mybatis的核心配置文件

<?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">

<!--        mybatis的核心配置-->

<configuration> 

<!--    从外部导入资源-->
    <properties resource="db.properties">
        <property name="" value=""/>
    </properties>
    
<!--    配置日志信息和驼峰命名,配置缓存信息-->
    <settings>
        <setting name="logImpl" value="LOG4J"/>
        <setting name="mapUnderscoreToCamelCase" value="true"/>
<!--        配置缓存信息-->
        <setting name="cacheEnabled" value="true"/>
    </settings>

<!--    实体类起别名：name后面是实体类的所在包-->
    <typeAliases>
        <package name="com.fu.pojo"/>
    </typeAliases>
    
    <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>
    

<!--    映射配置：resource：为你Mapper.xml所在的路径-->

    <mappers>
        <mapper resource="mapper\UserMapper.xml"/>
    </mappers>
    
</configuration>