diff --git a/backend/pmd-rules.xml b/backend/pmd-rules.xml
index 4fe6859..f275bd0 100644
--- a/backend/pmd-rules.xml
+++ b/backend/pmd-rules.xml
@@ -9,9 +9,11 @@
     </description>
     <rule ref="category/java/bestpractices.xml">
         <exclude name="GuardLogStatement"/>
+        <exclude name="AvoidReassigningParameters"/>
     </rule>
     <rule ref="category/java/errorprone.xml">
         <exclude name="AvoidLiteralsInIfCondition"/>
-    </rule>
+        <exclude name="AvoidDuplicateLiterals"/>
 
-</ruleset>
+    </rule>
+</ruleset>
\ No newline at end of file
diff --git a/backend/src/main/java/com/zl/mjga/component/DepartmentOperatorTool.java b/backend/src/main/java/com/zl/mjga/component/DepartmentOperatorTool.java
index d92beef..551d033 100644
--- a/backend/src/main/java/com/zl/mjga/component/DepartmentOperatorTool.java
+++ b/backend/src/main/java/com/zl/mjga/component/DepartmentOperatorTool.java
@@ -11,6 +11,7 @@ import org.apache.commons.lang3.StringUtils;
 import org.jooq.generated.mjga.tables.pojos.Department;
 import org.springframework.stereotype.Component;
 
+@SuppressWarnings("PMD.AvoidDuplicateLiterals")
 @Description("和部门管理有关的操作工具")
 @RequiredArgsConstructor
 @Component
diff --git a/backend/src/main/java/com/zl/mjga/component/PositionOperatorTool.java b/backend/src/main/java/com/zl/mjga/component/PositionOperatorTool.java
index 26943eb..0615397 100644
--- a/backend/src/main/java/com/zl/mjga/component/PositionOperatorTool.java
+++ b/backend/src/main/java/com/zl/mjga/component/PositionOperatorTool.java
@@ -9,6 +9,7 @@ import lombok.RequiredArgsConstructor;
 import org.jooq.generated.mjga.tables.pojos.Position;
 import org.springframework.stereotype.Component;
 
+@SuppressWarnings("PMD.AvoidDuplicateLiterals")
 @Description("和岗位管理有关的操作工具")
 @RequiredArgsConstructor
 @Component
diff --git a/backend/src/main/java/com/zl/mjga/component/UserRolePermissionOperatorTool.java b/backend/src/main/java/com/zl/mjga/component/UserRolePermissionOperatorTool.java
index 0a9a324..6e9bc1d 100644
--- a/backend/src/main/java/com/zl/mjga/component/UserRolePermissionOperatorTool.java
+++ b/backend/src/main/java/com/zl/mjga/component/UserRolePermissionOperatorTool.java
@@ -18,6 +18,7 @@ import org.jooq.generated.mjga.tables.pojos.*;
 import org.springframework.stereotype.Component;
 
 @Description("和用户管理有关的操作工具")
+@SuppressWarnings("PMD.AvoidDuplicateLiterals")
 @RequiredArgsConstructor
 @Component
 public class UserRolePermissionOperatorTool {
diff --git a/backend/src/main/java/com/zl/mjga/controller/IdentityAccessController.java b/backend/src/main/java/com/zl/mjga/controller/IdentityAccessController.java
index 0e381ff..e16d759 100644
--- a/backend/src/main/java/com/zl/mjga/controller/IdentityAccessController.java
+++ b/backend/src/main/java/com/zl/mjga/controller/IdentityAccessController.java
@@ -66,9 +66,6 @@ public class IdentityAccessController {
   @PreAuthorize("hasAuthority(T(com.zl.mjga.model.urp.EPermission).WRITE_USER_ROLE_PERMISSION)")
   @DeleteMapping("/user")
   void deleteUser(@RequestParam Long userId) {
-    if (userId == 1) {
-      throw new BusinessException("演示系统不允许操作管理员角色");
-    }
     userRepository.deleteById(userId);
   }
 
@@ -81,9 +78,6 @@ public class IdentityAccessController {
   @PreAuthorize("hasAuthority(T(com.zl.mjga.model.urp.EPermission).WRITE_USER_ROLE_PERMISSION)")
   @DeleteMapping("/role")
   void deleteRole(@RequestParam Long roleId) {
-    if (roleId == 1) {
-      throw new BusinessException("演示系统不允许删除管理员角色");
-    }
     roleRepository.deleteById(roleId);
   }
 
@@ -102,9 +96,6 @@ public class IdentityAccessController {
   @PreAuthorize("hasAuthority(T(com.zl.mjga.model.urp.EPermission).WRITE_USER_ROLE_PERMISSION)")
   @DeleteMapping("/permission")
   void deletePermission(@RequestParam Long permissionId) {
-    if (permissionId < 10) {
-      throw new BusinessException("演示系统不允许删除原有权限");
-    }
     permissionRepository.deleteById(permissionId);
   }
 
diff --git a/backend/src/test/java/com/zl/mjga/integration/mvc/JacksonAnnotationMvcTest.java b/backend/src/test/java/com/zl/mjga/integration/mvc/JacksonAnnotationMvcTest.java
index a0723df..0eecf94 100644
--- a/backend/src/test/java/com/zl/mjga/integration/mvc/JacksonAnnotationMvcTest.java
+++ b/backend/src/test/java/com/zl/mjga/integration/mvc/JacksonAnnotationMvcTest.java
@@ -46,7 +46,7 @@ public class JacksonAnnotationMvcTest {
     stubUserRolePermissionDto.setUsername(stubUsername);
     stubUserRolePermissionDto.setPassword(stubPassword);
     when(identityAccessService.pageQueryUser(
-            PageRequestDto.of(1, 5), new UserQueryDto(stubUsername)))
+            PageRequestDto.of(1, 5), new UserQueryDto(stubUsername, null, null)))
         .thenReturn(new PageResponseDto<>(1, List.of(stubUserRolePermissionDto)));
     mockMvc
         .perform(
diff --git a/backend/src/test/java/com/zl/mjga/integration/mvc/UserRolePermissionMvcTest.java b/backend/src/test/java/com/zl/mjga/integration/mvc/UserRolePermissionMvcTest.java
index 3ad73b1..a0164c5 100644
--- a/backend/src/test/java/com/zl/mjga/integration/mvc/UserRolePermissionMvcTest.java
+++ b/backend/src/test/java/com/zl/mjga/integration/mvc/UserRolePermissionMvcTest.java
@@ -59,7 +59,7 @@ class UserRolePermissionMvcTest {
   @Test
   @WithMockUser
   void deleteUser_givenValidHttpRequest_shouldSucceedWith200() throws Exception {
-    Long stubUserId = 1L;
+    Long stubUserId = 2L;
     mockMvc
         .perform(
             delete(String.format("/iam/user?userId=%s", stubUserId))
@@ -152,7 +152,7 @@ class UserRolePermissionMvcTest {
     stubUserRolePermissionDto.setId(1L);
     stubUserRolePermissionDto.setUsername(stubUsername);
     when(identityAccessService.pageQueryUser(
-            PageRequestDto.of(1, 5), new UserQueryDto(stubUsername)))
+            PageRequestDto.of(1, 5), new UserQueryDto(stubUsername, null, null)))
         .thenReturn(new PageResponseDto<>(1, List.of(stubUserRolePermissionDto)));
     mockMvc
         .perform(
diff --git a/backend/src/test/java/com/zl/mjga/integration/persistence/SortByDALTest.java b/backend/src/test/java/com/zl/mjga/integration/persistence/SortByDALTest.java
index 536f6fc..2d17d41 100644
--- a/backend/src/test/java/com/zl/mjga/integration/persistence/SortByDALTest.java
+++ b/backend/src/test/java/com/zl/mjga/integration/persistence/SortByDALTest.java
@@ -32,7 +32,7 @@ public class SortByDALTest extends AbstractDataAccessLayerTest {
         "INSERT INTO mjga.user (id, username,password) VALUES (3, 'testC','qFVVFvPqs291k10')",
       })
   void userPageFetchWithNoSort() {
-    UserQueryDto rbacQueryDto = new UserQueryDto("test");
+    UserQueryDto rbacQueryDto = new UserQueryDto("test", null, null);
     Result<Record> records = userRepository.pageFetchBy(PageRequestDto.of(1, 10), rbacQueryDto);
     assertThat(records.get(0).get(USER.ID)).isEqualTo(1);
     assertThat(records.get(1).get(USER.ID)).isEqualTo(2);
@@ -48,7 +48,7 @@ public class SortByDALTest extends AbstractDataAccessLayerTest {
         "INSERT INTO mjga.user (id, username,password) VALUES (4, 'testD','3')",
       })
   void userPageFetchWithSort() {
-    UserQueryDto rbacQueryDto = new UserQueryDto("test");
+    UserQueryDto rbacQueryDto = new UserQueryDto("test", null, null);
     HashMap<String, PageRequestDto.Direction> sortByIdDesc = new HashMap<>();
     sortByIdDesc.put("id", PageRequestDto.Direction.DESC);
     Result<Record> records =
diff --git a/backend/src/test/java/com/zl/mjga/integration/persistence/UserRolePermissionDALTest.java b/backend/src/test/java/com/zl/mjga/integration/persistence/UserRolePermissionDALTest.java
index c094b44..9981a9f 100644
--- a/backend/src/test/java/com/zl/mjga/integration/persistence/UserRolePermissionDALTest.java
+++ b/backend/src/test/java/com/zl/mjga/integration/persistence/UserRolePermissionDALTest.java
@@ -96,7 +96,7 @@ public class UserRolePermissionDALTest extends AbstractDataAccessLayerTest {
         "INSERT INTO mjga.user (id, username,password) VALUES (2, 'testB','NTjRCeUq2EqCy')",
       })
   void user_pageFetchBy() {
-    UserQueryDto rbacQueryDto = new UserQueryDto("test");
+    UserQueryDto rbacQueryDto = new UserQueryDto("test", null, null);
     Result<Record> records = userRepository.pageFetchBy(PageRequestDto.of(1, 10), rbacQueryDto);
     assertThat(records.size()).isEqualTo(2);
 
diff --git a/backend/src/test/java/com/zl/mjga/unit/UserRolePermissionUnitTest.java b/backend/src/test/java/com/zl/mjga/unit/UserRolePermissionUnitTest.java
index bd8ffd5..eecc127 100644
--- a/backend/src/test/java/com/zl/mjga/unit/UserRolePermissionUnitTest.java
+++ b/backend/src/test/java/com/zl/mjga/unit/UserRolePermissionUnitTest.java
@@ -143,7 +143,7 @@ class UserRolePermissionUnitTest {
     // action
     PageResponseDto<List<UserRolePermissionDto>> result =
         identityAccessService.pageQueryUser(
-            PageRequestDto.of(1, 10), new UserQueryDto(stubUserName2));
+            PageRequestDto.of(1, 10), new UserQueryDto(stubUserName2, null, null));
 
     // assert
     List<UserRolePermissionDto> userRolePermissionDtoList = result.getData();
@@ -173,7 +173,7 @@ class UserRolePermissionUnitTest {
         .thenReturn(mockResult);
     PageResponseDto<List<UserRolePermissionDto>> result =
         identityAccessService.pageQueryUser(
-            PageRequestDto.of(1, 10), new UserQueryDto("agydCO1Yi99a"));
+            PageRequestDto.of(1, 10), new UserQueryDto("agydCO1Yi99a", null, null));
     assertThat(result.getTotal()).isEqualTo(0);
     assertThat(result.getData()).isNull();
   }