Spring 集成Mybatis

一：首先下载jar包（Spring、mybatis、dbcp及mybatis-spring）,注意Spring与mybatis之间是有版本要求的，不然会报错，具体版本间对照网上很多，就不贴出来了

数据库连接池使用的是dbcp,这个看自己，可以随时替换

<!-- https://mvnrepository.com/artifact/org.apache.commons/commons-dbcp2 -->
<dependency>
    <groupId>org.apache.commons</groupId>
    <artifactId>commons-dbcp2</artifactId>
    <version>2.1.1</version>
</dependency>

<!-- https://mvnrepository.com/artifact/org.mybatis/mybatis-spring -->
<dependency>
    <groupId>org.mybatis</groupId>
    <artifactId>mybatis-spring</artifactId>
    <version>1.3.2</version>
</dependency>

<!-- https://mvnrepository.com/artifact/org.mybatis/mybatis -->
<dependency>
    <groupId>org.mybatis</groupId>
    <artifactId>mybatis</artifactId>
    <version>3.4.6</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-context -->
<dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-context</artifactId>
    <version>4.3.14.RELEASE</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-jdbc -->
<dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-jdbc</artifactId>
    <version>4.3.14.RELEASE</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework.batch/spring-batch-infrastructure -->
<dependency>
    <groupId>org.springframework.batch</groupId>
    <artifactId>spring-batch-infrastructure</artifactId>
    <version>3.0.9.RELEASE</version>
</dependency>

二：配置spring配置文件

<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:context="http://www.springframework.org/schema/context" xmlns:p="http://www.springframework.org/schema/p"
       xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
       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-4.0.xsd
   http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd
   http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd
   http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.0.xsd">

    <!--开启Spring扫描-->
    <context:component-scan base-package="com.founderit"/>
    <context:annotation-config/>

    <!--DBCP数据库连接池-->
     <bean id="dataSource"
               class="org.apache.commons.dbcp2.BasicDataSource"
               destroy-method="close">
             <property name="driverClassName" value="oracle.jdbc.driver.OracleDriver"/>
             <property name="url" value="jdbc:oracle:thin:@127.0.0.1:1521:orcl"/>
             <property name="username" value="scott"/>
             <property name="password" value="scott"/>
             <!--maxActive: 最大连接数量-->
             <property name="maxTotal" value="150"/>
             <!--minIdle: 最小空闲连接-->
             <property name="minIdle" value="5"/>
             <!--maxIdle: 最大空闲连接-->
             <property name="maxIdle" value="20"/>
             <!--initialSize: 初始化连接-->
             <property name="initialSize" value="30"/>
             <!--removeAbandonedTimeout: 超时时间(以秒数为单位)-->
             <property name="removeAbandonedTimeout" value="10"/>
         </bean>

    <!-- spring和MyBatis完美整合 -->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource"/>
        <!-- 自动扫描mapping.xml文件 -->
        <property name="mapperLocations" value="com/founderit/mapper/*.xml"></property>
    </bean>

    <!-- DAO接口所在包名，Spring会自动查找其下的类 -->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="com.founderit.dao"/>
<!--        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property>-->
    </bean>
    <!-- (事务管理)transaction manager -->
    <bean id="transactionManager"
          class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource"/>
    </bean>
</beans>

三：测试

 由于我们要在main方法中测试，所以讲UserDao加了static关键字，运行提示错误，@Autowired自动注入不支持静态域，再次修改测试

 我们从applicationContext中得到TestMain的实例，执行下面的bindSSM方法，测试成功

另外需要注意的是必须从applicationContext中得到TestMain的实例，不能自己new MainTest()得到实例，不然UserDao会注入不成功

原文地址：https://www.cnblogs.com/lovetq520/p/11718360.html