修复优惠券模块导致的bug运行不起来

pom.xml

@@ -67,9 +67,8 @@
 
     <!-- mysql -->
     <dependency>
-      <groupId>mysql</groupId>
-      <artifactId>mysql-connector-java</artifactId>
-      <version>8.0.33</version>
+      <groupId>com.mysql</groupId>
+      <artifactId>mysql-connector-j</artifactId>
       <scope>runtime</scope>
     </dependency>
 
@@ -171,15 +170,22 @@
     </dependency>
 
     <!-- jjwt -->
+    <dependency>
+      <groupId>io.jsonwebtoken</groupId>
+      <artifactId>jjwt-api</artifactId>
+      <version>0.11.5</version>
+    </dependency>
     <dependency>
       <groupId>io.jsonwebtoken</groupId>
       <artifactId>jjwt-impl</artifactId>
       <version>0.11.5</version>
+      <scope>runtime</scope>
     </dependency>
     <dependency>
       <groupId>io.jsonwebtoken</groupId>
       <artifactId>jjwt-jackson</artifactId>
       <version>0.11.5</version>
+      <scope>runtime</scope>
     </dependency>
 
     <!-- 图形验证码 -->
@@ -361,7 +367,6 @@
       <plugin>
         <groupId>org.springframework.boot</groupId>
         <artifactId>spring-boot-maven-plugin</artifactId>
-        <version>2.5.4</version>
         <configuration>
           <excludes>
             <exclude>