使用idea maven实现Spring+mybati的整合

   Spring和mybatis的整合步骤：

            加入Spring和mybatis的有关jar包

             建立开发目录结构，创建实体类

             创建数据访问接口（BookDao）

              创建数据访问接口的实现类（BookDaoImpl）

              配置SQL映射文件（BookDao.xml）

              配置mybatis应用配置文件(Mybatis-config.xml)

              配置Spring应用配置文件（applicationContext.xml）

      有关jar包：

 <dependency>      <groupId>junit</groupId>      <artifactId>junit</artifactId>      <version>3.8.1</version>      <scope>test</scope>    </dependency>    <!-- mybatis核心包 -->    <dependency>      <groupId>org.mybatis</groupId>      <artifactId>mybatis</artifactId>      <version>3.4.4</version>    </dependency>    <!-- mysql驱动包 -->    <dependency>      <groupId>mysql</groupId>      <artifactId>mysql-connector-java</artifactId>      <version>5.1.29</version>    </dependency>    <dependency>      <groupId>junit</groupId>      <artifactId>junit</artifactId>      <version>RELEASE</version>    </dependency>    <!-- 日志文件管理包 -->    <dependency>      <groupId>log4j</groupId>      <artifactId>log4j</artifactId>      <version>1.2.17</version>    </dependency>    <!-- Spring -->    <dependency>      <groupId>org.springframework</groupId>      <artifactId>spring-context</artifactId>      <version>4.2.1.RELEASE</version>    </dependency>    <dependency>      <groupId>org.springframework</groupId>      <artifactId>spring-beans</artifactId>      <version>4.2.3.RELEASE</version>    </dependency>    <!--织入的依赖-->    <dependency>      <groupId> org.aspectj</groupId >      <artifactId> aspectjweaver</artifactId >      <version> 1.8.6</version >    </dependency>    <!--spring-mybatis-->    <dependency>      <groupId>org.mybatis</groupId>      <artifactId>mybatis-spring</artifactId>      <version>1.3.1</version>    </dependency>    <dependency>      <groupId>commons-dbcp</groupId>      <artifactId>commons-dbcp</artifactId>      <version>1.4</version>    </dependency>        <dependency>      <groupId>org.springframework</groupId>      <artifactId>spring-jdbc</artifactId>      <version>4.2.5.RELEASE</version>    </dependency>

       BookDao：

  

package cn.jjz.dao;import cn.jjz.entity.Book;import java.util.List;/** * Created by lenovo on 2017/7/1. */public interface BookDao {    //加载所有图书信息    public List<Book> bookList();}

        BookDaoimpl：

package cn.jjz.dao;import cn.jjz.entity.Book;import org.mybatis.spring.SqlSessionTemplate;import java.util.List;/** * Created by lenovo on 2017/8/1. */public class BookDaoImpl implements BookDao {    private SqlSessionTemplate st;    public BookDaoImpl() {    }    public BookDaoImpl(SqlSessionTemplate st) {        this.st = st;    }    public SqlSessionTemplate getSt() {        return st;    }    public void setSt(SqlSessionTemplate st) {        this.st = st;    }    public List<Book> bookList() {        return (List<Book>) st.getMapper(BookDao.class).bookList();    }}

   BookDao.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="cn.jjz.dao.BookDao">    <!-- 查询所有图书-->    <select id="bookList"  resultType="Book">        select * from book    </select></mapper>

     applicationContext.xml:

<?xml version="1.0" encoding="UTF-8"?><beans xmlns="http://www.springframework.org/schema/beans"       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"       xmlns:context="http://www.springframework.org/schema/context"       xsi:schemaLocation="http://www.springframework.org/schema/beans        http://www.springframework.org/schema/beans/spring-beans.xsd                          http://www.springframework.org/schema/context       http://www.springframework.org/schema/context/spring-context.xsd">     <!--配置数据源   用的dbcp-->    <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">       <property name="driverClassName" value="com.mysql.jdbc.Driver"></property>        <property name="url" value="jdbc:mysql://localhost:3306/bookdb?ampcharacterEncoding=utf-8" />        <property name="username" value="root" />        <property name="password" value=""/>    </bean>    <!--配置sqlsessionFactoryBean-->    <bean id="sessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">        <property name="dataSource" ref="dataSource"></property>        <!--使用mybtis中的配置-->        <property name="configLocation" value="classpath:Mybatis-config.xml"></property>        <property name="mapperLocations">            <list>                <value>classpath:cn/jjz/dao/*.xml</value>            </list>        </property>    </bean>    <!--配置sqlsessionTemplate-->    <bean id="sessionTemplate" class="org.mybatis.spring.SqlSessionTemplate">        <constructor-arg name="sqlSessionFactory" ref="sessionFactory"></constructor-arg>    </bean>    <!--配置Dao-->    <bean id="book" class="cn.jjz.dao.BookDaoImpl">        <property name="st" ref="sessionTemplate"></property>    </bean></beans>

      Mybatis-config.xml:

<?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>    <!--log4j-->    <settings>        <setting name="logImpl" value="STDOUT_LOGGING"/>    </settings>    <!--类型别名-->    <typeAliases>        <package name="cn.jjz.entity"></package>    </typeAliases></configuration>

      BookTest测试类：

import cn.jjz.dao.BookDao;import cn.jjz.entity.Book;import org.junit.Test;import org.springframework.context.ApplicationContext;import org.springframework.context.support.ClassPathXmlApplicationContext;import java.util.List;/** * Created by lenovo on 2017/8/1. */public class BookTest {    @Test    public void a() throws Exception {        ApplicationContext a=new ClassPathXmlApplicationContext("applicationContext.xml");       BookDao d=(BookDao) a.getBean("book");      List<Book> dd= d.bookList();        for (Book b:dd             ) {            System.out.println(b.getBookname());        }    }}