SSM-Spring-MyBatisSpring项目-配置SqlSessionFactoryBean

SSM-Spring-MyBatisSpring项目-配置SqlSessionFactoryBean

​ 从SqlSessionFactoryBean类中可以得出，它几乎可以配置所有有关Mybatis的组件，且提供对应setter方法让Spring去设置它，如下：

    <bean id="dataSource" class="org.apache.commons.dbcp2.BasicDataSource">
        <property name="url" value="jdbc:mysql://localhost:3306/ssm"/>
        <property name="driverClassName" value="com.mysql.jdbc.Driver"/>
        <property name="username" value="root"/>
        <property name="password" value="123456789"/>
    </bean>


    <bean id="SqlSesstionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource" />
        <property name="configLocation" value="classpath:spring/sqlMapConfig.xml"/>
    </bean>

这里配置了数据源，还引入了一个Mybatis的配置文件sqlMapConfig.xml：

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper
        PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
        "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.ssm.mapper.RoleMapper">

    <insert id="insertRole" useGeneratedKeys="true" keyProperty="id">
        insert into role(role_name,note) values (#{roleName},#{note})
    </insert>

    <delete id="deleteRole" parameterType="long">
        delete from role where id=#{id}
    </delete>

    <update id="updateRole" parameterType="role">
        update role
        set roleName=#{roleName},
        note=#{note}
        where id=#{id}
    </update>
    
    <select id="getRole" parameterType="long" resultType="role">
        select id,roleName as roleName,note,from rele where id=#{id}
    </select>
    
</mapper>

​ 定义了一个命名空间，com.ssm.mapper.RoleMapper,且提供对角色的正删改查方法，按照Mybatis的规则，需要定义一个接口：

public interface RoleMapper {
    
    
    public int insertRole(Role role);
    public Role getRole(@Param("id") Long id);
    public int updateRole(Role role);
    public int deleteRole(@Param("id") Long id);
}

这样就完成了Mybatis框架的主要代码了