初识Spring

Spring写第一个hello world程序

先new->spring Bean Configuration ->创建.xml文件

<bean id="person" class="comt.atguigu.person.Student"> //bean标签是类，id用于做区别

<property name="name" value="tony">  //property是给属性赋值

</property>

</bean>

//创建spring ioc容器对象,ClassPathXmlApplicationContext(为xml配置文件)

ApplicationContext cxt =new ClassPathXmlApplicationContext("springbeancontext.xml");

//获取person对象，默认为Obj类型

Student student = (Student)cxt.getBean("person"); //括号里传id

student.sayHello();