初识Spring
下载spring:
创建一个Web项目导入必要包和log配置文件:
编写注入类HelloSpring
编写ApplicationContext.XML文件:
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" 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.xsd"> <!-- id获取bean节点的唯一标识 class注入的类所在的具体包 --> <bean id="testHelloSpring" class="cn.spring.demo.SpringHello"> <!-- property类的属性 name则为属性名 --> <property name="name"> <!-- 赋值 --> <value>张三</value> </property> <property name="age"> <value>18</value> </property> </bean> </beans>
编写测试类:
@Test public void hello(){ /* 获取配置文件实例 */ ApplicationContext app=new ClassPathXmlApplicationContext("ApplictionContext.xml"); /* 获取bean节点 */ SpringHello helo = (SpringHello)app.getBean("testHelloSpring"); helo.print(); }
其他方法获取配置文件:
FileSystemXmlApplicationContext BeanFactory