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Auto-mapping

<resultMap> and <entity> enable auto-mapping by default via autoMapping. With auto-mapping you do not need to declare each column; dbVisitor maps properties by predefined rules.

以 <resultMap> 标签为例
<resultMap id="userResultMap" 
           type="com.example.dto.UserBean" 
           autoMapping="true"/> <!-- 默认 autoMapping 属性为 true 可不配置 -->
Two notes
  • If <resultMap> or <entity> contains any id/result/mapping entries, auto-mapping is disabled.
  • If a property has @Column, it is mapped regardless of autoMapping.

Camel case​

Databases often use uppercase and underscores, which differs from Java camelCase. Use mapUnderscoreToCamelCase to bridge this.

以 <resultMap> 标签为例
<resultMap id="userResultMap"
           type="com.example.dto.UserBean"
           mapUnderscoreToCamelCase="true"/>