ssm整合spring

接着上一篇博客继续： 项目结构图： spring-dao.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 https://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context https://www.springframework.org/schema/context/spring-context.xsd"> <!-- 1.关联数据库配置文件--> <context:property-placeholder location="classpath:database.properties"/> <!-- 2.连接池 dbcp:半自动化操作，b不能自动连接 c3p0：自动化操作（自动化的加载配置，并且可以自动设置到对象中 druyid：hikari --> <!-- <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource"/>--> <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"> <property name="driverClass" value="${jdbc.driver}"/> <property name="jdbcUrl" value="${jdbc.url}"/> <property name="user" value="${jdbc.username}"/> <property name="password" value="${jdbc.password}"/> <property name="maxPoolSize" value="30"/> <property name="minPoolSize" value="10"/> <property name="autoCommitOnClose" value="false"/> <property name="checkoutTimeout" value="10000"/> <property name="acquireRetryAttempts" value="2"/> </bean> <!-- 3.sqlsesstionfactory--> <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> <property name="dataSource" ref="dataSource"/> <property name="configLocation" value="classpath:mybatis-config.xml"/> </bean> <!-- 4配置dao接口扫描包,动态了实现了dao接口可以注入到 spring容器中--> <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/> <!-- 扫描的dao包--> <property name="basePackage" value="com.kuang.dao"/> </bean> </beans>

spring-service.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 https://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context https://www.springframework.org/schema/context/spring-context.xsd"> <!-- 1.扫描service下面的包--> <context:component-scan base-package="com.kuang.service"/> <!-- 2.将我们的所有业务类都注册到spring，可以通过配置或者注解实现--> <bean id="BOOkServiceImpl" class="com.kuang.service.BookServiceImpl"> <property name="bookMapper" ref="bookMapper"/> </bean> <!-- 3.事务--> <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> <!-- 注入数据源--> <property name="dataSource" ref="dataSource"/> </bean> </beans>