spring的配置文件和加载

①：创建applicationContext.xml配置文件放在src下

//applicationContext.xml代码
<?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" xmlns:util="http://www.springframework.org/schema/util"  
	xmlns:jee="http://www.springframework.org/schema/jee" xmlns:tx="http://www.springframework.org/schema/tx"
	xmlns:jpa="http://www.springframework.org/schema/data/jpa" xmlns:mvc="http://www.springframework.org/schema/mvc"
	xsi:schemaLocation="
		http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.2.xsd
		http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.2.xsd
		http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-3.2.xsd
		http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-3.2.xsd
		http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.2.xsd
		http://www.springframework.org/schema/data/jpa http://www.springframework.org/schema/data/jpa/spring-jpa-1.3.xsd
		http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd">
<bean id="student" class="entity.Student"  scope="prototype"></bean>
</beans>

②：导入ioc jar包并创建对应的java类（entity.Studen）；

commons-logging.jar
spring-beans-版本号.RELEASE.jar
spring-context-版本号.RELEASE.jar
spring-core-版本号.RELEASE.jar
spring-expression-版本号.RELEASE.jar

③：加载配置文件创建实例

String str="applicationContext.xml";
		ApplicationContext ac=
			new ClassPathXmlApplicationContext(str);
		Student s =ac.getBean("student",Student.class);