refactor(controller): 调整导入顺序并添加参数校验

src/main/java/com/yolo/keyborad/controller/CharacterController.java

@@ -3,7 +3,9 @@ package com.yolo.keyborad.controller;
 import cn.dev33.satoken.stp.StpUtil;
 import cn.hutool.core.bean.BeanUtil;
 import com.yolo.keyborad.common.BaseResponse;
+import com.yolo.keyborad.common.ErrorCode;
 import com.yolo.keyborad.common.ResultUtils;
+import com.yolo.keyborad.exception.BusinessException;
 import com.yolo.keyborad.model.dto.userCharacter.KeyboardUserCharacterAddDTO;
 import com.yolo.keyborad.model.dto.userCharacter.KeyboardUserCharacterDTO;
 import com.yolo.keyborad.model.dto.userCharacter.KeyboardUserCharacterSortUpdateDTO;
@@ -22,6 +24,7 @@ import org.springframework.ai.chat.model.ChatModel;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.web.bind.annotation.*;
 
+import javax.validation.constraints.NotNull;
 import java.util.List;
 
 /*

src/main/java/com/yolo/keyborad/service/impl/UserServiceImpl.java

@@ -72,7 +72,6 @@ public class UserServiceImpl extends ServiceImpl<KeyboardUserMapper, KeyboardUse
 
     @Override
     public KeyboardUserRespVO login(UserLoginDTO userLoginDTO) {
-        userLoginDTO.setPassword(userLoginDTO.getPassword());
         KeyboardUser keyboardUser = keyboardUserMapper.selectOne(
                 new LambdaQueryWrapper<KeyboardUser>()
                         .eq(KeyboardUser::getEmail, userLoginDTO.getMail())