commit init

ym-admin/src/main/java/com/cnbm/admin/Expression/SGExpressionRoot.java

@@ -0,0 +1,28 @@
+package com.cnbm.admin.Expression;
+
+import com.cnbm.admin.entity.LoginUser;
+import com.cnbm.admin.entity.SysMenuEntity;
+import org.springframework.security.core.Authentication;
+import org.springframework.security.core.context.SecurityContextHolder;
+import org.springframework.stereotype.Component;
+
+import java.util.List;
+import java.util.stream.Collectors;
+
+/**
+ * @Author weihongyang
+ * @Date 2022/6/13 8:29 AM
+ * @Version 1.0
+ */
+@Component("ex")
+public class SGExpressionRoot {
+
+    public boolean hasAuthority(String authority){
+        //获取当前用户的权限
+        Authentication authentication = SecurityContextHolder.getContext().getAuthentication();
+        LoginUser loginUser = (LoginUser) authentication.getPrincipal();
+        List<String> permissions = loginUser.getPermissions();
+        //判断用户权限集合中是否存在authority
+        return permissions.contains(authority);
+    }
+}