Spring第二天(XML装配Bean)

现在说最后一种装配Bean的方式, 利用XML装配Bean, 当然只是装配,不说多的,在后续的介绍中可能会随着知道东西多了会说的多一点, 但是现在我自己也只是在学习中, 可能也就只是把自己做的demo分享下来吧,有不到之还希望多指教,下面直接来干的

image.png

package xmlComponent;

public interface HelloWorldApi {
    public void sayHello();
}

package xmlComponent;
  
public class PersonHelloWorld implements HelloWorldApi {
    @Override
    public void sayHello() {
        System.out.println("Hello World!");
    }
}

新建一个bean.xml

<?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-3.0.xsd">
    <bean id="PersonHelloWorld"   class="xmlComponent.PersonHelloWorld"></bean>
</beans>

package xmlComponent;

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

public class HelloWorldTest {
    private static ApplicationContext context;

    public static void main(String[] args) { 
        context = new ClassPathXmlApplicationContext("bean.xml");   //此处是xml的路劲
        PersonHelloWorld objHelloWorld = (PersonHelloWorld) context.getBean("PersonHelloWorld");
        objHelloWorld.sayHello();
    }
}

运行之后得到结果

image.png