更改数据库

src/main/resources/application-test.yml

@@ -7,4 +7,13 @@ spring:
     type: com.alibaba.druid.pool.DruidDataSource
 
 server:
-  port: 5115
\ No newline at end of file
+  port: 5115
+
+mybatis-plus:
+  global-config:
+    db-config:
+      id-type: auto
+  configuration:
+    database-id: mysql
+    cache-enabled: true
+    jdbc-type-for-null: 'null' #注意：单引号