mappers 對映器（四種配置)

(1) mapper.xml

(2) 絕對路徑(不用)

(3) 介面配置

(4) 包掃描(使用)

    <!— sqlmapper 配置檔案路徑 -->
	<mappers>
		<mapper resource="org/mybatis/builder/AuthorMapper.xml"/>
		<mapper resource="org/mybatis/builder/BlogMapper.xml"/>
		<mapper resource="org/mybatis/builder/PostMapper.xml"/>
	</mappers>
	
	<!—url 絕對路徑形式-->
	<mappers>
		<mapper url="file:///var/mappers/AuthorMapper.xml"/>
		<mapper url="file:///var/mappers/BlogMapper.xml"/>
		<mapper url="file:///var/mappers/PostMapper.xml"/>
	</mappers>
	
	<!—介面 列表配置形式 註解 sql-->
	<mappers>
		<mapper class="org.mybatis.builder.AuthorMapper"/>
		<mapper class="org.mybatis.builder.BlogMapper"/>
		<mapper class="org.mybatis.builder.PostMapper"/>
	</mappers>

	<!—**對映包下所有介面**-->
	<mappers>
		<package name="org.mybatis.builder"/>
	</mappers>