java高级教程 圆 圆柱 面积

Test:

package com.m.ioc;

import org.springframework.context.ApplicationContext;

import

    org.springframework.context.support.ClassPathXmlApplicationContext;

public class Test {

    public static void main (String[] args) {

       ApplicationContext applicationContext= new ClassPathXmlApplicationContext("applicationContext.xml");

       UserDao userDao = (UserDao) applicationContext.getBean("userDao");

       userDao.say(3,3.14);

       userDao.say(5,3.14);

    }

 

}

 

Test01:

package com.m.ioc;

import org.springframework.context.ApplicationContext;

import

   org.springframework.context.support.ClassPathXmlApplicationContext;

public class Test01 {

    public static void main(String[] args){

       ApplicationContext applicationContext =

              new ClassPathXmlApplicationContext("applicationContext.xml");

       UserService userService =

              (UserService) applicationContext.getBean("userService");

       userService.say(4,18.84);

    }

 

}

 

UserDao.java:

package com.m.ioc;

 

public interface UserDao {

    public void say(int ll,double paipai);

}

 

UserDaoimp.java:

package com.m.ioc;

 

public class UserDaoimp implements UserDao{

    int l=4;double pai=3.14;

    public void say(int ll,double paipai)

    {

    l=ll;pai=paipai;

    System.out.println("底面周长是:"+(2*l*pai));

    System.out.println("底面积是:"+(l*l*pai));

    }

}

 

UserService.java:

package com.m.ioc;

 

public interface UserService {

    public void say(int h,double c);

}

UserServiceimp.java:

package com.m.ioc;

 

public class UserServiceimp implements UserService{

    double c=18.84;

    private UserDao userDao;

    public void setUserDao(UserDao userDao){

       this.userDao = userDao;

    }

    public void say(int h,double c){

    this.userDao.say(3,3.14);

    System.out.println("圆柱体积是:"+(c*h));

    }

}

 

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"

    xmlns:p="http://www.springframework.org/schema/p"

    xsi:schemaLocation="http://www.springframework.org/schema/beans

        http://www.springframework.org/schema/beans/spring-beans-4.3.xsd">

    <!-- 将指定类配置给Spring，让Spring创建其对象的实例 -->

    <bean id="userDao" class="com.m.ioc.UserDaoimp" />

    <bean id="userService" class="com.m.ioc.UserServiceimp" >

    <property name="userDao" ref="userDao" />

</bean>   

</beans>