diff --git a/Student/src/main/java/com/cfive/classroom/student/Center.java b/Student/src/main/java/com/cfive/classroom/student/Center.java
index 918ddd4..23f63a6 100644
--- a/Student/src/main/java/com/cfive/classroom/student/Center.java
+++ b/Student/src/main/java/com/cfive/classroom/student/Center.java
@@ -1,6 +1,8 @@
 package com.cfive.classroom.student;
 
 import com.cfive.classroom.library.database.DatabaseHelper;
+import com.cfive.classroom.library.database.bean.AttStatus;
+import com.cfive.classroom.library.database.util.DependenciesNotFoundException;
 import com.cfive.classroom.library.database.util.NoConfigException;
 import com.cfive.classroom.library.net.StudentNet;
 import com.cfive.classroom.library.net.util.MessageObject;
@@ -16,6 +18,7 @@ import java.io.BufferedReader;
 import java.io.FileReader;
 import java.io.IOException;
 import java.sql.SQLException;
+import java.time.LocalDateTime;
 import java.util.Properties;
 
 public class Center {
@@ -86,6 +89,7 @@ public class Center {
                     @Override
                     public void onReceive(MessageObject messageObject) {
                         if (messageObject.getMessageType()==MessageType.CheckIn&&messageObject.getCode().equals(signInCode)) {
+                            studentNet.sendMessageThread(new MessageObject(stuNo,stuName,null, null,null,AttStatus.signed,LocalDateTime.now(),null));
                             JOptionPane.showMessageDialog(null, "签到成功");
                         } else {
                             JOptionPane.showMessageDialog(null,"签到失败");
@@ -99,7 +103,7 @@ public class Center {
         raiseHandButton.addActionListener(new ActionListener() {
             @Override
             public void actionPerformed(ActionEvent e) {
-                messageObject = new MessageObject(stuNo, stuName, null, null, null, MessageType.RaiseHand);
+                messageObject = new MessageObject(stuNo, stuName, null, null, null, null,null,MessageType.RaiseHand);
                 studentNet.sendMessageThread(messageObject);
                 JOptionPane.showMessageDialog(null,"你已经向老师举手");
             }
diff --git a/Student/src/main/java/com/cfive/classroom/student/Chat.java b/Student/src/main/java/com/cfive/classroom/student/Chat.java
index 57f1d17..2df131e 100644
--- a/Student/src/main/java/com/cfive/classroom/student/Chat.java
+++ b/Student/src/main/java/com/cfive/classroom/student/Chat.java
@@ -5,10 +5,13 @@ import com.cfive.classroom.library.net.StudentNet;
 import com.cfive.classroom.library.net.util.MessageObject;
 import com.cfive.classroom.library.net.util.MessageType;
 import com.cfive.classroom.library.net.util.ReceiveListener;
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
 
 import javax.swing.*;
 import java.awt.event.ActionEvent;
 import java.awt.event.ActionListener;
+import java.time.LocalDateTime;
 import java.util.Properties;
 
 public class Chat {
@@ -21,6 +24,7 @@ public class Chat {
     private StudentNet studentNet;
     private String stuNo, stuName,host;
     private int port;
+    private static final Logger LOGGER = LogManager.getLogger();
 
     public Chat() {
 
@@ -29,7 +33,8 @@ public class Chat {
             @Override
             public void actionPerformed(ActionEvent e) {
                 if(String.valueOf(sendText.getText())!=null) {
-                    studentNet.sendMessageThread(new MessageObject(stuNo, stuName, null, String.valueOf(sendText.getText()), null, MessageType.Chat));
+                    LOGGER.info(LocalDateTime.now());
+                    studentNet.sendMessageThread(new MessageObject(stuNo, stuName, null, String.valueOf(sendText.getText()) ,null,null,LocalDateTime.now(),MessageType.Chat));
                 }
                 else{
                     JOptionPane.showMessageDialog(null,"无发送内容","错误！",JOptionPane.ERROR_MESSAGE);
@@ -41,7 +46,7 @@ public class Chat {
             @Override
             public void onReceive(MessageObject messageObject) {
                 if(messageObject.getMessageType()==MessageType.ChatToAll){
-                    receiveText.setText("教师：\n"+messageObject.getMessage());
+                    receiveText.append("教师：\n"+messageObject.getMessage()+"\n");
                 }
             }
         });
diff --git a/Student/src/main/java/com/cfive/classroom/student/MainWindow.java b/Student/src/main/java/com/cfive/classroom/student/MainWindow.java
index b813072..29dbd62 100644
--- a/Student/src/main/java/com/cfive/classroom/student/MainWindow.java
+++ b/Student/src/main/java/com/cfive/classroom/student/MainWindow.java
@@ -28,6 +28,7 @@ public class MainWindow{
     private static final Logger LOGGER = LogManager.getLogger();
     public MainWindow() {
         //登录按钮
+
         login.addActionListener(new ActionListener() {
             @Override
             public void actionPerformed(ActionEvent e) {
@@ -40,17 +41,19 @@ public class MainWindow{
         });
     }
     public boolean check(){
-        String stuPassword = new String(passwordText.getPassword());
-        String stuNo = new String(stuNoText.getText());
+        String stuPassword = String.valueOf(passwordText.getPassword());
+        String stuNo = String.valueOf(stuNoText.getText());
         LOGGER.info(Long.valueOf(stuNo));
+        LOGGER.info(stuPassword);
         //判断密码
         if (stuNo.length() == 0 || stuPassword.length() == 0) {
             JOptionPane.showMessageDialog(null, "账号密码不能为空");
             return false;
         } else {
-            boolean checkPassword=false;
+            boolean checkPassword = false;
             try {
-                checkPassword=DatabaseHelper.checkPasswdInStudent(Long.parseLong(stuNo),stuPassword);
+                LOGGER.info(DatabaseHelper.checkPasswdInStudent(Long.parseLong(stuNo), stuPassword));
+                checkPassword = DatabaseHelper.checkPasswdInStudent(Long.parseLong(stuNo), stuPassword);
             } catch (NoConfigException e) {
                 JOptionPane.showMessageDialog(null,"没有数据库配置文件","警告",JOptionPane.ERROR_MESSAGE);
                 LOGGER.error("No configuration", e);
diff --git a/Student/src/test/java/com/cfive/classroom/student/MyTest.java b/Student/src/test/java/com/cfive/classroom/student/MyTest.java
index 252833b..8bd8447 100644
--- a/Student/src/test/java/com/cfive/classroom/student/MyTest.java
+++ b/Student/src/test/java/com/cfive/classroom/student/MyTest.java
@@ -4,6 +4,8 @@ import org.apache.logging.log4j.LogManager;
 import org.apache.logging.log4j.Logger;
 import org.junit.jupiter.api.Test;
 
+import java.time.LocalDateTime;
+
 public class MyTest {
     private static final Logger LOGGER = LogManager.getLogger();
     @Test
@@ -17,4 +19,8 @@ public class MyTest {
         }
     }
 
+    @Test
+    void localDateTimeTest() {
+        LOGGER.info(LocalDateTime.now());
+    }
 }