diff --git a/src/main/gg/frog/mc/permissionstime/PluginMain.java b/src/main/gg/frog/mc/permissionstime/PluginMain.java
index 7bc7d0d..c916888 100644
--- a/src/main/gg/frog/mc/permissionstime/PluginMain.java
+++ b/src/main/gg/frog/mc/permissionstime/PluginMain.java
@@ -1,9 +1,12 @@
 package gg.frog.mc.permissionstime;
 
 import java.util.Locale;
+import java.util.UUID;
 import java.util.logging.Logger;
 
 import org.bukkit.Bukkit;
+import org.bukkit.OfflinePlayer;
+import org.bukkit.entity.Player;
 import org.bukkit.plugin.RegisteredServiceProvider;
 import org.bukkit.plugin.java.JavaPlugin;
 import org.mcstats.Metrics;
@@ -18,16 +21,16 @@ import net.milkbowl.vault.permission.Permission;
 
 public class PluginMain extends JavaPlugin {
 
-    public static String PLUGIN_NAME;
-    public static String PLUGIN_VERSION;
-    public static String PLUGIN_NAME_LOWER_CASE;
+    public String PLUGIN_NAME;
+    public String PLUGIN_VERSION;
+    public String PLUGIN_NAME_LOWER_CASE;
     public static final String DEPEND_PLUGIN = "SQLibrary,Vault";
     public static Logger LOG = Logger.getLogger("Minecraft");
 
-    public static PluginMain pm = null;
-    public static ConfigManager cm = null;
-    public static SqlManager sm = null;
-    public static Permission permission = null;
+    private ConfigManager cm = null;
+    private PluginMain pm = null;
+    private SqlManager sm = null;
+    private Permission permission = null;
 
     public PluginMain() {
         PLUGIN_NAME = getDescription().getName();
@@ -39,23 +42,23 @@ public class PluginMain extends JavaPlugin {
     public void onEnable() {
         super.onEnable();
         pm = this;
-        cm = new ConfigManager();
+        cm = new ConfigManager(pm);
         getServer().getConsoleSender().sendMessage(StrUtil.messageFormat(PluginCfg.PLUGIN_PREFIX + "==============================="));
         getServer().getConsoleSender().sendMessage(StrUtil.messageFormat(PluginCfg.PLUGIN_PREFIX));
-        getServer().getConsoleSender().sendMessage(StrUtil.messageFormat(PluginCfg.PLUGIN_PREFIX + "    " + PluginMain.PLUGIN_NAME + " v" + PluginMain.PLUGIN_VERSION));
+        getServer().getConsoleSender().sendMessage(StrUtil.messageFormat(PluginCfg.PLUGIN_PREFIX + "    " + PLUGIN_NAME + " v" + PLUGIN_VERSION));
         getServer().getConsoleSender().sendMessage(StrUtil.messageFormat(PluginCfg.PLUGIN_PREFIX + "    author：GeekFrog QQ：324747460"));
         getServer().getConsoleSender().sendMessage(StrUtil.messageFormat(PluginCfg.PLUGIN_PREFIX + "    https://github.com/geekfrog/PermissionsTime/ "));
         getServer().getConsoleSender().sendMessage(StrUtil.messageFormat(PluginCfg.PLUGIN_PREFIX));
         getServer().getConsoleSender().sendMessage(StrUtil.messageFormat(PluginCfg.PLUGIN_PREFIX + "==============================="));
         if (PluginCfg.IS_METRICS) {
             try {
-                Metrics metrics = new Metrics(this);
+                Metrics metrics = new Metrics(pm);
                 metrics.start();
             } catch (Exception e) {
                 e.printStackTrace();
             }
         }
-        getServer().getScheduler().runTask(this, new Runnable() {
+        getServer().getScheduler().runTask(pm, new Runnable() {
             public void run() {
                 if (!checkPluginDepends()) {
                     getServer().getPluginManager().disablePlugin(pm);
@@ -67,16 +70,12 @@ public class PluginMain extends JavaPlugin {
         });
     }
 
-    public static PluginMain getInstance() {
-        return pm;
-    }
-
     /**
      * 注册监听器 <br/>
      * 这里可以注册多个
      */
     private void registerListeners() {
-        this.getServer().getPluginManager().registerEvents(new TheListener(), this);
+        pm.getServer().getPluginManager().registerEvents(new TheListener(pm), pm);
     }
 
     /**
@@ -84,13 +83,17 @@ public class PluginMain extends JavaPlugin {
      * 这里可以注册多个，一般注册一个就够用
      */
     private void registerCommands() {
-        this.getCommand(PLUGIN_NAME_LOWER_CASE).setExecutor(new MainCommand());
+        pm.getCommand(PLUGIN_NAME_LOWER_CASE).setExecutor(new MainCommand(pm));
     }
 
     public ConfigManager getConfigManager() {
         return cm;
     }
 
+    public SqlManager getSqlManager() {
+        return sm;
+    }
+
     private boolean checkPluginDepends() {
         boolean needDepend = false;
         for (String name : DEPEND_PLUGIN.split(",")) {
@@ -99,12 +102,12 @@ public class PluginMain extends JavaPlugin {
                 needDepend = true;
             }
         }
-        if (!setupPermissions()) {
-            getServer().getConsoleSender().sendMessage(StrUtil.messageFormat(PluginCfg.PLUGIN_PREFIX + "Cann't hook vault permission"));
+        if (!needDepend && !setupPermissions()) {
+            getServer().getConsoleSender().sendMessage(StrUtil.messageFormat(PluginCfg.PLUGIN_PREFIX + "Cann''t hook vault permission"));
             needDepend = true;
         }
-        if (!setupDatabase()) {
-            getServer().getConsoleSender().sendMessage(StrUtil.messageFormat(PluginCfg.PLUGIN_PREFIX + "Cann't setup database"));
+        if (!needDepend && !setupDatabase()) {
+            getServer().getConsoleSender().sendMessage(StrUtil.messageFormat(PluginCfg.PLUGIN_PREFIX + "Cann''t setup database"));
             needDepend = true;
         }
         if (needDepend) {
@@ -116,9 +119,12 @@ public class PluginMain extends JavaPlugin {
     @Override
     public void onDisable() {
         super.onDisable();
-        getServer().getServicesManager().unregisterAll(this);
-        Bukkit.getScheduler().cancelTasks(this);
-        SqlManager.getDb().close();
+        getServer().getServicesManager().unregisterAll(pm);
+        Bukkit.getScheduler().cancelTasks(pm);
+        try {
+            sm.getDb().close();
+        } catch (Exception e) {
+        }
     }
 
     private boolean setupPermissions() {
@@ -130,7 +136,21 @@ public class PluginMain extends JavaPlugin {
     }
 
     private boolean setupDatabase() {
-        sm = SqlManager.getInstance();
+        sm = new SqlManager(pm);
         return sm.updateDatabase();
     }
+
+    public UUID getPlayerUUIDByName(String name) {
+        for (Player p : getServer().getOnlinePlayers()) {
+            if (p.getName().equals(name)) {
+                return p.getUniqueId();
+            }
+        }
+        for (OfflinePlayer p : getServer().getOfflinePlayers()) {
+            if (p.getName().equals(name)) {
+                return p.getUniqueId();
+            }
+        }
+        return null;
+    }
 }
diff --git a/src/main/gg/frog/mc/permissionstime/command/GiveCmd.java b/src/main/gg/frog/mc/permissionstime/command/GiveCmd.java
index a1a220d..473e5ed 100644
--- a/src/main/gg/frog/mc/permissionstime/command/GiveCmd.java
+++ b/src/main/gg/frog/mc/permissionstime/command/GiveCmd.java
@@ -9,14 +9,19 @@ import gg.frog.mc.permissionstime.config.PackagesCfg;
 import gg.frog.mc.permissionstime.config.PluginCfg;
 import gg.frog.mc.permissionstime.database.SqlManager;
 import gg.frog.mc.permissionstime.model.cfg.PermissionPackageBean;
-import gg.frog.mc.permissionstime.utils.PluginUtil;
 import gg.frog.mc.permissionstime.utils.StrUtil;
 
 public class GiveCmd {
 
-    private static SqlManager sm = PluginMain.sm;
+    private PluginMain pm;
+    private SqlManager sm;
 
-    public static boolean onCommand(CommandSender sender, boolean isPlayer, String[] args) {
+    public GiveCmd(PluginMain pm) {
+        this.pm = pm;
+        this.sm = pm.getSqlManager();
+    }
+
+    public boolean onCommand(CommandSender sender, boolean isPlayer, String[] args) {
         if (args.length == 4) {
             String playerName = args[1];
             String packageName = args[2];
@@ -34,21 +39,21 @@ public class GiveCmd {
             }
             PermissionPackageBean pack = PackagesCfg.PACKAGES.get(packageName);
             if (pack != null) {
-                UUID uuid = PluginUtil.getPlayerUUIDByName(playerName);
+                UUID uuid = pm.getPlayerUUIDByName(playerName);
                 if (uuid != null) {
                     if (PluginCfg.IS_DEBUG) {
                         sender.sendMessage(StrUtil.messageFormat(PluginCfg.PLUGIN_PREFIX + uuid.toString() + "\n" + pack.toString() + "\n" + time + "天"));
                     }
                     if (sm.giveTime(uuid.toString(), packageName, days)) {
-                        sender.sendMessage(StrUtil.messageFormat(PluginCfg.PLUGIN_PREFIX + "给予玩家{0} {1}天的{2}", playerName, time, pack.getDisplayName()));
+                        sender.sendMessage(StrUtil.messageFormat(PluginCfg.PLUGIN_PREFIX + "给予玩家 {0} {1}天的 {2}", playerName, time, pack.getDisplayName()));
                     } else {
-                        sender.sendMessage(StrUtil.messageFormat(PluginCfg.PLUGIN_PREFIX + "未给予玩家{0} {1}天的{2}", playerName, time, pack.getDisplayName()));
+                        sender.sendMessage(StrUtil.messageFormat(PluginCfg.PLUGIN_PREFIX + "未给予玩家 {0} {1}天的 {2}", playerName, time, pack.getDisplayName()));
                     }
                 } else {
-                    sender.sendMessage(StrUtil.messageFormat(PluginCfg.PLUGIN_PREFIX + "找不到名为'{0}'的玩家", playerName));
+                    sender.sendMessage(StrUtil.messageFormat(PluginCfg.PLUGIN_PREFIX + "找不到名为''{0}''的玩家", playerName));
                 }
             } else {
-                sender.sendMessage(StrUtil.messageFormat(PluginCfg.PLUGIN_PREFIX + "找不到名为'{0}'的权限包", packageName));
+                sender.sendMessage(StrUtil.messageFormat(PluginCfg.PLUGIN_PREFIX + "找不到名为''{0}''的权限包", packageName));
             }
         } else {
             sender.sendMessage(StrUtil.messageFormat(PluginCfg.PLUGIN_PREFIX + "参数不正确"));
diff --git a/src/main/gg/frog/mc/permissionstime/command/MainCommand.java b/src/main/gg/frog/mc/permissionstime/command/MainCommand.java
index 0728b9e..a5cfa1d 100644
--- a/src/main/gg/frog/mc/permissionstime/command/MainCommand.java
+++ b/src/main/gg/frog/mc/permissionstime/command/MainCommand.java
@@ -13,12 +13,21 @@ import gg.frog.mc.permissionstime.utils.StrUtil;
 
 public class MainCommand implements CommandExecutor {
 
-    private PluginMain pm = PluginMain.getInstance();
-    private SqlManager sm = PluginMain.sm;
+    private PluginMain pm;
+    private SqlManager sm;
+    private GiveCmd giveCmd;
+    private PackagesCmd packagesCmd;
+
+    public MainCommand(PluginMain pm) {
+        this.pm = pm;
+        this.sm = pm.getSqlManager();
+        giveCmd = new GiveCmd(pm);
+        packagesCmd = new PackagesCmd(pm);
+    }
 
     @Override
     public boolean onCommand(CommandSender sender, Command command, String commandLabel, String[] args) {
-        if (commandLabel.equalsIgnoreCase(PluginMain.PLUGIN_NAME_LOWER_CASE)) {
+        if (commandLabel.equalsIgnoreCase(pm.PLUGIN_NAME_LOWER_CASE)) {
             boolean isPlayer = false;
             if (sender instanceof Player) {
                 isPlayer = true;
@@ -50,23 +59,23 @@ public class MainCommand implements CommandExecutor {
                     return true;
                 } else if (args[0].equalsIgnoreCase("me")) {
                     if (hasPermission(sender, isPlayer, "permissionstime.me")) {
-                        return GiveCmd.onCommand(sender, isPlayer, args);
+                        return giveCmd.onCommand(sender, isPlayer, args);
                     }
                 } else if (args[0].equalsIgnoreCase("give")) {
                     if (hasPermission(sender, isPlayer, "permissionstime.give")) {
-                        return GiveCmd.onCommand(sender, isPlayer, args);
+                        return giveCmd.onCommand(sender, isPlayer, args);
                     }
                 } else if (args[0].equalsIgnoreCase("set")) {
                     if (hasPermission(sender, isPlayer, "permissionstime.set")) {
-                        return GiveCmd.onCommand(sender, isPlayer, args);
+                        return giveCmd.onCommand(sender, isPlayer, args);
                     }
                 } else if (args[0].equalsIgnoreCase("remove")) {
                     if (hasPermission(sender, isPlayer, "permissionstime.remove")) {
-                        return GiveCmd.onCommand(sender, isPlayer, args);
+                        return giveCmd.onCommand(sender, isPlayer, args);
                     }
                 } else if (args[0].equalsIgnoreCase("packages")) {
                     if (hasPermission(sender, isPlayer, "permissionstime.packages")) {
-                        return PackagesCmd.onCommand(sender, isPlayer, args);
+                        return packagesCmd.onCommand(sender, isPlayer, args);
                     }
                 } else {
                     getHelp(sender, isPlayer);
@@ -78,21 +87,21 @@ public class MainCommand implements CommandExecutor {
     }
 
     private void getHelp(CommandSender sender, boolean isPlayer) {
-        sender.sendMessage(StrUtil.messageFormat(PluginCfg.PLUGIN_PREFIX + "&a===== " + PluginMain.PLUGIN_NAME + " Version:" + PluginMain.PLUGIN_VERSION + " ====="));
-        if (!isPlayer || sender.isOp() || sender.hasPermission(PluginMain.PLUGIN_NAME_LOWER_CASE + ".reload")) {
-            sender.sendMessage(StrUtil.messageFormat("/" + PluginMain.PLUGIN_NAME_LOWER_CASE + " reload \n\t-Reloads the config file."));
+        sender.sendMessage(StrUtil.messageFormat(PluginCfg.PLUGIN_PREFIX + "&a===== " + pm.PLUGIN_NAME + " Version:" + pm.PLUGIN_VERSION + " ====="));
+        if (!isPlayer || sender.isOp() || sender.hasPermission(pm.PLUGIN_NAME_LOWER_CASE + ".reload")) {
+            sender.sendMessage(StrUtil.messageFormat("/" + pm.PLUGIN_NAME_LOWER_CASE + " reload \n  -Reloads the config file."));
         }
-        if (!isPlayer || sender.isOp() || sender.hasPermission(PluginMain.PLUGIN_NAME_LOWER_CASE + ".give")) {
-            sender.sendMessage(StrUtil.messageFormat("/" + PluginMain.PLUGIN_NAME_LOWER_CASE + " give <playerName> <packageName> <time> \n\t- Give player package <time>day."));
+        if (!isPlayer || sender.isOp() || sender.hasPermission(pm.PLUGIN_NAME_LOWER_CASE + ".give")) {
+            sender.sendMessage(StrUtil.messageFormat("/" + pm.PLUGIN_NAME_LOWER_CASE + " give <playerName> <packageName> <time> \n  - Give player package <time>day."));
         }
-        if (!isPlayer || sender.isOp() || sender.hasPermission(PluginMain.PLUGIN_NAME_LOWER_CASE + ".set")) {
-            sender.sendMessage(StrUtil.messageFormat("/" + PluginMain.PLUGIN_NAME_LOWER_CASE + " set <playerName> <packageName> <time> \n\t- Set player package <time>day."));
+        if (!isPlayer || sender.isOp() || sender.hasPermission(pm.PLUGIN_NAME_LOWER_CASE + ".set")) {
+            sender.sendMessage(StrUtil.messageFormat("/" + pm.PLUGIN_NAME_LOWER_CASE + " set <playerName> <packageName> <time> \n  - Set player package <time>day."));
         }
-        if (!isPlayer || sender.isOp() || sender.hasPermission(PluginMain.PLUGIN_NAME_LOWER_CASE + ".remove")) {
-            sender.sendMessage(StrUtil.messageFormat("/" + PluginMain.PLUGIN_NAME_LOWER_CASE + " remove <playerName> <packageName> \n\t- Remove player package."));
+        if (!isPlayer || sender.isOp() || sender.hasPermission(pm.PLUGIN_NAME_LOWER_CASE + ".remove")) {
+            sender.sendMessage(StrUtil.messageFormat("/" + pm.PLUGIN_NAME_LOWER_CASE + " remove <playerName> <packageName> \n  - Remove player package."));
         }
-        if (!isPlayer || sender.isOp() || sender.hasPermission(PluginMain.PLUGIN_NAME_LOWER_CASE + ".packages")) {
-            sender.sendMessage(StrUtil.messageFormat("/" + PluginMain.PLUGIN_NAME_LOWER_CASE + " packages [packageName] \n\t- View packages."));
+        if (!isPlayer || sender.isOp() || sender.hasPermission(pm.PLUGIN_NAME_LOWER_CASE + ".packages")) {
+            sender.sendMessage(StrUtil.messageFormat("/" + pm.PLUGIN_NAME_LOWER_CASE + " packages [packageName] \n  - View packages."));
         }
         sender.sendMessage(StrUtil.messageFormat(PluginCfg.PLUGIN_PREFIX));
     }
diff --git a/src/main/gg/frog/mc/permissionstime/command/PackagesCmd.java b/src/main/gg/frog/mc/permissionstime/command/PackagesCmd.java
index c0a351c..bb36332 100644
--- a/src/main/gg/frog/mc/permissionstime/command/PackagesCmd.java
+++ b/src/main/gg/frog/mc/permissionstime/command/PackagesCmd.java
@@ -4,6 +4,7 @@ import java.util.Map.Entry;
 
 import org.bukkit.command.CommandSender;
 
+import gg.frog.mc.permissionstime.PluginMain;
 import gg.frog.mc.permissionstime.config.PackagesCfg;
 import gg.frog.mc.permissionstime.config.PluginCfg;
 import gg.frog.mc.permissionstime.model.cfg.PermissionPackageBean;
@@ -11,7 +12,13 @@ import gg.frog.mc.permissionstime.utils.StrUtil;
 
 public class PackagesCmd {
 
-    public static boolean onCommand(CommandSender sender, boolean isPlayer, String[] args) {
+    private PluginMain pm;
+
+    public PackagesCmd(PluginMain pm) {
+        this.pm = pm;
+    }
+
+    public boolean onCommand(CommandSender sender, boolean isPlayer, String[] args) {
         if (args.length == 1) {
             sender.sendMessage(StrUtil.messageFormat(PluginCfg.PLUGIN_PREFIX + "共有{0}种权限包", PackagesCfg.PACKAGES.size()));
             for (Entry<String, PermissionPackageBean> e : PackagesCfg.PACKAGES.entrySet()) {
@@ -24,7 +31,7 @@ public class PackagesCmd {
                 PermissionPackageBean p = PackagesCfg.PACKAGES.get(packageName);
                 sender.sendMessage(StrUtil.messageFormat(PluginCfg.PLUGIN_PREFIX + "PackgeName: {0}, DisplayName: {1}\n" + "Permissions: {2}\n" + "Groups: {3}\n" + "Prefixs: {4}\n" + "Suffixs: {5}\n" + "", packageName, p.getDisplayName(), p.getPermissions(), p.getGroups(), p.getPrefixs(), p.getSuffixs()));
             } else {
-                sender.sendMessage(StrUtil.messageFormat(PluginCfg.PLUGIN_PREFIX + "找不到名为'{0}'的权限包",packageName));
+                sender.sendMessage(StrUtil.messageFormat(PluginCfg.PLUGIN_PREFIX + "找不到名为''{0}''的权限包", packageName));
             }
         }
         return true;
diff --git a/src/main/gg/frog/mc/permissionstime/config/ConfigManager.java b/src/main/gg/frog/mc/permissionstime/config/ConfigManager.java
index 8496f91..8db200d 100644
--- a/src/main/gg/frog/mc/permissionstime/config/ConfigManager.java
+++ b/src/main/gg/frog/mc/permissionstime/config/ConfigManager.java
@@ -1,9 +1,7 @@
 package gg.frog.mc.permissionstime.config;
 
 import java.io.File;
-import java.io.FileNotFoundException;
 import java.io.FileOutputStream;
-import java.io.IOException;
 import java.io.InputStream;
 import java.io.OutputStream;
 import java.util.LinkedHashMap;
@@ -24,25 +22,26 @@ import gg.frog.mc.permissionstime.utils.config.PluginConfig;
  *
  */
 public class ConfigManager {
-    
-    private PluginMain pm = PluginMain.getInstance();
+
+    private PluginMain pm;
     private Map<String, PluginConfig> cfgMap = new LinkedHashMap<>();
 
-    public ConfigManager() {
+    public ConfigManager(PluginMain pm) {
+        this.pm = pm;
         File langFolder = new File(pm.getDataFolder(), "lang/");
         if (!langFolder.exists()) {
             copyLangFilesFromJar();
         }
         // 添加到配置列表
-        cfgMap.put("plugin", new PluginCfg());
-        cfgMap.put("lang", new LangCfg("lang/" + PluginCfg.LANG + ".yml"));
-        cfgMap.put("packages", new PackagesCfg("packages.yml"));
+        cfgMap.put("plugin", new PluginCfg(pm));
+        cfgMap.put("lang", new LangCfg("lang/" + PluginCfg.LANG + ".yml", pm));
+        cfgMap.put("packages", new PackagesCfg("packages.yml", pm));
     }
 
     public void reloadConfig() {
         for (Entry<String, PluginConfig> entry : cfgMap.entrySet()) {
             if ("lang".equals(entry.getKey())) {
-                entry.setValue(new LangCfg("lang/" + PluginCfg.LANG + ".yml"));
+                entry.setValue(new LangCfg("lang/" + PluginCfg.LANG + ".yml", pm));
             }
             entry.getValue().reloadConfig();
         }
@@ -57,7 +56,7 @@ public class ConfigManager {
 
             @Override
             public void process(String fileName, InputStream is) {
-                File f = new File(pm.getDataFolder(),fileName);
+                File f = new File(pm.getDataFolder(), fileName);
                 File parentFolder = f.getParentFile();
                 if (!parentFolder.exists()) {
                     parentFolder.mkdirs();
diff --git a/src/main/gg/frog/mc/permissionstime/config/LangCfg.java b/src/main/gg/frog/mc/permissionstime/config/LangCfg.java
index 44684c2..1e156ce 100644
--- a/src/main/gg/frog/mc/permissionstime/config/LangCfg.java
+++ b/src/main/gg/frog/mc/permissionstime/config/LangCfg.java
@@ -1,5 +1,6 @@
 package gg.frog.mc.permissionstime.config;
 
+import gg.frog.mc.permissionstime.PluginMain;
 import gg.frog.mc.permissionstime.utils.config.PluginConfig;
 
 /**
@@ -13,18 +14,17 @@ public class LangCfg extends PluginConfig {
     public static String NO_PERMISSION = null;
     public static String CONFIG_RELOADED = null;
 
-    public LangCfg(String fileName) {
-        super(fileName);
+    public LangCfg(String fileName, PluginMain pm) {
+        super(fileName, pm);
     }
 
     @Override
-    protected void init() {
-    }
+    protected void init() {}
 
     @Override
     protected void loadToDo() {
-        NO_PERMISSION = setGetDefault("nopermission","&4你没有权限这么做");
-        CONFIG_RELOADED = setGetDefault("configReloaded","&a配置重载完成");
+        NO_PERMISSION = setGetDefault("nopermission", "&4你没有权限这么做");
+        CONFIG_RELOADED = setGetDefault("configReloaded", "&a配置重载完成");
     }
-    
+
 }
diff --git a/src/main/gg/frog/mc/permissionstime/config/PackagesCfg.java b/src/main/gg/frog/mc/permissionstime/config/PackagesCfg.java
index 35d87e9..5932379 100644
--- a/src/main/gg/frog/mc/permissionstime/config/PackagesCfg.java
+++ b/src/main/gg/frog/mc/permissionstime/config/PackagesCfg.java
@@ -4,6 +4,7 @@ import java.util.HashMap;
 import java.util.Map;
 import java.util.Map.Entry;
 
+import gg.frog.mc.permissionstime.PluginMain;
 import gg.frog.mc.permissionstime.model.cfg.PermissionPackageBean;
 import gg.frog.mc.permissionstime.utils.config.PluginConfig;
 
@@ -13,8 +14,8 @@ public class PackagesCfg extends PluginConfig {
     public static String DEFAULT_GROUP = null;
     public static Map<String, PermissionPackageBean> PACKAGES = new HashMap<>();
 
-    public PackagesCfg(String fileName) {
-        super(fileName);
+    public PackagesCfg(String fileName, PluginMain pm) {
+        super(fileName, pm);
     }
 
     @Override
diff --git a/src/main/gg/frog/mc/permissionstime/config/PluginCfg.java b/src/main/gg/frog/mc/permissionstime/config/PluginCfg.java
index 1819e55..bcde987 100644
--- a/src/main/gg/frog/mc/permissionstime/config/PluginCfg.java
+++ b/src/main/gg/frog/mc/permissionstime/config/PluginCfg.java
@@ -11,7 +11,7 @@ import gg.frog.mc.permissionstime.utils.config.PluginConfig;
  */
 public class PluginCfg extends PluginConfig {
 
-    public static String PLUGIN_PREFIX ;
+    public static String PLUGIN_PREFIX;
     public static boolean IS_METRICS = true;
     public static boolean IS_DEBUG = false;
     public static String LANG;
@@ -23,8 +23,8 @@ public class PluginCfg extends PluginConfig {
     public static String SQL_PASSWORD;
     public static String SQL_TABLE_PREFIX;
 
-    public PluginCfg() {
-        super();
+    public PluginCfg(PluginMain pm) {
+        super(pm);
     }
 
     @Override
@@ -43,7 +43,7 @@ public class PluginCfg extends PluginConfig {
 
     @Override
     protected void loadToDo() {
-        PLUGIN_PREFIX = setGetDefault("pluginPrefix", "&b[" + PluginMain.PLUGIN_NAME + "]&r");
+        PLUGIN_PREFIX = setGetDefault("pluginPrefix", "&b[" + pm.PLUGIN_NAME + "]&r");
         IS_DEBUG = setGetDefault("debug", false);
         IS_METRICS = setGetDefault("metrics", true);
         LANG = setGetDefault("lang", "zh-cn");
diff --git a/src/main/gg/frog/mc/permissionstime/database/SqlManager.java b/src/main/gg/frog/mc/permissionstime/database/SqlManager.java
index d420407..f87aa1e 100644
--- a/src/main/gg/frog/mc/permissionstime/database/SqlManager.java
+++ b/src/main/gg/frog/mc/permissionstime/database/SqlManager.java
@@ -10,18 +10,15 @@ import lib.PatPeter.SQLibrary.SQLite;
 
 public class SqlManager {
 
-    private PluginMain pm = PluginMain.getInstance();
-    private static SqlManager sm = new SqlManager();
-    private static Database db = null;
-    private static IPlayerDataService pds = null;
+    private PluginMain pm;
+    private Database db = null;
+    private IPlayerDataService pds = null;
 
-    private SqlManager() {}
-
-    public static SqlManager getInstance() {
-        return sm;
+    public SqlManager(PluginMain pm) {
+        this.pm = pm;
     }
 
-    public static Database getDb() {
+    public Database getDb() {
         return db;
     }
 
@@ -30,10 +27,10 @@ public class SqlManager {
             db.close();
         }
         if (PluginCfg.USE_MYSQL) {
-            db = new MySQL(PluginMain.LOG, "[" + PluginMain.PLUGIN_NAME + "] ", PluginCfg.SQL_HOSTNAME, PluginCfg.SQL_PORT, PluginCfg.SQL_DATABASE, PluginCfg.SQL_USERNAME, PluginCfg.SQL_PASSWORD);
+            db = new MySQL(PluginMain.LOG, "[" + pm.PLUGIN_NAME + "] ", PluginCfg.SQL_HOSTNAME, PluginCfg.SQL_PORT, PluginCfg.SQL_DATABASE, PluginCfg.SQL_USERNAME, PluginCfg.SQL_PASSWORD);
         } else {
-            db = new SQLite(PluginMain.LOG, "[" + PluginMain.PLUGIN_NAME + "] ", PluginMain.pm.getDataFolder().getAbsolutePath(), "playerData", ".db");
-            pds = new SqlitePlayerDataService();
+            db = new SQLite(PluginMain.LOG, "[" + pm.PLUGIN_NAME + "] ", pm.getDataFolder().getAbsolutePath(), "playerData", ".db");
+            pds = new SqlitePlayerDataService(pm, this);
         }
         db.open();
         try {
diff --git a/src/main/gg/frog/mc/permissionstime/database/impl/SqlitePlayerDataService.java b/src/main/gg/frog/mc/permissionstime/database/impl/SqlitePlayerDataService.java
index 027075d..69e5a36 100644
--- a/src/main/gg/frog/mc/permissionstime/database/impl/SqlitePlayerDataService.java
+++ b/src/main/gg/frog/mc/permissionstime/database/impl/SqlitePlayerDataService.java
@@ -8,13 +8,19 @@ import java.util.List;
 import gg.frog.mc.permissionstime.PluginMain;
 import gg.frog.mc.permissionstime.config.PluginCfg;
 import gg.frog.mc.permissionstime.database.IPlayerDataService;
+import gg.frog.mc.permissionstime.database.SqlManager;
 import gg.frog.mc.permissionstime.model.db.PlayerDataBean;
 import gg.frog.mc.permissionstime.utils.StrUtil;
 import gg.frog.mc.permissionstime.utils.database.DatabaseUtil;
 
 public class SqlitePlayerDataService extends DatabaseUtil implements IPlayerDataService {
 
-    private PluginMain pm = PluginMain.getInstance();
+    private PluginMain pm;
+
+    public SqlitePlayerDataService(PluginMain pm, SqlManager sm) {
+        super(sm);
+        this.pm = pm;
+    }
 
     @Override
     public boolean tableExist() throws Exception {
@@ -66,8 +72,8 @@ public class SqlitePlayerDataService extends DatabaseUtil implements IPlayerData
     public boolean addTime(String uuid, String packageName, int days) throws Exception {
         PlayerDataBean pdb = queryPlayerData(uuid, packageName);
         long now = new Date().getTime();
-        long addTime = days * 24 * 60 * 60 * 1000;
-        long expire = 0;
+        long addTime = days * 24 * 60 * 60 * 1000L;
+        long expire = 0L;
         if (pdb == null) {
             expire = now + addTime;
             pdb = new PlayerDataBean(null, uuid, packageName, expire);
diff --git a/src/main/gg/frog/mc/permissionstime/listener/TheListener.java b/src/main/gg/frog/mc/permissionstime/listener/TheListener.java
index 66455e5..c398367 100644
--- a/src/main/gg/frog/mc/permissionstime/listener/TheListener.java
+++ b/src/main/gg/frog/mc/permissionstime/listener/TheListener.java
@@ -9,8 +9,12 @@ import org.bukkit.event.player.PlayerQuitEvent;
 import gg.frog.mc.permissionstime.PluginMain;
 
 public class TheListener implements Listener {
-    
-    private PluginMain pm = PluginMain.getInstance();
+
+    private PluginMain pm;
+
+    public TheListener(PluginMain pm) {
+        this.pm = pm;
+    }
 
     /**
      * 一个监听器例子
diff --git a/src/main/gg/frog/mc/permissionstime/utils/PluginUtil.java b/src/main/gg/frog/mc/permissionstime/utils/PluginUtil.java
deleted file mode 100644
index 1c52490..0000000
--- a/src/main/gg/frog/mc/permissionstime/utils/PluginUtil.java
+++ /dev/null
@@ -1,27 +0,0 @@
-package gg.frog.mc.permissionstime.utils;
-
-import java.util.UUID;
-
-import org.bukkit.OfflinePlayer;
-import org.bukkit.entity.Player;
-
-import gg.frog.mc.permissionstime.PluginMain;
-
-public class PluginUtil {
-
-    private static PluginMain pm = PluginMain.getInstance();
-
-    public static UUID getPlayerUUIDByName(String name) {
-        for (Player p : pm.getServer().getOnlinePlayers()) {
-            if (p.getName().equals(name)) {
-                return p.getUniqueId();
-            }
-        }
-        for (OfflinePlayer p : pm.getServer().getOfflinePlayers()) {
-            if (p.getName().equals(name)) {
-                return p.getUniqueId();
-            }
-        }
-        return null;
-    }
-}
diff --git a/src/main/gg/frog/mc/permissionstime/utils/config/PluginConfig.java b/src/main/gg/frog/mc/permissionstime/utils/config/PluginConfig.java
index 1993853..b6984c5 100644
--- a/src/main/gg/frog/mc/permissionstime/utils/config/PluginConfig.java
+++ b/src/main/gg/frog/mc/permissionstime/utils/config/PluginConfig.java
@@ -25,22 +25,24 @@ import gg.frog.mc.permissionstime.PluginMain;
  */
 public abstract class PluginConfig {
 
-    private PluginMain pm = PluginMain.getInstance();
+    protected PluginMain pm;
     private FileConfiguration config = null;
     private File folder = null;
     private String fileName = null;
     private File configFile = null;
 
-
-    protected PluginConfig() {
+    protected PluginConfig(PluginMain pm) {
+        this.pm = pm;
         initConfig(pm.getDataFolder(), "config.yml");
     }
 
-    protected PluginConfig(String fileName) {
+    protected PluginConfig(String fileName, PluginMain pm) {
+        this.pm = pm;
         initConfig(pm.getDataFolder(), fileName);
     }
 
-    protected PluginConfig(File folder, String fileName) {
+    protected PluginConfig(File folder, String fileName, PluginMain pm) {
+        this.pm = pm;
         initConfig(folder, fileName);
     }
 
@@ -128,7 +130,7 @@ public abstract class PluginConfig {
         config = YamlConfiguration.loadConfiguration(configFile);
 
         if (useRes) {
-            final InputStream defConfigStream = PluginMain.getInstance().getResource(fileName);
+            final InputStream defConfigStream = pm.getResource(fileName);
             if (defConfigStream == null) {
                 return;
             }
diff --git a/src/main/gg/frog/mc/permissionstime/utils/database/DatabaseUtil.java b/src/main/gg/frog/mc/permissionstime/utils/database/DatabaseUtil.java
index 91ed9e1..9d311c3 100644
--- a/src/main/gg/frog/mc/permissionstime/utils/database/DatabaseUtil.java
+++ b/src/main/gg/frog/mc/permissionstime/utils/database/DatabaseUtil.java
@@ -5,8 +5,14 @@ import lib.PatPeter.SQLibrary.Database;
 
 public abstract class DatabaseUtil {
 
+    private SqlManager sm;
+
+    public DatabaseUtil(SqlManager sm) {
+        this.sm = sm;
+    }
+
     protected Database getDB() {
-        Database db = SqlManager.getDb();
+        Database db = sm.getDb();
         for (int i = 0; i < 3; i++) {
             if (!db.isOpen()) {
                 if (db.open()) {