diff --git a/Ylt/rough-dependencies/pom.xml b/Ylt/rough-dependencies/pom.xml
index e00edb1..d50bfdb 100644
--- a/Ylt/rough-dependencies/pom.xml
+++ b/Ylt/rough-dependencies/pom.xml
@@ -63,6 +63,7 @@
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-web</artifactId>
+            <!--排除掉Tomcat8-->
             <exclusions>
                 <exclusion>
                     <groupId>org.springframework.boot</groupId>
@@ -70,6 +71,7 @@
                 </exclusion>
             </exclusions>
         </dependency>
+        <!--使用Undertow-->
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-undertow</artifactId>