mybatis浅显认识

mybatis主配置文件：

<?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>

//environments里:连接那个数据库

<environments default="development">

<environment id="development">

<transactionManager type="JDBC"/>

<dataSource type="POOLED">

<property name="driver" value="${driver}"/>

<property name="url" value="${url}"/>

<property name="username" value="${username}"/>

<property name="password" value="${password}"/>

</dataSource>

</environment>

</environments>

//注册映射文件，一般让namespace与接口的权限类名相同后，不写这个映射文件也可以找到

<mappers>

<mapper resource="org/mybatis/example/BlogMapper.xml"/>

</mappers>

</configuration>

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