done

src/main/resources/mybatis-config.xml

@@ -24,8 +24,8 @@
 
 
     <!-- 数据库配置 -->
-    <environments default="dev">
-        <environment id="master">
+    <environments default="master">
+        <environment id="dev">
             <transactionManager type="JDBC"/>
             <dataSource type="POOLED">
                 <property name="driver" value="com.mysql.cj.jdbc.Driver"/>