diff --git a/src/main/java/com/pyc/campus/config/WebMVCConfig.java b/src/main/java/com/pyc/campus/config/WebMVCConfig.java
index 0656e882b04017212838703a2d87171f04e683b1..b3cf2d35cbb7215a909efd92dbe05578c0a0d7d6 100644
--- a/src/main/java/com/pyc/campus/config/WebMVCConfig.java
+++ b/src/main/java/com/pyc/campus/config/WebMVCConfig.java
@@ -10,10 +10,10 @@ package com.pyc.campus.config;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
 import org.springframework.web.servlet.config.annotation.ViewControllerRegistry;
-import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;
+import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
 
 @Configuration
-public class WebMVCConfig extends WebMvcConfigurerAdapter {
+public class WebMVCConfig implements WebMvcConfigurer {
     @Override
     public void addResourceHandlers(ResourceHandlerRegistry registry) {
         registry.addResourceHandler("/static/**").addResourceLocations("classpath:/static/");
@@ -21,8 +21,6 @@ public class WebMVCConfig extends WebMvcConfigurerAdapter {
 
     @Override
     public void addViewControllers(ViewControllerRegistry registry) {
-//        registry.addViewController("/login").setViewName("page/Login");
-//        registry.addViewController("/home").setViewName("page/Home");
         registry.addViewController("/aboutLearn").setViewName("page/AboutLearn");
         registry.addViewController("/aboutEnglish").setViewName("page/AboutEnglish");
         registry.addViewController("/aboutMath").setViewName("page/AboutMath");
diff --git a/src/main/java/com/pyc/campus/config/WebSecurityConfig.java b/src/main/java/com/pyc/campus/config/WebSecurityConfig.java
index 6090740bf45aacfb6b208c94ffe8b1bf3d332318..72ea44df8596c60631fd9f49934c8613ea3d89a5 100644
--- a/src/main/java/com/pyc/campus/config/WebSecurityConfig.java
+++ b/src/main/java/com/pyc/campus/config/WebSecurityConfig.java
@@ -32,7 +32,7 @@ public class WebSecurityConfig extends WebSecurityConfigurerAdapter {
     @Override
     protected void configure(HttpSecurity http) throws Exception {
         http.sessionManagement()
-                .maximumSessions(1).maxSessionsPreventsLogin(true);
+                .maximumSessions(1).expiredUrl("/login");
         http.authorizeRequests()
                 .antMatchers("/campus").permitAll()
                 .antMatchers("/aboutLearn").permitAll()
diff --git a/src/main/java/com/pyc/campus/config/WebSocketConfig.java b/src/main/java/com/pyc/campus/config/WebSocketConfig.java
index 407f6be626437ca9f97848a63352b46259c48f94..3c7029b080c03cda20e33b2f7dad3e4f76c3db14 100644
--- a/src/main/java/com/pyc/campus/config/WebSocketConfig.java
+++ b/src/main/java/com/pyc/campus/config/WebSocketConfig.java
@@ -10,13 +10,13 @@ package com.pyc.campus.config;
 
 import org.springframework.context.annotation.Configuration;
 import org.springframework.messaging.simp.config.MessageBrokerRegistry;
-import org.springframework.web.socket.config.annotation.AbstractWebSocketMessageBrokerConfigurer;
 import org.springframework.web.socket.config.annotation.EnableWebSocketMessageBroker;
 import org.springframework.web.socket.config.annotation.StompEndpointRegistry;
+import org.springframework.web.socket.config.annotation.WebSocketMessageBrokerConfigurer;
 
 @Configuration
 @EnableWebSocketMessageBroker
-public class WebSocketConfig extends AbstractWebSocketMessageBrokerConfigurer {
+public class WebSocketConfig implements WebSocketMessageBrokerConfigurer {
     @Override
     public void registerStompEndpoints(StompEndpointRegistry registry) {
         registry.addEndpoint("/endpointPublicChat").withSockJS();
diff --git a/src/main/java/com/pyc/campus/controller/ChatController.java b/src/main/java/com/pyc/campus/controller/ChatController.java
index 129378cf64ec668a9942f0d2cb7b76c14ace86fd..132b840395d5307940901260fa485b874663d9a0 100644
--- a/src/main/java/com/pyc/campus/controller/ChatController.java
+++ b/src/main/java/com/pyc/campus/controller/ChatController.java
@@ -10,7 +10,6 @@ package com.pyc.campus.controller;
 import com.pyc.campus.domain.PublishMessage;
 import com.pyc.campus.domain.ResponseMessage;
 import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.data.repository.query.Param;
 import org.springframework.messaging.handler.annotation.DestinationVariable;
 import org.springframework.messaging.handler.annotation.MessageMapping;
 import org.springframework.messaging.handler.annotation.SendTo;
diff --git a/src/main/java/com/pyc/campus/controller/WebController.java b/src/main/java/com/pyc/campus/controller/WebController.java
index 9715532eedd9ad53feccd2aea554a0cae97d8328..9f7cb459300bda3334d52676488f49acb9418102 100644
--- a/src/main/java/com/pyc/campus/controller/WebController.java
+++ b/src/main/java/com/pyc/campus/controller/WebController.java
@@ -361,7 +361,7 @@ public class WebController {
     }
 //@RequestMapping("/")
     @RequestMapping("/campus")
-    public String oppo() {
+    public String campus() {
         return "page/Index";
     }
 
diff --git a/src/main/java/com/pyc/campus/service/MailServiceImpl.java b/src/main/java/com/pyc/campus/service/MailServiceImpl.java
index 3151969f9b7100926d147985c4936ed652021d20..6b7be682d76e327b607bdd2322407206afdbdb19 100644
--- a/src/main/java/com/pyc/campus/service/MailServiceImpl.java
+++ b/src/main/java/com/pyc/campus/service/MailServiceImpl.java
@@ -9,7 +9,6 @@ package com.pyc.campus.service;
 
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
-import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.mail.SimpleMailMessage;
 import org.springframework.mail.javamail.JavaMailSender;
 import org.springframework.stereotype.Service;
diff --git a/src/main/resources/templates/page/PrivateChat.html b/src/main/resources/templates/page/PrivateChat.html
index 0ab6030ecb3d24f8418994cf5e64947addb0c3a8..35dc12f252e68758a551c7717165524e1b248b82 100644
--- a/src/main/resources/templates/page/PrivateChat.html
+++ b/src/main/resources/templates/page/PrivateChat.html
@@ -83,7 +83,6 @@
         let str="<div class=\"right_d\"><div class=\"speech right\" ng-class=\"speech right\">"+message.body+"</div></div>";
         $('#output').append(str);
         console.log(str);
-        /*$('#output').append("</br><b>"+[[${toName}]]+":"+message.body+"</b></br>")*/
     }
     function sendSpittle(text) {
         stomp.send("/chat/"+[[${toName}]],{},text);