IDEA配置spring

大半天都在看spring，以前总是看不下去，这次慢慢来，慢慢看。

看那些基础的，倒是还不错。好多都是关于helloworld的，写完helloworld，觉得不怎么形象。于是写了动物，作为接口。

(1)动物接口方法：move（），say（）。

(2)cat和dog ，实现接口。

package Animal;

/**
 * Created with IntelliJ IDEA.
 * User: wang
 * Date: 13-10-22
 * Time: 下午5:12
 * To change this template use File | Settings | File Templates.
 */
public class Cat implements Animal {
    @Override
    public void move() {
        //To change body of implemented methods use File | Settings | File Templates.
        System.out.println("4 legs");
    }

    @Override
    public void say() {
        //To change body of implemented methods use File | Settings | File Templates.
        System.out.println("miao  miao");
    }
}

(3)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">
             <bean id="cat" class="Animal.Cat" ></bean>
             <bean id="dog" class="Animal.Dog"></bean>
             <bean id="bird" class="Animal.Bird">
                 <constructor-arg index="0" value="gegegege"></constructor-arg>
                 <constructor-arg index="1" value="gogogo"></constructor-arg>
             </bean>
</beans>

xml里面，有个constructor-arg ，这个是bird里面，构造方法参数。

(4) Bird.java

package Animal;

/**
 * 带有参数的spring bean
 * Created with IntelliJ IDEA.
 * User: wang
 * Date: 13-10-22
 * Time: 下午6:09
 * To change this template use File | Settings | File Templates.
 */
public class Bird implements Animal {

    private String message;
    private String movess;
    public Bird(String message,String movess){
         this.message=message;
         this.movess=movess;
    }

    @Override
    public void say() {
        //To change body of implemented methods use File | Settings | File Templates.
        System.out.println(message);
    }

    @Override
    public void move() {
        //To change body of implemented methods use File | Settings | File Templates.
        System.out.println(movess);
    }
}

构造方法里面，有两个参数，xml对应的有设置。

(5) 然后测试一下，ATest.java

package Animal;

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

/**
 * Created with IntelliJ IDEA.
 * User: wang
 * Date: 13-10-22
 * Time: 下午5:19
 * To change this template use File | Settings | File Templates.
 */
public class ATest {
    public static void main(String args[]){
        ApplicationContext applicationContext=new ClassPathXmlApplicationContext("spring-config.xml");
        Animal animal=applicationContext.getBean("cat",Cat.class);
        animal.say();
        animal.move();
        Animal animal1=applicationContext.getBean("dog",Dog.class);
        animal1.say();
        animal1.move();
        Animal animal2=applicationContext.getBean("bird",Bird.class);
        animal2.say();
        animal2.move();
    }
}

这突出了面向接口编程了。

总之还不错，看了一些，挺不错的。