamer.QuickShop.Listeners.ChunkListener;
 import org.maxgamer.QuickShop.Listeners.LockListener;
 import org.maxgamer.QuickShop.Listeners.PlayerListener;
 import org.maxgamer.QuickShop.Listeners.ProtectListener;
 import org.maxgamer.QuickShop.Listeners.WorldListener;
-import org.maxgamer.QuickShop.Listeners.WowSuchCleanerListener;
 import org.maxgamer.QuickShop.Shop.ContainerShop;
 import org.maxgamer.QuickShop.Shop.Shop;
 import org.maxgamer.QuickShop.Shop.ShopManager;
@@ -301,16 +299,6 @@ public class QuickShop extends JavaPlugin {
         MsgUtil.clean();
         // Register events
         final PluginManager pm = this.getServer().getPluginManager();
-        final Plugin wsc = pm.getPlugin("WowSuchCleaner");
-        if (wsc != null && wsc.isEnabled()) {
-            getLogger().info("发现 WowSuchCleaner 插件 开启相关功能...");
-            try {
-                Class.forName("io.github.Cnly.WowSuchCleaner.WowSuchCleaner.ItemPreCleanEvent");
-                pm.registerEvents(new WowSuchCleanerListener(), this);
-            } catch (final ClassNotFoundException e) {
-                getLogger().info("WowSuchCleaner 版本过低 可能造成悬浮物上架...");
-            }
-        }
         pm.registerEvents(new BlockListener(this), this);
         pm.registerEvents(new PlayerListener(this), this);
         pm.registerEvents(new WorldListener(this), this);

src/main/java/org/maxgamer/QuickShop/Shop/ContainerShop.java

@@ -195,7 +195,13 @@ public class ContainerShop implements Shop {
         final int y = this.getLocation().getBlockY();
         final int z = this.getLocation().getBlockZ();
         final String world = this.getLocation().getWorld().getName();
-        plugin.getDB().execute("DELETE FROM shops WHERE x = '" + x + "' AND y = '" + y + "' AND z = '" + z + "' AND world = '" + world + "'");
+        // Async database execute
+		plugin.getServer().getScheduler().runTaskAsynchronously(plugin, new Runnable() {
+			@Override
+			public void run() {
+				plugin.getDB().execute("DELETE FROM shops WHERE x = '" + x + "' AND y = '" + y + "' AND z = '" + z + "' AND world = '" + world + "'");
+			}
+		});
         // Refund if necessary
         if (plugin.getConfig().getBoolean("shop.refund")) {
             plugin.getEcon().deposit(this.getOwner(), plugin.getConfig().getDouble("shop.cost"));
@@ -650,13 +656,22 @@ public class ContainerShop implements Shop {
         final String world = this.getLocation().getWorld().getName();
         final int unlimited = this.isUnlimited() ? 1 : 0;
         final String q = "UPDATE shops SET owner = ?, itemConfig = ?, unlimited = ?, type = ?, price = ? WHERE x = ? AND y = ? and z = ? and world = ?";
-        try {
+        final String owner = this.getOwner();
-            plugin.getDB().execute(q, this.getOwner(), Util.serialize(this.getItem()), unlimited, shopType.toID(), this.getPrice(), x, y, z, world);
+		final String item = Util.serialize(this.getItem());
-        } catch (final Exception e) {
+		double price = this.getPrice();
-            plugin.getLogger().warning("无法保存商店到数据库!!!");
+		// Async database execute
-            plugin.getLogger().warning("错误信息: " + e.getMessage());
+		plugin.getServer().getScheduler().runTaskAsynchronously(plugin, new Runnable() {
-            e.printStackTrace();
+			@Override
-        }
+			public void run() {
+				try {
+					plugin.getDB().execute(q, owner, item, unlimited, shopType.toID(), price, x, y, z, world);
+				} catch (final Exception e) {
+					plugin.getLogger().warning("无法保存商店到数据库!!!");
+					plugin.getLogger().warning("错误信息: " + e.getMessage());
+					e.printStackTrace();
+				}
+			}
+		});
     }
 
     private void checkDisplay() {

src/main/java/org/maxgamer/QuickShop/Shop/Item/FakeItem.java

@@ -5,7 +5,6 @@ import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
-import java.util.UUID;
 
 import org.bukkit.Bukkit;
 import org.bukkit.Chunk;
@@ -75,24 +74,7 @@ public abstract class FakeItem extends DisplayItem {
                 }
             }
         };
-        final PacketAdapter chunkBulkPacketListener = new PacketAdapter(plugin, PacketType.Play.Server.MAP_CHUNK_BULK) {
-            @Override
-            public void onPacketSending(final PacketEvent event) {
-                try {
-                    final PacketContainer packet = event.getPacket();
-                    final Player p = event.getPlayer();
-                    final int[] chunksX = packet.getIntegerArrays().read(0);
-                    final int[] chunksZ = packet.getIntegerArrays().read(1);
-                    for (int i = 0; i < chunksX.length; i++) {
-                        final List<FakeItem> fakesInChunk = fakes.get(getChunkIdentifyString(p.getWorld().getChunkAt(chunksX[i], chunksZ[i])));
-                        sendChunkPacket(p, fakesInChunk);
-                    }
-                } catch (final Exception ignored) {
-                }
-            }
-        };
         ProtocolLibrary.getProtocolManager().addPacketListener(chunkPacketListener);
-        ProtocolLibrary.getProtocolManager().addPacketListener(chunkBulkPacketListener);
         registered = true;
     }
 

src/main/java/org/maxgamer/QuickShop/Shop/ShopManager.java

@@ -1,6 +1,18 @@
 package org.maxgamer.QuickShop.Shop;
 
-import org.bukkit.*;
+import java.util.HashMap;
+import java.util.Iterator;
+import java.util.Map;
+import java.util.NoSuchElementException;
+import java.util.Set;
+import java.util.concurrent.ConcurrentHashMap;
+
+import org.bukkit.Bukkit;
+import org.bukkit.ChatColor;
+import org.bukkit.Chunk;
+import org.bukkit.Location;
+import org.bukkit.Material;
+import org.bukkit.World;
 import org.bukkit.block.Block;
 import org.bukkit.block.BlockFace;
 import org.bukkit.block.BlockState;
@@ -14,14 +26,9 @@ import org.maxgamer.QuickShop.QuickShop;
 import org.maxgamer.QuickShop.Util.MsgUtil;
 import org.maxgamer.QuickShop.Util.Util;
 
-import java.util.HashMap;
-import java.util.Iterator;
-import java.util.NoSuchElementException;
-import java.util.Set;
-
 public class ShopManager {
-    private final HashMap<String, Info> actions = new HashMap<>();
     
+    private final Map<String, Info> actions = new ConcurrentHashMap<String, Info>();
     private final QuickShop plugin;
     private final HashMap<String, HashMap<ShopChunk, HashMap<Location, Shop>>> shops = new HashMap<>();
 
@@ -34,9 +41,9 @@ public class ShopManager {
      * shop.
      *
      * @param p
-     *            The player to check
+     *         The player to check
      * @param b
-     *            The block to check
+     *         The block to check
      * @return True if they're allowed to place a shop there.
      */
     public boolean canBuildShop(final Player p, final Block b, final BlockFace bf) {
@@ -60,7 +67,11 @@ public class ShopManager {
         }
         /* 修复其他插件调用产生的报错... */
         try {
-            final PlayerInteractEvent pie = new PlayerInteractEvent(p, Action.RIGHT_CLICK_BLOCK, new ItemStack(Material.AIR), b, bf); // PIE = PlayerInteractEvent - What else?
+            final PlayerInteractEvent pie = new PlayerInteractEvent(p,
+                                                                    Action.RIGHT_CLICK_BLOCK,
+                                                                    new ItemStack(Material.AIR),
+                                                                    b,
+                                                                    bf); // PIE = PlayerInteractEvent - What else?
             Bukkit.getPluginManager().callEvent(pie);
             pie.getPlayer().closeInventory(); // If the player has chat open, this will close their chat.
             if (pie.isCancelled()) { return false; }
@@ -96,26 +107,37 @@ public class ShopManager {
     public void createShop(final Shop shop) {
         final Location loc = shop.getLocation();
         final ItemStack item = shop.getItem();
-        try {
+        final String serializeItem = Util.serialize(item);
-            // Write it to the database
+        final String worldName = loc.getWorld().getName();
-            final String q = "INSERT INTO shops (owner, price, itemConfig, x, y, z, world, unlimited, type) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?)";
+        final int x = loc.getBlockX();
-            plugin.getDB().execute(q,
+        final int y = loc.getBlockY();
-                    shop.getOwner(),
+        final int z = loc.getBlockZ();
-                    shop.getPrice(),
+        // Async database execute
-                    Util.serialize(item),
+        plugin.getServer().getScheduler().runTaskAsynchronously(plugin, new Runnable() {
-                    loc.getBlockX(),
+            @Override
-                    loc.getBlockY(),
+            public void run() {
-                    loc.getBlockZ(),
+                try {
-                    loc.getWorld().getName(),
+                    // Write it to the database
-                    (shop.isUnlimited() ? 1 : 0),
+                    final String q = "INSERT INTO shops (owner, price, itemConfig, x, y, z, world, unlimited, type) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?)";
-                    shop.getShopType().toID());
+                    plugin.getDB().execute(q,
-            // Add it to the world
+                                           shop.getOwner(),
-            addShop(loc.getWorld().getName(), shop);
+                                           shop.getPrice(),
-        } catch (final Exception e) {
+                                           serializeItem,
-            plugin.getLogger().warning("无法保存商店到数据库! 下次重启商店将会消失!");
+                                           x,
-            plugin.getLogger().warning("错误信息: " + e.getMessage());
+                                           y,
-            e.printStackTrace();
+                                           z,
-        }
+                                           worldName,
+                                           (shop.isUnlimited() ? 1 : 0),
+                                           shop.getShopType().toID());
+                } catch (final Exception e) {
+                    plugin.getLogger().warning("无法保存商店到数据库! 下次重启商店将会消失!");
+                    plugin.getLogger().warning("错误信息: " + e.getMessage());
+                    e.printStackTrace();
+                }
+            }
+        });
+        // Add it to the world
+        addShop(worldName, shop);
     }
 
     public String format(final double d) {
@@ -124,9 +146,9 @@ public class ShopManager {
 
     /**
      * @return Returns the HashMap<Player name, shopInfo>. Info contains what
-     *         their last question etc was.
+     * their last question etc was.
      */
-    public HashMap<String, Info> getActions() {
+    public Map<String, Info> getActions() {
         return this.actions;
     }
 
@@ -138,7 +160,7 @@ public class ShopManager {
      * Gets a shop in a specific location
      *
      * @param loc
-     *            The location to get the shop from
+     *         The location to get the shop from
      * @return The shop at that location
      */
     public Shop getShop(final Location loc) {
@@ -172,8 +194,8 @@ public class ShopManager {
      * Returns a hashmap of Shops
      *
      * @param c
-     *            The chunk to search. Referencing doesn't matter, only
+     *         The chunk to search. Referencing doesn't matter, only
-     *            coordinates and world are used.
+     *         coordinates and world are used.
      * @return
      */
     public HashMap<Location, Shop> getShops(final Chunk c) {
@@ -188,8 +210,8 @@ public class ShopManager {
      * Returns a hashmap of Chunk -> Shop
      *
      * @param world
-     *            The name of the world (case sensitive) to get the list of
+     *         The name of the world (case sensitive) to get the list of
-     *            shops from
+     *         shops from
      * @return a hashmap of Chunk -> Shop
      */
     public HashMap<ShopChunk, HashMap<Location, Shop>> getShops(final String world) {
@@ -205,10 +227,11 @@ public class ShopManager {
 
     public void handleChat(final Player p, final String msgs) {
         final String message = ChatColor.stripColor(msgs);
-        final HashMap<String, Info> actions = getActions();
+        final Map<String, Info> actions = getActions();
         // They wanted to do something.
         final Info info = actions.remove(p.getName());
-        if (info == null) { return; // multithreaded means this can happen
+        if (info == null) {
+            return; // multithreaded means this can happen
         }
         /* Creation handling */
         if (info.getAction() == ShopAction.CREATE) {
@@ -246,9 +269,9 @@ public class ShopManager {
      * from the database. Do not use this method to create a shop.
      *
      * @param world
-     *            The world the shop is in
+     *         The world the shop is in
      * @param shop
-     *            The shop to load
+     *         The shop to load
      */
     public void loadShop(final String world, final Shop shop) {
         this.addShop(world, shop);
@@ -259,7 +282,7 @@ public class ShopManager {
      * REQUIRES * the world to be loaded
      *
      * @param shop
-     *            The shop to remove
+     *         The shop to remove
      */
     public void removeShop(final Shop shop) {
         final Location loc = shop.getLocation();
@@ -277,9 +300,9 @@ public class ShopManager {
      * loaded
      *
      * @param world
-     *            The name of the world
+     *         The name of the world
      * @param shop
-     *            The shop to add
+     *         The shop to add
      */
     private void addShop(final String world, final Shop shop) {
         HashMap<ShopChunk, HashMap<Location, Shop>> inWorld = this.getShops().get(world);
@@ -330,12 +353,21 @@ public class ShopManager {
                 // Tries to check their balance nicely to see if
                 // they can afford it.
                 if (plugin.getEcon().getBalance(shop.getOwner()) < amount * shop.getPrice()) {
-                    p.sendMessage(MsgUtil.p("the-owner-cant-afford-to-buy-from-you", format(amount * shop.getPrice()), format(plugin.getEcon().getBalance(shop.getOwner()))));
+                    p.sendMessage(MsgUtil.p("the-owner-cant-afford-to-buy-from-you",
+                                            format(amount * shop.getPrice()),
+                                            format(plugin.getEcon().getBalance(shop.getOwner()))));
                     return;
                 }
+                final ShopPurchaseEvent e = new ShopPurchaseEvent(shop, p, amount);
+                Bukkit.getPluginManager().callEvent(e);
+                if (e.isCancelled()) {
+                    return; // Cancelled
+                }
                 // Check for plugins faking econ.has(amount)
                 if (!plugin.getEcon().withdraw(shop.getOwner(), total)) {
-                    p.sendMessage(MsgUtil.p("the-owner-cant-afford-to-buy-from-you", format(amount * shop.getPrice()), format(plugin.getEcon().getBalance(shop.getOwner()))));
+                    p.sendMessage(MsgUtil.p("the-owner-cant-afford-to-buy-from-you",
+                                            format(amount * shop.getPrice()),
+                                            format(plugin.getEcon().getBalance(shop.getOwner()))));
                     return;
                 }
                 if (tax != 0) {
@@ -347,7 +379,10 @@ public class ShopManager {
             // Notify the owner of the purchase.
             String msg = MsgUtil.p("player-sold-to-your-store", p.getName(), "" + amount, shop.getDataName());
             if (space == amount) {
-                msg += "\n" + MsgUtil.p("shop-out-of-space", "" + shop.getLocation().getBlockX(), "" + shop.getLocation().getBlockY(), "" + shop.getLocation().getBlockZ());
+                msg += "\n" + MsgUtil.p("shop-out-of-space",
+                                        "" + shop.getLocation().getBlockX(),
+                                        "" + shop.getLocation().getBlockY(),
+                                        "" + shop.getLocation().getBlockZ());
             }
             MsgUtil.send(shop.getOwner(), msg);
         }
@@ -409,7 +444,13 @@ public class ShopManager {
             createShop(shop);
             p.sendMessage(MsgUtil.p("success-created-shop"));
             final Location loc = shop.getLocation();
-            plugin.log(String.format("玩家: %s 创建了一个 %s 商店 在 (%s - %s, %s, %s)", p.getName(), shop.getDataName(), loc.getWorld().getName(), loc.getX(), loc.getY(), loc.getZ()));
+            plugin.log(String.format("玩家: %s 创建了一个 %s 商店 在 (%s - %s, %s, %s)",
+                                     p.getName(),
+                                     shop.getDataName(),
+                                     loc.getWorld().getName(),
+                                     loc.getX(),
+                                     loc.getY(),
+                                     loc.getZ()));
             if (!plugin.getConfig().getBoolean("shop.lock")) {
                 // Warn them if they haven't been warned since
                 // reboot
@@ -445,8 +486,7 @@ public class ShopManager {
                 }
             }
         }
-        /* They didn't enter a number. */
+        /* They didn't enter a number. */ catch (final NumberFormatException ex) {
-        catch (final NumberFormatException ex) {
             p.sendMessage(MsgUtil.p("shop-creation-cancelled"));
         }
     }
@@ -463,25 +503,30 @@ public class ShopManager {
             p.sendMessage(MsgUtil.p("not-enough-space", "" + pSpace));
             return;
         }
-        final ShopPurchaseEvent e = new ShopPurchaseEvent(shop, p, amount);
-        Bukkit.getPluginManager().callEvent(e);
-        if (e.isCancelled()) { return; // Cancelled
-        }
         // Money handling
         if (!p.getName().equals(shop.getOwner())) {
             // Check their balance. Works with *most* economy
             // plugins*
             if (plugin.getEcon().getBalance(p.getName()) < amount * shop.getPrice()) {
-                p.sendMessage(MsgUtil.p("you-cant-afford-to-buy", format(amount * shop.getPrice()), format(plugin.getEcon().getBalance(p.getName()))));
+                p.sendMessage(MsgUtil.p("you-cant-afford-to-buy",
+                                        format(amount * shop.getPrice()),
+                                        format(plugin.getEcon().getBalance(p.getName()))));
                 return;
             }
+            final ShopPurchaseEvent e = new ShopPurchaseEvent(shop, p, amount);
+            Bukkit.getPluginManager().callEvent(e);
+            if (e.isCancelled()) {
+                return; // Cancelled
+            }
             // Don't tax them if they're purchasing from
             // themselves.
             // Do charge an amount of tax though.
             final double tax = plugin.getConfigManager().getTax();
             final double total = amount * shop.getPrice();
             if (!plugin.getEcon().withdraw(p.getName(), total)) {
-                p.sendMessage(MsgUtil.p("you-cant-afford-to-buy", format(amount * shop.getPrice()), format(plugin.getEcon().getBalance(p.getName()))));
+                p.sendMessage(MsgUtil.p("you-cant-afford-to-buy",
+                                        format(amount * shop.getPrice()),
+                                        format(plugin.getEcon().getBalance(p.getName()))));
                 return;
             }
             if (!shop.isUnlimited() || plugin.getConfig().getBoolean("shop.pay-unlimited-shop-owners")) {
@@ -494,13 +539,21 @@ public class ShopManager {
             if (plugin.getConfigManager().isShowTax()) {
                 String msg = MsgUtil.p("player-bought-from-your-store-tax", p.getName(), "" + amount, shop.getDataName(), Util.format((tax * total)));
                 if (stock == amount) {
-                    msg += "\n" + MsgUtil.p("shop-out-of-stock", "" + shop.getLocation().getBlockX(), "" + shop.getLocation().getBlockY(), "" + shop.getLocation().getBlockZ(), shop.getDataName());
+                    msg += "\n" + MsgUtil.p("shop-out-of-stock",
+                                            "" + shop.getLocation().getBlockX(),
+                                            "" + shop.getLocation().getBlockY(),
+                                            "" + shop.getLocation().getBlockZ(),
+                                            shop.getDataName());
                 }
                 MsgUtil.send(shop.getOwner(), msg);
             } else {
                 String msg = MsgUtil.p("player-bought-from-your-store", p.getName(), "" + amount, shop.getDataName());
                 if (stock == amount) {
-                    msg += "\n" + MsgUtil.p("shop-out-of-stock", "" + shop.getLocation().getBlockX(), "" + shop.getLocation().getBlockY(), "" + shop.getLocation().getBlockZ(), shop.getDataName());
+                    msg += "\n" + MsgUtil.p("shop-out-of-stock",
+                                            "" + shop.getLocation().getBlockX(),
+                                            "" + shop.getLocation().getBlockY(),
+                                            "" + shop.getLocation().getBlockZ(),
+                                            shop.getDataName());
                 }
                 MsgUtil.send(shop.getOwner(), msg);
             }
@@ -564,7 +617,8 @@ public class ShopManager {
                 }
                 shops = chunks.next().values().iterator();
             }
-            if (!shops.hasNext()) { return this.next(); // Skip to the next one (Empty iterator?)
+            if (!shops.hasNext()) {
+                return this.next(); // Skip to the next one (Empty iterator?)
             }
             current = shops.next();
             return current;

src/main/java/org/maxgamer/QuickShop/Util/MsgUtil.java

@@ -106,7 +106,7 @@ public class MsgUtil {
      */
     public static void send(final String player, final String message) {
         Bukkit.getScheduler().runTaskAsynchronously(plugin, () -> {
-            final OfflinePlayer p = Bukkit.getOfflinePlayer(player);
+            final Player p = Bukkit.getPlayerExact(player);
             if (p == null || !p.isOnline()) {
                 LinkedList<String> msgs = player_messages.computeIfAbsent(player, k -> new LinkedList<>());
                 msgs.add(message);
@@ -166,8 +166,7 @@ public class MsgUtil {
             p.sendMessage("");
             p.sendMessage(ChatColor.DARK_PURPLE + "+---------------------------------------------------+");
             p.sendMessage(ChatColor.DARK_PURPLE + "| " + MsgUtil.p("menu.shop-information"));
-            p.sendMessage(ChatColor.DARK_PURPLE + "| "
+            p.sendMessage(ChatColor.DARK_PURPLE + "| " + MsgUtil.p("menu.owner", shop.getOwner() == null ? (shop.isUnlimited() ? "系统商店" : "未知") : shop.getOwner()));
-                    + MsgUtil.p("menu.owner", Bukkit.getOfflinePlayer(shop.getOwner()).getName() == null ? (shop.isUnlimited() ? "系统商店" : "未知") : Bukkit.getOfflinePlayer(shop.getOwner()).getName()));
             final String msg = ChatColor.DARK_PURPLE + "| " + MsgUtil.p("menu.item", shop.getDataName());
             sendItemMessage(p, shop.getItem(), msg);
             if (Util.isTool(item.getType())) {