diff --git a/.idea/workspace.xml b/.idea/workspace.xml
index d38745b..188fe38 100644
--- a/.idea/workspace.xml
+++ b/.idea/workspace.xml
@@ -1,57 +1,50 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
-    <component name="AutoImportSettings">
-        <option name="autoReloadType" value="SELECTIVE" />
-    </component>
-    <component name="ChangeListManager">
-        <list default="true" id="f008fe30-0711-42e2-bb33-17dcfdbad387" name="Changes" comment="pom">
-            <change beforePath="$PROJECT_DIR$/.idea/workspace.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/workspace.xml" afterDir="false" />
-            <change beforePath="$PROJECT_DIR$/src/main/java/com/example/myproject/controller/PromotionController.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/com/example/myproject/controller/PromotionController.java" afterDir="false" />
-            <change beforePath="$PROJECT_DIR$/src/main/java/com/example/myproject/mapper/PromotionMapper.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/com/example/myproject/mapper/PromotionMapper.java" afterDir="false" />
-            <change beforePath="$PROJECT_DIR$/src/main/java/com/example/myproject/service/serviceImpl/PromotionServiceImpl.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/com/example/myproject/service/serviceImpl/PromotionServiceImpl.java" afterDir="false" />
-            <change beforePath="$PROJECT_DIR$/src/main/java/com/example/myproject/service/serviceImpl/TorrentServiceImpl.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/com/example/myproject/service/serviceImpl/TorrentServiceImpl.java" afterDir="false" />
-            <change beforePath="$PROJECT_DIR$/target/classes/com/example/myproject/mapper/PromotionMapper.class" beforeDir="false" afterPath="$PROJECT_DIR$/target/classes/com/example/myproject/mapper/PromotionMapper.class" afterDir="false" />
-            <change beforePath="$PROJECT_DIR$/target/classes/com/example/myproject/service/serviceImpl/PromotionServiceImpl.class" beforeDir="false" afterPath="$PROJECT_DIR$/target/classes/com/example/myproject/service/serviceImpl/PromotionServiceImpl.class" afterDir="false" />
-            <change beforePath="$PROJECT_DIR$/target/classes/com/example/myproject/service/serviceImpl/TorrentServiceImpl.class" beforeDir="false" afterPath="$PROJECT_DIR$/target/classes/com/example/myproject/service/serviceImpl/TorrentServiceImpl.class" afterDir="false" />
-        </list>
-        <option name="SHOW_DIALOG" value="false" />
-        <option name="HIGHLIGHT_CONFLICTS" value="true" />
-        <option name="HIGHLIGHT_NON_ACTIVE_CHANGELIST" value="false" />
-        <option name="LAST_RESOLUTION" value="IGNORE" />
-    </component>
-    <component name="FileTemplateManagerImpl">
-        <option name="RECENT_TEMPLATES">
-            <list>
-                <option value="Class" />
-            </list>
-        </option>
-    </component>
-    <component name="Git.Settings">
-        <option name="RECENT_GIT_ROOT_PATH" value="$PROJECT_DIR$" />
-        <option name="ROOT_SYNC" value="SYNC" />
-    </component>
-    <component name="HighlightingSettingsPerFile">
-        <setting file="file://$PROJECT_DIR$/src/main/java/com/example/myproject/config/WebConfig.java" root0="FORCE_HIGHLIGHTING" />
-        <setting file="file://$PROJECT_DIR$/src/main/java/com/example/myproject/service/PostService.java" root0="FORCE_HIGHLIGHTING" />
-    </component>
-    <component name="MarkdownSettingsMigration">
-        <option name="stateVersion" value="1" />
-    </component>
-    <component name="ProblemsViewState">
-        <option name="selectedTabId" value="CurrentFile" />
-    </component>
-    <component name="ProjectColorInfo">{
+  <component name="AutoImportSettings">
+    <option name="autoReloadType" value="SELECTIVE" />
+  </component>
+  <component name="ChangeListManager">
+    <list default="true" id="f008fe30-0711-42e2-bb33-17dcfdbad387" name="Changes" comment="pom">
+      <change beforePath="$PROJECT_DIR$/.idea/workspace.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/workspace.xml" afterDir="false" />
+    </list>
+    <option name="SHOW_DIALOG" value="false" />
+    <option name="HIGHLIGHT_CONFLICTS" value="true" />
+    <option name="HIGHLIGHT_NON_ACTIVE_CHANGELIST" value="false" />
+    <option name="LAST_RESOLUTION" value="IGNORE" />
+  </component>
+  <component name="FileTemplateManagerImpl">
+    <option name="RECENT_TEMPLATES">
+      <list>
+        <option value="Class" />
+      </list>
+    </option>
+  </component>
+  <component name="Git.Settings">
+    <option name="RECENT_GIT_ROOT_PATH" value="$PROJECT_DIR$" />
+    <option name="ROOT_SYNC" value="SYNC" />
+  </component>
+  <component name="HighlightingSettingsPerFile">
+    <setting file="file://$PROJECT_DIR$/src/main/java/com/example/myproject/config/WebConfig.java" root0="FORCE_HIGHLIGHTING" />
+    <setting file="file://$PROJECT_DIR$/src/main/java/com/example/myproject/service/PostService.java" root0="FORCE_HIGHLIGHTING" />
+  </component>
+  <component name="MarkdownSettingsMigration">
+    <option name="stateVersion" value="1" />
+  </component>
+  <component name="ProblemsViewState">
+    <option name="selectedTabId" value="CurrentFile" />
+  </component>
+  <component name="ProjectColorInfo">{
         &quot;associatedIndex&quot;: 0
         }</component>
-    <component name="ProjectId" id="2vZNfNTEFyHApdxmHZ7Y0rlJjKB" />
-    <component name="ProjectLevelVcsManager" settingsEditedManually="true">
-        <ConfirmationsSetting value="2" id="Add" />
-    </component>
-    <component name="ProjectViewState">
-        <option name="hideEmptyMiddlePackages" value="true" />
-        <option name="showLibraryContents" value="true" />
-    </component>
-    <component name="PropertiesComponent">{
+  <component name="ProjectId" id="2vZNfNTEFyHApdxmHZ7Y0rlJjKB" />
+  <component name="ProjectLevelVcsManager" settingsEditedManually="true">
+    <ConfirmationsSetting value="2" id="Add" />
+  </component>
+  <component name="ProjectViewState">
+    <option name="hideEmptyMiddlePackages" value="true" />
+    <option name="showLibraryContents" value="true" />
+  </component>
+  <component name="PropertiesComponent">{
         &quot;keyToString&quot;: {
         &quot;ASKED_ADD_EXTERNAL_FILES&quot;: &quot;true&quot;,
         &quot;JUnit.UserControllerTest.executor&quot;: &quot;Run&quot;,
@@ -83,201 +76,201 @@
         ]
         }
         }</component>
-    <component name="RecentsManager">
-        <key name="CopyFile.RECENT_KEYS">
-            <recent name="D:\Desktop\echo后端\echo-backend\images" />
-            <recent name="D:\Desktop\echo后端\echo-backend\uploads\dynamic" />
-            <recent name="D:\PT\echo-backend\src\main\java\com\example\myproject\config" />
-            <recent name="D:\PT\echo-backend\src\main\java\com\example\myproject\service" />
-            <recent name="D:\PT\echo-backend\src\main\java\com\example\myproject\controller" />
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-        <key name="MoveFile.RECENT_KEYS">
-            <recent name="D:\study\学习资源\大三下\school\echo-backend\src\main\resources\mapper" />
-        </key>
-    </component>
-    <component name="RunManager" selected="应用程序.MyProjectApplication">
-        <configuration name="MyProjectApplication" type="Application" factoryName="Application" temporary="true">
-            <option name="MAIN_CLASS_NAME" value="com.example.myproject.MyProjectApplication" />
-            <module name="echo-backend" />
-            <extension name="coverage">
-                <pattern>
-                    <option name="PATTERN" value="com.example.myproject.*" />
-                    <option name="ENABLED" value="true" />
-                </pattern>
-            </extension>
-            <method v="2">
-                <option name="Make" enabled="true" />
-            </method>
-        </configuration>
-        <configuration name="MyProjectApplication" type="Application" factoryName="Application" temporary="true" nameIsGenerated="true">
-            <option name="MAIN_CLASS_NAME" value="com.example.myproject.MyProjectApplication" />
-            <module name="echo-backend" />
-            <extension name="coverage">
-                <pattern>
-                    <option name="PATTERN" value="com.example.myproject.*" />
-                    <option name="ENABLED" value="true" />
-                </pattern>
-            </extension>
-            <method v="2">
-                <option name="Make" enabled="true" />
-            </method>
-        </configuration>
-        <configuration name="TorrentControllerTest" type="JUnit" factoryName="JUnit" temporary="true" nameIsGenerated="true">
-            <module name="echo-backend" />
-            <extension name="coverage">
-                <pattern>
-                    <option name="PATTERN" value="com.example.myproject.controller.*" />
-                    <option name="ENABLED" value="true" />
-                </pattern>
-            </extension>
-            <option name="PACKAGE_NAME" value="com.example.myproject.controller" />
-            <option name="MAIN_CLASS_NAME" value="com.example.myproject.controller.TorrentControllerTest" />
-            <option name="TEST_OBJECT" value="class" />
-            <method v="2">
-                <option name="Make" enabled="true" />
-            </method>
-        </configuration>
-        <configuration name="UserControllerTest" type="JUnit" factoryName="JUnit" temporary="true" nameIsGenerated="true">
-            <module name="echo-backend" />
-            <extension name="coverage">
-                <pattern>
-                    <option name="PATTERN" value="com.example.myproject.controller.*" />
-                    <option name="ENABLED" value="true" />
-                </pattern>
-            </extension>
-            <option name="PACKAGE_NAME" value="com.example.myproject.controller" />
-            <option name="MAIN_CLASS_NAME" value="com.example.myproject.controller.UserControllerTest" />
-            <option name="TEST_OBJECT" value="class" />
-            <method v="2">
-                <option name="Make" enabled="true" />
-            </method>
-        </configuration>
-        <configuration name="UserControllerTest.testUpdateUserAvatar" type="JUnit" factoryName="JUnit" temporary="true" nameIsGenerated="true">
-            <module name="echo-backend" />
-            <extension name="coverage">
-                <pattern>
-                    <option name="PATTERN" value="com.example.myproject.controller.*" />
-                    <option name="ENABLED" value="true" />
-                </pattern>
-            </extension>
-            <option name="PACKAGE_NAME" value="com.example.myproject.controller" />
-            <option name="MAIN_CLASS_NAME" value="com.example.myproject.controller.UserControllerTest" />
-            <option name="METHOD_NAME" value="testUpdateUserAvatar" />
-            <option name="TEST_OBJECT" value="method" />
-            <method v="2">
-                <option name="Make" enabled="true" />
-            </method>
-        </configuration>
-        <configuration name="UserControllerTest.testUploadUserAvatar" type="JUnit" factoryName="JUnit" temporary="true" nameIsGenerated="true">
-            <module name="echo-backend" />
-            <extension name="coverage">
-                <pattern>
-                    <option name="PATTERN" value="com.example.myproject.controller.*" />
-                    <option name="ENABLED" value="true" />
-                </pattern>
-            </extension>
-            <option name="PACKAGE_NAME" value="com.example.myproject.controller" />
-            <option name="MAIN_CLASS_NAME" value="com.example.myproject.controller.UserControllerTest" />
-            <option name="METHOD_NAME" value="testUploadUserAvatar" />
-            <option name="TEST_OBJECT" value="method" />
-            <method v="2">
-                <option name="Make" enabled="true" />
-            </method>
-        </configuration>
-        <configuration name="MyProjectApplication" type="SpringBootApplicationConfigurationType" factoryName="Spring Boot" nameIsGenerated="true">
-            <module name="echo-backend" />
-            <option name="SPRING_BOOT_MAIN_CLASS" value="com.example.myproject.MyProjectApplication" />
-            <method v="2">
-                <option name="Make" enabled="true" />
-            </method>
-        </configuration>
-        <recent_temporary>
-            <list>
-                <item itemvalue="应用程序.MyProjectApplication" />
-                <item itemvalue="JUnit.UserControllerTest.testUploadUserAvatar" />
-                <item itemvalue="JUnit.UserControllerTest.testUpdateUserAvatar" />
-                <item itemvalue="JUnit.UserControllerTest" />
-                <item itemvalue="JUnit.TorrentControllerTest" />
-            </list>
-        </recent_temporary>
-    </component>
-    <component name="SpellCheckerSettings" RuntimeDictionaries="0" Folders="0" CustomDictionaries="0" DefaultDictionary="application-level" UseSingleDictionary="true" transferred="true" />
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-        <task active="true" id="Default" summary="Default task">
-            <changelist id="f008fe30-0711-42e2-bb33-17dcfdbad387" name="Changes" comment="" />
-            <created>1744348740342</created>
-            <option name="number" value="Default" />
-            <option name="presentableId" value="Default" />
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-    </component>
-    <component name="Vcs.Log.Tabs.Properties">
-        <option name="TAB_STATES">
-            <map>
-                <entry key="MAIN">
+  <component name="RecentsManager">
+    <key name="CopyFile.RECENT_KEYS">
+      <recent name="D:\Desktop\echo后端\echo-backend\images" />
+      <recent name="D:\Desktop\echo后端\echo-backend\uploads\dynamic" />
+      <recent name="D:\PT\echo-backend\src\main\java\com\example\myproject\config" />
+      <recent name="D:\PT\echo-backend\src\main\java\com\example\myproject\service" />
+      <recent name="D:\PT\echo-backend\src\main\java\com\example\myproject\controller" />
+    </key>
+    <key name="MoveFile.RECENT_KEYS">
+      <recent name="D:\study\学习资源\大三下\school\echo-backend\src\main\resources\mapper" />
+    </key>
+  </component>
+  <component name="RunManager" selected="应用程序.MyProjectApplication">
+    <configuration name="MyProjectApplication" type="Application" factoryName="Application" temporary="true">
+      <option name="MAIN_CLASS_NAME" value="com.example.myproject.MyProjectApplication" />
+      <module name="echo-backend" />
+      <extension name="coverage">
+        <pattern>
+          <option name="PATTERN" value="com.example.myproject.*" />
+          <option name="ENABLED" value="true" />
+        </pattern>
+      </extension>
+      <method v="2">
+        <option name="Make" enabled="true" />
+      </method>
+    </configuration>
+    <configuration name="MyProjectApplication" type="Application" factoryName="Application" temporary="true" nameIsGenerated="true">
+      <option name="MAIN_CLASS_NAME" value="com.example.myproject.MyProjectApplication" />
+      <module name="echo-backend" />
+      <extension name="coverage">
+        <pattern>
+          <option name="PATTERN" value="com.example.myproject.*" />
+          <option name="ENABLED" value="true" />
+        </pattern>
+      </extension>
+      <method v="2">
+        <option name="Make" enabled="true" />
+      </method>
+    </configuration>
+    <configuration name="TorrentControllerTest" type="JUnit" factoryName="JUnit" temporary="true" nameIsGenerated="true">
+      <module name="echo-backend" />
+      <extension name="coverage">
+        <pattern>
+          <option name="PATTERN" value="com.example.myproject.controller.*" />
+          <option name="ENABLED" value="true" />
+        </pattern>
+      </extension>
+      <option name="PACKAGE_NAME" value="com.example.myproject.controller" />
+      <option name="MAIN_CLASS_NAME" value="com.example.myproject.controller.TorrentControllerTest" />
+      <option name="TEST_OBJECT" value="class" />
+      <method v="2">
+        <option name="Make" enabled="true" />
+      </method>
+    </configuration>
+    <configuration name="UserControllerTest" type="JUnit" factoryName="JUnit" temporary="true" nameIsGenerated="true">
+      <module name="echo-backend" />
+      <extension name="coverage">
+        <pattern>
+          <option name="PATTERN" value="com.example.myproject.controller.*" />
+          <option name="ENABLED" value="true" />
+        </pattern>
+      </extension>
+      <option name="PACKAGE_NAME" value="com.example.myproject.controller" />
+      <option name="MAIN_CLASS_NAME" value="com.example.myproject.controller.UserControllerTest" />
+      <option name="TEST_OBJECT" value="class" />
+      <method v="2">
+        <option name="Make" enabled="true" />
+      </method>
+    </configuration>
+    <configuration name="UserControllerTest.testUpdateUserAvatar" type="JUnit" factoryName="JUnit" temporary="true" nameIsGenerated="true">
+      <module name="echo-backend" />
+      <extension name="coverage">
+        <pattern>
+          <option name="PATTERN" value="com.example.myproject.controller.*" />
+          <option name="ENABLED" value="true" />
+        </pattern>
+      </extension>
+      <option name="PACKAGE_NAME" value="com.example.myproject.controller" />
+      <option name="MAIN_CLASS_NAME" value="com.example.myproject.controller.UserControllerTest" />
+      <option name="METHOD_NAME" value="testUpdateUserAvatar" />
+      <option name="TEST_OBJECT" value="method" />
+      <method v="2">
+        <option name="Make" enabled="true" />
+      </method>
+    </configuration>
+    <configuration name="UserControllerTest.testUploadUserAvatar" type="JUnit" factoryName="JUnit" temporary="true" nameIsGenerated="true">
+      <module name="echo-backend" />
+      <extension name="coverage">
+        <pattern>
+          <option name="PATTERN" value="com.example.myproject.controller.*" />
+          <option name="ENABLED" value="true" />
+        </pattern>
+      </extension>
+      <option name="PACKAGE_NAME" value="com.example.myproject.controller" />
+      <option name="MAIN_CLASS_NAME" value="com.example.myproject.controller.UserControllerTest" />
+      <option name="METHOD_NAME" value="testUploadUserAvatar" />
+      <option name="TEST_OBJECT" value="method" />
+      <method v="2">
+        <option name="Make" enabled="true" />
+      </method>
+    </configuration>
+    <configuration name="MyProjectApplication" type="SpringBootApplicationConfigurationType" factoryName="Spring Boot" nameIsGenerated="true">
+      <module name="echo-backend" />
+      <option name="SPRING_BOOT_MAIN_CLASS" value="com.example.myproject.MyProjectApplication" />
+      <method v="2">
+        <option name="Make" enabled="true" />
+      </method>
+    </configuration>
+    <recent_temporary>
+      <list>
+        <item itemvalue="应用程序.MyProjectApplication" />
+        <item itemvalue="JUnit.UserControllerTest.testUploadUserAvatar" />
+        <item itemvalue="JUnit.UserControllerTest.testUpdateUserAvatar" />
+        <item itemvalue="JUnit.UserControllerTest" />
+        <item itemvalue="JUnit.TorrentControllerTest" />
+      </list>
+    </recent_temporary>
+  </component>
+  <component name="SpellCheckerSettings" RuntimeDictionaries="0" Folders="0" CustomDictionaries="0" DefaultDictionary="application-level" UseSingleDictionary="true" transferred="true" />
+  <component name="TaskManager">
+    <task active="true" id="Default" summary="Default task">
+      <changelist id="f008fe30-0711-42e2-bb33-17dcfdbad387" name="Changes" comment="" />
+      <created>1744348740342</created>
+      <option name="number" value="Default" />
+      <option name="presentableId" value="Default" />
+      <updated>1744348740342</updated>
+      <workItem from="1749007243227" duration="1245000" />
+      <workItem from="1749033374884" duration="7535000" />
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+      <option name="closed" value="true" />
+      <created>1749011916131</created>
+      <option name="number" value="00001" />
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+      <option name="project" value="LOCAL" />
+      <updated>1749011916131</updated>
+    </task>
+    <task id="LOCAL-00002" summary="pom">
+      <option name="closed" value="true" />
+      <created>1749012141761</created>
+      <option name="number" value="00002" />
+      <option name="presentableId" value="LOCAL-00002" />
+      <option name="project" value="LOCAL" />
+      <updated>1749012141761</updated>
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+    <option name="localTasksCounter" value="3" />
+    <servers />
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+    <option name="version" value="3" />
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+  <component name="Vcs.Log.Tabs.Properties">
+    <option name="TAB_STATES">
+      <map>
+        <entry key="MAIN">
+          <value>
+            <State>
+              <option name="FILTERS">
+                <map>
+                  <entry key="branch">
                     <value>
-                        <State>
-                            <option name="FILTERS">
-                                <map>
-                                    <entry key="branch">
-                                        <value>
-                                            <list>
-                                                <option value="master" />
-                                            </list>
-                                        </value>
-                                    </entry>
-                                </map>
-                            </option>
-                        </State>
+                      <list>
+                        <option value="master" />
+                      </list>
                     </value>
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-    <component name="VcsManagerConfiguration">
-        <option name="ADD_EXTERNAL_FILES_SILENTLY" value="true" />
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-        <breakpoint-manager>
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-                        <option name="EMULATED" value="true" />
-                        <option name="WATCH_EXIT" value="false" />
-                    </properties>
-                    <option name="timeStamp" value="1" />
-                </line-breakpoint>
-            </breakpoints>
-        </breakpoint-manager>
-    </component>
+                  </entry>
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+            </State>
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+      </map>
+    </option>
+  </component>
+  <component name="VcsManagerConfiguration">
+    <option name="ADD_EXTERNAL_FILES_SILENTLY" value="true" />
+    <MESSAGE value="pom" />
+    <option name="LAST_COMMIT_MESSAGE" value="pom" />
+  </component>
+  <component name="XDebuggerManager">
+    <breakpoint-manager>
+      <breakpoints>
+        <line-breakpoint enabled="true" type="java-method">
+          <url>file://$PROJECT_DIR$/src/test/java/com/example/myproject/controller/UserControllerTest.java</url>
+          <line>235</line>
+          <properties class="com.example.myproject.controller.UserControllerTest" method="testUploadUserAvatar">
+            <option name="EMULATED" value="true" />
+            <option name="WATCH_EXIT" value="false" />
+          </properties>
+          <option name="timeStamp" value="1" />
+        </line-breakpoint>
+      </breakpoints>
+    </breakpoint-manager>
+  </component>
 </project>
\ No newline at end of file