diff --git a/pom.xml b/pom.xml
index 8acf37c..53c6f24 100644
--- a/pom.xml
+++ b/pom.xml
@@ -19,7 +19,7 @@
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
         <maven.compiler.encoding>UTF-8</maven.compiler.encoding>
-        <mirai.CoreVersion>0.39.4</mirai.CoreVersion>
+        <mirai.CoreVersion>1.0-RC2-1</mirai.CoreVersion>
         <mirai.JaptVersion>1.1.1</mirai.JaptVersion>
         <kotlin.version>1.3.71</kotlin.version>
         <ktor.version>1.3.2</ktor.version>
diff --git a/src/main/java/net/lamgc/cgj/bot/framework/mirai/MiraiMain.java b/src/main/java/net/lamgc/cgj/bot/framework/mirai/MiraiMain.java
index 97e14fe..b16a694 100644
--- a/src/main/java/net/lamgc/cgj/bot/framework/mirai/MiraiMain.java
+++ b/src/main/java/net/lamgc/cgj/bot/framework/mirai/MiraiMain.java
@@ -9,9 +9,7 @@ import net.mamoe.mirai.BotFactoryJvm;
 import net.mamoe.mirai.event.events.BotMuteEvent;
 import net.mamoe.mirai.event.events.BotUnmuteEvent;
 import net.mamoe.mirai.japt.Events;
-import net.mamoe.mirai.message.ContactMessage;
-import net.mamoe.mirai.message.FriendMessage;
-import net.mamoe.mirai.message.GroupMessage;
+import net.mamoe.mirai.message.*;
 import net.mamoe.mirai.utils.BotConfiguration;
 import org.apache.commons.net.util.Base64;
 import org.slf4j.Logger;
@@ -45,9 +43,11 @@ public class MiraiMain implements Closeable {
             return;
         }
 
-        bot = BotFactoryJvm.newBot(Long.parseLong(botProperties.getProperty("bot.qq", "0")), Base64.decodeBase64(botProperties.getProperty("bot.password", "")), new BotConfiguration());
-        Events.subscribeAlways(GroupMessage.class, this::executeMessageEvent);
-        Events.subscribeAlways(FriendMessage.class, this::executeMessageEvent);
+        BotConfiguration configuration = new BotConfiguration();
+        configuration.setProtocol(BotConfiguration.MiraiProtocol.ANDROID_PAD);
+        bot = BotFactoryJvm.newBot(Long.parseLong(botProperties.getProperty("bot.qq", "0")), Base64.decodeBase64(botProperties.getProperty("bot.password", "")), configuration);
+        Events.subscribeAlways(GroupMessageEvent.class, this::executeMessageEvent);
+        Events.subscribeAlways(FriendMessageEvent.class, this::executeMessageEvent);
         Events.subscribeAlways(BotMuteEvent.class,
                 event -> BotEventHandler.setMuteState(event.getGroup().getId(), true));
         Events.subscribeAlways(BotUnmuteEvent.class,
@@ -62,20 +62,27 @@ public class MiraiMain implements Closeable {
      * 处理消息事件
      * @param message 消息事件对象
      */
-    private void executeMessageEvent(ContactMessage message) {
-        if(message instanceof GroupMessage) {
-            GroupMessage groupMessage = (GroupMessage) message;
-            if(BotEventHandler.isMute(groupMessage.getGroup().getId(), true) == null) {
-                BotEventHandler.setMuteState(groupMessage.getGroup().getId(),
-                        ((GroupMessage) message).getGroup().getBotMuteRemaining() != 0);
+    private void executeMessageEvent(MessageEvent message) {
+        if(message instanceof GroupMessageEvent) {
+            GroupMessageEvent GroupMessageEvent = (GroupMessageEvent) message;
+            if(BotEventHandler.isMute(GroupMessageEvent.getGroup().getId(), true) == null) {
+                BotEventHandler.setMuteState(GroupMessageEvent.getGroup().getId(),
+                        ((GroupMessageEvent) message).getGroup().getBotMuteRemaining() != 0);
             }
         }
         BotEventHandler.executeMessageEvent(new MiraiMessageEvent(message));
     }
 
+    /**
+     * 关闭机器人
+     */
     public void close() {
+        if(bot == null) {
+            return;
+        }
         log.warn("正在关闭机器人...");
         bot.close(null);
+        bot = null;
         log.warn("机器人已关闭.");
     }
 
diff --git a/src/main/java/net/lamgc/cgj/bot/framework/mirai/message/MiraiMessageEvent.java b/src/main/java/net/lamgc/cgj/bot/framework/mirai/message/MiraiMessageEvent.java
index 2177eb5..baa8344 100644
--- a/src/main/java/net/lamgc/cgj/bot/framework/mirai/message/MiraiMessageEvent.java
+++ b/src/main/java/net/lamgc/cgj/bot/framework/mirai/message/MiraiMessageEvent.java
@@ -1,29 +1,27 @@
 package net.lamgc.cgj.bot.framework.mirai.message;
 
-import net.lamgc.cgj.bot.event.MessageEvent;
 import net.lamgc.cgj.bot.message.MessageSender;
 import net.lamgc.cgj.bot.message.MessageSource;
-import net.mamoe.mirai.message.ContactMessage;
-import net.mamoe.mirai.message.GroupMessage;
+import net.mamoe.mirai.message.GroupMessageEvent;
+import net.mamoe.mirai.message.MessageEvent;
 import net.mamoe.mirai.message.data.MessageUtils;
 
 import java.util.Objects;
 
-public class MiraiMessageEvent extends MessageEvent {
+public class MiraiMessageEvent extends net.lamgc.cgj.bot.event.MessageEvent {
 
-    private final ContactMessage messageObject;
+    private final MessageEvent messageObject;
     private final MessageSender messageSender;
 
-    public MiraiMessageEvent(ContactMessage message) {
-        super(message instanceof GroupMessage ? ((GroupMessage) message).getGroup().getId() : 0,
+    public MiraiMessageEvent(MessageEvent message) {
+        super(message instanceof GroupMessageEvent ? ((GroupMessageEvent) message).getGroup().getId() : 0,
                 message.getSender().getId(), getMessageBodyWithoutSource(message.getMessage().toString()));
         this.messageObject = Objects.requireNonNull(message);
-        if(message instanceof GroupMessage) {
-            messageSender = new MiraiMessageSender(((GroupMessage) message).getGroup(), MessageSource.Group);
+        if(message instanceof GroupMessageEvent) {
+            messageSender = new MiraiMessageSender(((GroupMessageEvent) message).getGroup(), MessageSource.Group);
         } else {
             messageSender = new MiraiMessageSender(message.getSender(), MessageSource.Private);
         }
-
     }
 
     /**
diff --git a/src/main/java/net/lamgc/cgj/bot/framework/mirai/message/MiraiMessageSender.java b/src/main/java/net/lamgc/cgj/bot/framework/mirai/message/MiraiMessageSender.java
index 149f306..fe502bb 100644
--- a/src/main/java/net/lamgc/cgj/bot/framework/mirai/message/MiraiMessageSender.java
+++ b/src/main/java/net/lamgc/cgj/bot/framework/mirai/message/MiraiMessageSender.java
@@ -60,7 +60,7 @@ public class MiraiMessageSender implements MessageSender {
     public int sendMessage(final String message) {
         log.debug("处理前的消息内容:\n{}", message);
         Message msgBody = processMessage(Objects.requireNonNull(message));
-        log.debug("处理后的消息内容(可能出现乱序的情况, 但实际上顺序是没问题的):\n{}", msgBody);
+        log.debug("处理后的消息内容(可能出现乱序的情况, 但实际上顺序是没问题的):\n{}", msgBody.contentToString());
         member.sendMessage(msgBody);
         return 0;
     }
diff --git a/src/main/java/net/lamgc/cgj/bot/framework/mirai/message/MiraiMessageSenderFactory.java b/src/main/java/net/lamgc/cgj/bot/framework/mirai/message/MiraiMessageSenderFactory.java
index f40616d..9dd8d0f 100644
--- a/src/main/java/net/lamgc/cgj/bot/framework/mirai/message/MiraiMessageSenderFactory.java
+++ b/src/main/java/net/lamgc/cgj/bot/framework/mirai/message/MiraiMessageSenderFactory.java
@@ -5,6 +5,8 @@ import net.lamgc.cgj.bot.message.MessageSenderFactory;
 import net.lamgc.cgj.bot.message.MessageSource;
 import net.mamoe.mirai.Bot;
 
+import java.util.Objects;
+
 public class MiraiMessageSenderFactory implements MessageSenderFactory {
 
     private final Bot bot;
@@ -14,15 +16,11 @@ public class MiraiMessageSenderFactory implements MessageSenderFactory {
     }
 
     @Override
-    public MessageSender createMessageSender(MessageSource source, long id) throws Exception {
-        switch(source) {
-            case Group:
-            case Discuss:
-                return new MiraiMessageSender(bot.getGroup(id), source);
-            case Private:
-                return new MiraiMessageSender(bot.getFriend(id), source);
-            default:
-                throw new NoSuchFieldException(source.toString());
+    public MessageSender createMessageSender(MessageSource source, long id) {
+        Objects.requireNonNull(source);
+        if(id <= 0) {
+            throw new IllegalArgumentException("id cannot be 0 or negative: " + id);
         }
+        return new MiraiMessageSender(bot, source, id);
     }
 }