springmvc：整合ssm（spring层）

1、spring整合dao层：创建一个配置文件（spring-dao.xml）

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:aop="http://www.springframework.org/schema/aop"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns="http://www.springframework.org/schema/beans"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
       http://www.springframework.org/schema/beans/spring-beans.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">
       <!--关联数据库文件-->
       <context:property-placeholder location="classpath:jdbc.properties"></context:property-placeholder>
       <!--连接池-->
       <bean name="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
         <property name="driverClass" value="${jdbc.driver}"></property>
         <property name="jdbcUrl" value="${jdbc.url}"></property>
         <property name="user" value="${jdbc.username}"></property>
         <property name="password" value="${jdbc.password}"></property>
       </bean>
       <!--sqlSessionFactory-->
       <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
           <property name="dataSource" ref="dataSource"></property>
           <property name="configLocation" value="classpath:mybatis-config.xml"></property>
       </bean>
       <!--配置dao接口扫描包，动态实现dao接口，可以注入到spring容器中-->
       <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
           <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property>
           <property name="basePackage" value="pers.zhb.dao"></property>
       </bean>
    </beans>

整合以前是mybatis管理，现在是交给spring容器进行管理

数据库参数的配置文件：jdbc.properties

jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/stu_mangement
jdbc.username=root
jdbc.password=root

2、spring整合service层：

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:aop="http://www.springframework.org/schema/aop"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns="http://www.springframework.org/schema/beans"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
       http://www.springframework.org/schema/beans/spring-beans.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">
    <import resource="classpath:spring-dao.xml"></import>
    <!--扫描service下的所有包-->
    <context:component-scan base-package="pers.zhb.service"></context:component-scan>
    <!--将我们所有的业务类注入到spring，可以通过配置或者注解的方式来实现-->
    <bean id="TeacherServiceImpl" class="pers.zhb.service.TeacherServiceImpl">
        <property name="teacherMapper" ref="teacherMapper"/>
    </bean>
    <!--声明式事务配置-->
    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource"></property>
    </bean>

</beans>

3、在applicationContext.xml配置文件中将上述的两个spring的配置文件导入进来：

<?xml version="1.0" encoding="UTF-8"?>
<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">
       <import resource="classpath:spring-dao.xml"></import>
       <import resource="classpath:spring-service.xml"></import>
</beans>