diff --git a/electrmangnetic-backup/src/main/java/com/electromagnetic/industry/software/backup/controller/FileController.java b/electrmangnetic-backup/src/main/java/com/electromagnetic/industry/software/backup/controller/FileController.java
index 525e7c0..dc02b23 100644
--- a/electrmangnetic-backup/src/main/java/com/electromagnetic/industry/software/backup/controller/FileController.java
+++ b/electrmangnetic-backup/src/main/java/com/electromagnetic/industry/software/backup/controller/FileController.java
@@ -44,12 +44,11 @@ public class FileController {
         JSONConfig jsonConfig = JSONConfig.create();
         jsonConfig.setDateFormat("yyyy-MM-dd HH:mm:ss");
         backupFileResLog.setBackupEndTime(new Date());
-        StringBuffer info = new StringBuffer()
-                .append("\n")
-                .append("#")
-                .append("\n")
-                .append(JSONUtil.toJsonStr(backupFileResLog, jsonConfig));
-        FileUtil.appendUtf8String(info.toString(), backupPro.getLogPath());
+        String info = "\n" +
+                "#" +
+                "\n" +
+                JSONUtil.toJsonStr(backupFileResLog, jsonConfig);
+        FileUtil.appendUtf8String(info, backupPro.getLogPath());
         return ElectromagneticResultUtil.success(JSONUtil.toJsonStr(backupFileResLog, jsonConfig));
     }
 
@@ -83,12 +82,11 @@ public class FileController {
         JSONConfig jsonConfig = JSONConfig.create();
         jsonConfig.setDateFormat("yyyy-MM-dd HH:mm:ss");
         backupFileResLog.setBackupEndTime(new Date());
-        StringBuffer info = new StringBuffer()
-                .append("\n")
-                .append("#")
-                .append("\n")
-                .append(JSONUtil.toJsonStr(backupFileResLog, jsonConfig));
-        FileUtil.appendUtf8String(info.toString(), backupPro.getLogPath());
+        String info = "\n" +
+                "#" +
+                "\n" +
+                JSONUtil.toJsonStr(backupFileResLog, jsonConfig);
+        FileUtil.appendUtf8String(info, backupPro.getLogPath());
         return ElectromagneticResultUtil.success(JSONUtil.toJsonStr(backupFileResLog, jsonConfig));
     }
 }
diff --git a/electrmangnetic/src/main/java/com/electromagnetic/industry/software/manage/config/ElePropertyConfig.java b/electrmangnetic/src/main/java/com/electromagnetic/industry/software/manage/config/ElePropertyConfig.java
index 4b0cb38..d81acf9 100644
--- a/electrmangnetic/src/main/java/com/electromagnetic/industry/software/manage/config/ElePropertyConfig.java
+++ b/electrmangnetic/src/main/java/com/electromagnetic/industry/software/manage/config/ElePropertyConfig.java
@@ -217,5 +217,4 @@ public class ElePropertyConfig {
     }
 
 
-
 }
diff --git a/electrmangnetic/src/main/java/com/electromagnetic/industry/software/manage/service/EdFileFavoriteService.java b/electrmangnetic/src/main/java/com/electromagnetic/industry/software/manage/service/EdFileFavoriteService.java
index fa33798..cd9997c 100644
--- a/electrmangnetic/src/main/java/com/electromagnetic/industry/software/manage/service/EdFileFavoriteService.java
+++ b/electrmangnetic/src/main/java/com/electromagnetic/industry/software/manage/service/EdFileFavoriteService.java
@@ -12,6 +12,6 @@ public interface EdFileFavoriteService extends IService<EdFileFavorite> {
      * @param fileId
      * @return
      */
-    public boolean logicRemove(String userId, String fileId);
+    boolean logicRemove(String userId, String fileId);
 
 }
diff --git a/electrmangnetic/src/main/java/com/electromagnetic/industry/software/manage/service/ImportTableService.java b/electrmangnetic/src/main/java/com/electromagnetic/industry/software/manage/service/ImportTableService.java
index da4709c..c529c9c 100644
--- a/electrmangnetic/src/main/java/com/electromagnetic/industry/software/manage/service/ImportTableService.java
+++ b/electrmangnetic/src/main/java/com/electromagnetic/industry/software/manage/service/ImportTableService.java
@@ -5,7 +5,6 @@ import com.electromagnetic.industry.software.common.resp.ElectromagneticResult;
 import com.electromagnetic.industry.software.manage.pojo.models.ImportTableInfo;
 import com.electromagnetic.industry.software.manage.pojo.req.DownloadImportTableDataDTO;
 import jakarta.servlet.http.HttpServletResponse;
-import org.springframework.core.io.InputStreamResource;
 import org.springframework.http.ResponseEntity;
 
 import java.util.Map;
diff --git a/electrmangnetic/src/main/java/com/electromagnetic/industry/software/manage/service/serviceimpl/FileRecycleServiceImpl.java b/electrmangnetic/src/main/java/com/electromagnetic/industry/software/manage/service/serviceimpl/FileRecycleServiceImpl.java
index d20be08..66edaea 100644
--- a/electrmangnetic/src/main/java/com/electromagnetic/industry/software/manage/service/serviceimpl/FileRecycleServiceImpl.java
+++ b/electrmangnetic/src/main/java/com/electromagnetic/industry/software/manage/service/serviceimpl/FileRecycleServiceImpl.java
@@ -136,8 +136,7 @@ public class FileRecycleServiceImpl implements FileRecycleService {
                 .eq(EdFileInfo::getFileId, fileId));
         for (EdFileInfo edFileInfo : edFileInfos) {
             String fileSysPath = commonService.getFileSysPath(edFileInfo.getId());
-            if (!EleCommonUtil.isWinOs())
-            {
+            if (!EleCommonUtil.isWinOs()) {
                 backupHandler.backupFiles(fileSysPath);
             }
             String fileDbPath = commonService.getDbPath(edFileInfo.getFilePath());
diff --git a/electrmangnetic/src/main/java/com/electromagnetic/industry/software/manage/service/serviceimpl/ImportTableServiceImpl.java b/electrmangnetic/src/main/java/com/electromagnetic/industry/software/manage/service/serviceimpl/ImportTableServiceImpl.java
index 4205834..83de5ee 100644
--- a/electrmangnetic/src/main/java/com/electromagnetic/industry/software/manage/service/serviceimpl/ImportTableServiceImpl.java
+++ b/electrmangnetic/src/main/java/com/electromagnetic/industry/software/manage/service/serviceimpl/ImportTableServiceImpl.java
@@ -1,27 +1,20 @@
 package com.electromagnetic.industry.software.manage.service.serviceimpl;
 
 import cn.hutool.core.bean.BeanUtil;
-import cn.hutool.core.codec.Base64;
 import cn.hutool.core.collection.CollUtil;
-import cn.hutool.core.io.FileUtil;
-import cn.hutool.core.lang.Assert;
 import cn.hutool.core.text.StrFormatter;
 import cn.hutool.json.JSONUtil;
-import com.alibaba.druid.sql.visitor.functions.Char;
 import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
 import com.baomidou.mybatisplus.core.toolkit.Wrappers;
 import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
 import com.electromagnetic.industry.software.common.enums.EffectFlagEnum;
-import com.electromagnetic.industry.software.common.exception.BizException;
 import com.electromagnetic.industry.software.common.pojo.RespPageVO;
 import com.electromagnetic.industry.software.common.resp.ElectromagneticResult;
 import com.electromagnetic.industry.software.common.util.EleCommonUtil;
 import com.electromagnetic.industry.software.common.util.ElectromagneticResultUtil;
 import com.electromagnetic.industry.software.common.util.IdWorker;
-import com.electromagnetic.industry.software.common.util.UserThreadLocal;
 import com.electromagnetic.industry.software.manage.mapper.ImportTableDataMapper;
 import com.electromagnetic.industry.software.manage.mapper.ImportTableInfoMapper;
-import com.electromagnetic.industry.software.manage.pojo.models.ImportFileInfo;
 import com.electromagnetic.industry.software.manage.pojo.models.ImportTableData;
 import com.electromagnetic.industry.software.manage.pojo.models.ImportTableInfo;
 import com.electromagnetic.industry.software.manage.pojo.req.DownloadImportTableDataDTO;
@@ -30,15 +23,12 @@ import com.electromagnetic.industry.software.manage.service.ImportTableService;
 import jakarta.annotation.Resource;
 import jakarta.servlet.http.HttpServletResponse;
 import lombok.extern.slf4j.Slf4j;
-import org.springframework.core.io.FileSystemResource;
-import org.springframework.core.io.InputStreamResource;
 import org.springframework.http.HttpHeaders;
 import org.springframework.http.MediaType;
 import org.springframework.http.ResponseEntity;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 
-import java.io.File;
 import java.nio.charset.Charset;
 import java.util.HashMap;
 import java.util.List;
@@ -163,7 +153,7 @@ public class ImportTableServiceImpl implements ImportTableService {
 
         if (CollUtil.isEmpty(importTableData)) {
             return ResponseEntity.ok()
-                    .header(HttpHeaders.CONTENT_DISPOSITION,attachement)
+                    .header(HttpHeaders.CONTENT_DISPOSITION, attachement)
                     .contentType(MediaType.APPLICATION_OCTET_STREAM)
                     .contentLength(0)
                     .body("".getBytes());
@@ -176,7 +166,7 @@ public class ImportTableServiceImpl implements ImportTableService {
         map.put("data", importTableData);
         byte[] data = JSONUtil.toJsonStr(map).getBytes(Charset.defaultCharset());
         return ResponseEntity.ok()
-                .header(HttpHeaders.CONTENT_DISPOSITION,attachement)
+                .header(HttpHeaders.CONTENT_DISPOSITION, attachement)
                 .contentType(MediaType.APPLICATION_OCTET_STREAM)
                 .contentLength(data.length)
                 .body(data);
diff --git a/electrmangnetic/src/main/java/com/electromagnetic/industry/software/manage/service/serviceimpl/UserAccessLogServiceImpl.java b/electrmangnetic/src/main/java/com/electromagnetic/industry/software/manage/service/serviceimpl/UserAccessLogServiceImpl.java
index 6f2381b..01c9584 100644
--- a/electrmangnetic/src/main/java/com/electromagnetic/industry/software/manage/service/serviceimpl/UserAccessLogServiceImpl.java
+++ b/electrmangnetic/src/main/java/com/electromagnetic/industry/software/manage/service/serviceimpl/UserAccessLogServiceImpl.java
@@ -75,7 +75,7 @@ public class UserAccessLogServiceImpl extends ServiceImpl<UserAccessLogMapper, U
             Set<String> operationObjSet = new HashSet<>();
             Set<String> userIdSet = userMapper.selectList(Wrappers.<User>lambdaQuery().select(User::getId).like(User::getUserName, pars.getKeyWord())).stream().map(User::getId).collect(Collectors.toSet());
             for (UserOperationModuleEnum e : UserOperationModuleEnum.values()) {
-                if (e.desc.contains(pars.getKeyWord())){
+                if (e.desc.contains(pars.getKeyWord())) {
                     operationObjSet.add(e.key);
                 }
             }
diff --git a/electromagnetic-common/src/main/java/com/electromagnetic/industry/software/common/util/EleCommonUtil.java b/electromagnetic-common/src/main/java/com/electromagnetic/industry/software/common/util/EleCommonUtil.java
index 8916b00..9be46ea 100644
--- a/electromagnetic-common/src/main/java/com/electromagnetic/industry/software/common/util/EleCommonUtil.java
+++ b/electromagnetic-common/src/main/java/com/electromagnetic/industry/software/common/util/EleCommonUtil.java
@@ -90,7 +90,7 @@ public final class EleCommonUtil {
         String tmpPath = filePath + ".tmp";
         try (
                 InputStream inputStream = Files.newInputStream(Paths.get(filePath));
-                OutputStream outputStream = Files.newOutputStream(Paths.get(tmpPath));
+                OutputStream outputStream = Files.newOutputStream(Paths.get(tmpPath))
         ) {
             if (encrypt) {
                 aes.encrypt(inputStream, outputStream, true);
diff --git a/electromagnetic-common/src/main/java/com/electromagnetic/industry/software/common/util/IdWorker.java b/electromagnetic-common/src/main/java/com/electromagnetic/industry/software/common/util/IdWorker.java
index ceb9047..c237849 100644
--- a/electromagnetic-common/src/main/java/com/electromagnetic/industry/software/common/util/IdWorker.java
+++ b/electromagnetic-common/src/main/java/com/electromagnetic/industry/software/common/util/IdWorker.java
@@ -25,7 +25,7 @@ public class IdWorker {
     // 时间毫秒左移22位
     private final static long timestampLeftShift = sequenceBits + workerIdBits + datacenterIdBits;
     private final static long sequenceMask = -1L ^ (-1L << sequenceBits);
-    private static IdWorker idWorker = new IdWorker();
+    private static final IdWorker idWorker = new IdWorker();
     /* 上次生产id时间戳 */
     private static long lastTimestamp = -1L;
     private final long workerId;
diff --git a/electromagnetic-common/src/main/java/com/electromagnetic/industry/software/common/util/SignUtils.java b/electromagnetic-common/src/main/java/com/electromagnetic/industry/software/common/util/SignUtils.java
index 693cb92..2f9b2a5 100644
--- a/electromagnetic-common/src/main/java/com/electromagnetic/industry/software/common/util/SignUtils.java
+++ b/electromagnetic-common/src/main/java/com/electromagnetic/industry/software/common/util/SignUtils.java
@@ -2,6 +2,7 @@ package com.electromagnetic.industry.software.common.util;
 
 import lombok.extern.slf4j.Slf4j;
 
+import java.nio.charset.StandardCharsets;
 import java.security.MessageDigest;
 
 @Slf4j
@@ -17,7 +18,7 @@ public class SignUtils {
         try {
             MessageDigest md = MessageDigest.getInstance("MD5");
             md.reset();
-            md.update(str.getBytes("UTF-8"));
+            md.update(str.getBytes(StandardCharsets.UTF_8));
             byte[] byteArray = md.digest();
             StringBuffer md5StrBuff = new StringBuffer();
             for (int i = 0; i < byteArray.length; i++) {