diff --git a/src/main/java/com/example/demo/Util/SecurityUtils.java b/src/main/java/com/example/demo/Util/SecurityUtils.java
new file mode 100644
index 0000000..bb69883
--- /dev/null
+++ b/src/main/java/com/example/demo/Util/SecurityUtils.java
@@ -0,0 +1,55 @@
+package com.example.demo.Util;
+
+import com.example.demo.domain.entity.Admin;
+import org.springframework.security.core.Authentication;
+import org.springframework.security.core.context.SecurityContextHolder;
+
+import java.util.Arrays;
+import java.util.List;
+
+/**
+ * 安全服务工具类
+ */
+public class SecurityUtils {
+
+    //用户ID
+    public static Integer getUserId() {
+        try {
+            return getLoginUser().getId();
+        } catch (Exception e) {
+            throw new RuntimeException("获取用户ID异常", e);
+        }
+    }
+
+    //获取用户地区信息
+    public static List<String> getMarketList() {
+        try {
+            return Arrays.stream(getLoginUser().getMarket().split(",")).toList();
+        } catch (Exception e) {
+            throw new RuntimeException("获取部门ID异常", e);
+        }
+    }
+
+    //获取用户账户
+    public static String getUsername() {
+        try {
+            return getLoginUser().getUsername();
+        } catch (Exception e) {
+            throw new RuntimeException("获取用户账户异常", e);
+        }
+    }
+
+    //获取当前登录用户
+    public static Admin getLoginUser() {
+        try {
+            return (Admin) getAuthentication().getPrincipal();
+        } catch (Exception e) {
+            throw new RuntimeException("获取用户信息异常", e);
+        }
+    }
+
+    //获取Authentication
+    public static Authentication getAuthentication() {
+        return SecurityContextHolder.getContext().getAuthentication();
+    }
+}
diff --git a/src/main/java/com/example/demo/annotation/DataScope.java b/src/main/java/com/example/demo/annotation/DataScope.java
new file mode 100644
index 0000000..7ac2f58
--- /dev/null
+++ b/src/main/java/com/example/demo/annotation/DataScope.java
@@ -0,0 +1,16 @@
+package com.example.demo.annotation;
+
+import java.lang.annotation.*;
+
+/**
+ * 数据权限过滤注解
+ */
+@Target(ElementType.METHOD)
+@Retention(RetentionPolicy.RUNTIME)
+@Documented
+public @interface DataScope {
+    /**
+     * 表别名
+     */
+    String tableAlias() default "";
+}