Mybatis的核心配置文件使用方法

   <dependencies>
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis</artifactId>
            <version>3.4.2</version>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>8.0.16</version>
        </dependency>
    </dependencies>

<?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 default="development">
    <environment id="development">
        <transactionManager type="JDBC"/>
        <dataSource type="POOLED">
            <property name="driver" value=""/>
            <property name="url" value=""/>
            <property name="username" value=""/>
            <property name="password" value=""/>
        </dataSource>
    </environment>
</environments>
</configuration>

    <!--    导入属性文件-->
    <properties resource="config.properties">

    </properties>

            <dataSource type="POOLED">
                <property name="driver" value="${driver}"/>
                <property name="url" value="${url}"/>
                <property name="username" value="${uname}"/>
                <property name="password" value="${upassword}"/>
            </dataSource>

driver=com.mysql.cj.jdbc.Driver
url=jdbc:mysql://127.0.0.1:3306/ssm_db?serverTimezone=Asia/Shanghai
uname=
upassword=

 <settings>
        <setting name="logImpl" value="STDOUT_LOGGING"/>
    </settings>

<typeAliases>
  <typeAlias alias="Author" type="domain.blog.Author"/>
  <typeAlias alias="Blog" type="domain.blog.Blog"/>
  <typeAlias alias="Comment" type="domain.blog.Comment"/>
  <typeAlias alias="Post" type="domain.blog.Post"/>
  <typeAlias alias="Section" type="domain.blog.Section"/>
  <typeAlias alias="Tag" type="domain.blog.Tag"/>
</typeAliases>

<!--    配置类型别名-->
    <typeAliases>
        <package name="mybatis.model"/>
    </typeAliases>

@Alias("author")
public class Author {
    ...
}