Java Spring快速入门

package com.atguigu.spring.beans;
public class HelloWorld {
  private String name;
  public void setName(String name) {
    System.out.println("setName...");
    this.name = name;
  }
  public void hello(){
    System.out.println("Hello " + name);
  }
  public HelloWorld() {
    System.out.println("HelloWorld's construct...");
  }
}

<?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:util="http://www.springframework.org/schema/util"
  xmlns:p="http://www.springframework.org/schema/p"
xsi:schemaLocation="http://www.springframework.org/schema/beans  　　　　　　　　　　 http://www.springframework.org/schema/beans/spring-beans.xsd         http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.0.xsd">
  <bean id="helloworld" class="com.atguigu.spring.beans.HelloWorld">
    <property name="name" value="spring"></property>
  </bean>
</beans>

package com.atguigu.spring.beans;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
public class Main {
  public static void main(String[] args) {
    /*
    HelloWorld helloWorld = new HelloWorld();
    helloWorld.setName("spring");
    helloWorld.hello();
    */
  　　//1.创建容器
    ApplicationContext ctx = new   ClassPathXmlApplicationContext("appliactionContext.xml");
　　　　//2.从容器中获取bean
    HelloWorld hello = (HelloWorld) ctx.getBean("helloworld");
　　　　//3.调用bean的方法
    hello.hello();
  }
}