alter pom

pom.xml

@@ -13,6 +13,7 @@
         <java.version>1.8</java.version>
         <maven.compiler.source>8</maven.compiler.source>
         <maven.compiler.target>8</maven.compiler.target>
+        <spring-boot.version>2.6.5</spring-boot.version>
         <mybatis-plus.version>3.5.1</mybatis-plus.version>
         <hutool.version>5.8.9</hutool.version>
         <jave-core.version>2.4.6</jave-core.version>
@@ -28,7 +29,7 @@
                 <!-- Import dependency management from Spring Boot -->
                 <groupId>org.springframework.boot</groupId>
                 <artifactId>spring-boot-dependencies</artifactId>
-                <version>2.6.5</version>
+                <version>${spring-boot.version}</version>
                 <type>pom</type>
                 <scope>import</scope>
             </dependency>
@@ -89,6 +90,10 @@
             <plugin>
                 <groupId>org.springframework.boot</groupId>
                 <artifactId>spring-boot-maven-plugin</artifactId>
+                <version>${spring-boot.version}</version>
+                <configuration>
+                    <mainClass>com.zyx.mpdemo.MpDemoApp</mainClass>
+                </configuration>
                 <executions>
                     <execution>
                         <goals>