It's likely that neither a Result Type nor a Result Map was specified.

It’s likely that neither a Result Type nor a Result Map was specified.

Mybatis配置文件中没有返回类型参数

<select id="selectById">
		SELECT * FROM `user_info` where id=#{infoid}
	</select>

修改增加：resultType=“com.test.model.UserInfo”

<select id="selectById" resultType="com.test.model.UserInfo">
		SELECT * FROM `user_info` where id=#{infoid}
	</select>