Spring-搭建

package com.spring.test;
/**
 * 学生类
 */
public class Student {

    public void getName(){
        System.out.println("学生的NAME");
    }
}

package com.spring.test;

import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import org.springframework.context.support.FileSystemXmlApplicationContext;

public class Main {
    public void t(){
        /**
         * ApplicationContext:接口，应用的上下文；
         * 常用的实现类：
         *         1.ClassPathXmlApplicationContext：从类加载路径下搜索配置文件，及src下;
         *         2.FileSystemXmlApplicationContext:从文件系统的相对路径或绝对路径下查找；默认在该路径下[E:\work\workspace\Spring_7.3\beans.xml];
         *         3.XmlWebApplicationContext:
         */
        
        ApplicationContext applicationContext = new ClassPathXmlApplicationContext("beans.xml");
        Student stu1 = (Student) applicationContext.getBean("student");//获得bean的第1种方法，需要强制转换
        Student stu =  applicationContext.getBean("student",Student.class);//获得bean的第2种方法，无需强制装换
        stu.getName();
    }

    public static void main(String[] args) {
        Main m = new Main();
        m.t();
    }
}

【输出】
七月 15, 2016 10:06:44 下午 org.springframework.context.support.ClassPathXmlApplicationContext prepareRefresh
信息: Refreshing org.springframework.context.support.ClassPathXmlApplicationContext@6c069ec: startup date [Fri Jul 15 22:06:44 CST 2016];……
七月 15, 2016 10:06:44 下午 org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions
信息: Loading XML bean definitions from class path resource [beans.xml]
学生的NAME

<?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-3.1.xsd">
                        
                        
    <bean name="student" class="com.spring.test.Student"> </bean>



</beans>