diff --git a/im-platform/src/main/java/com/bx/implatform/service/impl/FriendServiceImpl.java b/im-platform/src/main/java/com/bx/implatform/service/impl/FriendServiceImpl.java
index 3d450a8..01f65fd 100644
--- a/im-platform/src/main/java/com/bx/implatform/service/impl/FriendServiceImpl.java
+++ b/im-platform/src/main/java/com/bx/implatform/service/impl/FriendServiceImpl.java
@@ -1,6 +1,8 @@
 package com.bx.implatform.service.impl;
 
+import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
 import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
+import com.baomidou.mybatisplus.core.toolkit.Wrappers;
 import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
 import com.bx.implatform.contant.RedisKey;
 import com.bx.implatform.entity.Friend;
@@ -8,14 +10,14 @@ import com.bx.implatform.entity.User;
 import com.bx.implatform.enums.ResultCode;
 import com.bx.implatform.exception.GlobalException;
 import com.bx.implatform.mapper.FriendMapper;
+import com.bx.implatform.mapper.UserMapper;
 import com.bx.implatform.service.IFriendService;
-import com.bx.implatform.service.IUserService;
 import com.bx.implatform.session.SessionContext;
 import com.bx.implatform.session.UserSession;
 import com.bx.implatform.vo.FriendVO;
+import lombok.AllArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.aop.framework.AopContext;
-import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.cache.annotation.CacheConfig;
 import org.springframework.cache.annotation.CacheEvict;
 import org.springframework.cache.annotation.Cacheable;
@@ -26,25 +28,24 @@ import java.util.List;
 
 
 @Slf4j
-@CacheConfig(cacheNames= RedisKey.IM_CACHE_FRIEND)
 @Service
+@AllArgsConstructor
+@CacheConfig(cacheNames= RedisKey.IM_CACHE_FRIEND)
 public class FriendServiceImpl extends ServiceImpl<FriendMapper, Friend> implements IFriendService {
 
-    @Autowired
-    private IUserService userService;
+    private  final UserMapper userMapper;
 
     /**
      * 查询用户的所有好友
      *
      * @param userId   用户id
-     * @return
+     * @return 好友列表
      */
     @Override
     public List<Friend> findFriendByUserId(Long userId) {
-        QueryWrapper<Friend> queryWrapper = new QueryWrapper();
-        queryWrapper.lambda().eq(Friend::getUserId,userId);
-        List<Friend> friends = this.list(queryWrapper);
-        return friends;
+        LambdaQueryWrapper<Friend> queryWrapper = Wrappers.lambdaQuery();
+        queryWrapper.eq(Friend::getUserId,userId);
+        return this.list(queryWrapper);
     }
 
 
@@ -52,9 +53,8 @@ public class FriendServiceImpl extends ServiceImpl<FriendMapper, Friend> impleme
      * 添加好友，互相建立好友关系
      *
      * @param friendId 好友的用户id
-     * @return
      */
-    @Transactional
+    @Transactional(rollbackFor = Exception.class)
     @Override
     public void addFriend(Long friendId) {
         long userId = SessionContext.getSession().getUserId();
@@ -73,9 +73,8 @@ public class FriendServiceImpl extends ServiceImpl<FriendMapper, Friend> impleme
      * 删除好友，双方都会解除好友关系
      *
      * @param friendId 好友的用户id
-     * @return
      */
-    @Transactional
+    @Transactional(rollbackFor = Exception.class)
     @Override
     public void delFriend(Long friendId) {
         long userId = SessionContext.getSession().getUserId();
@@ -92,7 +91,6 @@ public class FriendServiceImpl extends ServiceImpl<FriendMapper, Friend> impleme
      *
      * @param userId1 用户1的id
      * @param userId2 用户2的id
-     * @return
      */
     @Cacheable(key="#userId1+':'+#userId2")
     @Override
@@ -109,7 +107,6 @@ public class FriendServiceImpl extends ServiceImpl<FriendMapper, Friend> impleme
      * 更新好友信息，主要是头像和昵称
      *
      * @param vo  好友vo
-     * @return
      */
     @Override
     public void update(FriendVO vo) {
@@ -135,7 +132,6 @@ public class FriendServiceImpl extends ServiceImpl<FriendMapper, Friend> impleme
      *
      * @param userId  用户id
      * @param friendId  好友的用户id
-     * @return
      */
     @CacheEvict(key="#userId+':'+#friendId")
     public void bindFriend(Long userId, Long friendId) {
@@ -147,7 +143,7 @@ public class FriendServiceImpl extends ServiceImpl<FriendMapper, Friend> impleme
             Friend friend = new Friend();
             friend.setUserId(userId);
             friend.setFriendId(friendId);
-            User friendInfo = userService.getById(friendId);
+            User friendInfo = userMapper.selectById(friendId);
             friend.setFriendHeadImage(friendInfo.getHeadImage());
             friend.setFriendNickName(friendInfo.getNickName());
             this.save(friend);
@@ -160,7 +156,6 @@ public class FriendServiceImpl extends ServiceImpl<FriendMapper, Friend> impleme
      *
      * @param userId  用户id
      * @param friendId  好友的用户id
-     * @return
      */
     @CacheEvict(key="#userId+':'+#friendId")
     public void unbindFriend(Long userId, Long friendId) {
@@ -169,9 +164,7 @@ public class FriendServiceImpl extends ServiceImpl<FriendMapper, Friend> impleme
                 .eq(Friend::getUserId,userId)
                 .eq(Friend::getFriendId,friendId);
         List<Friend> friends = this.list(queryWrapper);
-        friends.stream().forEach(friend -> {
-            this.removeById(friend.getId());
-        });
+        friends.forEach(friend -> this.removeById(friend.getId()));
     }
 
 
@@ -179,7 +172,7 @@ public class FriendServiceImpl extends ServiceImpl<FriendMapper, Friend> impleme
      * 查询指定的某个好友信息
      *
      * @param friendId 好友的用户id
-     * @return
+     * @return 好友信息
      */
     @Override
     public FriendVO findFriend(Long friendId) {
diff --git a/im-platform/src/main/java/com/bx/implatform/service/impl/GroupMemberServiceImpl.java b/im-platform/src/main/java/com/bx/implatform/service/impl/GroupMemberServiceImpl.java
index ec70f53..135c282 100644
--- a/im-platform/src/main/java/com/bx/implatform/service/impl/GroupMemberServiceImpl.java
+++ b/im-platform/src/main/java/com/bx/implatform/service/impl/GroupMemberServiceImpl.java
@@ -18,8 +18,8 @@ import java.util.List;
 import java.util.stream.Collectors;
 
 
-@CacheConfig(cacheNames = RedisKey.IM_CACHE_GROUP_MEMBER_ID)
 @Service
+@CacheConfig(cacheNames = RedisKey.IM_CACHE_GROUP_MEMBER_ID)
 public class GroupMemberServiceImpl extends ServiceImpl<GroupMemberMapper, GroupMember> implements IGroupMemberService {
 
 
@@ -27,7 +27,7 @@ public class GroupMemberServiceImpl extends ServiceImpl<GroupMemberMapper, Group
      * 添加群聊成员
      *
      * @param member 成员
-     * @return
+     * @return  成功或失败
      */
     @CacheEvict(key="#member.getGroupId()")
     @Override
@@ -41,7 +41,7 @@ public class GroupMemberServiceImpl extends ServiceImpl<GroupMemberMapper, Group
      *
      * @param groupId 群聊id
      * @param members 成员列表
-     * @return
+     * @return 成功或失败
      */
     @CacheEvict(key="#groupId")
     @Override
@@ -54,7 +54,7 @@ public class GroupMemberServiceImpl extends ServiceImpl<GroupMemberMapper, Group
      *
      * @param groupId 群聊id
      * @param userId 用户id
-     * @return
+     * @return 群聊成员信息
      */
     @Override
     public GroupMember findByGroupAndUserId(Long groupId, Long userId) {
@@ -69,7 +69,7 @@ public class GroupMemberServiceImpl extends ServiceImpl<GroupMemberMapper, Group
      * 根据用户id查询群聊成员
      *
      * @param userId 用户id
-     * @return
+     * @return 成员列表
      */
     @Override
     public List<GroupMember> findByUserId(Long userId) {
@@ -84,7 +84,7 @@ public class GroupMemberServiceImpl extends ServiceImpl<GroupMemberMapper, Group
      * 根据群聊id查询群聊成员（包括已退出）
      *
      * @param groupId 群聊id
-     * @return
+     * @return 群聊成员列表
      */
     @Override
     public List<GroupMember> findByGroupId(Long groupId) {
@@ -98,7 +98,7 @@ public class GroupMemberServiceImpl extends ServiceImpl<GroupMemberMapper, Group
      * 根据群聊id查询没有退出的群聊成员id
      *
      * @param groupId 群聊id
-     * @return
+     * @return 群聊成员id列表
      */
     @Cacheable(key="#groupId")
     @Override
@@ -115,7 +115,6 @@ public class GroupMemberServiceImpl extends ServiceImpl<GroupMemberMapper, Group
      * 根据群聊id删除移除成员
      *
      * @param groupId  群聊id
-     * @return
      */
     @CacheEvict(key = "#groupId")
     @Override
@@ -131,7 +130,6 @@ public class GroupMemberServiceImpl extends ServiceImpl<GroupMemberMapper, Group
      *
      * @param groupId  群聊id
      * @param userId  用户id
-     * @return
      */
     @CacheEvict(key = "#groupId")
     @Override
diff --git a/im-platform/src/main/java/com/bx/implatform/service/impl/GroupMessageServiceImpl.java b/im-platform/src/main/java/com/bx/implatform/service/impl/GroupMessageServiceImpl.java
index 9493133..f4bac18 100644
--- a/im-platform/src/main/java/com/bx/implatform/service/impl/GroupMessageServiceImpl.java
+++ b/im-platform/src/main/java/com/bx/implatform/service/impl/GroupMessageServiceImpl.java
@@ -8,11 +8,10 @@ import com.baomidou.mybatisplus.core.toolkit.Wrappers;
 import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
 import com.bx.imclient.IMClient;
 import com.bx.imcommon.contant.IMConstant;
-import com.bx.implatform.util.DateTimeUtils;
-import com.bx.implatform.vo.GroupMessageVO;
 import com.bx.imcommon.model.IMGroupMessage;
 import com.bx.imcommon.model.IMUserInfo;
 import com.bx.implatform.contant.RedisKey;
+import com.bx.implatform.dto.GroupMessageDTO;
 import com.bx.implatform.entity.Group;
 import com.bx.implatform.entity.GroupMember;
 import com.bx.implatform.entity.GroupMessage;
@@ -27,10 +26,10 @@ import com.bx.implatform.service.IGroupService;
 import com.bx.implatform.session.SessionContext;
 import com.bx.implatform.session.UserSession;
 import com.bx.implatform.util.BeanUtils;
-import com.bx.implatform.dto.GroupMessageDTO;
-import com.google.common.collect.Lists;
+import com.bx.implatform.util.DateTimeUtils;
+import com.bx.implatform.vo.GroupMessageVO;
+import lombok.AllArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
-import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.data.redis.core.RedisTemplate;
 import org.springframework.stereotype.Service;
 
@@ -39,14 +38,11 @@ import java.util.stream.Collectors;
 
 @Slf4j
 @Service
+@AllArgsConstructor
 public class GroupMessageServiceImpl extends ServiceImpl<GroupMessageMapper, GroupMessage> implements IGroupMessageService {
-    @Autowired
     private IGroupService groupService;
-    @Autowired
     private IGroupMemberService groupMemberService;
-    @Autowired
     private RedisTemplate<String, Object> redisTemplate;
-    @Autowired
     private IMClient imClient;
 
     /**
@@ -105,7 +101,7 @@ public class GroupMessageServiceImpl extends ServiceImpl<GroupMessageMapper, Gro
     public void recallMessage(Long id) {
         UserSession session = SessionContext.getSession();
         GroupMessage msg = this.getById(id);
-        if (msg == null) {
+        if (Objects.isNull(msg)) {
             throw new GlobalException(ResultCode.PROGRAM_ERROR, "消息不存在");
         }
         if (!msg.getSendId().equals(session.getUserId())) {
@@ -203,7 +199,7 @@ public class GroupMessageServiceImpl extends ServiceImpl<GroupMessageMapper, Gro
         List<GroupMember> members = groupMemberService.findByUserId(session.getUserId());
         List<Long> ids = members.stream().map(GroupMember::getGroupId).collect(Collectors.toList());
         if(CollectionUtil.isEmpty(ids)){
-            return Collections.EMPTY_LIST;
+            return new ArrayList<>();
         }
         // 只能拉取最近1个月的
         Date minDate = DateTimeUtils.addMonths(new Date(), -1);
@@ -221,7 +217,7 @@ public class GroupMessageServiceImpl extends ServiceImpl<GroupMessageMapper, Gro
             GroupMessageVO vo = BeanUtils.copyProperties(m, GroupMessageVO.class);
             // 被@用户列表
             List<String> atIds = Arrays.asList(StrUtil.split(m.getAtUserIds(),","));
-            vo.setAtUserIds(atIds.stream().map(id->Long.parseLong(id)).collect(Collectors.toList()));
+            vo.setAtUserIds(atIds.stream().map(Long::parseLong).collect(Collectors.toList()));
             return vo;
         }).collect(Collectors.toList());
         // 消息状态,数据库没有存群聊的消息状态，需要从redis取
diff --git a/im-platform/src/main/java/com/bx/implatform/service/impl/GroupServiceImpl.java b/im-platform/src/main/java/com/bx/implatform/service/impl/GroupServiceImpl.java
index d8597d3..42c290e 100644
--- a/im-platform/src/main/java/com/bx/implatform/service/impl/GroupServiceImpl.java
+++ b/im-platform/src/main/java/com/bx/implatform/service/impl/GroupServiceImpl.java
@@ -23,9 +23,9 @@ import com.bx.implatform.util.BeanUtils;
 import com.bx.implatform.vo.GroupInviteVO;
 import com.bx.implatform.vo.GroupMemberVO;
 import com.bx.implatform.vo.GroupVO;
+import lombok.AllArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 import org.apache.commons.lang3.StringUtils;
-import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.cache.annotation.CacheConfig;
 import org.springframework.cache.annotation.CacheEvict;
 import org.springframework.cache.annotation.Cacheable;
@@ -42,18 +42,11 @@ import java.util.stream.Collectors;
 @Slf4j
 @CacheConfig(cacheNames = RedisKey.IM_CACHE_GROUP)
 @Service
+@AllArgsConstructor
 public class GroupServiceImpl extends ServiceImpl<GroupMapper, Group> implements IGroupService {
-
-    @Autowired
     private IUserService userService;
-
-    @Autowired
     private IGroupMemberService groupMemberService;
-
-    @Autowired
     private IFriendService friendsService;
-
-    @Autowired
     private IMClient imClient;
 
     /**
@@ -92,7 +85,7 @@ public class GroupServiceImpl extends ServiceImpl<GroupMapper, Group> implements
      * @return 群聊信息
      **/
     @CacheEvict(value = "#vo.getId()")
-    @Transactional
+    @Transactional(rollbackFor = Exception.class)
     @Override
     public GroupVO modifyGroup(GroupVO vo) {
         UserSession session = SessionContext.getSession();
@@ -121,7 +114,7 @@ public class GroupServiceImpl extends ServiceImpl<GroupMapper, Group> implements
      * 
      * @param groupId 群聊id
      **/
-    @Transactional
+    @Transactional(rollbackFor = Exception.class)
     @CacheEvict(value = "#groupId")
     @Override
     public void deleteGroup(Long groupId) {
@@ -301,9 +294,7 @@ public class GroupServiceImpl extends ServiceImpl<GroupMapper, Group> implements
             GroupMemberVO vo = BeanUtils.copyProperties(m,GroupMemberVO.class);
             vo.setOnline(onlineUserIds.contains(m.getUserId()));
             return vo;
-        }).sorted((m1,m2)->{
-            return m2.getOnline().compareTo(m1.getOnline());
-        }).collect(Collectors.toList());
+        }).sorted((m1,m2)-> m2.getOnline().compareTo(m1.getOnline())).collect(Collectors.toList());
     }
 
 }
diff --git a/im-platform/src/main/java/com/bx/implatform/service/impl/PrivateMessageServiceImpl.java b/im-platform/src/main/java/com/bx/implatform/service/impl/PrivateMessageServiceImpl.java
index 88f34b5..d707be8 100644
--- a/im-platform/src/main/java/com/bx/implatform/service/impl/PrivateMessageServiceImpl.java
+++ b/im-platform/src/main/java/com/bx/implatform/service/impl/PrivateMessageServiceImpl.java
@@ -24,11 +24,12 @@ import com.bx.implatform.session.SessionContext;
 import com.bx.implatform.session.UserSession;
 import com.bx.implatform.util.BeanUtils;
 import com.bx.implatform.dto.PrivateMessageDTO;
+import lombok.AllArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
-import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 
+import java.util.ArrayList;
 import java.util.Collections;
 import java.util.Date;
 import java.util.List;
@@ -36,12 +37,11 @@ import java.util.stream.Collectors;
 
 @Slf4j
 @Service
+@AllArgsConstructor
 public class PrivateMessageServiceImpl extends ServiceImpl<PrivateMessageMapper, PrivateMessage> implements IPrivateMessageService {
 
-    @Autowired
     private IFriendService friendService;
 
-    @Autowired
     private IMClient imClient;
 
     /**
@@ -199,7 +199,7 @@ public class PrivateMessageServiceImpl extends ServiceImpl<PrivateMessageMapper,
         UserSession session = SessionContext.getSession();
         List<Friend> friends = friendService.findFriendByUserId(session.getUserId());
         if (friends.isEmpty()) {
-            return Collections.EMPTY_LIST;
+            return new ArrayList<>();
         }
         List<Long> friendIds = friends.stream().map(Friend::getFriendId).collect(Collectors.toList());
         // 获取当前用户的消息
diff --git a/im-platform/src/main/java/com/bx/implatform/service/impl/UserServiceImpl.java b/im-platform/src/main/java/com/bx/implatform/service/impl/UserServiceImpl.java
index 8e905dc..9518a3c 100644
--- a/im-platform/src/main/java/com/bx/implatform/service/impl/UserServiceImpl.java
+++ b/im-platform/src/main/java/com/bx/implatform/service/impl/UserServiceImpl.java
@@ -27,41 +27,29 @@ import com.bx.implatform.util.BeanUtils;
 import com.bx.implatform.vo.LoginVO;
 import com.bx.implatform.vo.OnlineTerminalVO;
 import com.bx.implatform.vo.UserVO;
+import lombok.AllArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
-import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.data.redis.core.RedisTemplate;
 import org.springframework.security.crypto.password.PasswordEncoder;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 
-import java.util.Arrays;
-import java.util.LinkedList;
-import java.util.List;
-import java.util.Map;
+import java.util.*;
 import java.util.stream.Collectors;
 
 
 @Slf4j
 @Service
+@AllArgsConstructor
 public class UserServiceImpl extends ServiceImpl<UserMapper, User> implements IUserService {
 
-    @Autowired
     RedisTemplate<String,Object> redisTemplate;
-
-    @Autowired
     private PasswordEncoder passwordEncoder;
-
-    @Autowired
     private IGroupMemberService groupMemberService;
-
-    @Autowired
     private IFriendService friendService;
-
-    @Autowired
     private JwtProperties jwtProperties;
-
-    @Autowired
     private IMClient imClient;
+
     /**
      * 用户登录
      *
@@ -177,7 +165,7 @@ public class UserServiceImpl extends ServiceImpl<UserMapper, User> implements IU
             throw  new GlobalException(ResultCode.PROGRAM_ERROR,"不允许修改其他用户的信息!");
         }
         User user = this.getById(vo.getId());
-        if(null == user){
+        if(Objects.isNull(user)){
             throw  new GlobalException(ResultCode.PROGRAM_ERROR,"用户不存在");
         }
         // 更新好友昵称和头像
diff --git a/im-platform/src/main/java/com/bx/implatform/service/impl/WebrtcServiceImpl.java b/im-platform/src/main/java/com/bx/implatform/service/impl/WebrtcServiceImpl.java
index 64177c2..c80c3c8 100644
--- a/im-platform/src/main/java/com/bx/implatform/service/impl/WebrtcServiceImpl.java
+++ b/im-platform/src/main/java/com/bx/implatform/service/impl/WebrtcServiceImpl.java
@@ -13,8 +13,8 @@ import com.bx.implatform.service.IWebrtcService;
 import com.bx.implatform.session.SessionContext;
 import com.bx.implatform.session.UserSession;
 import com.bx.implatform.session.WebrtcSession;
+import lombok.AllArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
-import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.data.redis.core.RedisTemplate;
 import org.springframework.stereotype.Service;
 import org.springframework.web.bind.annotation.RequestBody;
@@ -25,13 +25,11 @@ import java.util.concurrent.TimeUnit;
 
 @Slf4j
 @Service
+@AllArgsConstructor
 public class WebrtcServiceImpl implements IWebrtcService {
 
-    @Autowired
     private IMClient imClient;
-    @Autowired
     private RedisTemplate<String, Object> redisTemplate;
-    @Autowired
     private ICEServerConfig iceServerConfig;
 
     @Override