qqq

pom.xml

@@ -69,4 +69,14 @@
         </dependency>
     </dependencies>
 
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-maven-plugin</artifactId>
+                <version>2.5.4</version>
+            </plugin>
+        </plugins>
+    </build>
+    
 </project>
\ No newline at end of file

src/main/resources/application.yml

 server:
-  port: 8888
+  port: 898989
 spring:
   datasource:
     url: jdbc:mysql://localhost:3306/user?serverTimezone=GMT%2B8&useUnicode=true&characterEncoding=utf8&autoReconnect=true&allowMultiQueries=true