diff --git a/.idea/dbnavigator.xml b/.idea/dbnavigator.xml
index bd22aef..054b2d0 100644
--- a/.idea/dbnavigator.xml
+++ b/.idea/dbnavigator.xml
@@ -523,4 +523,7 @@
       </environment>
     </general-settings>
   </component>
+  <component name="DBNavigator.Project.StatementExecutionManager">
+    <execution-variables />
+  </component>
 </project>
\ No newline at end of file
diff --git a/.idea/workspace.xml b/.idea/workspace.xml
index 0d5980a..ae3ef3f 100644
--- a/.idea/workspace.xml
+++ b/.idea/workspace.xml
@@ -4,7 +4,40 @@
     <option name="autoReloadType" value="SELECTIVE" />
   </component>
   <component name="ChangeListManager">
-    <list default="true" id="f008fe30-0711-42e2-bb33-17dcfdbad387" name="Changes" comment="" />
+    <list default="true" id="f008fe30-0711-42e2-bb33-17dcfdbad387" name="Changes" comment="">
+      <change beforePath="$PROJECT_DIR$/.idea/dbnavigator.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/dbnavigator.xml" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/.idea/workspace.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/workspace.xml" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/create.sql" beforeDir="false" />
+      <change beforePath="$PROJECT_DIR$/pom.xml" beforeDir="false" afterPath="$PROJECT_DIR$/pom.xml" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/src/main/java/com/example/myproject/MyProjectApplication.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/com/example/myproject/MyProjectApplication.java" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/src/main/java/com/example/myproject/common/base/Result.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/com/example/myproject/common/base/Result.java" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/src/main/java/com/example/myproject/config/MyMetaObjectHandler.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/com/example/myproject/config/MyMetaObjectHandler.java" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/src/main/java/com/example/myproject/controller/InviteController.java" beforeDir="false" />
+      <change beforePath="$PROJECT_DIR$/src/main/java/com/example/myproject/controller/UserController.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/com/example/myproject/controller/UserController.java" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/src/main/java/com/example/myproject/dto/param/InviteParam.java" beforeDir="false" />
+      <change beforePath="$PROJECT_DIR$/src/main/java/com/example/myproject/dto/param/TorrentUploadParam.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/com/example/myproject/dto/param/TorrentUploadParam.java" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/src/main/java/com/example/myproject/entity/EntityBase.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/com/example/myproject/entity/EntityBase.java" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/src/main/java/com/example/myproject/entity/InvitationEntity.java" beforeDir="false" />
+      <change beforePath="$PROJECT_DIR$/src/main/java/com/example/myproject/entity/User.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/com/example/myproject/entity/User.java" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/src/main/java/com/example/myproject/mapper/InvitationMapper.java" beforeDir="false" />
+      <change beforePath="$PROJECT_DIR$/src/main/java/com/example/myproject/mapper/UserMapper.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/com/example/myproject/mapper/UserMapper.java" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/src/main/java/com/example/myproject/service/InvitationService.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/com/example/myproject/service/InvitationService.java" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/src/main/java/com/example/myproject/service/UserService.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/com/example/myproject/service/UserService.java" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/src/main/java/com/example/myproject/service/serviceImpl/InvitationServiceImpl.java" beforeDir="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="$PROJECT_DIR$/src/main/resources/application.properties" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/resources/application.properties" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/src/main/resources/mapper/PromotionMapper.xml" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/resources/mapper/PromotionMapper.xml" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/src/test/java/com/example/myproject/controller/TorrentControllerTest.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/test/java/com/example/myproject/controller/TorrentControllerTest.java" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/src/test/java/com/example/myproject/controller/UserControllerTest.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/test/java/com/example/myproject/controller/UserControllerTest.java" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/target/classes/application.properties" beforeDir="false" afterPath="$PROJECT_DIR$/target/classes/application.properties" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/target/classes/com/example/myproject/MyProjectApplication.class" beforeDir="false" afterPath="$PROJECT_DIR$/target/classes/com/example/myproject/MyProjectApplication.class" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/target/classes/com/example/myproject/controller/UserController$EmailRequest.class" beforeDir="false" afterPath="$PROJECT_DIR$/target/classes/com/example/myproject/controller/UserController$EmailRequest.class" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/target/classes/com/example/myproject/controller/UserController$VerificationRequest.class" beforeDir="false" afterPath="$PROJECT_DIR$/target/classes/com/example/myproject/controller/UserController$VerificationRequest.class" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/target/classes/com/example/myproject/controller/UserController.class" beforeDir="false" afterPath="$PROJECT_DIR$/target/classes/com/example/myproject/controller/UserController.class" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/target/classes/com/example/myproject/entity/User.class" beforeDir="false" afterPath="$PROJECT_DIR$/target/classes/com/example/myproject/entity/User.class" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/target/classes/com/example/myproject/mapper/UserMapper.class" beforeDir="false" afterPath="$PROJECT_DIR$/target/classes/com/example/myproject/mapper/UserMapper.class" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/target/classes/com/example/myproject/utils/Result.class" beforeDir="false" />
+    </list>
     <option name="SHOW_DIALOG" value="false" />
     <option name="HIGHLIGHT_CONFLICTS" value="true" />
     <option name="HIGHLIGHT_NON_ACTIVE_CHANGELIST" value="false" />
@@ -30,23 +63,102 @@
       </MavenImportingSettings>
     </option>
   </component>
+  <component name="ProblemsViewState">
+    <option name="selectedTabId" value="CurrentFile" />
+  </component>
   <component name="ProjectId" id="2vZNfNTEFyHApdxmHZ7Y0rlJjKB" />
   <component name="ProjectLevelVcsManager" settingsEditedManually="true" />
   <component name="ProjectViewState">
     <option name="hideEmptyMiddlePackages" value="true" />
     <option name="showLibraryContents" value="true" />
   </component>
-  <component name="PropertiesComponent"><![CDATA[{
-  "keyToString": {
-    "RunOnceActivity.OpenProjectViewOnStart": "true",
-    "RunOnceActivity.ShowReadmeOnStart": "true"
+  <component name="PropertiesComponent">{
+  &quot;keyToString&quot;: {
+    &quot;RunOnceActivity.OpenProjectViewOnStart&quot;: &quot;true&quot;,
+    &quot;RunOnceActivity.ShowReadmeOnStart&quot;: &quot;true&quot;,
+    &quot;last_opened_file_path&quot;: &quot;D:/study/学习资源/大三下/zy1&quot;
   }
-}]]></component>
+}</component>
   <component name="RecentsManager">
     <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="BtClient" type="Application" factoryName="Application" temporary="true" nameIsGenerated="true">
+      <option name="MAIN_CLASS_NAME" value="com.example.myproject.client.BtClient" />
+      <module name="echo-backend" />
+      <extension name="coverage">
+        <pattern>
+          <option name="PATTERN" value="com.example.myproject.client.*" />
+          <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">
+      <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="TrackerServer" type="Application" factoryName="Application" temporary="true" nameIsGenerated="true">
+      <option name="MAIN_CLASS_NAME" value="com.example.myproject.tracker.TrackerServer" />
+      <module name="echo-backend" />
+      <extension name="coverage">
+        <pattern>
+          <option name="PATTERN" value="com.example.myproject.tracker.*" />
+          <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>
+    <recent_temporary>
+      <list>
+        <item itemvalue="应用程序.MyProjectApplication" />
+        <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">