common增加servlet包。

common/pom.xml

@@ -150,6 +150,13 @@
             <artifactId>tomcat-embed-core</artifactId>
         </dependency>
         <!-- aliyun oss end -->
+
+        <dependency>
+            <groupId>javax.servlet</groupId>
+            <artifactId>javax.servlet-api</artifactId>
+            <version>3.1.0</version>
+            <scope>provided</scope>
+        </dependency>
     </dependencies>
 
 </project>