diff --git a/src/main/java/cn/citycraft/Yum/Yum.java b/src/main/java/cn/citycraft/Yum/Yum.java
index d8d0abd..a6f86b8 100644
--- a/src/main/java/cn/citycraft/Yum/Yum.java
+++ b/src/main/java/cn/citycraft/Yum/Yum.java
@@ -24,20 +24,21 @@ public class Yum extends JavaPlugin {
 
 	@Override
 	public void onEnable() {
+		CommandHandler cmdhandler = new CommandHandler(this);
+		this.getCommand("yum").setExecutor(cmdhandler);
+		this.getCommand("yum").setTabCompleter(cmdhandler);
 		plugman = new PluginsManager(this);
 		download = new DownloadManager(this);
 		repo = new RepositoryManager(this);
 		config = new FileConfig(this, "config.yml");
 		repo.jsonToCache(config.getString("cache"));
-		CommandHandler cmdhandler = new CommandHandler(this);
-		this.getCommand("yum").setExecutor(cmdhandler);
-		this.getCommand("yum").setTabCompleter(cmdhandler);
-		this.getPluginLoader();
 	}
 
 	@Override
 	public void onDisable() {
-		config.set("cache", repo.cacheToJson());
+		if (config != null)
+			config.set("cache", repo.cacheToJson());
+		config.save();
 	}
 
 }
diff --git a/src/main/java/cn/citycraft/Yum/commands/CommandHandler.java b/src/main/java/cn/citycraft/Yum/commands/CommandHandler.java
index fb2c1c9..8ac332d 100644
--- a/src/main/java/cn/citycraft/Yum/commands/CommandHandler.java
+++ b/src/main/java/cn/citycraft/Yum/commands/CommandHandler.java
@@ -4,6 +4,7 @@
 package cn.citycraft.Yum.commands;
 
 import java.util.ArrayList;
+import java.util.Arrays;
 import java.util.Collections;
 import java.util.List;
 
@@ -34,7 +35,7 @@ public class CommandHandler implements CommandExecutor, TabCompleter {
 	 */
 	public static String[] moveStrings(String[] args, int start) {
 		String[] ret = new String[args.length - start];
-		System.arraycopy(args, args.length - start, ret, 0, ret.length);
+		System.arraycopy(args, start, ret, 0, ret.length);
 		return ret;
 	}
 
@@ -128,7 +129,17 @@ public class CommandHandler implements CommandExecutor, TabCompleter {
 			}
 			if (args.length == 2) {
 				String partialPlugin = args[1];
-				List<String> plugins = main.plugman.getPluginNames(false);
+				List<String> plugins = null;
+				if (args[0].equalsIgnoreCase("install"))
+					plugins = main.repo.getAllPluginName();
+				else if (args[0].equalsIgnoreCase("repo"))
+					plugins = Arrays.asList(new String[] {
+							"add",
+							"list",
+							"clean"
+					});
+				else
+					plugins = main.plugman.getPluginNames(false);
 				StringUtil.copyPartialMatches(partialPlugin, plugins, completions);
 			}
 			Collections.sort(completions);
diff --git a/src/main/java/cn/citycraft/Yum/commands/CommandLoad.java b/src/main/java/cn/citycraft/Yum/commands/CommandLoad.java
index a37aeaf..1ecc190 100644
--- a/src/main/java/cn/citycraft/Yum/commands/CommandLoad.java
+++ b/src/main/java/cn/citycraft/Yum/commands/CommandLoad.java
@@ -30,10 +30,10 @@ public class CommandLoad extends BaseCommand {
 	public void execute(CommandSender sender, String label, String[] args) throws CommandException {
 		String pluginname = args[0];
 		Plugin plugin = Bukkit.getServer().getPluginManager().getPlugin(pluginname);
-		if (plugin != null) {
+		if (plugin == null) {
 			main.plugman.load(sender, pluginname);
 		} else {
-			sender.sendMessage("§c插件 " + pluginname + " 不存在或已卸载!");
+			sender.sendMessage("§c错误: 插件 " + pluginname + " 已加载到服务器!");
 		}
 	};
 
diff --git a/src/main/java/cn/citycraft/Yum/commands/CommandRepo.java b/src/main/java/cn/citycraft/Yum/commands/CommandRepo.java
index b469b2a..9122bb6 100644
--- a/src/main/java/cn/citycraft/Yum/commands/CommandRepo.java
+++ b/src/main/java/cn/citycraft/Yum/commands/CommandRepo.java
@@ -34,12 +34,15 @@ public class CommandRepo extends BaseCommand {
 				main.repo.addRepositories(args[1]);
 			}
 			sender.sendMessage("§6仓库: §a插件信息已缓存!");
+			break;
 		case "list":
 			sender.sendMessage("§6仓库: §b缓存的插件信息如下 ");
 			StringUtil.sendStringArray(sender, main.repo.getAllPluginString());
+			break;
 		case "clean":
 			main.repo.clean();
 			sender.sendMessage("§6仓库: §a缓存的插件信息已清理!");
+			break;
 		}
 	};
 
diff --git a/src/main/java/cn/citycraft/Yum/manager/AutoUpdateManager.java b/src/main/java/cn/citycraft/Yum/manager/AutoUpdateManager.java
new file mode 100644
index 0000000..d048504
--- /dev/null
+++ b/src/main/java/cn/citycraft/Yum/manager/AutoUpdateManager.java
@@ -0,0 +1,34 @@
+package cn.citycraft.Yum.manager;
+
+import org.bukkit.Bukkit;
+import org.bukkit.command.CommandSender;
+import org.bukkit.plugin.Plugin;
+
+/**
+ * 自动更新类
+ * 
+ * @author 蒋天蓓
+ *         2015年9月1日上午10:59:47
+ */
+public class AutoUpdateManager {
+	Plugin plugin;
+	DownloadManager download;
+	PluginsManager plugman;
+
+	public AutoUpdateManager(Plugin plugin) {
+		this.plugin = plugin;
+		plugman = new PluginsManager(plugin);
+		download = new DownloadManager(plugin);
+	}
+
+	public boolean run(CommandSender sender) {
+		if (download.run(sender, "下载地址", plugman.getPluginFile(plugin))) {
+			plugman.reload(sender, plugin);
+		}
+		return false;
+	}
+
+	public boolean run() {
+		return run(Bukkit.getConsoleSender());
+	}
+}
diff --git a/src/main/java/cn/citycraft/Yum/manager/DownloadManager.java b/src/main/java/cn/citycraft/Yum/manager/DownloadManager.java
index b9afd69..6e687b9 100644
--- a/src/main/java/cn/citycraft/Yum/manager/DownloadManager.java
+++ b/src/main/java/cn/citycraft/Yum/manager/DownloadManager.java
@@ -1,6 +1,3 @@
-/**
- *
- */
 package cn.citycraft.Yum.manager;
 
 import java.io.BufferedInputStream;
@@ -99,9 +96,8 @@ public class DownloadManager {
 	 * @return 是否成功
 	 */
 	public boolean run(CommandSender sender, String urlstring, File file) {
-		URL url;
 		try {
-			url = new URL(urlstring);
+			URL url = new URL(urlstring);
 			return run(sender, url, file);
 		} catch (MalformedURLException e) {
 			sender.sendMessage("§4错误: §c无法识别的URL地址...");
diff --git a/src/main/java/cn/citycraft/Yum/manager/PluginsManager.java b/src/main/java/cn/citycraft/Yum/manager/PluginsManager.java
index edaaf06..591ccd9 100644
--- a/src/main/java/cn/citycraft/Yum/manager/PluginsManager.java
+++ b/src/main/java/cn/citycraft/Yum/manager/PluginsManager.java
@@ -1,6 +1,3 @@
-/**
- *
- */
 package cn.citycraft.Yum.manager;
 
 import java.io.File;
@@ -30,7 +27,6 @@ import org.bukkit.plugin.PluginManager;
 import org.bukkit.plugin.RegisteredListener;
 import org.bukkit.plugin.UnknownDependencyException;
 
-import cn.citycraft.Yum.Yum;
 import cn.citycraft.Yum.utils.StringUtil;
 
 import com.google.common.base.Joiner;
@@ -41,10 +37,10 @@ import com.google.common.base.Joiner;
  * @author 蒋天蓓 2015年8月21日下午7:03:26
  */
 public class PluginsManager {
-	Yum main;
+	Plugin main;
 
-	public PluginsManager(Yum yum) {
-		this.main = yum;
+	public PluginsManager(Plugin plugin) {
+		this.main = plugin;
 	}
 
 	/**
@@ -272,26 +268,23 @@ public class PluginsManager {
 	 */
 	public boolean load(CommandSender sender, String name) {
 		Plugin target = null;
-
+		String filename = null;
 		if (sender == null) {
 			sender = Bukkit.getConsoleSender();
 		}
-
 		if (!name.endsWith(".jar")) {
-			name = name + ".jar";
+			filename = name + ".jar";
 		}
-
 		File pluginDir = new File("plugins");
 		File updateDir = new File(pluginDir, "update");
-
 		if (!pluginDir.isDirectory()) {
 			sender.sendMessage("§c插件目录不存在或IO错误!");
 			return false;
 		}
 
-		File pluginFile = new File(pluginDir, name);
+		File pluginFile = new File(pluginDir, filename);
 
-		if (!pluginFile.isFile() && !new File(updateDir, name).isFile()) {
+		if (!pluginFile.isFile() && !new File(updateDir, filename).isFile()) {
 			pluginFile = null;
 			for (File file : pluginDir.listFiles()) {
 				if (file.getName().endsWith(".jar")) {
@@ -306,7 +299,7 @@ public class PluginsManager {
 				}
 			}
 			if (pluginFile == null) {
-				sender.sendMessage("§c在插件目录和更新目录均未找到 " + name + " 插件 请确认文件是否存在!");
+				sender.sendMessage("§6载入: §c在插件目录和更新目录均未找到 " + name + " 插件 请确认文件是否存在!");
 				return false;
 			}
 		}
@@ -448,13 +441,12 @@ public class PluginsManager {
 				if (commandMap != null) {
 					for (Iterator<Map.Entry<String, Command>> it = knownCommands.entrySet().iterator(); it.hasNext();) {
 						Map.Entry<String, Command> entry = it.next();
-
 						if ((entry.getValue() instanceof PluginCommand)) {
 							PluginCommand command = (PluginCommand) entry.getValue();
 							if (command.getPlugin() == next) {
 								command.unregister(commandMap);
 								it.remove();
-								sender.sendMessage("§6卸载: §a插件 " + name + " 的 " + command.getDescription() + " 命令已卸载!");
+								sender.sendMessage("§6卸载: §a插件 " + name + " 的 " + command.getName() + " 命令已卸载!");
 							}
 						}
 					}
diff --git a/src/main/java/cn/citycraft/Yum/repository/Plugin.java b/src/main/java/cn/citycraft/Yum/repository/Plugin.java
index c648255..3b4c9ef 100644
--- a/src/main/java/cn/citycraft/Yum/repository/Plugin.java
+++ b/src/main/java/cn/citycraft/Yum/repository/Plugin.java
@@ -12,5 +12,6 @@ package cn.citycraft.Yum.repository;
 public class Plugin {
 	public String groupId;
 	public String artifactId;
+	public String description;
 	public String version;
 }
diff --git a/src/main/java/cn/citycraft/Yum/repository/RepositoryManager.java b/src/main/java/cn/citycraft/Yum/repository/RepositoryManager.java
index b24ef13..7b978b9 100644
--- a/src/main/java/cn/citycraft/Yum/repository/RepositoryManager.java
+++ b/src/main/java/cn/citycraft/Yum/repository/RepositoryManager.java
@@ -25,13 +25,15 @@ import com.google.gson.reflect.TypeToken;
  * @author 蒋天蓓
  */
 public class RepositoryManager {
-	Gson gson = new Gson();
-	HashMap<String, PluginInfo> plugins = new HashMap<String, PluginInfo>();
+	Gson gson;
+	HashMap<String, PluginInfo> plugins;
 
 	Yum main;
 
 	public RepositoryManager(Yum yum) {
 		this.main = yum;
+		gson = new Gson();
+		plugins = new HashMap<String, PluginInfo>();
 	}
 
 	public void clean() {
@@ -52,7 +54,8 @@ public class RepositoryManager {
 	}
 
 	public boolean jsonToCache(String json) {
-		if (json == "") {
+		if (json == null || json == "") {
+			plugins = new HashMap<String, PluginInfo>();
 			return false;
 		}
 		try {
@@ -127,11 +130,19 @@ public class RepositoryManager {
 		return li;
 	}
 
+	public List<String> getAllPluginName() {
+		List<String> li = new ArrayList<String>();
+		for (Entry<String, PluginInfo> plugin : plugins.entrySet()) {
+			li.add(plugin.getValue().plugin.artifactId);
+		}
+		return li;
+	}
+
 	public List<String> getAllPluginString() {
 		List<String> li = new ArrayList<String>();
 		for (Entry<String, PluginInfo> plugin : plugins.entrySet()) {
 			Plugin pl = plugin.getValue().plugin;
-			li.add(String.format("%s %s(%s)", pl.groupId, pl.artifactId, pl.version));
+			li.add(String.format("%s %s(%s) - %s", pl.groupId, pl.artifactId, pl.version, pl.description));
 		}
 		return li;
 	}