diff --git a/backend/src/main/java/io/metersphere/performance/parse/xml/reader/jmx/JmeterDocumentParser.java b/backend/src/main/java/io/metersphere/performance/parse/xml/reader/jmx/JmeterDocumentParser.java
index 34a683f4b0..52f204b3aa 100644
--- a/backend/src/main/java/io/metersphere/performance/parse/xml/reader/jmx/JmeterDocumentParser.java
+++ b/backend/src/main/java/io/metersphere/performance/parse/xml/reader/jmx/JmeterDocumentParser.java
@@ -100,26 +100,13 @@ public class JmeterDocumentParser implements DocumentParser {
                         processCheckoutBackendListener(ele);
                         processCheckoutAutoStopListener(ele);
                     } else if (nodeNameEquals(ele, CONCURRENCY_THREAD_GROUP)) {
-                        processThreadGroup(ele);
+                        processThreadType(ele);
                         processThreadGroupName(ele);
                         processCheckoutTimer(ele);
                     } else if (nodeNameEquals(ele, VARIABLE_THROUGHPUT_TIMER)) {
                         processVariableThroughputTimer(ele);
                     } else if (nodeNameEquals(ele, THREAD_GROUP)) {
-                        Object threadType = context.getProperty("threadType");
-                        if (threadType instanceof List) {
-                            Object o = ((List<?>) threadType).get(0);
-                            ((List<?>) threadType).remove(0);
-                            if ("DURATION".equals(o)) {
-                                processThreadGroup(ele);
-                            }
-                            if ("ITERATION".equals(o)) {
-                                processIterationThreadGroup(ele);
-                            }
-                        } else {
-                            processThreadGroup(ele);
-                        }
-
+                        processThreadType(ele);
                         processThreadGroupName(ele);
                         processCheckoutTimer(ele);
                     } else if (nodeNameEquals(ele, BACKEND_LISTENER)) {
@@ -147,6 +134,22 @@ public class JmeterDocumentParser implements DocumentParser {
         }
     }
 
+    private void processThreadType(Element ele) {
+        Object threadType = context.getProperty("threadType");
+        if (threadType instanceof List) {
+            Object o = ((List<?>) threadType).get(0);
+            ((List<?>) threadType).remove(0);
+            if ("DURATION".equals(o)) {
+                processThreadGroup(ele);
+            }
+            if ("ITERATION".equals(o)) {
+                processIterationThreadGroup(ele);
+            }
+        } else {
+            processThreadGroup(ele);
+        }
+    }
+
     private void processAutoStopListener(Element autoStopListener) {
         Object autoStopDelays = context.getProperty("autoStopDelay");
         String autoStopDelay = "30";
@@ -695,6 +698,10 @@ public class JmeterDocumentParser implements DocumentParser {
     }
 
     private void processBaseThreadGroup(Element threadGroup) {
+        Document document = threadGroup.getOwnerDocument();
+        document.renameNode(threadGroup, threadGroup.getNamespaceURI(), THREAD_GROUP);
+        threadGroup.setAttribute("guiclass", THREAD_GROUP + "Gui");
+        threadGroup.setAttribute("testclass", THREAD_GROUP);
         /*
         <ThreadGroup guiclass="ThreadGroupGui" testclass="ThreadGroup" testname="登录" enabled="true">
         <stringProp name="ThreadGroup.on_sample_error">continue</stringProp>
@@ -711,7 +718,6 @@ public class JmeterDocumentParser implements DocumentParser {
       </ThreadGroup>
          */
         removeChildren(threadGroup);
-        Document document = threadGroup.getOwnerDocument();
         Object targetLevels = context.getProperty("TargetLevel");
         String threads = "10";
         if (targetLevels instanceof List) {
@@ -893,6 +899,10 @@ public class JmeterDocumentParser implements DocumentParser {
     }
 
     private void processIterationThreadGroup(Element threadGroup) {
+        Document document = threadGroup.getOwnerDocument();
+        document.renameNode(threadGroup, threadGroup.getNamespaceURI(), THREAD_GROUP);
+        threadGroup.setAttribute("guiclass", THREAD_GROUP + "Gui");
+        threadGroup.setAttribute("testclass", THREAD_GROUP);
         // 检查 threadgroup 后面的hashtree是否为空
         Node hashTree = threadGroup.getNextSibling();
         while (!(hashTree instanceof Element)) {
@@ -901,8 +911,6 @@ public class JmeterDocumentParser implements DocumentParser {
         if (!hashTree.hasChildNodes()) {
             MSException.throwException(Translator.get("jmx_content_valid"));
         }
-        // 重命名 tagName
-        Document document = threadGroup.getOwnerDocument();
         removeChildren(threadGroup);
 
         // 选择按照迭代次数处理线程组
diff --git a/backend/src/main/java/io/metersphere/service/FileService.java b/backend/src/main/java/io/metersphere/service/FileService.java
index 74c095bc0f..b0f574b6be 100644
--- a/backend/src/main/java/io/metersphere/service/FileService.java
+++ b/backend/src/main/java/io/metersphere/service/FileService.java
@@ -3,7 +3,6 @@ package io.metersphere.service;
 import io.metersphere.base.domain.*;
 import io.metersphere.base.mapper.FileContentMapper;
 import io.metersphere.base.mapper.FileMetadataMapper;
-import io.metersphere.base.mapper.LoadTestFileMapper;
 import io.metersphere.base.mapper.TestCaseFileMapper;
 import io.metersphere.commons.constants.FileType;
 import io.metersphere.commons.exception.MSException;
@@ -27,8 +26,6 @@ public class FileService {
     @Resource
     private FileMetadataMapper fileMetadataMapper;
     @Resource
-    private LoadTestFileMapper loadTestFileMapper;
-    @Resource
     private FileContentMapper fileContentMapper;
     @Resource
     private TestCaseFileMapper testCaseFileMapper;
@@ -61,23 +58,10 @@ public class FileService {
         FileContentExample example2 = new FileContentExample();
         example2.createCriteria().andFileIdIn(ids);
         fileContentMapper.deleteByExample(example2);
-
-        LoadTestFileExample example3 = new LoadTestFileExample();
-        example3.createCriteria().andFileIdIn(ids);
-        loadTestFileMapper.deleteByExample(example3);
     }
 
     public void deleteFileRelatedByIds(List<String> ids) {
-        if (CollectionUtils.isEmpty(ids)) {
-            return;
-        }
-        FileMetadataExample example = new FileMetadataExample();
-        example.createCriteria().andIdIn(ids);
-        fileMetadataMapper.deleteByExample(example);
-
-        FileContentExample example2 = new FileContentExample();
-        example2.createCriteria().andFileIdIn(ids);
-        fileContentMapper.deleteByExample(example2);
+        deleteFileByIds(ids);
     }
 
     public FileMetadata saveFile(MultipartFile file, String projectId, String fileId) {