添加mysql driver

project-order/pom.xml

@@ -76,6 +76,11 @@
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-data-jpa</artifactId>
         </dependency>
+        
+	    <dependency>
+	      <groupId>com.mysql</groupId>
+	      <artifactId>mysql-connector-j</artifactId>
+	    </dependency>
     </dependencies>
     <build>
         <plugins>