Spring Framework_学习记录_06

末蓝、 2022-03-07 11:22 132阅读 0赞

### 1.集合实例化 ###

*  DrawingApp.java

package org.zcs.spring;
    
    import org.springframework.beans.factory.BeanFactory;
    import org.springframework.context.ApplicationContext;
    import org.springframework.context.support.ClassPathXmlApplicationContext;
    import org.springframework.context.support.FileSystemXmlApplicationContext;
     
    
    public class DrawingApp { 
    
    	public static void main(String[] args) { 
    		// TODO Auto-generated method stub
    		//BeanFactory factory = new FileSystemXmlApplicationContext("src/spring.xml");
    		//Triangle triangle = new Triangle();
    		ApplicationContext context = new ClassPathXmlApplicationContext("spring.xml");
    		Triangle triangle = (Triangle)context.getBean("triangle");
    		triangle.draw();
    	}
    }

*  Triangle.java

package org.zcs.spring;
    
    import java.util.List;
    
    public class Triangle { 
    	private List<Point> list ;
    	
    	public List<Point> getList() { 
    		return list;
    	}
    
    	public void setList(List<Point> list) { 
    		this.list = list;
    	}
    
    	public void draw () { 
    		for(Point p : list) { 
    			System.out.println("This is Point: (" +p.getX()  +"," + (p.getY()) +")");
    		}
    	}
    }

*  spring.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" 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">
       
       	<bean id = "triangle" class= "org.zcs.spring.Triangle"  name = "triangle-name">
     		  <property name="list">
     		  	<list>
     		  		<ref bean= "zeroPoint"/>
     		  		<ref bean= "twoPoint"/>
     		  		<ref bean= "threePoint"/>
     		  		
     		  	</list>
     		  </property>
     		 
     		
       	</bean>
       	
       	<bean id= "zeroPoint" class = "org.zcs.spring.Point">
       		<property name="x"  value = "0"></property>
       		<property name="y"  value = "0"></property>
       	</bean>
       	<bean id= "twoPoint" class = "org.zcs.spring.Point">
    		<property name="x"  value = "20"></property>
    		<property name="y"  value = "0"></property>
    	</bean>
    
     	<bean id= "threePoint" class = "org.zcs.spring.Point">
    		   <property name="x"  value = "0"></property>
    		   <property name="y"  value = "20"></property>
       	</bean>
     
      </beans>

### 2.bean 的自动装入 ###

*  DrawingApp.java

*  Triangle.java

package org.zcs.spring;
    
    import java.util.List;
    
    public class Triangle { 
    	 private Point pointA;
    	 private Point pointB;
    	 private Point pointC;
    	 
    
    	public Point getPointA() { 
    		return pointA;
    	}
    
    
    	public void setPointA(Point pointA) { 
    		this.pointA = pointA;
    	}
    
    
    	public Point getPointB() { 
    		return pointB;
    	}
    
    
    	public void setPointB(Point pointB) { 
    		this.pointB = pointB;
    	}
    
    
    	public Point getPointC() { 
    		return pointC;
    	}
    
    
    	public void setPointC(Point pointC) { 
    		this.pointC = pointC;
    	}
    
    
    	public void draw () { 
    		
    			System.out.println("This is PointA: (" +getPointA().getX()  +"," + getPointA().getY() +")");
    			System.out.println("This is PointB: (" +getPointB().getX()  +"," + getPointB().getY() +")");
    			System.out.println("This is PointC: (" +getPointC().getX()  +"," + getPointC().getY() +")");
    	}
    }

*  spring.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" 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">
       
       	<bean id = "triangle" class= "org.zcs.spring.Triangle"  autowire= "byName">
     		  
     		 
     		
       	</bean>
       	
       	<bean id= "pointA" class = "org.zcs.spring.Point">
       		<property name="x"  value = "0"></property>
       		<property name="y"  value = "0"></property>
       	</bean>
       	<bean id= "pointB" class = "org.zcs.spring.Point">
    		<property name="x"  value = "20"></property>
    		<property name="y"  value = "0"></property>
    	</bean>
    
     	<bean id= "pointC" class = "org.zcs.spring.Point">
    		   <property name="x"  value = "0"></property>
    		   <property name="y"  value = "20"></property>
       	</bean>
     
       	
      </beans>

### 3.学习笔记 ###

*  学习了如何对集合进行注入对象的。
 *  学习了spring是如何进行自动装配的，自动装配可以通过name、type、constructor等等。