配置文件

mybatis-config.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE configuration
PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
	<properties resource="jdbc.properties"/>
<!--	<typeAliases>
		<typeAlias alias="Student" type="top.richmanroad.model.Student"/>
	</typeAliases>-->
	<typeAliases>
		<package name="top.richmanroad.model"></package>
	</typeAliases>
	<environments default="development">
		<environment id="development">
			<transactionManager type="JDBC" />
			<dataSource type="POOLED">
				<property name="driver" value="${jdbc.driverClassName}" />
				<property name="url" value="${jdbc.url}" />
				<property name="username" value="${jdbc.username}" />
				<property name="password" value="${jdbc.password}" />
			</dataSource>
		</environment>
	</environments>
	<!--以下注释内容为多种写法，未注释的为最优写法-->
<!--	<mappers>
		<mapper resource="top/richmanroad/mappers/StudentMapper.xml" />
	</mappers>-->
	<!--<mappers>
		<mapper class="top.richmanroad.mappers.StudentMapper"></mapper>
	</mappers>-->
	<mappers>
		<package name="top.richmanroad.mappers"></package>
	</mappers>
</configuration>