diff --git a/pom.xml b/pom.xml
index fa72ec9..195c436 100644
--- a/pom.xml
+++ b/pom.xml
@@ -13,8 +13,8 @@
 
     <groupId>cn.csuosa</groupId>
     <artifactId>ChattingRoom-server</artifactId>
-    <version>beta-0.3.0</version>
 
+    <version>beta-0.3.1</version>
 
     <properties>
         <maven.compiler.source>14</maven.compiler.source>
diff --git a/src/main/java/cn/CSUOSA/ChattingRoomServer/Channel/ChannelActions.java b/src/main/java/cn/CSUOSA/ChattingRoomServer/Channel/ChannelActions.java
index 468aca0..288586e 100644
--- a/src/main/java/cn/CSUOSA/ChattingRoomServer/Channel/ChannelActions.java
+++ b/src/main/java/cn/CSUOSA/ChattingRoomServer/Channel/ChannelActions.java
@@ -43,7 +43,6 @@ public static boolean verifyChannel(String name, String ticket)
         }
     }
 
-
     //频道创建相关
     @PostMapping("/create")
     public BoolMsgWithObj channelCreation(@RequestParam(value = "usrNick") String usrNick, @RequestParam(value = "name") String name, String usrTicket, @Nullable String ticket)
@@ -89,7 +88,6 @@ public BoolMsgWithObj channelJoin(@RequestParam(value = "usrNick") String usrNic
         if (!verifyUser(usrNick, usrTicket))
             return new BoolMsgWithObj(false, "Authentication failed.");
 
-
         if (name.length() < 4 || name.length() > 64 || (ticket != null && ticket.length() != 6))
             return new BoolMsgWithObj(false, "Invalid name or ticket length.");
         else
diff --git a/src/main/java/cn/CSUOSA/ChattingRoomServer/Main.java b/src/main/java/cn/CSUOSA/ChattingRoomServer/Main.java
index 6ecf4a6..9372577 100644
--- a/src/main/java/cn/CSUOSA/ChattingRoomServer/Main.java
+++ b/src/main/java/cn/CSUOSA/ChattingRoomServer/Main.java
@@ -3,6 +3,7 @@
 import cn.CSUOSA.ChattingRoomServer.Channel.ChannelInfo;
 import cn.CSUOSA.ChattingRoomServer.ConsoleController.CmdProcessor;
 import cn.CSUOSA.ChattingRoomServer.Message.MessageListEntry;
+import cn.CSUOSA.ChattingRoomServer.Message.MessageListMaintain;
 import cn.CSUOSA.ChattingRoomServer.OverWriteMethod.Out;
 import cn.CSUOSA.ChattingRoomServer.User.UserInfo;
 import cn.CSUOSA.ChattingRoomServer.User.UserMapTimer;
@@ -19,24 +20,22 @@
 @SpringBootApplication
 public class Main
 {
-    public static ConcurrentHashMap<String, UserInfo> UserList;
-    public static ConcurrentHashMap<String, ChannelInfo> ChannelList;
-    public static ConcurrentHashMap<Long, MessageListEntry> MsgList;
-    public static UserMapTimer userMapTimer = new UserMapTimer();
-    public static MessageListThread msgListCleaner = new MessageListThread();
+
+    public final static ConcurrentHashMap<String, UserInfo> UserList = new ConcurrentHashMap<>();   //用户列表
+    public final static ConcurrentHashMap<String, ChannelInfo> ChannelList = new ConcurrentHashMap<>();   //频道列表
+    public final static ConcurrentHashMap<Long, MessageListEntry> MsgList = new ConcurrentHashMap<>();    //消息队列
+    public final static UserMapTimer userMapTimer = new UserMapTimer();
+    public final static MessageListMaintain msgListCleaner = new MessageListMaintain();
     public static Terminal terminal;
     public static LineReader lineReader;
     public static long msgCount = 0;
-
+  
     private static ConfigurableApplicationContext CAC;
     @Autowired
     Environment environment;
 
     public static void main(String[] args)
     {
-        UserList = new ConcurrentHashMap<>();   //用户列表
-        ChannelList = new ConcurrentHashMap<>();          //频道列表
-
         new Thread(new CmdProcessor()).start(); //启动命令行处理器
 
         CAC = SpringApplication.run(Main.class, args);  //启动SpringBoot
@@ -53,13 +52,7 @@ public static void main(String[] args)
         }
 
         Out.Info("Channel [PublicChannel] Opened");
-        Main.ChannelList.put("PublicChannel", new ChannelInfo("PublicChannel", "", false));=======
-        UserList = new ConcurrentHashMap<>();
-        ChannelList = new HashMap<>();
-
-        CAC = SpringApplication.run(Main.class, args);
-        new Thread(userMapTimer).start();
 
-        new Thread(new CmdProcessor()).start();
+        Main.ChannelList.put("PublicChannel", new ChannelInfo("PublicChannel", "", false));
     }
-}
+}
\ No newline at end of file
diff --git a/src/main/java/cn/CSUOSA/ChattingRoomServer/Message/MessageActions.java b/src/main/java/cn/CSUOSA/ChattingRoomServer/Message/MessageActions.java
index bb3c76d..003ee85 100644
--- a/src/main/java/cn/CSUOSA/ChattingRoomServer/Message/MessageActions.java
+++ b/src/main/java/cn/CSUOSA/ChattingRoomServer/Message/MessageActions.java
@@ -1,6 +1,5 @@
 package cn.CSUOSA.ChattingRoomServer.Message;
 
-
 import cn.CSUOSA.ChattingRoomServer.Main;
 import cn.CSUOSA.ChattingRoomServer.ReturnParams.BoolMsgWithObj;
 import cn.CSUOSA.ChattingRoomServer.User.UserInfo;
@@ -12,6 +11,7 @@
 
 import java.text.SimpleDateFormat;
 import java.util.ArrayList;
+import java.util.Collections;
 import java.util.Date;
 
 import static cn.CSUOSA.ChattingRoomServer.Channel.ChannelActions.verifyChannel;
@@ -22,7 +22,7 @@
 public class MessageActions
 {
     @PostMapping("/send")
-    public BoolMsgWithObj sendMsg(@RequestParam(value = "usrNick") String usrNick, @RequestParam(value = "name") String name, String usrTicket, @Nullable String ticket, ArrayList<String> msg)
+    public BoolMsgWithObj sendMsg(@RequestParam(value = "usrNick") String usrNick, @RequestParam(value = "name") String name, String usrTicket, @Nullable String ticket, String msg)
     {
         if (!verifyUser(usrNick, usrTicket))
             return new BoolMsgWithObj(false, "Authentication failed.");
@@ -33,7 +33,7 @@ public BoolMsgWithObj sendMsg(@RequestParam(value = "usrNick") String usrNick, @
         if (!Main.ChannelList.get(name).getMembers().contains(Main.UserList.get(usrNick)))
             return new BoolMsgWithObj(false, "You are not a member of that channel.");
 
-        MessageInfo newMsg = new MessageInfo(new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(new Date()), name, usrNick, msg);
+        MessageInfo newMsg = new MessageInfo(new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(new Date()), name, usrNick, new ArrayList<>(Collections.singletonList(msg)));
         long mid = newMsg.getMsgID();
         MessageListEntry msgListEntry = new MessageListEntry(newMsg);
 
diff --git a/src/main/java/cn/CSUOSA/ChattingRoomServer/Message/MessageListMaintain.java b/src/main/java/cn/CSUOSA/ChattingRoomServer/Message/MessageListMaintain.java
new file mode 100644
index 0000000..90b3bcc
--- /dev/null
+++ b/src/main/java/cn/CSUOSA/ChattingRoomServer/Message/MessageListMaintain.java
@@ -0,0 +1,35 @@
+package cn.CSUOSA.ChattingRoomServer.Message;
+
+import cn.CSUOSA.ChattingRoomServer.Main;
+
+public class MessageListMaintain implements Runnable
+{
+    @Override
+    public void run()
+    {
+        try
+        {
+            while (true)
+            {
+                synchronized (this)
+                {
+                    if (!Main.MsgList.isEmpty())
+                    {
+                        Main.MsgList.forEach((key, value) -> {
+                            MessageListEntry msgEntry = Main.MsgList.get(key);
+
+                            if (msgEntry.getQuoteCount() == 0)
+                            {
+                                Main.MsgList.remove(key);
+                            }
+                        });
+                    }
+                    wait(60 * 1000);
+                }
+            }
+        } catch (Exception e)
+        {
+            e.printStackTrace();
+        }
+    }
+}