diff --git a/pom.xml b/pom.xml
index 31167e7..c563132 100644
--- a/pom.xml
+++ b/pom.xml
@@ -6,7 +6,7 @@
 
     <groupId>cn.langpy</groupId>
     <artifactId>ko-time</artifactId>
-    <version>2.4.8</version>
+    <version>2.4.9</version>
     <name>KoTime</name>
     <description>A springboot tool for tracking the paths of the methods,which can help you find method's performances easily.</description>
     <licenses>
diff --git a/src/main/java/cn/langpy/kotime/config/SaveResourceConfig.java b/src/main/java/cn/langpy/kotime/config/SaveResourceConfig.java
index 5cc8c67..55b4bb3 100644
--- a/src/main/java/cn/langpy/kotime/config/SaveResourceConfig.java
+++ b/src/main/java/cn/langpy/kotime/config/SaveResourceConfig.java
@@ -7,6 +7,7 @@ import cn.langpy.kotime.util.KoUtil;
 import cn.langpy.kotime.util.MethodType;
 import org.springframework.aop.MethodMatcher;
 import org.springframework.aop.aspectj.AspectJExpressionPointcutAdvisor;
+import org.springframework.beans.BeansException;
 import org.springframework.boot.CommandLineRunner;
 import org.springframework.context.ApplicationContext;
 import org.springframework.data.redis.core.StringRedisTemplate;
@@ -52,29 +53,42 @@ public class SaveResourceConfig implements CommandLineRunner {
         acquireControllers();
     }
     private void acquireControllers() {
-        RequestMappingHandlerMapping handlerMapping = applicationContext.getBean(RequestMappingHandlerMapping.class);
-        Map<RequestMappingInfo, HandlerMethod> handlerMethods = handlerMapping.getHandlerMethods();
-        GraphService graphService = GraphService.getInstance();
-        MethodMatcher methodMatcher = aspectJExpressionPointcutAdvisor.getPointcut().getMethodMatcher();
-        for (Map.Entry<RequestMappingInfo, HandlerMethod> methodEntry : handlerMethods.entrySet()) {
-            HandlerMethod handlerMethod = methodEntry.getValue();
-            boolean matches = methodMatcher.matches(handlerMethod.getMethod(), handlerMethod.getClass());
-            if (matches) {
-                MethodNode methodNode = toMethodNode(handlerMethod);
-                graphService.addMethodNode(methodNode);
+        try {
+            RequestMappingHandlerMapping handlerMapping = applicationContext.getBean(RequestMappingHandlerMapping.class);
+            Map<RequestMappingInfo, HandlerMethod> handlerMethods = handlerMapping.getHandlerMethods();
+            GraphService graphService = GraphService.getInstance();
+            MethodMatcher methodMatcher = aspectJExpressionPointcutAdvisor.getPointcut().getMethodMatcher();
+            for (Map.Entry<RequestMappingInfo, HandlerMethod> methodEntry : handlerMethods.entrySet()) {
+                HandlerMethod handlerMethod = methodEntry.getValue();
+                boolean matches = methodMatcher.matches(handlerMethod.getMethod(), handlerMethod.getClass());
+                if (matches) {
+                    MethodNode methodNode = toMethodNode(handlerMethod);
+                    if (methodNode == null) {
+                        continue;
+                    }
+                    graphService.addMethodNode(methodNode);
+                }
             }
+        } catch (BeansException e) {
+            log.warning("kotime=>An error occured while loading all controllers:"+e.getMessage());
         }
     }
 
     private MethodNode toMethodNode(HandlerMethod method) {
         Class<?> beanType = method.getBeanType();
         RequestMapping requestMapping = beanType.getAnnotation(RequestMapping.class);
+        if (requestMapping == null) {
+            return null;
+        }
         String[] cvalues = requestMapping.value();
         String classRoute = "";
         if (cvalues != null && cvalues.length > 0) {
             classRoute = cvalues[0];
         }
         RequestMapping methodAnnotation = method.getMethodAnnotation(RequestMapping.class);
+        if (requestMapping == null) {
+            return null;
+        }
         String[] mvalues = methodAnnotation.value();
         String methodRoute = "";
         if (mvalues != null && mvalues.length > 0) {
diff --git a/src/main/resources/koapp.properties b/src/main/resources/koapp.properties
index 10c98e6..9696d4f 100644
--- a/src/main/resources/koapp.properties
+++ b/src/main/resources/koapp.properties
@@ -1 +1 @@
-ko-time.version=2.4.8
\ No newline at end of file
+ko-time.version=2.4.9
\ No newline at end of file