applicationContext.xml - Spring核心配置模板

<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"
       xmlns:mybatis="http://mybatis.org/schema/mybatis-spring"
       xmlns:tx="http://www.springframework.org/schema/tx"
       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
       http://mybatis.org/schema/mybatis-spring http://mybatis.org/schema/mybatis-spring.xsd
       http://www.springframework.org/schema/tx
       http://www.springframework.org/schema/tx/spring-tx.xsd">



    
    <context:property-placeholder location="classpath*:db.properties" />

    
    <context:component-scan base-package="com.xgf"/>

    
    <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
        <property name="username" value="${jdbc.username}"/>
        <property name="password" value="${jdbc.password}"/>
        <property name="url" value="${jdbc.url}"/>
        <property name="driverClassName" value="${jdbc.driver}"/>
    bean>

    
    
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource" />
    bean>

    
    <mybatis:scan base-package="com.xgf.dao"/>

    
    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource"/>
    bean>
    
    <tx:annotation-driven transaction-manager="transactionManager"/>
beans>

// 获取bean工具类  通过class获取bean（获取dao的bean)
public class GetBeanUtils {
     

    private static ApplicationContext applicationContext = null;

    //静态代码块 只加载一次
    static {
     
        //加载配置文件
        applicationContext = new ClassPathXmlApplicationContext("com/xgf/config/applicationContext.xml");
    }

    public static <T> T getMapper(Class classFile) {
     
       return (T) applicationContext.getBean(classFile);
    }
}