fix(view): 修复获取用户”可见前缀”列表时出现的判断错误的问题。

* 修正错误的ID

修正错误的ID，墨囊应为INK_SAC而非INK_SACK

* 增加PAPI变量: %UserPrefix_prefix_number% 玩家称号数量

* 增加PAPI变量: %UserPrefix_prefix_number% 玩家称号数量

* 增加PAPI变量: %UserPrefix_prefix_number% 玩家称号数量

* 增加PAPI变量: %UserPrefix_prefix_number% 玩家称号数量

* Update example-prefix.yml

* 增加PAPI变量: %UserPrefix_prefix_number% 玩家称号数量

* 增加PAPI变量: %UserPrefix_prefix_number% 玩家称号数量

* feat(placeholder): 添加用户所拥有前缀的数量变量

.documentation/ACTIONS.md

@@ -0,0 +1,31 @@
+# UserPrefix Actions 操作
+
+## 使用方式
+
+在 `actions` 配置节点下，可以配置多个操作，格式为 `[操作类型] {操作参数}`，例如：
+
+- `[CHAT] HELLO %player_name%!`
+- `[SOUND] ENTITY_PLAYER_LEVELUP`
+
+## 操作类型
+
+目前支持以下操作类型：
+- `CHAT` 以玩家聊天的形式发送，若需要发送指令则添加“/”前缀
+- `CONSOLE` 以后台的形式发送指令
+- `MESSAGE` 向玩家发送一条消息
+- `SOUND` 向玩家发送声音
+- `CLOSE` 关闭当前打开的GUI
+
+所有需要键入文本的类型均支持 [PlaceholderAPI](https://www.spigotmc.org/resources/6245/) 变量 。
+
+## 限定点击类型
+
+若您需要限定玩家点击的类型，如左键、右键等，则可以添加在操作类型后，以“`:`”分割，如：
+
+- `[CLOSE:LEFT]` 代表左键点击关闭
+- `[MESSAGE:MIDDLE] HELLO WORLD` 代表鼠标中间点击发送消息
+
+详细点击类型见 [`org.bukkit.event.inventory.ClickType`](https://hub.spigotmc.org/javadocs/spigot/org/bukkit/event/inventory/ClickType.html) 。
+
+
+

.documentation/README.md

@@ -13,6 +13,7 @@
 
 - 使用示例
     - [前缀配置文件预设示例](../src/main/resources/prefixes/example-prefix.yml)
+- [操作(Actions)配置](ACTIONS.md)
 
 ## [开发文档](JAVADOC-README.md)
 

README.md

@@ -92,11 +92,11 @@ README LANGUAGES [ [**中文**](README.md) | [English](README-en.md)  ]
 
 ## 配置文件示例
 
-### 基础配置文件 ([`config.yml`](src/main/java/cc/carm/plugin/userprefix/configuration/PluginConfig.java))
+### 基础配置文件 ([`config.yml`](src/main/java/cc/carm/plugin/userprefix/conf/PluginConfig.java))
 
 将会在服务器首次启动时生成，如果您想要修改配置，请在服务器启动后打开配置文件。
 
-### 消息配置文件 ([`messages.yml`](src/main/java/cc/carm/plugin/userprefix/configuration/PluginMessages.java))
+### 消息配置文件 ([`messages.yml`](src/main/java/cc/carm/plugin/userprefix/conf/PluginMessages.java))
 
 将会在服务器首次启动时生成，如果您想要修改配置，请在服务器启动后打开配置文件 。
 

pom.xml

@@ -13,13 +13,13 @@
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <maven.compiler.encoding>UTF-8</maven.compiler.encoding>
 
-        <easyplugin.version>1.4.9</easyplugin.version>
+        <easyplugin.version>1.4.18</easyplugin.version>
-        <mineconfig.version>2.0.1</mineconfig.version>
+        <mineconfig.version>2.3.0</mineconfig.version>
     </properties>
 
     <groupId>cc.carm.plugin</groupId>
     <artifactId>userprefix</artifactId>
-    <version>3.0.0</version>
+    <version>3.1.0</version>
 
     <name>UserPrefix</name>
     <description>轻便、高效、实时的用户前缀系统。</description>
@@ -61,6 +61,16 @@
 
     <repositories>
 
+        <repository>
+            <id>maven-central</id>
+            <url>https://repo1.maven.org/maven2/</url>
+        </repository>
+
+        <repository>
+            <id>sonatype</id>
+            <url>https://oss.sonatype.org/content/repositories/public/</url>
+        </repository>
+
         <repository>
             <id>spigot-repo</id>
             <url>https://hub.spigotmc.org/nexus/content/repositories/snapshots/</url>
@@ -71,16 +81,6 @@
             <url>https://repo.lucko.me/</url>
         </repository>
 
-        <repository>
-            <id>maven-central</id>
-            <url>https://repo1.maven.org/maven2/</url>
-        </repository>
-
-        <repository>
-            <id>sonatype-repo</id>
-            <url>https://oss.sonatype.org/content/repositories/snapshots/</url>
-        </repository>
-
         <repository>
             <id>EasyPlugin</id>
             <url>https://raw.githubusercontent.com/CarmJos/EasyPlugin/repo/</url>
@@ -113,6 +113,14 @@
             <optional>true</optional>
         </dependency>
 
+        <dependency>
+            <groupId>cc.carm.lib</groupId>
+            <artifactId>easyplugin-command</artifactId>
+            <version>${easyplugin.version}</version>
+            <scope>compile</scope>
+            <optional>true</optional>
+        </dependency>
+
         <dependency>
             <groupId>cc.carm.lib</groupId>
             <artifactId>easyplugin-gui</artifactId>
@@ -154,7 +162,7 @@
         <dependency>
             <groupId>net.luckperms</groupId>
             <artifactId>api</artifactId>
-            <version>5.3</version>
+            <version>5.4</version>
             <scope>provided</scope>
         </dependency>
 
@@ -205,30 +213,6 @@
                     </filesets>
                 </configuration>
             </plugin>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-javadoc-plugin</artifactId>
-                <version>3.2.0</version>
-                <configuration>
-                    <classifier>javadoc</classifier>
-                    <links>
-                        <link>https://javadoc.io/doc/org.jetbrains/annotations/</link>
-                    </links>
-                    <detectJavaApiLink>true</detectJavaApiLink>
-                    <encoding>UTF-8</encoding>
-                    <charset>UTF-8</charset>
-                    <docencoding>UTF-8</docencoding>
-                    <locale>zh_CN</locale>
-                </configuration>
-                <executions>
-                    <execution>
-                        <id>attach-javadocs</id>
-                        <goals>
-                            <goal>jar</goal>
-                        </goals>
-                    </execution>
-                </executions>
-            </plugin>
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-compiler-plugin</artifactId>
@@ -274,6 +258,7 @@
                     <finalName>${project.name}-${project.version}</finalName>
                     <outputDirectory>${project.basedir}/asset/</outputDirectory>
                     <createDependencyReducedPom>false</createDependencyReducedPom>
+                    <minimizeJar>true</minimizeJar>
                     <relocations>
                         <relocation>
                             <pattern>org.bstats</pattern>
@@ -299,6 +284,33 @@
                     </filters>
                 </configuration>
             </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-javadoc-plugin</artifactId>
+                <version>3.2.0</version>
+                <configuration>
+                    <classifier>javadoc</classifier>
+                    <links>
+                        <link>https://javadoc.io/doc/org.jetbrains/annotations/</link>
+                        <link>https://hub.spigotmc.org/javadocs/bukkit/</link>
+                        <link>https://carmjos.github.io/EasyPlugin/</link>
+                        <link>https://carmjos.github.io/MineConfiguration/</link>
+                    </links>
+                    <detectJavaApiLink>true</detectJavaApiLink>
+                    <encoding>UTF-8</encoding>
+                    <charset>UTF-8</charset>
+                    <docencoding>UTF-8</docencoding>
+                    <locale>zh_CN</locale>
+                </configuration>
+                <executions>
+                    <execution>
+                        <id>attach-javadocs</id>
+                        <goals>
+                            <goal>jar</goal>
+                        </goals>
+                    </execution>
+                </executions>
+            </plugin>
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-surefire-plugin</artifactId>

src/main/java/cc/carm/plugin/userprefix/Main.java

@@ -2,19 +2,21 @@ package cc.carm.plugin.userprefix;
 
 import cc.carm.lib.easyplugin.EasyPlugin;
 import cc.carm.lib.easyplugin.gui.GUI;
+import cc.carm.lib.easyplugin.gui.paged.AutoPagedGUI;
 import cc.carm.lib.easyplugin.updatechecker.GHUpdateChecker;
 import cc.carm.lib.easyplugin.utils.MessageUtils;
 import cc.carm.plugin.userprefix.command.AdminCommand;
 import cc.carm.plugin.userprefix.command.UserCommand;
-import cc.carm.plugin.userprefix.configuration.PluginConfig;
+import cc.carm.plugin.userprefix.conf.PluginConfig;
 import cc.carm.plugin.userprefix.hooker.UserPrefixExpansion;
 import cc.carm.plugin.userprefix.listener.ChatListener;
 import cc.carm.plugin.userprefix.listener.UserListener;
-import cc.carm.plugin.userprefix.listener.processor.UserNodeUpdateProcessor;
+import cc.carm.plugin.userprefix.listener.UserPermListener;
 import cc.carm.plugin.userprefix.manager.ConfigManager;
 import cc.carm.plugin.userprefix.manager.PrefixManager;
 import cc.carm.plugin.userprefix.manager.ServiceManager;
 import cc.carm.plugin.userprefix.manager.UserManager;
+import cc.carm.plugin.userprefix.ui.PrefixSelectGUI;
 import net.luckperms.api.event.user.UserDataRecalculateEvent;
 import org.bstats.bukkit.Metrics;
 import org.bstats.charts.SimplePie;
@@ -47,17 +49,21 @@ public class Main extends EasyPlugin {
 
         log("注册指令...");
         registerCommand("UserPrefix", new UserCommand());
-        registerCommand("UserPrefixAdmin", new AdminCommand());
+        registerCommand("UserPrefixAdmin", new AdminCommand(this));
 
         log("注册监听器...");
-        GUI.initialize(this);
         registerListener(new UserListener());
         registerListener(new ChatListener());
         ServiceManager.getService().getEventBus().subscribe(
                 this, UserDataRecalculateEvent.class,
-                UserNodeUpdateProcessor::process
+                UserPermListener::process
         );
 
+        log("初始化GUI管理器...");
+        GUI.initialize(this);
+        AutoPagedGUI.defaultNextPage = (PluginConfig.GUI.ITEMS.NEXT_PAGE::getItem);
+        AutoPagedGUI.defaultPreviousPage = (PluginConfig.GUI.ITEMS.PREV_PAGE::getItem);
+
         if (MessageUtils.hasPlaceholderAPI()) {
             log("注册变量...");
             new UserPrefixExpansion(getInstance()).register();
@@ -93,6 +99,20 @@ public class Main extends EasyPlugin {
         return true;
     }
 
+    @Override
+    protected void shutdown() {
+
+        log("关闭已被打开的GUI...");
+        Bukkit.getOnlinePlayers().stream().filter(GUI::hasOpenedGUI).forEach(player -> {
+            player.closeInventory();
+            GUI.removeOpenedGUI(player);
+            PrefixSelectGUI.removeOpening(player);
+        });
+
+        log("&7感谢您使用 &3&lUserPrefix " + getDescription().getVersion() + "&7!");
+        log("&7本插件由 &b&lYourCraft &7提供长期支持与维护。");
+    }
+
     @Override
     public boolean isDebugging() {
         return PluginConfig.DEBUG.getNotNull();
@@ -106,7 +126,7 @@ public class Main extends EasyPlugin {
         getInstance().debug(message);
     }
 
-    public static void serve(String... message) {
+    public static void severe(String... message) {
         getInstance().error(message);
     }
 

src/main/java/cc/carm/plugin/userprefix/UserPrefixAPI.java

@@ -1,6 +1,6 @@
 package cc.carm.plugin.userprefix;
 
-import cc.carm.plugin.userprefix.configuration.prefix.PrefixConfig;
+import cc.carm.plugin.userprefix.conf.prefix.PrefixConfig;
 import cc.carm.plugin.userprefix.manager.ConfigManager;
 import cc.carm.plugin.userprefix.manager.PrefixManager;
 import cc.carm.plugin.userprefix.manager.UserManager;

src/main/java/cc/carm/plugin/userprefix/command/AdminCommand.java

@@ -1,63 +1,38 @@
 package cc.carm.plugin.userprefix.command;
 
-import cc.carm.plugin.userprefix.UserPrefixAPI;
+import cc.carm.lib.easyplugin.command.CommandHandler;
-import cc.carm.plugin.userprefix.configuration.PluginMessages;
+import cc.carm.plugin.userprefix.command.admin.ListCommand;
-import cc.carm.plugin.userprefix.configuration.prefix.PrefixConfig;
+import cc.carm.plugin.userprefix.command.admin.ReloadCommand;
-import cc.carm.plugin.userprefix.ui.PrefixSelectGUI;
+import cc.carm.plugin.userprefix.command.admin.SetCommand;
-import org.bukkit.Bukkit;
+import cc.carm.plugin.userprefix.conf.PluginMessages;
-import org.bukkit.command.Command;
-import org.bukkit.command.CommandExecutor;
 import org.bukkit.command.CommandSender;
-import org.bukkit.entity.Player;
+import org.bukkit.plugin.java.JavaPlugin;
 import org.jetbrains.annotations.NotNull;
 
-public class AdminCommand implements CommandExecutor {
+public class AdminCommand extends CommandHandler {
+
+
+    public AdminCommand(@NotNull JavaPlugin plugin) {
+        super(plugin);
+        registerSubCommand(new ListCommand(this, "list", "l"));
+        registerSubCommand(new SetCommand(this, "set"));
+        registerSubCommand(new ReloadCommand(this, "reload"));
+    }
 
     @Override
-    public boolean onCommand(@NotNull CommandSender sender, @NotNull Command command, @NotNull String s, @NotNull String[] args) {
+    public Void noArgs(CommandSender sender) {
-        if (args.length == 1) {
-            String aim = args[0];
-            if (aim.equalsIgnoreCase("list")) {
-                PluginMessages.LIST.HEADER.send(sender);
-                for (PrefixConfig value : UserPrefixAPI.getPrefixManager().getPrefixes().values()) {
-                    PluginMessages.LIST.VALUE.send(sender,
-                            value.getWeight(), value.getIdentifier(),
-                            value.getName(), value.getPermission(),
-                            value.getContent(), sender.getName()
-                    );
-                }
-                return true;
-            } else if (aim.equalsIgnoreCase("reload")) {
-                long s1 = System.currentTimeMillis();
-                PrefixSelectGUI.closeAll(); // 关掉所有正在显示的前缀列表
-                try {
-                    UserPrefixAPI.getConfigManager().reload(); // 重载配置文件
-                    int num = UserPrefixAPI.getPrefixManager().loadPrefixes(); //加载重载后了的前缀配置
-                    for (Player onlinePlayer : Bukkit.getOnlinePlayers()) {
-                        UserPrefixAPI.getUserManager().checkPrefix(onlinePlayer, false);
-                        /*
-                         * 这里关掉loadOthers(为其他玩家更新)了。
-                         * 因为每个玩家更新的时候会为其他人更新自己，
-                         * 全部走完一遍后，所有玩家都会加载最新的前缀内容。
-                         */
-                        UserPrefixAPI.getUserManager().updatePrefixView(onlinePlayer, false);
-                    }
-                    PluginMessages.RELOAD.SUCCESS.send(sender, System.currentTimeMillis() - s1, num);
-                } catch (Exception e) {
-                    PluginMessages.RELOAD.FAILED.send(sender, e.getMessage());
-                    e.printStackTrace();
-                }
-                return true;
-            }
-            return help(sender);
-        }
         return help(sender);
     }
 
-    public static boolean help(CommandSender sender) {
+    @Override
+    public Void noPermission(CommandSender sender) {
+        PluginMessages.COMMAND_USAGE.NO_PERM.send(sender);
+        return null;
+    }
+
+    public static Void help(CommandSender sender) {
         PluginMessages.COMMAND_USAGE.ADMIN.send(sender);
-        return true;
+        return null;
     }
 
-
 }

src/main/java/cc/carm/plugin/userprefix/command/UserCommand.java

@@ -1,6 +1,6 @@
 package cc.carm.plugin.userprefix.command;
 
-import cc.carm.plugin.userprefix.configuration.PluginMessages;
+import cc.carm.plugin.userprefix.conf.PluginMessages;
 import cc.carm.plugin.userprefix.ui.PrefixSelectGUI;
 import org.bukkit.Bukkit;
 import org.bukkit.command.Command;

src/main/java/cc/carm/plugin/userprefix/command/admin/ListCommand.java

@@ -0,0 +1,32 @@
+package cc.carm.plugin.userprefix.command.admin;
+
+import cc.carm.lib.easyplugin.command.SubCommand;
+import cc.carm.plugin.userprefix.UserPrefixAPI;
+import cc.carm.plugin.userprefix.command.AdminCommand;
+import cc.carm.plugin.userprefix.conf.PluginMessages;
+import cc.carm.plugin.userprefix.conf.prefix.PrefixConfig;
+import org.bukkit.command.CommandSender;
+import org.bukkit.plugin.java.JavaPlugin;
+import org.jetbrains.annotations.NotNull;
+
+public class ListCommand extends SubCommand<AdminCommand> {
+
+    public ListCommand(@NotNull AdminCommand parent, String name, String... aliases) {
+        super(parent, name, aliases);
+    }
+
+    @Override
+    public Void execute(JavaPlugin plugin, CommandSender sender, String[] args) {
+        PluginMessages.LIST.HEADER.send(sender);
+        for (PrefixConfig value : UserPrefixAPI.getPrefixManager().getPrefixes().values()) {
+            PluginMessages.LIST.VALUE.send(sender,
+                    value.getWeight(), value.getIdentifier(),
+                    value.getName(), value.getPermission(),
+                    value.getContent(), sender.getName()
+            );
+        }
+        return null;
+    }
+
+
+}

src/main/java/cc/carm/plugin/userprefix/command/admin/ReloadCommand.java

@@ -0,0 +1,43 @@
+package cc.carm.plugin.userprefix.command.admin;
+
+import cc.carm.lib.easyplugin.command.SubCommand;
+import cc.carm.plugin.userprefix.UserPrefixAPI;
+import cc.carm.plugin.userprefix.command.AdminCommand;
+import cc.carm.plugin.userprefix.conf.PluginMessages;
+import cc.carm.plugin.userprefix.ui.PrefixSelectGUI;
+import org.bukkit.Bukkit;
+import org.bukkit.command.CommandSender;
+import org.bukkit.entity.Player;
+import org.bukkit.plugin.java.JavaPlugin;
+import org.jetbrains.annotations.NotNull;
+
+public class ReloadCommand extends SubCommand<AdminCommand> {
+
+    public ReloadCommand(@NotNull AdminCommand parent, String name, String... aliases) {
+        super(parent, name, aliases);
+    }
+
+    @Override
+    public Void execute(JavaPlugin plugin, CommandSender sender, String[] args) {
+        long s1 = System.currentTimeMillis();
+        PrefixSelectGUI.closeAll(); // 关掉所有正在显示的前缀列表
+        try {
+            UserPrefixAPI.getConfigManager().reload(); // 重载配置文件
+            int num = UserPrefixAPI.getPrefixManager().loadPrefixes(); //加载重载后了的前缀配置
+            for (Player onlinePlayer : Bukkit.getOnlinePlayers()) {
+                UserPrefixAPI.getUserManager().checkPrefix(onlinePlayer, false);
+                /*
+                 * 这里关掉loadOthers(为其他玩家更新)了。
+                 * 因为每个玩家更新的时候会为其他人更新自己，
+                 * 全部走完一遍后，所有玩家都会加载最新的前缀内容。
+                 */
+                UserPrefixAPI.getUserManager().updatePrefixView(onlinePlayer, false);
+            }
+            PluginMessages.RELOAD.SUCCESS.send(sender, System.currentTimeMillis() - s1, num);
+        } catch (Exception e) {
+            PluginMessages.RELOAD.FAILED.send(sender, e.getMessage());
+            e.printStackTrace();
+        }
+        return null;
+    }
+}

src/main/java/cc/carm/plugin/userprefix/command/admin/SetCommand.java

@@ -0,0 +1,54 @@
+package cc.carm.plugin.userprefix.command.admin;
+
+import cc.carm.lib.easyplugin.command.SubCommand;
+import cc.carm.plugin.userprefix.UserPrefixAPI;
+import cc.carm.plugin.userprefix.command.AdminCommand;
+import cc.carm.plugin.userprefix.conf.PluginMessages;
+import cc.carm.plugin.userprefix.conf.prefix.PrefixConfig;
+import org.bukkit.Bukkit;
+import org.bukkit.command.CommandSender;
+import org.bukkit.entity.Player;
+import org.bukkit.plugin.java.JavaPlugin;
+import org.jetbrains.annotations.NotNull;
+
+public class SetCommand extends SubCommand<AdminCommand> {
+
+    public SetCommand(@NotNull AdminCommand parent, String name, String... aliases) {
+        super(parent, name, aliases);
+    }
+
+    @Override
+    public Void execute(JavaPlugin plugin, CommandSender sender, String[] args) {
+        if (args.length < 2) return getParent().noArgs(sender);
+
+        Player target = Bukkit.getPlayer(args[0]);
+        if (target == null) {
+            PluginMessages.NOT_ONLINE.send(sender, args[0]);
+            return null;
+        }
+
+
+        PrefixConfig prefixConfig;
+        String prefixInput = args[1];
+        if (prefixInput.equalsIgnoreCase("default")) {
+            prefixConfig = UserPrefixAPI.getDefaultPrefix();
+        } else {
+            prefixConfig = UserPrefixAPI.getPrefixManager().getPrefix(prefixInput);
+        }
+
+        if (prefixConfig == null) {
+            PluginMessages.SET.PREFIX_NOT_FOUND.send(sender, prefixInput);
+            return null;
+        }
+
+        if (!prefixConfig.checkPermission(target)) {
+            PluginMessages.SET.NO_PERM.send(sender, target.getName(), prefixConfig.getName());
+            return null;
+        }
+
+        UserPrefixAPI.getUserManager().setPrefix(target, prefixConfig, true);
+        PluginMessages.SET.SUCCESS.send(sender, target.getName(), prefixConfig.getName());
+        return null;
+    }
+
+}

src/main/java/cc/carm/plugin/userprefix/conf/PluginConfig.java

@@ -1,16 +1,17 @@
-package cc.carm.plugin.userprefix.configuration;
+package cc.carm.plugin.userprefix.conf;
 
 import cc.carm.lib.configuration.core.ConfigurationRoot;
 import cc.carm.lib.configuration.core.annotation.ConfigPath;
 import cc.carm.lib.configuration.core.annotation.HeaderComment;
 import cc.carm.lib.configuration.core.value.ConfigValue;
+import cc.carm.lib.configuration.core.value.type.ConfiguredList;
 import cc.carm.lib.configuration.core.value.type.ConfiguredValue;
 import cc.carm.lib.easyplugin.gui.configuration.GUIActionConfiguration;
 import cc.carm.lib.easyplugin.gui.configuration.GUIActionType;
 import cc.carm.lib.easyplugin.gui.configuration.GUIItemConfiguration;
+import cc.carm.lib.mineconfiguration.bukkit.source.CraftSectionWrapper;
 import cc.carm.lib.mineconfiguration.bukkit.value.ConfiguredItem;
 import cc.carm.lib.mineconfiguration.bukkit.value.ConfiguredSound;
-import cc.carm.plugin.userprefix.configuration.reader.GUIItemReader;
 import org.bukkit.Material;
 import org.bukkit.enchantments.Enchantment;
 import org.bukkit.inventory.ItemFlag;
@@ -37,7 +38,7 @@ public class PluginConfig extends ConfigurationRoot {
     public static final ConfigValue<Boolean> CHECK_UPDATE = ConfiguredValue.of(Boolean.class, true);
 
     @HeaderComment({"自定义存储位置设定", "可以规定到远程文件夹中去加载前缀配置"})
-    public static final class CUSTOM_STORAGE {
+    public static final class CUSTOM_STORAGE extends ConfigurationRoot {
 
         @HeaderComment({"是否启用自定义存储位置"})
         public static final ConfigValue<Boolean> ENABLE = ConfiguredValue.of(Boolean.class, false);
@@ -52,7 +53,7 @@ public class PluginConfig extends ConfigurationRoot {
     }
 
     @HeaderComment("功能设定")
-    public static class FUNCTIONS {
+    public static class FUNCTIONS extends ConfigurationRoot {
 
         @ConfigPath("on-name-prefix")
         @HeaderComment({"头顶与TabList前缀功能，该方法用到了玩家名计分板接口，如有冲突请关掉哦~"})
@@ -78,28 +79,28 @@ public class PluginConfig extends ConfigurationRoot {
                 "- 注意聊天格式需要遵守Bukkit原格式，即不得缺失 “%1$s” 和 “%2$s” 。",
                 "- 本插件的聊天功能不影响其他插件对聊天事件的操作。"
         })
-        public static final class CHAT {
+        public static final class CHAT extends ConfigurationRoot {
 
             @HeaderComment("是否开启本功能")
-            public static ConfigValue<Boolean> ENABLE = ConfiguredValue.of(Boolean.class, false);
+            public static final ConfigValue<Boolean> ENABLE = ConfiguredValue.of(Boolean.class, false);
             @HeaderComment({
                     "聊天的格式，注意 “%1$s” 和 “%2$s” 不可缺少。",
                     "- %1$s -> 玩家名", "- %2$s -> 聊天内容"
             })
-            public static ConfigValue<String> FORMAT = ConfiguredValue.of(String.class, "<%1$s> %2$s");
+            public static final ConfigValue<String> FORMAT = ConfiguredValue.of(String.class, "<%1$s> %2$s");
 
         }
 
     }
 
     @HeaderComment({"前缀GUI界面设定"})
-    public static class GUI {
+    public static class GUI extends ConfigurationRoot {
 
         @HeaderComment("GUI的标题")
         public static final ConfigValue<String> TITLE = ConfiguredValue.of(String.class, "&f&l我的前缀 &8| 列表");
 
         @HeaderComment("GUI中的按钮")
-        public static final class ITEMS {
+        public static final class ITEMS extends ConfigurationRoot {
 
             @HeaderComment("前往下一页的物品 (只有存在下一页时才会显示)")
             public static final ConfiguredItem NEXT_PAGE = ConfiguredItem.create()
@@ -120,9 +121,12 @@ public class PluginConfig extends ConfigurationRoot {
             public static final ConfigValue<GUIItemConfiguration> BACK = ConfiguredValue.builder(GUIItemConfiguration.class)
                     .fromSection()
                     .serializeValue(GUIItemConfiguration::serialize)
-                    .parseValue((v, d) -> GUIItemReader.readFrom(v))
+                    .parseValue((v, d) -> {
+                        if (!(v instanceof CraftSectionWrapper)) return null;
+                        return GUIItemConfiguration.readFrom(((CraftSectionWrapper) v).getSource());
+                    })
                     .defaults(new GUIItemConfiguration(
-                            Material.BARRIER, 0, "&c&l返回",
+                            Material.BARRIER, 1, 0, "&c&l返回",
                             Collections.singletonList("&f点击即可返回上一菜单"),
                             Collections.singletonList(GUIActionConfiguration.of(GUIActionType.CHAT, "/menu")),
                             Collections.singletonList(49)
@@ -133,7 +137,7 @@ public class PluginConfig extends ConfigurationRoot {
     }
 
     @HeaderComment({"相关的声音，留空则不播放声音", "格式为 【声音名:音量:音调】 或 【声音名:音量】 或 【声音名】"})
-    public static final class SOUNDS {
+    public static final class SOUNDS extends ConfigurationRoot {
 
         public static final ConfiguredSound GUI_OPEN = ConfiguredSound.of("BLOCK_NOTE_BLOCK_PLING", 0.5F, 0.8F);
         public static final ConfiguredSound GUI_CLICK = ConfiguredSound.of("UI_BUTTON_CLICK");
@@ -143,7 +147,7 @@ public class PluginConfig extends ConfigurationRoot {
     }
 
     @HeaderComment({"默认前缀配置"})
-    public static final class DEFAULT_PREFIX {
+    public static final class DEFAULT_PREFIX extends ConfigurationRoot {
 
         @HeaderComment("默认前缀的显示名称，用于在消息提示中显示。")
         public static final ConfigValue<String> NAME = ConfiguredValue.of(String.class, "默认前缀");
@@ -154,8 +158,13 @@ public class PluginConfig extends ConfigurationRoot {
         @HeaderComment({"默认前缀的内容，即用于显示的实际前缀"})
         public static final ConfigValue<String> CONTENT = ConfiguredValue.of(String.class, "&r");
 
+        @HeaderComment({"选择默认前缀时执行的操作"})
+        public static final ConfiguredList<String> ACTIONS = ConfiguredList.builder(String.class).fromString()
+                .defaults("[CONSOLE] " + "say %player_name% 选择了默认前缀")
+                .build();
+
         @HeaderComment({"默认前缀的显示物品"})
-        public static final class ITEM {
+        public static final class ITEM extends ConfigurationRoot {
 
             @HeaderComment({"当未选择默认前缀时显示的物品"})
             public static final ConfiguredItem NOT_USING = ConfiguredItem.create()

src/main/java/cc/carm/plugin/userprefix/conf/PluginMessages.java

@@ -1,4 +1,4 @@
-package cc.carm.plugin.userprefix.configuration;
+package cc.carm.plugin.userprefix.conf;
 
 import cc.carm.lib.configuration.core.ConfigurationRoot;
 import cc.carm.lib.configuration.core.annotation.HeaderComment;
@@ -6,7 +6,7 @@ import cc.carm.lib.mineconfiguration.bukkit.value.ConfiguredMessageList;
 
 public class PluginMessages extends ConfigurationRoot {
 
-    public static final class COMMAND_USAGE {
+    public static final class COMMAND_USAGE extends ConfigurationRoot {
 
         public static ConfiguredMessageList<String> CONSOLE = ConfiguredMessageList.asStrings().defaults(
                 "&f请输入 &b/prefix <玩家ID> &f为指定玩家打开前缀GUI。"
@@ -16,12 +16,22 @@ public class PluginMessages extends ConfigurationRoot {
                 "&3&l用户前缀系统 &f帮助",
                 "&8# &f/upa list",
                 "&8- &7查看当前前缀列表。",
+                "&8# &f/upa set &b<玩家ID> &b<前缀ID>",
+                "&8- &7为玩家设定指定前缀。",
+                "&8- &7&o注意：玩家必须拥有指定前缀的权限。",
                 "&8# &f/upa reload",
                 "&8- &7重载前缀配置。"
         ).build();
 
+        public static ConfiguredMessageList<String> NO_PERM = ConfiguredMessageList.asStrings()
+                .defaults("&c&l抱歉！&f但您没有权限使用该指令。")
+                .build();
+
     }
 
+    public static ConfiguredMessageList<String> NOT_ONLINE = ConfiguredMessageList.asStrings()
+            .defaults("&7玩家 &b%(player) &7并不在线。")
+            .params("player").build();
 
     public static ConfiguredMessageList<String> SELECTED = ConfiguredMessageList.asStrings()
             .defaults("&7您选择了 &f%(name) &7作为当前显示的前缀。")
@@ -37,7 +47,7 @@ public class PluginMessages extends ConfigurationRoot {
             .defaults("&7您先前使用的前缀已被移除，现在已为您重新调整为 &f%(newName) &7。")
             .params("newName").build();
 
-    public static final class RELOAD {
+    public static final class RELOAD extends ConfigurationRoot {
 
         public static ConfiguredMessageList<String> SUCCESS = ConfiguredMessageList.asStrings()
                 .defaults("&a&l重载完成！&7耗时 &f%(time)ms&7，共加载了 &b%(count) &7个前缀。")
@@ -48,9 +58,26 @@ public class PluginMessages extends ConfigurationRoot {
                 .params("error").build();
     }
 
+    public static final class SET extends ConfigurationRoot {
+
+        public static ConfiguredMessageList<String> SUCCESS = ConfiguredMessageList.asStrings()
+                .defaults("&a&l设置成功！&7成功设定玩家 &b%(player) &f的前缀为 &r%(prefix) &f。")
+                .params("player", "prefix").build();
+
+        public static ConfiguredMessageList<String> PREFIX_NOT_FOUND = ConfiguredMessageList.asStrings()
+                .defaults("&c&l无法设置！&7不存在ID为 &b%(prefix) &7的前缀。")
+                .params("prefix").build();
+
+        public static ConfiguredMessageList<String> NO_PERM = ConfiguredMessageList.asStrings()
+                .defaults("&c&l无法设置！&7玩家 &b%(player) &7并没有前缀 &r%(prefix) &7的前缀。")
+                .params("player", "prefix")
+                .build();
+
+    }
+
 
     @HeaderComment("管理员使用的 “/upa list” 指令的格式")
-    public static final class LIST {
+    public static final class LIST extends ConfigurationRoot {
 
         public static ConfiguredMessageList<String> HEADER = ConfiguredMessageList.asStrings()
                 .defaults("&3&l用户前缀系统 &f前缀列表").build();
@@ -59,7 +86,7 @@ public class PluginMessages extends ConfigurationRoot {
                 "&8#%(weight) &f%(identifier)",
                 "&8- &7显示名 &r%(name) &7权限 &r%(permission)",
                 "&8- &7内容示例&r %(content) %(sender_name)"
-        ).params("weight", "identifier", "name", "permission", "sender_name").build();
+        ).params("weight", "identifier", "name", "permission", "content", "sender_name").build();
 
     }
 

src/main/java/cc/carm/plugin/userprefix/conf/prefix/PrefixConfig.java

@@ -1,22 +1,18 @@
-package cc.carm.plugin.userprefix.configuration.prefix;
+package cc.carm.plugin.userprefix.conf.prefix;
 
+import cc.carm.lib.easyplugin.gui.configuration.GUIActionConfiguration;
 import cc.carm.lib.easyplugin.utils.ColorParser;
 import cc.carm.lib.mineconfiguration.bukkit.data.ItemConfig;
 import cc.carm.plugin.userprefix.manager.ServiceManager;
-import org.bukkit.configuration.file.FileConfiguration;
 import org.bukkit.entity.Player;
 import org.bukkit.inventory.ItemStack;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 
-import java.io.File;
+import java.util.List;
 
 public class PrefixConfig {
 
-
-    private @Nullable File dataFile;
-    private @Nullable FileConfiguration configuration;
-
     protected final @NotNull String identifier;
 
     protected final @NotNull String name;
@@ -26,12 +22,15 @@ public class PrefixConfig {
 
     protected final @Nullable String permission;
 
+    protected final @NotNull List<GUIActionConfiguration> actions;
+
     protected final @NotNull ItemConfig itemHasPermission;
     protected final @Nullable ItemConfig itemNoPermission;
     protected final @Nullable ItemConfig itemWhenUsing;
 
     public PrefixConfig(@NotNull String identifier, @NotNull String name,
                         @NotNull String content, int weight, @Nullable String permission,
+                        @NotNull List<GUIActionConfiguration> actions,
                         @NotNull ItemConfig itemHasPermission,
                         @Nullable ItemConfig itemWhenUsing,
                         @Nullable ItemConfig itemNoPermission) {
@@ -40,6 +39,7 @@ public class PrefixConfig {
         this.content = content;
         this.weight = weight;
         this.permission = permission;
+        this.actions = actions;
         this.itemHasPermission = itemHasPermission;
         this.itemNoPermission = itemNoPermission;
         this.itemWhenUsing = itemWhenUsing;
@@ -82,7 +82,7 @@ public class PrefixConfig {
 
     @Nullable
     public ItemStack getItemWhenUsing(@Nullable Player player) {
-        if (this.itemWhenUsing == null) return getItemHasPermission(player);
+        if (this.itemWhenUsing == null) return null;
         else return this.itemWhenUsing.getItemStack(player);
     }
 
@@ -90,8 +90,12 @@ public class PrefixConfig {
         return getPermission() == null;
     }
 
+    public void executeActions(@NotNull Player player) {
+        this.actions.forEach(action -> action.executeAction(player));
+    }
+
     public boolean isVisible(Player player) {
-        return this.itemWhenUsing != null || checkPermission(player);
+        return this.itemNoPermission != null || checkPermission(player);
     }
 
     /**

src/main/java/cc/carm/plugin/userprefix/configuration/reader/GUIItemReader.java

@@ -1,41 +0,0 @@
-package cc.carm.plugin.userprefix.configuration.reader;
-
-import cc.carm.lib.configuration.core.source.ConfigurationWrapper;
-import cc.carm.lib.easyplugin.gui.configuration.GUIActionConfiguration;
-import cc.carm.lib.easyplugin.gui.configuration.GUIItemConfiguration;
-import org.bukkit.Material;
-import org.jetbrains.annotations.Nullable;
-
-import java.util.ArrayList;
-import java.util.Collections;
-import java.util.List;
-import java.util.Optional;
-
-public class GUIItemReader {
-
-    public static @Nullable GUIItemConfiguration readFrom(@Nullable ConfigurationWrapper section) {
-        if (section == null) return null;
-        String material = Optional.ofNullable(section.getString("type")).orElse("STONE");
-        Material type = Optional.ofNullable(Material.matchMaterial(material)).orElse(Material.STONE);
-        int data = section.getInt("data", 0);
-        String name = section.getString("name");
-        List<String> lore = section.getStringList("lore");
-
-        List<Integer> slots = section.getIntegerList("slots");
-        int slot = section.getInt("slot", 0);
-
-        List<String> actionsString = section.getStringList("actions");
-        List<GUIActionConfiguration> actions = new ArrayList<>();
-        for (String actionString : actionsString) {
-            GUIActionConfiguration action = GUIActionConfiguration.deserialize(actionString);
-            if (action == null) continue;
-            actions.add(action);
-        }
-
-        return new GUIItemConfiguration(
-                type, data, name, lore, actions,
-                slots.size() > 0 ? slots : Collections.singletonList(slot)
-        );
-    }
-
-}

src/main/java/cc/carm/plugin/userprefix/event/UserPrefixChangeEvent.java

@@ -1,7 +1,7 @@
 package cc.carm.plugin.userprefix.event;
 
 import cc.carm.plugin.userprefix.Main;
-import cc.carm.plugin.userprefix.configuration.prefix.PrefixConfig;
+import cc.carm.plugin.userprefix.conf.prefix.PrefixConfig;
 import org.bukkit.entity.Player;
 import org.bukkit.event.Cancellable;
 import org.bukkit.event.HandlerList;

src/main/java/cc/carm/plugin/userprefix/event/UserPrefixExpireEvent.java

@@ -1,7 +1,7 @@
 package cc.carm.plugin.userprefix.event;
 
 import cc.carm.plugin.userprefix.Main;
-import cc.carm.plugin.userprefix.configuration.prefix.PrefixConfig;
+import cc.carm.plugin.userprefix.conf.prefix.PrefixConfig;
 import org.bukkit.entity.Player;
 import org.bukkit.event.HandlerList;
 import org.jetbrains.annotations.NotNull;

src/main/java/cc/carm/plugin/userprefix/hooker/UserPrefixExpansion.java

@@ -2,7 +2,7 @@ package cc.carm.plugin.userprefix.hooker;
 
 import cc.carm.plugin.userprefix.Main;
 import cc.carm.plugin.userprefix.UserPrefixAPI;
-import cc.carm.plugin.userprefix.configuration.prefix.PrefixConfig;
+import cc.carm.plugin.userprefix.conf.prefix.PrefixConfig;
 import me.clip.placeholderapi.expansion.PlaceholderExpansion;
 import org.bukkit.entity.Player;
 import org.jetbrains.annotations.NotNull;
@@ -14,7 +14,7 @@ public class UserPrefixExpansion extends PlaceholderExpansion {
 
     protected final @NotNull Main plugin;
     protected final @NotNull List<String> placeholders = Arrays.asList(
-            "%UserPrefix_prefix%", "%UserPrefix_weight%",
+            "%UserPrefix_prefix%", "%UserPrefix_amount%",  "%UserPrefix_weight%",
             "%UserPrefix_identifier%", "%UserPrefix_name%",
             "%UserPrefix_has_<Identifier>%"
     );
@@ -65,6 +65,9 @@ public class UserPrefixExpansion extends PlaceholderExpansion {
             case "prefix": {
                 return UserPrefixAPI.getUserManager().getPrefix(player).getContent();
             }
+            case "amount": {
+                return String.valueOf(UserPrefixAPI.getUserManager().getUsablePrefixes(player).size() + 1);
+            }
             case "name": {
                 return UserPrefixAPI.getUserManager().getPrefix(player).getName();
             }

src/main/java/cc/carm/plugin/userprefix/listener/ChatListener.java

@@ -2,8 +2,7 @@ package cc.carm.plugin.userprefix.listener;
 
 import cc.carm.lib.easyplugin.utils.MessageUtils;
 import cc.carm.plugin.userprefix.Main;
-import cc.carm.plugin.userprefix.configuration.PluginConfig;
+import cc.carm.plugin.userprefix.conf.PluginConfig;
-import me.clip.placeholderapi.PlaceholderAPI;
 import org.bukkit.event.EventHandler;
 import org.bukkit.event.Listener;
 import org.bukkit.event.player.AsyncPlayerChatEvent;
@@ -20,8 +19,8 @@ public class ChatListener implements Listener {
         try {
             event.setFormat(MessageUtils.setPlaceholders(event.getPlayer(), format));
         } catch (Exception exception) {
-            Main.serve("请检查配置文件中聊天相关是否配置正确。");
+            Main.severe("请检查配置文件中聊天相关是否配置正确。");
-            Main.serve("Please check the chat configuration.");
+            Main.severe("Please check the chat configuration.");
             exception.printStackTrace();
         }
 

src/main/java/cc/carm/plugin/userprefix/listener/UserPermListener.java

@@ -1,4 +1,4 @@
-package cc.carm.plugin.userprefix.listener.processor;
+package cc.carm.plugin.userprefix.listener;
 
 import cc.carm.plugin.userprefix.Main;
 import cc.carm.plugin.userprefix.UserPrefixAPI;
@@ -7,7 +7,7 @@ import net.luckperms.api.event.user.UserDataRecalculateEvent;
 import org.bukkit.Bukkit;
 import org.bukkit.entity.Player;
 
-public class UserNodeUpdateProcessor {
+public class UserPermListener {
 
     public static void process(UserDataRecalculateEvent event) {
         Player player = Bukkit.getPlayer(event.getUser().getUniqueId());

src/main/java/cc/carm/plugin/userprefix/manager/ConfigManager.java

@@ -3,8 +3,8 @@ package cc.carm.plugin.userprefix.manager;
 import cc.carm.lib.configuration.core.source.ConfigurationProvider;
 import cc.carm.lib.easyplugin.utils.JarResourceUtils;
 import cc.carm.lib.mineconfiguration.bukkit.MineConfiguration;
-import cc.carm.plugin.userprefix.configuration.PluginConfig;
+import cc.carm.plugin.userprefix.conf.PluginConfig;
-import cc.carm.plugin.userprefix.configuration.PluginMessages;
+import cc.carm.plugin.userprefix.conf.PluginMessages;
 
 import java.io.File;
 import java.io.IOException;

src/main/java/cc/carm/plugin/userprefix/manager/PrefixManager.java

@@ -1,10 +1,10 @@
 package cc.carm.plugin.userprefix.manager;
 
+import cc.carm.lib.easyplugin.gui.configuration.GUIActionConfiguration;
 import cc.carm.lib.mineconfiguration.bukkit.data.ItemConfig;
-import cc.carm.lib.mineconfiguration.bukkit.source.CraftSectionWrapper;
 import cc.carm.plugin.userprefix.Main;
-import cc.carm.plugin.userprefix.configuration.PluginConfig;
+import cc.carm.plugin.userprefix.conf.PluginConfig;
-import cc.carm.plugin.userprefix.configuration.prefix.PrefixConfig;
+import cc.carm.plugin.userprefix.conf.prefix.PrefixConfig;
 import org.bukkit.Material;
 import org.bukkit.configuration.ConfigurationSection;
 import org.bukkit.configuration.file.FileConfiguration;
@@ -41,9 +41,9 @@ public class PrefixManager {
 
         String[] filesList = prefixDataFolder.list();
         if (filesList == null || filesList.length < 1) {
-            Main.serve("配置文件夹中暂无任何前缀配置问，请检查。");
+            Main.severe("配置文件夹中暂无任何前缀配置问，请检查。");
-            Main.serve("There's no configured prefix.");
+            Main.severe("There's no configured prefix.");
-            Main.serve("Path: " + prefixDataFolder.getAbsolutePath());
+            Main.severe("Path: " + prefixDataFolder.getAbsolutePath());
             return;
         }
 
@@ -57,12 +57,12 @@ public class PrefixManager {
         if (files.size() > 0) {
             for (File file : files) {
                 try {
-                    PrefixConfig prefix = adPrefix(file);
+                    PrefixConfig prefix = addPrefix(file);
                     Main.debugging("完成前缀加载 " + prefix.getIdentifier() + " : " + prefix.getName());
                     loaded.put(prefix.getIdentifier(), prefix);
                 } catch (Exception ex) {
-                    Main.serve("在加载前缀 " + file.getAbsolutePath() + " 时出错，请检查配置！");
+                    Main.severe("在加载前缀 " + file.getAbsolutePath() + " 时出错，请检查配置！");
-                    Main.serve("Error occurred when loading prefix #" + file.getAbsolutePath() + " !");
+                    Main.severe("Error occurred when loading prefix #" + file.getAbsolutePath() + " !");
                     ex.printStackTrace();
                 }
             }
@@ -78,6 +78,7 @@ public class PrefixManager {
                 PluginConfig.DEFAULT_PREFIX.CONTENT.getNotNull(),
                 PluginConfig.DEFAULT_PREFIX.WEIGHT.getNotNull(),
                 null,
+                readActions(PluginConfig.DEFAULT_PREFIX.ACTIONS.get()),
                 PluginConfig.DEFAULT_PREFIX.ITEM.NOT_USING.getNotNull(),
                 PluginConfig.DEFAULT_PREFIX.ITEM.USING.get(),
                 null
@@ -122,10 +123,11 @@ public class PrefixManager {
         }
     }
 
-    public static @NotNull PrefixConfig adPrefix(@NotNull File file) throws Exception {
+    public static @NotNull PrefixConfig addPrefix(@NotNull File file) throws Exception {
         FileConfiguration configuration = YamlConfiguration.loadConfiguration(file);
         String identifier = configuration.getString("identifier");
-        if (identifier == null) throw new Exception("配置文件 " + file.getAbsolutePath() + " 中没有配置前缀的唯一标识。");
+        if (identifier == null)
+            throw new Exception("配置文件 " + file.getAbsolutePath() + " 中没有配置前缀的唯一标识。");
 
         String name = configuration.getString("name");
         if (name == null) throw new Exception("配置文件 " + file.getAbsolutePath() + " 中没有配置前缀的显示名称。");
@@ -135,6 +137,7 @@ public class PrefixManager {
                 configuration.getString("content", "&r"),
                 configuration.getInt("weight", 1),
                 configuration.getString("permission"),
+                readActions(configuration.getStringList("actions")),
                 readItem(
                         configuration.getConfigurationSection("item.has-perm"),
                         new ItemConfig(Material.STONE, name, Arrays.asList(" ", "§a➥ 点击切换到该前缀"))
@@ -148,8 +151,11 @@ public class PrefixManager {
     @Contract("_,!null->!null")
     protected static ItemConfig readItem(@Nullable ConfigurationSection section, @Nullable ItemConfig defaultValue) throws Exception {
         if (section == null) return defaultValue;
-        else return ItemConfig.deserialize(CraftSectionWrapper.of(section));
+        else return ItemConfig.deserialize(section);
     }
 
+    protected static List<GUIActionConfiguration> readActions(@NotNull List<String> strings) {
+        return strings.stream().map(GUIActionConfiguration::deserialize).filter(Objects::nonNull).collect(Collectors.toList());
+    }
 
 }

src/main/java/cc/carm/plugin/userprefix/manager/UserManager.java

@@ -3,9 +3,9 @@ package cc.carm.plugin.userprefix.manager;
 import cc.carm.lib.easyplugin.gui.GUI;
 import cc.carm.plugin.userprefix.Main;
 import cc.carm.plugin.userprefix.UserPrefixAPI;
-import cc.carm.plugin.userprefix.configuration.PluginConfig;
+import cc.carm.plugin.userprefix.conf.PluginConfig;
-import cc.carm.plugin.userprefix.configuration.PluginMessages;
+import cc.carm.plugin.userprefix.conf.PluginMessages;
-import cc.carm.plugin.userprefix.configuration.prefix.PrefixConfig;
+import cc.carm.plugin.userprefix.conf.prefix.PrefixConfig;
 import cc.carm.plugin.userprefix.event.UserPrefixChangeEvent;
 import cc.carm.plugin.userprefix.event.UserPrefixExpireEvent;
 import cc.carm.plugin.userprefix.hooker.UserNameTag;
@@ -141,9 +141,7 @@ public class UserManager {
             }
 
             UserPrefixChangeEvent.call(player, currentPrefix, newPrefix, (after) -> {
-                if (after != null) {
+                if (after != null) setPrefix(player, after, updateView);
-                    setPrefix(player, after, updateView);
-                }
                 checkingPlayers.remove(player.getUniqueId());
             });
 
@@ -183,6 +181,7 @@ public class UserManager {
      */
     public void setPrefix(Player player, PrefixConfig prefix, boolean updateView) {
         setPrefixData(player, prefix.getIdentifier());
+        prefix.executeActions(player);
         if (updateView) updatePrefixView(player, false);
     }
 

src/main/java/cc/carm/plugin/userprefix/ui/PrefixSelectGUI.java

@@ -4,9 +4,10 @@ import cc.carm.lib.easyplugin.gui.GUIItem;
 import cc.carm.lib.easyplugin.gui.GUIType;
 import cc.carm.lib.easyplugin.gui.paged.AutoPagedGUI;
 import cc.carm.plugin.userprefix.UserPrefixAPI;
-import cc.carm.plugin.userprefix.configuration.PluginConfig;
+import cc.carm.plugin.userprefix.conf.PluginConfig;
-import cc.carm.plugin.userprefix.configuration.PluginMessages;
+import cc.carm.plugin.userprefix.conf.PluginMessages;
-import cc.carm.plugin.userprefix.configuration.prefix.PrefixConfig;
+import cc.carm.plugin.userprefix.conf.prefix.PrefixConfig;
+import cc.carm.plugin.userprefix.event.UserPrefixChangeEvent;
 import org.bukkit.entity.Player;
 import org.bukkit.event.inventory.ClickType;
 
@@ -51,15 +52,22 @@ public class PrefixSelectGUI extends AutoPagedGUI {
                 addItem(new GUIItem(prefix.getItemWhenUsing(player) != null ? prefix.getItemWhenUsing(player) : prefix.getItemHasPermission(player)));
             } else if (prefix.checkPermission(player)) {
                 addItem(new GUIItem(prefix.getItemHasPermission(player)) {
+
                     @Override
-                    public void onClick(ClickType type) {
+                    public void onClick(Player clicker, ClickType type) {
                         player.closeInventory();
                         //再次检查，防止打开GUI后、选择前的时间段内权限消失
                         if (prefix.checkPermission(player)) {
-                            UserPrefixAPI.getUserManager().setPrefix(player, prefix, true);
 
+                            // 发送消息与提示
                             PluginConfig.SOUNDS.PREFIX_CHANGE.playTo(player);
                             PluginMessages.SELECTED.send(player, prefix.getName());
+
+                            UserPrefixChangeEvent.call(player, usingPrefix, prefix, config -> {
+                                if (config == null) return;
+                                UserPrefixAPI.getUserManager().setPrefix(player, config, true);
+                            });
+
                         } else {
                             PluginConfig.SOUNDS.GUI_CLICK.playTo(player);
                         }
@@ -68,7 +76,7 @@ public class PrefixSelectGUI extends AutoPagedGUI {
             } else {
                 addItem(new GUIItem(prefix.getItemNoPermission(player)) {
                     @Override
-                    public void onClick(ClickType type) {
+                    public void onClick(Player clicker, ClickType type) {
                         PluginConfig.SOUNDS.GUI_CLICK.playTo(player);
                     }
                 });

src/main/resources/en_US/example-prefix.yml

@@ -22,6 +22,11 @@ weight: 1
 # (because it is impossible to display items without permission at all)
 permission: "yc.vip"
 
+# Actions when select [Unnecessary]
+#  Please check https://github.com/CarmJos/UserPrefix/tree/master/.documentation/ACTIONS.md
+actions:
+  - "[CONSOLE] say %player_name% selected PRO ！"
+
 item:
   # itemHasPermission  [Necessary]
   # This Item will be displayed when player has permission

src/main/resources/prefixes/example-prefix.yml

@@ -22,6 +22,13 @@ weight: 1
 # 如果没有就是人人都能用，也代表不用配置“itemNoPermission”了(因为压根不可能显示没权限时候的物品)
 permission: "yc.pro"
 
+# 选择这个前缀时执行的操作 [非必须]
+#  用于在玩家选择/取消选择前缀时执行相应动作，以便于实现一些特殊的功能。
+#  具体操作类型详见介绍，前缀操作不支持限定点击类型。
+#  https://github.com/CarmJos/UserPrefix/tree/master/.documentation/ACTIONS.md
+actions:
+  - "[CONSOLE] say %player_name% 选择了 Pro会员前缀 ！"
+
 # 该前缀的GUI物品配置
 item: