1、采用MapperScannerConfigurer，它将会查找类路径下的映射器并自动将它们创建成MapperFactoryBean。
spring-mybatis.xml:

例：图书添加。

建立数据库：

 创建book实体：

private int id;private String bookname;private int bookprice;

public int getId() {    return id;}

public void setId(int id) {    this.id = id;}

public String getBookname() {    return bookname;}

public void setBookname(String bookname) {    this.bookname = bookname;}

public int getBookprice() {    return bookprice;}

public void setBookprice(int bookprice) {    this.bookprice = bookprice;}

创建IBookDAO

public interface IBookDAO {    public int addbook(book book);}

创建IBookDAO.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"><!--映射文件的根节点  namespace--><mapper namespace="cn.happy.day16ssm.dao.IBookDAO">    <insert id="addbook">        insert into bookshop(bookname,bookprice) values(#{bookname},#{bookprice})    </insert></mapper>service层：

IBookService：

public interface IBookService {    public int addbook(book book);}

BookServiceimpl：

public class BookServiceimpl implements IBookService {    private IBookDAO dao;

    public IBookDAO getDao() {        return dao;    }

    public void setDao(IBookDAO dao) {        this.dao = dao;    }

    public int addbook(book book) {        return dao.addbook(book);

    }}JDBC的四大属性：

jdbc.url=jdbc:mysql:///bookshopjdbc.driverClassName=com.mysql.jdbc.Driverjdbc.username=rootjdbc.password=MyBatis的配置文件：

<?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"><!--核心配置文件的根节点--><configuration>    <!--别名的设置-->    <typeAliases>        <package name="cn.happy.day16ssm.entity"></package>    </typeAliases>    <!--管理小配置--></configuration>配置文件：

<?xml version="1.0" encoding="UTF-8"?><beans xmlns="http://www.springframework.org/schema/beans"       xmlns:tx="http://www.springframework.org/schema/tx"       xmlns:aop="http://www.springframework.org/schema/aop"

       xmlns:context="http://www.springframework.org/schema/context"       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"       xsi:schemaLocation="http://www.springframework.org/schema/beans      http://www.springframework.org/schema/beans/spring-beans-2.5.xsd       http://www.springframework.org/schema/aop      http://www.springframework.org/schema/aop/spring-aop.xsd      http://www.springframework.org/schema/context      http://www.springframework.org/schema/context/spring-context.xsd      http://www.springframework.org/schema/tx      http://www.springframework.org/schema/tx/spring-tx.xsd">    <bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">        <property value="classpath:jdbc.properties" name="location"></property>    </bean>

   <!--阿里数据源-->    <!--阿里数据源 不想进入阿里的程序员，不是好厨师-->    <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource">        <property name="url" value="${jdbc.url}"></property>        <property name="driverClassName" value="${jdbc.driverClassName}"></property>        <property name="username" value="${jdbc.username}"></property>        <property name="password" value="${jdbc.password}"></property>    </bean>    <!--将Mybatis SqlsessionFactory-->    <bean  class="org.mybatis.spring.SqlSessionFactoryBean">        <property name="dataSource" ref="dataSource"></property>        <property name="configLocation" value="classpath:mybatis-config.xml"></property>    </bean>

    <!--bookDAO 根据工厂生成session-->    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer" >        <property name="basePackage" value="cn.happy.day16ssm.dao"></property>    </bean>    <!--4.service-->    <bean id="bookService" class="cn.happy.day16ssm.service.BookServiceimpl">        <property name="dao" ref="IBookDAO"></property>

    </bean>

    <!--平台事务管理器-->    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">        <!--注入什么东西 事务对象的来源，一定是Connection -->        <property name="dataSource" ref="dataSource"></property>    </bean>

     <!--方式三：Aspectj AOP 方式管理事物--><tx:advice id="txadvice" transaction-manager="transactionManager">    <tx:attributes>        <tx:method name="addbook" isolation="DEFAULT" propagation="REQUIRED" />    </tx:attributes></tx:advice><aop:config>    <aop:pointcut id="mypoint" expression="execution(* *..day16ssm.service.*.*(..))"></aop:pointcut>    <aop:advisor advice-ref="txadvice" pointcut-ref="mypoint"></aop:advisor></aop:config></beans>

测试类：

public class test16ssm {@Test    public void t01(){    ApplicationContext ac=new ClassPathXmlApplicationContext("applicationContextStockday16ssm.xml");    IBookService service=(IBookService)ac.getBean("bookService");        book book=new book();        book.setBookname("三国演义");        book.setBookprice(200);        service.addbook(book);

}} 运行结果：

运行结果：