MyBatis映射

Posted 2020-07-09 01源代码

mybatis-config.xml映射文件

<?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>
    <!-- 加载的关于数据库的配置信息 -->
    <properties resource="jdbc.properties"/>
    <environments default="development">
        <environment id="development">
            <!-- ACID -->
            <transactionManager type="JDBC" />
            <dataSource type="POOLED">
                <property name="driver" value="${jdbc.driver}" />
                <property name="url" value="${jdbc.url}" />
                <property name="username" value="${jdbc.username}" />
                <property name="password" value="${jdbc.password}" />
            </dataSource>
        </environment>
    </environments>
    <mappers>

 <!-- 映射你的xxxxMapper.xml文件 -->

<mapper resource="com/../*Mapper.xml"/>
 </mappers> 
</configuration>

jdbc.properties属性文件

jdbc.driver=com.mysql.jdbc.Driver
#修改这里的端口号/数据库/
jdbc.url=jdbc:mysql://127.0.0.1:3306/这里是你的数据库名称?useUnicode=true&characterEncoding=UTF-8
jdbc.username=root
#修改密码
jdbc.password=root