diff --git a/CrazyCarServer/src/main/java/com/tastsong/crazycar/common/Result.java b/CrazyCarServer/src/main/java/com/tastsong/crazycar/common/Result.java
index 67aabe4e0..fc15939e5 100644
--- a/CrazyCarServer/src/main/java/com/tastsong/crazycar/common/Result.java
+++ b/CrazyCarServer/src/main/java/com/tastsong/crazycar/common/Result.java
@@ -3,6 +3,7 @@
 import lombok.Data;
 
 import java.io.Serializable;
+import java.util.Optional;
 
 @Data
 public class Result<T> implements Serializable {
@@ -71,12 +72,12 @@ public static <T> Result<T> success(int code, String message) {
         return success(code, message, null);
     }
 
-    public static <T> Result<T> success(int code,String message,T data) {
-        Result<T> result = new Result<T>();
+    public static <T> Result<T> success(int code, String message, T data) {
+        Result<T> result = new Result<>();
         result.setCode(code);
         result.setMsg(message);
         result.setSuccess(true);
-        result.setData(data != null ? data : (T)"");
+        result.setData(Optional.ofNullable(data).orElse(null));
         return result;
     }
 
@@ -124,7 +125,7 @@ public static <T> Result<T> failure(int code, String message, T data) {
         result.setCode(code);
         result.setMsg(message);
         result.setSuccess(false);
-        result.setData(data != null ? data : (T)"");
+        result.setData(Optional.ofNullable(data).orElse(null));
         return result;
     }
 
diff --git a/CrazyCarServer/src/main/java/com/tastsong/crazycar/config/CORSFilter.java b/CrazyCarServer/src/main/java/com/tastsong/crazycar/config/CORSFilter.java
index 59264f8cc..01c2a06b4 100644
--- a/CrazyCarServer/src/main/java/com/tastsong/crazycar/config/CORSFilter.java
+++ b/CrazyCarServer/src/main/java/com/tastsong/crazycar/config/CORSFilter.java
@@ -17,7 +17,6 @@
 
 import com.tastsong.crazycar.common.Result;
 import com.tastsong.crazycar.common.ResultCode;
-import com.tastsong.crazycar.utils.Util;
 
 import cn.hutool.json.JSONUtil;
 import lombok.extern.slf4j.Slf4j;
diff --git a/CrazyCarServer/src/main/java/com/tastsong/crazycar/config/GlobalExceptionConfig.java b/CrazyCarServer/src/main/java/com/tastsong/crazycar/config/GlobalExceptionConfig.java
index 353629c1f..c12f12b1b 100644
--- a/CrazyCarServer/src/main/java/com/tastsong/crazycar/config/GlobalExceptionConfig.java
+++ b/CrazyCarServer/src/main/java/com/tastsong/crazycar/config/GlobalExceptionConfig.java
@@ -3,7 +3,6 @@
 
 import com.tastsong.crazycar.common.Result;
 import com.tastsong.crazycar.common.ResultCode;
-import lombok.extern.slf4j.Slf4j;
 import org.springframework.http.HttpStatus;
 import org.springframework.validation.BindException;
 import org.springframework.validation.FieldError;
@@ -13,7 +12,6 @@
 
 import java.util.List;
 
-@Slf4j
 @RestControllerAdvice
 public class GlobalExceptionConfig {
 
diff --git a/CrazyCarServer/src/main/java/com/tastsong/crazycar/controller/AvatarController.java b/CrazyCarServer/src/main/java/com/tastsong/crazycar/controller/AvatarController.java
index a8056b6c2..4212c3f1a 100644
--- a/CrazyCarServer/src/main/java/com/tastsong/crazycar/controller/AvatarController.java
+++ b/CrazyCarServer/src/main/java/com/tastsong/crazycar/controller/AvatarController.java
@@ -17,8 +17,6 @@
 import com.tastsong.crazycar.service.AvatarService;
 import com.tastsong.crazycar.utils.Util;
 
-import cn.hutool.json.JSONObject;
-
 import javax.validation.Valid;
 
 @Slf4j
diff --git a/CrazyCarServer/src/main/java/com/tastsong/crazycar/controller/BackgroundAssetsController.java b/CrazyCarServer/src/main/java/com/tastsong/crazycar/controller/BackgroundAssetsController.java
index 6080a5b68..fc43a82b1 100644
--- a/CrazyCarServer/src/main/java/com/tastsong/crazycar/controller/BackgroundAssetsController.java
+++ b/CrazyCarServer/src/main/java/com/tastsong/crazycar/controller/BackgroundAssetsController.java
@@ -18,9 +18,6 @@
 import com.tastsong.crazycar.model.AssetsUpdatingModel;
 import com.tastsong.crazycar.service.AssetsUpdatingService;
 
-import cn.hutool.json.JSONArray;
-import cn.hutool.json.JSONObject;
-
 import javax.validation.Valid;
 
 @Slf4j
diff --git a/CrazyCarServer/src/main/java/com/tastsong/crazycar/controller/BackgroundAvatarController.java b/CrazyCarServer/src/main/java/com/tastsong/crazycar/controller/BackgroundAvatarController.java
index d7a827df3..080122e0d 100644
--- a/CrazyCarServer/src/main/java/com/tastsong/crazycar/controller/BackgroundAvatarController.java
+++ b/CrazyCarServer/src/main/java/com/tastsong/crazycar/controller/BackgroundAvatarController.java
@@ -16,8 +16,6 @@
 import com.tastsong.crazycar.model.AvatarModel;
 import com.tastsong.crazycar.service.AvatarService;
 
-import cn.hutool.json.JSONObject;
-
 import javax.validation.Valid;
 import java.util.List;
 
diff --git a/CrazyCarServer/src/main/java/com/tastsong/crazycar/controller/BackgroundDashboardController.java b/CrazyCarServer/src/main/java/com/tastsong/crazycar/controller/BackgroundDashboardController.java
index a32b6fc17..ed73122b0 100644
--- a/CrazyCarServer/src/main/java/com/tastsong/crazycar/controller/BackgroundDashboardController.java
+++ b/CrazyCarServer/src/main/java/com/tastsong/crazycar/controller/BackgroundDashboardController.java
@@ -1,8 +1,5 @@
 package com.tastsong.crazycar.controller;
 
-import com.tastsong.crazycar.dto.resp.RespDashboardData;
-import com.tastsong.crazycar.service.AvatarService;
-import com.tastsong.crazycar.service.UserService;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.context.annotation.Scope;
 import org.springframework.web.bind.annotation.GetMapping;
@@ -11,8 +8,6 @@
 
 import com.tastsong.crazycar.service.BackgroundDashboardService;
 
-import cn.hutool.json.JSONObject;
-
 @RestController
 @Scope("prototype")
 @RequestMapping(value = "/v2/Background")
diff --git a/CrazyCarServer/src/main/java/com/tastsong/crazycar/controller/BackgroundEquipController.java b/CrazyCarServer/src/main/java/com/tastsong/crazycar/controller/BackgroundEquipController.java
index 4d714b088..cedfd00cb 100644
--- a/CrazyCarServer/src/main/java/com/tastsong/crazycar/controller/BackgroundEquipController.java
+++ b/CrazyCarServer/src/main/java/com/tastsong/crazycar/controller/BackgroundEquipController.java
@@ -18,8 +18,6 @@
 import com.tastsong.crazycar.model.EquipModel;
 import com.tastsong.crazycar.service.EquipService;
 
-import cn.hutool.json.JSONObject;
-
 import javax.validation.Valid;
 
 @RestController
diff --git a/CrazyCarServer/src/main/java/com/tastsong/crazycar/controller/BackgroundLogin.java b/CrazyCarServer/src/main/java/com/tastsong/crazycar/controller/BackgroundLogin.java
index 0dd4a0430..71cefbd64 100644
--- a/CrazyCarServer/src/main/java/com/tastsong/crazycar/controller/BackgroundLogin.java
+++ b/CrazyCarServer/src/main/java/com/tastsong/crazycar/controller/BackgroundLogin.java
@@ -2,7 +2,6 @@
 
 import com.tastsong.crazycar.dto.req.ReqBackgroundLogin;
 import com.tastsong.crazycar.service.LoginService;
-import lombok.extern.slf4j.Slf4j;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.context.annotation.Scope;
 import org.springframework.web.bind.annotation.PostMapping;
@@ -14,13 +13,9 @@
 import com.tastsong.crazycar.common.ResultCode;
 import com.tastsong.crazycar.model.AdminUserModel;
 import com.tastsong.crazycar.service.BackgroundUserService;
-import com.tastsong.crazycar.utils.Util;
-
-import cn.hutool.json.JSONObject;
 
 import javax.validation.Valid;
 
-@Slf4j
 @RestController
 @Scope("prototype")
 @RequestMapping(value = "/v1/Background")
diff --git a/CrazyCarServer/src/main/java/com/tastsong/crazycar/controller/BackgroundMatchController.java b/CrazyCarServer/src/main/java/com/tastsong/crazycar/controller/BackgroundMatchController.java
index 4b461a3b6..2bc8d3ed2 100644
--- a/CrazyCarServer/src/main/java/com/tastsong/crazycar/controller/BackgroundMatchController.java
+++ b/CrazyCarServer/src/main/java/com/tastsong/crazycar/controller/BackgroundMatchController.java
@@ -16,7 +16,6 @@
 import org.springframework.web.bind.annotation.RestController;
 
 import com.tastsong.crazycar.model.MatchMapModel;
-import com.tastsong.crazycar.service.MatchRecordService;
 
 import cn.hutool.json.JSONObject;
 
diff --git a/CrazyCarServer/src/main/java/com/tastsong/crazycar/controller/BackgroundTimeTrialController.java b/CrazyCarServer/src/main/java/com/tastsong/crazycar/controller/BackgroundTimeTrialController.java
index 5c4b384cf..195d19045 100644
--- a/CrazyCarServer/src/main/java/com/tastsong/crazycar/controller/BackgroundTimeTrialController.java
+++ b/CrazyCarServer/src/main/java/com/tastsong/crazycar/controller/BackgroundTimeTrialController.java
@@ -17,9 +17,6 @@
 import org.springframework.web.bind.annotation.RestController;
 
 import com.tastsong.crazycar.model.TimeTrialClassModel;
-import com.tastsong.crazycar.service.TimeTrialRecordService;
-
-import cn.hutool.json.JSONObject;
 
 import javax.validation.Valid;
 
diff --git a/CrazyCarServer/src/main/java/com/tastsong/crazycar/controller/BackgroundUser.java b/CrazyCarServer/src/main/java/com/tastsong/crazycar/controller/BackgroundUser.java
index 3f0e93a9d..abd907cec 100644
--- a/CrazyCarServer/src/main/java/com/tastsong/crazycar/controller/BackgroundUser.java
+++ b/CrazyCarServer/src/main/java/com/tastsong/crazycar/controller/BackgroundUser.java
@@ -13,7 +13,6 @@
 import org.springframework.web.bind.annotation.RequestBody;
 import org.springframework.web.bind.annotation.RequestHeader;
 import org.springframework.web.bind.annotation.RequestMapping;
-import org.springframework.web.bind.annotation.RequestParam;
 import org.springframework.web.bind.annotation.RestController;
 
 import com.tastsong.crazycar.common.Result;
@@ -21,18 +20,14 @@
 import com.tastsong.crazycar.model.AdminUserModel;
 import com.tastsong.crazycar.model.UserModel;
 import com.tastsong.crazycar.service.BackgroundUserService;
-import com.tastsong.crazycar.service.LoginService;
 import com.tastsong.crazycar.utils.Util;
 
 import cn.hutool.json.JSONArray;
-import cn.hutool.json.JSONObject;
-import lombok.extern.slf4j.Slf4j;
 
 import javax.validation.Valid;
 
 @RestController
 @Scope("prototype")
-@Slf4j
 @RequestMapping(value = "/v2/Background")
 public class BackgroundUser {
     @Autowired
diff --git a/CrazyCarServer/src/main/java/com/tastsong/crazycar/controller/BackgroundVersionController.java b/CrazyCarServer/src/main/java/com/tastsong/crazycar/controller/BackgroundVersionController.java
index 2c8570428..ac5f92080 100644
--- a/CrazyCarServer/src/main/java/com/tastsong/crazycar/controller/BackgroundVersionController.java
+++ b/CrazyCarServer/src/main/java/com/tastsong/crazycar/controller/BackgroundVersionController.java
@@ -13,8 +13,6 @@
 import com.tastsong.crazycar.model.VersionModel;
 import com.tastsong.crazycar.service.VersionService;
 
-import cn.hutool.json.JSONObject;
-
 import javax.validation.Valid;
 import java.util.List;
 
diff --git a/CrazyCarServer/src/main/java/com/tastsong/crazycar/controller/EquipController.java b/CrazyCarServer/src/main/java/com/tastsong/crazycar/controller/EquipController.java
index 925d6a810..73a19c5f8 100644
--- a/CrazyCarServer/src/main/java/com/tastsong/crazycar/controller/EquipController.java
+++ b/CrazyCarServer/src/main/java/com/tastsong/crazycar/controller/EquipController.java
@@ -16,8 +16,6 @@
 import com.tastsong.crazycar.common.Result;
 import com.tastsong.crazycar.common.ResultCode;
 
-import cn.hutool.json.JSONObject;
-
 import javax.validation.Valid;
 
 @RestController
diff --git a/CrazyCarServer/src/main/java/com/tastsong/crazycar/controller/GameController.java b/CrazyCarServer/src/main/java/com/tastsong/crazycar/controller/GameController.java
index 71408a5fe..180a8f1b9 100644
--- a/CrazyCarServer/src/main/java/com/tastsong/crazycar/controller/GameController.java
+++ b/CrazyCarServer/src/main/java/com/tastsong/crazycar/controller/GameController.java
@@ -12,15 +12,12 @@
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RestController;
 
-import cn.hutool.json.JSONObject;
 import lombok.extern.slf4j.Slf4j;
 
 import com.tastsong.crazycar.common.GameType;
 import com.tastsong.crazycar.common.NetType;
 import com.tastsong.crazycar.common.Result;
 import com.tastsong.crazycar.common.ResultCode;
-import com.tastsong.crazycar.service.MatchRecordService;
-import com.tastsong.crazycar.service.TimeTrialRecordService;
 import com.tastsong.crazycar.utils.Util;
 
 import javax.validation.Valid;
@@ -30,13 +27,9 @@
 @Slf4j
 @RequestMapping(value = "/v2/Game")
 public class GameController {
-    @Autowired
-    private TimeTrialRecordService timeTrialRecordService;
     @Autowired
     private TimeTrialClassService timeTrialClassService;
 
-    @Autowired
-    private MatchRecordService matchRecordService;
     @Autowired
     private UserService userService;
 
diff --git a/CrazyCarServer/src/main/java/com/tastsong/crazycar/controller/KCPRttController.java b/CrazyCarServer/src/main/java/com/tastsong/crazycar/controller/KCPRttController.java
index 8d0d0878b..d69ecdc81 100644
--- a/CrazyCarServer/src/main/java/com/tastsong/crazycar/controller/KCPRttController.java
+++ b/CrazyCarServer/src/main/java/com/tastsong/crazycar/controller/KCPRttController.java
@@ -1,6 +1,5 @@
 package com.tastsong.crazycar.controller;
 
-import java.io.Serial;
 import java.util.concurrent.ConcurrentHashMap;
 
 import javax.servlet.http.HttpServlet;
diff --git a/CrazyCarServer/src/main/java/com/tastsong/crazycar/controller/LoginController.java b/CrazyCarServer/src/main/java/com/tastsong/crazycar/controller/LoginController.java
index 8e13dbe4a..d588aecc5 100644
--- a/CrazyCarServer/src/main/java/com/tastsong/crazycar/controller/LoginController.java
+++ b/CrazyCarServer/src/main/java/com/tastsong/crazycar/controller/LoginController.java
@@ -2,7 +2,6 @@
 
 import com.tastsong.crazycar.dto.req.ReqLogin;
 import com.tastsong.crazycar.dto.resp.RespConfig;
-import com.tastsong.crazycar.service.UserLoginRecordService;
 import com.tastsong.crazycar.service.UserService;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.context.annotation.Scope;
@@ -19,7 +18,6 @@
 import com.tastsong.crazycar.service.LoginService;
 import com.tastsong.crazycar.utils.Util;
 
-import cn.hutool.json.JSONObject;
 import lombok.extern.slf4j.Slf4j;
 
 import javax.validation.Valid;
@@ -33,8 +31,6 @@ public class LoginController {
 	private LoginService loginService;
 	@Autowired
 	private UserService userService;
-	@Autowired
-	private UserLoginRecordService userLoginRecordService;
 
 	@PostMapping(value = "/Login")
 	public Object login(@Valid @RequestBody ReqLogin req) throws Exception {
diff --git a/CrazyCarServer/src/main/java/com/tastsong/crazycar/controller/TimeTrialController.java b/CrazyCarServer/src/main/java/com/tastsong/crazycar/controller/TimeTrialController.java
index c048ac03f..bd98b5f28 100644
--- a/CrazyCarServer/src/main/java/com/tastsong/crazycar/controller/TimeTrialController.java
+++ b/CrazyCarServer/src/main/java/com/tastsong/crazycar/controller/TimeTrialController.java
@@ -20,8 +20,6 @@
 import com.tastsong.crazycar.service.TimeTrialRecordService;
 import com.tastsong.crazycar.utils.Util;
 
-import cn.hutool.json.JSONObject;
-
 import javax.validation.Valid;
 
 @RestController
@@ -51,7 +49,6 @@ public Object getDetail(@RequestHeader(Util.TOKEN) String token) throws Exceptio
     public Object budClass(@RequestHeader(Util.TOKEN) String token, @Valid @RequestBody ReqMatchInfo req) throws Exception {
         int uid = Util.getUidByToken(token);
         int cid = req.getCid();
-        JSONObject data = new JSONObject();
         if (timeTrialClassService.hasClass(uid, cid)) {
             System.out.print("++++++++ isHasClass ");
             return userService.getUserByUid(uid);
diff --git a/CrazyCarServer/src/main/java/com/tastsong/crazycar/controller/UserInfoController.java b/CrazyCarServer/src/main/java/com/tastsong/crazycar/controller/UserInfoController.java
index 7e2e378bb..720d000c6 100644
--- a/CrazyCarServer/src/main/java/com/tastsong/crazycar/controller/UserInfoController.java
+++ b/CrazyCarServer/src/main/java/com/tastsong/crazycar/controller/UserInfoController.java
@@ -16,8 +16,6 @@
 import com.tastsong.crazycar.service.LoginService;
 import com.tastsong.crazycar.utils.Util;
 
-import cn.hutool.json.JSONObject;
-
 import org.springframework.web.bind.annotation.PostMapping;
 import org.springframework.web.bind.annotation.RequestBody;
 import org.springframework.web.bind.annotation.RequestHeader;
diff --git a/CrazyCarServer/src/main/java/com/tastsong/crazycar/dto/req/ReqAvatar.java b/CrazyCarServer/src/main/java/com/tastsong/crazycar/dto/req/ReqAvatar.java
index 8f4f7a62e..974ac2ca7 100644
--- a/CrazyCarServer/src/main/java/com/tastsong/crazycar/dto/req/ReqAvatar.java
+++ b/CrazyCarServer/src/main/java/com/tastsong/crazycar/dto/req/ReqAvatar.java
@@ -1,7 +1,5 @@
 package com.tastsong.crazycar.dto.req;
 
-
-import com.fasterxml.jackson.annotation.JsonProperty;
 import lombok.AllArgsConstructor;
 import lombok.Data;
 import lombok.NoArgsConstructor;
diff --git a/CrazyCarServer/src/main/java/com/tastsong/crazycar/dto/req/ReqRoomMsg.java b/CrazyCarServer/src/main/java/com/tastsong/crazycar/dto/req/ReqRoomMsg.java
index 63453b655..4f7d0353b 100644
--- a/CrazyCarServer/src/main/java/com/tastsong/crazycar/dto/req/ReqRoomMsg.java
+++ b/CrazyCarServer/src/main/java/com/tastsong/crazycar/dto/req/ReqRoomMsg.java
@@ -6,7 +6,6 @@
 import lombok.NoArgsConstructor;
 import lombok.ToString;
 
-import javax.validation.constraints.Min;
 import javax.validation.constraints.NotNull;
 
 @NoArgsConstructor
diff --git a/CrazyCarServer/src/main/java/com/tastsong/crazycar/dto/req/ReqUpdateAvatar.java b/CrazyCarServer/src/main/java/com/tastsong/crazycar/dto/req/ReqUpdateAvatar.java
index 944267f57..8031a05a9 100644
--- a/CrazyCarServer/src/main/java/com/tastsong/crazycar/dto/req/ReqUpdateAvatar.java
+++ b/CrazyCarServer/src/main/java/com/tastsong/crazycar/dto/req/ReqUpdateAvatar.java
@@ -1,7 +1,5 @@
 package com.tastsong.crazycar.dto.req;
 
-
-import com.fasterxml.jackson.annotation.JsonProperty;
 import lombok.AllArgsConstructor;
 import lombok.Data;
 import lombok.NoArgsConstructor;
diff --git a/CrazyCarServer/src/main/java/com/tastsong/crazycar/dto/req/ReqUpdateEquip.java b/CrazyCarServer/src/main/java/com/tastsong/crazycar/dto/req/ReqUpdateEquip.java
index 1de7df597..8efa629ef 100644
--- a/CrazyCarServer/src/main/java/com/tastsong/crazycar/dto/req/ReqUpdateEquip.java
+++ b/CrazyCarServer/src/main/java/com/tastsong/crazycar/dto/req/ReqUpdateEquip.java
@@ -1,13 +1,10 @@
 package com.tastsong.crazycar.dto.req;
 
-import com.baomidou.mybatisplus.annotation.IdType;
-import com.baomidou.mybatisplus.annotation.TableId;
 import lombok.AllArgsConstructor;
 import lombok.Data;
 import lombok.NoArgsConstructor;
 import lombok.ToString;
 
-import javax.persistence.*;
 import javax.validation.constraints.NotNull;
 
 @NoArgsConstructor
diff --git a/CrazyCarServer/src/main/java/com/tastsong/crazycar/dto/req/ReqUpdateRole.java b/CrazyCarServer/src/main/java/com/tastsong/crazycar/dto/req/ReqUpdateRole.java
index 7521dc91f..feb5b43f1 100644
--- a/CrazyCarServer/src/main/java/com/tastsong/crazycar/dto/req/ReqUpdateRole.java
+++ b/CrazyCarServer/src/main/java/com/tastsong/crazycar/dto/req/ReqUpdateRole.java
@@ -1,7 +1,5 @@
 package com.tastsong.crazycar.dto.req;
 
-
-import com.fasterxml.jackson.annotation.JsonProperty;
 import lombok.AllArgsConstructor;
 import lombok.Data;
 import lombok.NoArgsConstructor;
diff --git a/CrazyCarServer/src/main/java/com/tastsong/crazycar/dto/req/ReqUpdateUserPassword.java b/CrazyCarServer/src/main/java/com/tastsong/crazycar/dto/req/ReqUpdateUserPassword.java
index 704465b5a..6e19aecdc 100644
--- a/CrazyCarServer/src/main/java/com/tastsong/crazycar/dto/req/ReqUpdateUserPassword.java
+++ b/CrazyCarServer/src/main/java/com/tastsong/crazycar/dto/req/ReqUpdateUserPassword.java
@@ -6,7 +6,6 @@
 import lombok.NoArgsConstructor;
 import lombok.ToString;
 
-import javax.validation.constraints.Min;
 import javax.validation.constraints.NotNull;
 
 @NoArgsConstructor
diff --git a/CrazyCarServer/src/main/java/com/tastsong/crazycar/dto/req/ReqUpdateVersion.java b/CrazyCarServer/src/main/java/com/tastsong/crazycar/dto/req/ReqUpdateVersion.java
index db7f6f72c..918dbbe0d 100644
--- a/CrazyCarServer/src/main/java/com/tastsong/crazycar/dto/req/ReqUpdateVersion.java
+++ b/CrazyCarServer/src/main/java/com/tastsong/crazycar/dto/req/ReqUpdateVersion.java
@@ -1,15 +1,10 @@
 package com.tastsong.crazycar.dto.req;
 
-import com.baomidou.mybatisplus.annotation.IdType;
-import com.baomidou.mybatisplus.annotation.TableId;
-import com.baomidou.mybatisplus.annotation.TableName;
-import com.tastsong.crazycar.model.ConstModelNameAttribute;
 import lombok.AllArgsConstructor;
 import lombok.Data;
 import lombok.NoArgsConstructor;
 import lombok.ToString;
 
-import javax.persistence.*;
 import javax.validation.constraints.NotNull;
 
 @NoArgsConstructor
diff --git a/CrazyCarServer/src/main/java/com/tastsong/crazycar/dto/resp/RespAvatarList.java b/CrazyCarServer/src/main/java/com/tastsong/crazycar/dto/resp/RespAvatarList.java
index 5b44c443e..5f163fcd9 100644
--- a/CrazyCarServer/src/main/java/com/tastsong/crazycar/dto/resp/RespAvatarList.java
+++ b/CrazyCarServer/src/main/java/com/tastsong/crazycar/dto/resp/RespAvatarList.java
@@ -1,6 +1,5 @@
 package com.tastsong.crazycar.dto.resp;
 
-import com.fasterxml.jackson.annotation.JsonProperty;
 import lombok.AllArgsConstructor;
 import lombok.Data;
 import lombok.NoArgsConstructor;
diff --git a/CrazyCarServer/src/main/java/com/tastsong/crazycar/dto/resp/RespDashboardData.java b/CrazyCarServer/src/main/java/com/tastsong/crazycar/dto/resp/RespDashboardData.java
index 0c657cc88..6a5a55421 100644
--- a/CrazyCarServer/src/main/java/com/tastsong/crazycar/dto/resp/RespDashboardData.java
+++ b/CrazyCarServer/src/main/java/com/tastsong/crazycar/dto/resp/RespDashboardData.java
@@ -1,6 +1,5 @@
 package com.tastsong.crazycar.dto.resp;
 
-import com.fasterxml.jackson.annotation.JsonProperty;
 import lombok.AllArgsConstructor;
 import lombok.Data;
 import lombok.NoArgsConstructor;
diff --git a/CrazyCarServer/src/main/java/com/tastsong/crazycar/dto/resp/RespEnterGame.java b/CrazyCarServer/src/main/java/com/tastsong/crazycar/dto/resp/RespEnterGame.java
index 9570cb263..cd4e64b87 100644
--- a/CrazyCarServer/src/main/java/com/tastsong/crazycar/dto/resp/RespEnterGame.java
+++ b/CrazyCarServer/src/main/java/com/tastsong/crazycar/dto/resp/RespEnterGame.java
@@ -5,9 +5,6 @@
 import lombok.NoArgsConstructor;
 import lombok.ToString;
 
-import java.util.ArrayList;
-import java.util.List;
-
 @NoArgsConstructor
 @AllArgsConstructor
 @ToString
diff --git a/CrazyCarServer/src/main/java/com/tastsong/crazycar/dto/resp/RespTimeTrailResult.java b/CrazyCarServer/src/main/java/com/tastsong/crazycar/dto/resp/RespTimeTrailResult.java
index 7be33b342..ff2a50761 100644
--- a/CrazyCarServer/src/main/java/com/tastsong/crazycar/dto/resp/RespTimeTrailResult.java
+++ b/CrazyCarServer/src/main/java/com/tastsong/crazycar/dto/resp/RespTimeTrailResult.java
@@ -6,9 +6,6 @@
 import lombok.NoArgsConstructor;
 import lombok.ToString;
 
-import java.util.ArrayList;
-import java.util.List;
-
 @NoArgsConstructor
 @AllArgsConstructor
 @ToString
diff --git a/CrazyCarServer/src/main/java/com/tastsong/crazycar/mapper/AdminUserMapper.java b/CrazyCarServer/src/main/java/com/tastsong/crazycar/mapper/AdminUserMapper.java
index f3d1800a0..9992ca4a3 100644
--- a/CrazyCarServer/src/main/java/com/tastsong/crazycar/mapper/AdminUserMapper.java
+++ b/CrazyCarServer/src/main/java/com/tastsong/crazycar/mapper/AdminUserMapper.java
@@ -1,7 +1,5 @@
 package com.tastsong.crazycar.mapper;
 
-import java.util.List;
-
 import com.baomidou.mybatisplus.core.mapper.BaseMapper;
 import com.tastsong.crazycar.model.AdminUserModel;
 
diff --git a/CrazyCarServer/src/main/java/com/tastsong/crazycar/mapper/AvatarMapper.java b/CrazyCarServer/src/main/java/com/tastsong/crazycar/mapper/AvatarMapper.java
index 16e6697e0..f490d892c 100644
--- a/CrazyCarServer/src/main/java/com/tastsong/crazycar/mapper/AvatarMapper.java
+++ b/CrazyCarServer/src/main/java/com/tastsong/crazycar/mapper/AvatarMapper.java
@@ -1,7 +1,5 @@
 package com.tastsong.crazycar.mapper;
 
-import java.util.List;
-
 import com.baomidou.mybatisplus.core.mapper.BaseMapper;
 import com.tastsong.crazycar.model.AvatarModel;
 
diff --git a/CrazyCarServer/src/main/java/com/tastsong/crazycar/mapper/EquipMapper.java b/CrazyCarServer/src/main/java/com/tastsong/crazycar/mapper/EquipMapper.java
index e8da08b9d..1059591fe 100644
--- a/CrazyCarServer/src/main/java/com/tastsong/crazycar/mapper/EquipMapper.java
+++ b/CrazyCarServer/src/main/java/com/tastsong/crazycar/mapper/EquipMapper.java
@@ -1,7 +1,5 @@
 package com.tastsong.crazycar.mapper;
 
-import java.util.List;
-
 import com.baomidou.mybatisplus.core.mapper.BaseMapper;
 import com.tastsong.crazycar.model.EquipModel;
 
diff --git a/CrazyCarServer/src/main/java/com/tastsong/crazycar/mapper/MatchRecordMapper.java b/CrazyCarServer/src/main/java/com/tastsong/crazycar/mapper/MatchRecordMapper.java
index 3ee10bde5..5c9936d34 100644
--- a/CrazyCarServer/src/main/java/com/tastsong/crazycar/mapper/MatchRecordMapper.java
+++ b/CrazyCarServer/src/main/java/com/tastsong/crazycar/mapper/MatchRecordMapper.java
@@ -4,7 +4,6 @@
 
 import com.baomidou.mybatisplus.core.mapper.BaseMapper;
 import com.tastsong.crazycar.dto.resp.RespDataStatistics;
-import com.tastsong.crazycar.dto.resp.RespMatchRank;
 import com.tastsong.crazycar.model.MatchRecordModel;
 import org.apache.ibatis.annotations.Param;
 import org.apache.ibatis.annotations.Select;
diff --git a/CrazyCarServer/src/main/java/com/tastsong/crazycar/mapper/VersionMapper.java b/CrazyCarServer/src/main/java/com/tastsong/crazycar/mapper/VersionMapper.java
index 70d4269b9..d82387f1c 100644
--- a/CrazyCarServer/src/main/java/com/tastsong/crazycar/mapper/VersionMapper.java
+++ b/CrazyCarServer/src/main/java/com/tastsong/crazycar/mapper/VersionMapper.java
@@ -1,7 +1,5 @@
 package com.tastsong.crazycar.mapper;
 
-import java.util.List;
-
 import com.baomidou.mybatisplus.core.mapper.BaseMapper;
 import com.tastsong.crazycar.model.VersionModel;
 
diff --git a/CrazyCarServer/src/main/java/com/tastsong/crazycar/model/AdminUserModel.java b/CrazyCarServer/src/main/java/com/tastsong/crazycar/model/AdminUserModel.java
index ee3d512a5..25ba2e1ab 100644
--- a/CrazyCarServer/src/main/java/com/tastsong/crazycar/model/AdminUserModel.java
+++ b/CrazyCarServer/src/main/java/com/tastsong/crazycar/model/AdminUserModel.java
@@ -1,10 +1,8 @@
 package com.tastsong.crazycar.model;
 
 import com.baomidou.mybatisplus.annotation.IdType;
-import com.baomidou.mybatisplus.annotation.TableField;
 import com.baomidou.mybatisplus.annotation.TableId;
 import com.baomidou.mybatisplus.annotation.TableName;
-import com.fasterxml.jackson.annotation.JsonProperty;
 import lombok.AllArgsConstructor;
 import lombok.Data;
 import lombok.NoArgsConstructor;
diff --git a/CrazyCarServer/src/main/java/com/tastsong/crazycar/model/AssetsUpdatingModel.java b/CrazyCarServer/src/main/java/com/tastsong/crazycar/model/AssetsUpdatingModel.java
index 96f1c2611..c871c33a1 100644
--- a/CrazyCarServer/src/main/java/com/tastsong/crazycar/model/AssetsUpdatingModel.java
+++ b/CrazyCarServer/src/main/java/com/tastsong/crazycar/model/AssetsUpdatingModel.java
@@ -1,7 +1,6 @@
 package com.tastsong.crazycar.model;
 
 import com.baomidou.mybatisplus.annotation.IdType;
-import com.baomidou.mybatisplus.annotation.TableField;
 import com.baomidou.mybatisplus.annotation.TableId;
 import com.baomidou.mybatisplus.annotation.TableName;
 import com.fasterxml.jackson.annotation.JsonProperty;
diff --git a/CrazyCarServer/src/main/java/com/tastsong/crazycar/model/AvatarModel.java b/CrazyCarServer/src/main/java/com/tastsong/crazycar/model/AvatarModel.java
index 2c60c0ede..9afc6492d 100644
--- a/CrazyCarServer/src/main/java/com/tastsong/crazycar/model/AvatarModel.java
+++ b/CrazyCarServer/src/main/java/com/tastsong/crazycar/model/AvatarModel.java
@@ -3,7 +3,6 @@
 import com.baomidou.mybatisplus.annotation.IdType;
 import com.baomidou.mybatisplus.annotation.TableId;
 import com.baomidou.mybatisplus.annotation.TableName;
-import com.fasterxml.jackson.annotation.JsonProperty;
 import lombok.AllArgsConstructor;
 import lombok.Data;
 import lombok.NoArgsConstructor;
diff --git a/CrazyCarServer/src/main/java/com/tastsong/crazycar/model/AvatarRecordModel.java b/CrazyCarServer/src/main/java/com/tastsong/crazycar/model/AvatarRecordModel.java
index 3f8c05a2c..e2bdf5c88 100644
--- a/CrazyCarServer/src/main/java/com/tastsong/crazycar/model/AvatarRecordModel.java
+++ b/CrazyCarServer/src/main/java/com/tastsong/crazycar/model/AvatarRecordModel.java
@@ -3,7 +3,6 @@
 import com.baomidou.mybatisplus.annotation.IdType;
 import com.baomidou.mybatisplus.annotation.TableId;
 import com.baomidou.mybatisplus.annotation.TableName;
-import com.fasterxml.jackson.annotation.JsonProperty;
 import lombok.AllArgsConstructor;
 import lombok.Data;
 import lombok.NoArgsConstructor;
diff --git a/CrazyCarServer/src/main/java/com/tastsong/crazycar/model/EquipRecordModel.java b/CrazyCarServer/src/main/java/com/tastsong/crazycar/model/EquipRecordModel.java
index ba0eae6b4..ec293f749 100644
--- a/CrazyCarServer/src/main/java/com/tastsong/crazycar/model/EquipRecordModel.java
+++ b/CrazyCarServer/src/main/java/com/tastsong/crazycar/model/EquipRecordModel.java
@@ -3,7 +3,6 @@
 import com.baomidou.mybatisplus.annotation.IdType;
 import com.baomidou.mybatisplus.annotation.TableId;
 import com.baomidou.mybatisplus.annotation.TableName;
-import com.fasterxml.jackson.annotation.JsonProperty;
 import lombok.AllArgsConstructor;
 import lombok.Data;
 import lombok.NoArgsConstructor;
diff --git a/CrazyCarServer/src/main/java/com/tastsong/crazycar/model/MatchClassModel.java b/CrazyCarServer/src/main/java/com/tastsong/crazycar/model/MatchClassModel.java
index efb28bb50..c19095087 100644
--- a/CrazyCarServer/src/main/java/com/tastsong/crazycar/model/MatchClassModel.java
+++ b/CrazyCarServer/src/main/java/com/tastsong/crazycar/model/MatchClassModel.java
@@ -3,7 +3,6 @@
 import com.baomidou.mybatisplus.annotation.IdType;
 import com.baomidou.mybatisplus.annotation.TableId;
 import com.baomidou.mybatisplus.annotation.TableName;
-import com.fasterxml.jackson.annotation.JsonProperty;
 import lombok.AllArgsConstructor;
 import lombok.Data;
 import lombok.NoArgsConstructor;
diff --git a/CrazyCarServer/src/main/java/com/tastsong/crazycar/model/MatchMapModel.java b/CrazyCarServer/src/main/java/com/tastsong/crazycar/model/MatchMapModel.java
index 6e79e0986..a90e98184 100644
--- a/CrazyCarServer/src/main/java/com/tastsong/crazycar/model/MatchMapModel.java
+++ b/CrazyCarServer/src/main/java/com/tastsong/crazycar/model/MatchMapModel.java
@@ -3,7 +3,6 @@
 import com.baomidou.mybatisplus.annotation.IdType;
 import com.baomidou.mybatisplus.annotation.TableId;
 import com.baomidou.mybatisplus.annotation.TableName;
-import com.fasterxml.jackson.annotation.JsonProperty;
 import lombok.AllArgsConstructor;
 import lombok.Data;
 import lombok.NoArgsConstructor;
diff --git a/CrazyCarServer/src/main/java/com/tastsong/crazycar/model/TimeTrialClassModel.java b/CrazyCarServer/src/main/java/com/tastsong/crazycar/model/TimeTrialClassModel.java
index 757f44bdb..926f0b1ed 100644
--- a/CrazyCarServer/src/main/java/com/tastsong/crazycar/model/TimeTrialClassModel.java
+++ b/CrazyCarServer/src/main/java/com/tastsong/crazycar/model/TimeTrialClassModel.java
@@ -3,7 +3,6 @@
 import com.baomidou.mybatisplus.annotation.IdType;
 import com.baomidou.mybatisplus.annotation.TableId;
 import com.baomidou.mybatisplus.annotation.TableName;
-import com.fasterxml.jackson.annotation.JsonProperty;
 import lombok.AllArgsConstructor;
 import lombok.Data;
 import lombok.NoArgsConstructor;
diff --git a/CrazyCarServer/src/main/java/com/tastsong/crazycar/model/UserLoginRecordModel.java b/CrazyCarServer/src/main/java/com/tastsong/crazycar/model/UserLoginRecordModel.java
index f9fef5490..938ccd7ba 100644
--- a/CrazyCarServer/src/main/java/com/tastsong/crazycar/model/UserLoginRecordModel.java
+++ b/CrazyCarServer/src/main/java/com/tastsong/crazycar/model/UserLoginRecordModel.java
@@ -3,7 +3,6 @@
 import com.baomidou.mybatisplus.annotation.IdType;
 import com.baomidou.mybatisplus.annotation.TableId;
 import com.baomidou.mybatisplus.annotation.TableName;
-import com.fasterxml.jackson.annotation.JsonProperty;
 import lombok.AllArgsConstructor;
 import lombok.Data;
 import lombok.NoArgsConstructor;
diff --git a/CrazyCarServer/src/main/java/com/tastsong/crazycar/model/VersionModel.java b/CrazyCarServer/src/main/java/com/tastsong/crazycar/model/VersionModel.java
index f5bb61767..f94b17855 100644
--- a/CrazyCarServer/src/main/java/com/tastsong/crazycar/model/VersionModel.java
+++ b/CrazyCarServer/src/main/java/com/tastsong/crazycar/model/VersionModel.java
@@ -3,7 +3,6 @@
 import com.baomidou.mybatisplus.annotation.IdType;
 import com.baomidou.mybatisplus.annotation.TableId;
 import com.baomidou.mybatisplus.annotation.TableName;
-import com.fasterxml.jackson.annotation.JsonProperty;
 import lombok.AllArgsConstructor;
 import lombok.Data;
 import lombok.NoArgsConstructor;
diff --git a/CrazyCarServer/src/main/java/com/tastsong/crazycar/service/BackgroundUserService.java b/CrazyCarServer/src/main/java/com/tastsong/crazycar/service/BackgroundUserService.java
index b7ab91e74..51466c833 100644
--- a/CrazyCarServer/src/main/java/com/tastsong/crazycar/service/BackgroundUserService.java
+++ b/CrazyCarServer/src/main/java/com/tastsong/crazycar/service/BackgroundUserService.java
@@ -4,9 +4,7 @@
 
 import cn.hutool.core.util.ObjUtil;
 import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
-import com.baomidou.mybatisplus.core.conditions.update.UpdateWrapper;
 import com.tastsong.crazycar.dto.req.ReqCreateAdminUser;
-import lombok.extern.slf4j.Slf4j;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 
@@ -16,7 +14,6 @@
 import cn.hutool.json.JSONArray;
 import cn.hutool.json.JSONUtil;
 
-@Slf4j
 @Service
 public class BackgroundUserService {
     @Autowired
diff --git a/CrazyCarServer/src/main/java/com/tastsong/crazycar/service/EquipService.java b/CrazyCarServer/src/main/java/com/tastsong/crazycar/service/EquipService.java
index 288ee09d6..043662ea2 100644
--- a/CrazyCarServer/src/main/java/com/tastsong/crazycar/service/EquipService.java
+++ b/CrazyCarServer/src/main/java/com/tastsong/crazycar/service/EquipService.java
@@ -6,7 +6,6 @@
 import cn.hutool.core.date.DateUtil;
 import cn.hutool.core.util.ObjUtil;
 import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
-import com.baomidou.mybatisplus.core.conditions.update.UpdateWrapper;
 import com.tastsong.crazycar.dto.req.ReqUpdateEquip;
 import com.tastsong.crazycar.dto.resp.RespEquip;
 import com.tastsong.crazycar.mapper.EquipRecordMapper;
diff --git a/CrazyCarServer/src/main/java/com/tastsong/crazycar/service/MatchRecordService.java b/CrazyCarServer/src/main/java/com/tastsong/crazycar/service/MatchRecordService.java
index d0837399c..de3b89abf 100644
--- a/CrazyCarServer/src/main/java/com/tastsong/crazycar/service/MatchRecordService.java
+++ b/CrazyCarServer/src/main/java/com/tastsong/crazycar/service/MatchRecordService.java
@@ -3,13 +3,10 @@
 import java.util.ArrayList;
 import java.util.List;
 
-import cn.hutool.core.date.DateUtil;
 import cn.hutool.core.util.ObjUtil;
 import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
-import com.tastsong.crazycar.dto.resp.RespDataStatistics;
 import com.tastsong.crazycar.dto.resp.RespMatchRank;
 import com.tastsong.crazycar.model.*;
-import org.apache.ibatis.annotations.Select;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 
diff --git a/CrazyCarServer/src/main/java/com/tastsong/crazycar/service/TimeTrialClassService.java b/CrazyCarServer/src/main/java/com/tastsong/crazycar/service/TimeTrialClassService.java
index 6d8c864aa..d7a3c5625 100644
--- a/CrazyCarServer/src/main/java/com/tastsong/crazycar/service/TimeTrialClassService.java
+++ b/CrazyCarServer/src/main/java/com/tastsong/crazycar/service/TimeTrialClassService.java
@@ -8,7 +8,6 @@
 import com.tastsong.crazycar.dto.resp.RespTimeTrialClass;
 import com.tastsong.crazycar.mapper.TimeTrialClassMapper;
 import com.tastsong.crazycar.mapper.TimeTrialClassRecordMapper;
-import com.tastsong.crazycar.model.AvatarRecordModel;
 import com.tastsong.crazycar.model.TimeTrialClassModel;
 import com.tastsong.crazycar.model.TimeTrialClassRecordModel;
 import lombok.extern.slf4j.Slf4j;
diff --git a/CrazyCarServer/src/main/java/com/tastsong/crazycar/service/UserService.java b/CrazyCarServer/src/main/java/com/tastsong/crazycar/service/UserService.java
index af2cd5c13..5a0d8912d 100644
--- a/CrazyCarServer/src/main/java/com/tastsong/crazycar/service/UserService.java
+++ b/CrazyCarServer/src/main/java/com/tastsong/crazycar/service/UserService.java
@@ -4,7 +4,6 @@
 import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
 import com.tastsong.crazycar.dto.req.ReqUpdateUser;
 import com.tastsong.crazycar.mapper.UserMapper;
-import com.tastsong.crazycar.model.UserLoginRecordModel;
 import com.tastsong.crazycar.model.UserModel;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;