diff --git a/spring-boot-demo-rbac-security/README.md b/spring-boot-demo-rbac-security/README.md
index 5eab089..611a0bc 100644
--- a/spring-boot-demo-rbac-security/README.md
+++ b/spring-boot-demo-rbac-security/README.md
@@ -388,7 +388,10 @@ public class SecurityConfig extends WebSecurityConfigurerAdapter {
 
 ### 3.4. RbacAuthorityService.java
 
-> 路由动态鉴权类，主要功能：根据当前请求路径与该用户可访问的资源做匹配，通过则可以访问，否则，不允许访问
+> 路由动态鉴权类，主要功能：
+>
+> 1. 校验请求的合法性，排除404和405这两种异常请求
+> 2. 根据当前请求路径与该用户可访问的资源做匹配，通过则可以访问，否则，不允许访问
 
 ```java
 /**
@@ -412,7 +415,12 @@ public class RbacAuthorityService {
     @Autowired
     private PermissionDao permissionDao;
 
+    @Autowired
+    private RequestMappingHandlerMapping mapping;
+
     public boolean hasPermission(HttpServletRequest request, Authentication authentication) {
+        checkRequest(request);
+
         Object userInfo = authentication.getPrincipal();
         boolean hasPermission = false;
 
@@ -449,6 +457,62 @@ public class RbacAuthorityService {
             return false;
         }
     }
+
+    /**
+     * 校验请求是否存在
+     *
+     * @param request 请求
+     */
+    private void checkRequest(HttpServletRequest request) {
+        // 获取当前 request 的方法
+        String currentMethod = request.getMethod();
+        Multimap<String, String> urlMapping = allUrlMapping();
+
+        for (String uri : urlMapping.keySet()) {
+            // 通过 AntPathRequestMatcher 匹配 url
+            // 可以通过 2 种方式创建 AntPathRequestMatcher
+            // 1：new AntPathRequestMatcher(uri,method) 这种方式可以直接判断方法是否匹配，因为这里我们把 方法不匹配 自定义抛出，所以，我们使用第2种方式创建
+            // 2：new AntPathRequestMatcher(uri) 这种方式不校验请求方法，只校验请求路径
+            AntPathRequestMatcher antPathMatcher = new AntPathRequestMatcher(uri);
+            if (antPathMatcher.matches(request)) {
+                if (!urlMapping.get(uri)
+                        .contains(currentMethod)) {
+                    throw new SecurityException(Status.HTTP_BAD_METHOD);
+                } else {
+                    return;
+                }
+            }
+        }
+
+        throw new SecurityException(Status.REQUEST_NOT_FOUND);
+    }
+
+    /**
+     * 获取 所有URL Mapping，返回格式为{"/test":["GET","POST"],"/sys":["GET","DELETE"]}
+     *
+     * @return {@link ArrayListMultimap} 格式的 URL Mapping
+     */
+    private Multimap<String, String> allUrlMapping() {
+        Multimap<String, String> urlMapping = ArrayListMultimap.create();
+
+        // 获取url与类和方法的对应信息
+        Map<RequestMappingInfo, HandlerMethod> handlerMethods = mapping.getHandlerMethods();
+
+        handlerMethods.forEach((k, v) -> {
+            // 获取当前 key 下的获取所有URL
+            Set<String> url = k.getPatternsCondition()
+                    .getPatterns();
+            RequestMethodsRequestCondition method = k.getMethodsCondition();
+
+            // 为每个URL添加所有的请求方法
+            url.forEach(s -> urlMapping.putAll(s, method.getMethods()
+                    .stream()
+                    .map(Enum::toString)
+                    .collect(Collectors.toList())));
+        });
+
+        return urlMapping;
+    }
 }
 ```
 
diff --git a/spring-boot-demo-rbac-security/src/main/java/com/xkcoding/rbac/security/config/RbacAuthorityService.java b/spring-boot-demo-rbac-security/src/main/java/com/xkcoding/rbac/security/config/RbacAuthorityService.java
index f39eb14..1c25012 100644
--- a/spring-boot-demo-rbac-security/src/main/java/com/xkcoding/rbac/security/config/RbacAuthorityService.java
+++ b/spring-boot-demo-rbac-security/src/main/java/com/xkcoding/rbac/security/config/RbacAuthorityService.java
@@ -53,7 +53,7 @@ public class RbacAuthorityService {
     private RequestMappingHandlerMapping mapping;
 
     public boolean hasPermission(HttpServletRequest request, Authentication authentication) {
-        checkRequestNotFound(request);
+        checkRequest(request);
 
         Object userInfo = authentication.getPrincipal();
         boolean hasPermission = false;
@@ -97,7 +97,7 @@ public class RbacAuthorityService {
      *
      * @param request 请求
      */
-    private void checkRequestNotFound(HttpServletRequest request) {
+    private void checkRequest(HttpServletRequest request) {
         // 获取当前 request 的方法
         String currentMethod = request.getMethod();
         Multimap<String, String> urlMapping = allUrlMapping();