添加命名转换规则

Author: Tellsea

springboot-mybatis/src/main/resources/application.yml

@@ -2,9 +2,13 @@ spring:
   application:
     name: item-service
   datasource:
-    url: jdbc:mysql://localhost:3306/springboot-learn
+    url: jdbc:mysql://localhost:3306/springboot-mybatis
     username: root
     password: 123456
     hikari:
       maximum-pool-size: 30
-      minimum-idle: 10
+      minimum-idle: 10
+# 开启驼峰式命名转换，映射关系：user_name-->userName
+mybatis:
+  configuration:
+    map-underscore-to-camel-case: true