diff --git a/src/main/java/com/itheima/config/ServletConfig.java b/src/main/java/com/itheima/config/ServletConfig.java
index 292bb922e19e60f844784c4c9a0c34b6b63021e0..81f21620b0bb113719fba4aa5268ef49650489fa 100644
--- a/src/main/java/com/itheima/config/ServletConfig.java
+++ b/src/main/java/com/itheima/config/ServletConfig.java
@@ -1,6 +1,5 @@
 package com.itheima.config;//package com.itheima.config;
 
-
 import com.itheima.servletComponent.MyFilter;
 import com.itheima.servletComponent.MyListener;
 import com.itheima.servletComponent.MyServlet;
@@ -19,26 +18,25 @@ import java.util.Arrays;
 public class ServletConfig {
     // 注册Servlet组件
     @Bean
-    public ServletRegistrationBean getServlet(MyServlet myServlet){
-        ServletRegistrationBean registrationBean =
-                new ServletRegistrationBean(myServlet,"/myServlet");
+    public ServletRegistrationBean<MyServlet> getServlet(MyServlet myServlet) {
+        ServletRegistrationBean<MyServlet> registrationBean = new ServletRegistrationBean<MyServlet>(myServlet,
+                "/myServlet");
         return registrationBean;
     }
 
     // 注册Filter组件
     @Bean
-    public FilterRegistrationBean getFilter(MyFilter filter){
-        FilterRegistrationBean registrationBean = new FilterRegistrationBean(filter);
-        registrationBean.setUrlPatterns(Arrays.asList("/toLoginPage","/myFilter"));
+    public FilterRegistrationBean<MyFilter> getFilter(MyFilter filter) {
+        FilterRegistrationBean<MyFilter> registrationBean = new FilterRegistrationBean<MyFilter>(filter);
+        registrationBean.setUrlPatterns(Arrays.asList("/toLoginPage", "/myFilter"));
         return registrationBean;
     }
 
-    //注册 Listener组件
+    // 注册 Listener组件
     @Bean
-    public ServletListenerRegistrationBean configContextListener() {
-        ServletListenerRegistrationBean bean = new ServletListenerRegistrationBean();
+    public ServletListenerRegistrationBean<MyListener> configContextListener() {
+        ServletListenerRegistrationBean<MyListener> bean = new ServletListenerRegistrationBean<MyListener>();
         bean.setListener(new MyListener());
         return bean;
     }
 }
-