Spring Framework_学习记录_15

女爷i 2022-02-28 04:24 172阅读 0赞

### 1.Using MessageSource To Get Text From Property Files ###

*  DrawingApp.java

package org.zcs.spring;
    
    import org.springframework.beans.factory.BeanFactory;
    import org.springframework.context.ApplicationContext;
    import org.springframework.context.support.AbstractApplicationContext;
    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");
     
    		Shape circle = (Shape)context.getBean("circle");
    		circle.draw();
    		System.out.println(context.getMessage("greeting", null, "Default Greeting", null));
    	}
    }

*  Circle.java

package org.zcs.spring;
    
    import javax.annotation.PostConstruct;
    import javax.annotation.PreDestroy;
    import javax.annotation.Resource;
     
    
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.beans.factory.annotation.Qualifier;
    import org.springframework.context.MessageSource;
    import org.springframework.stereotype.Component;
     
    @Component
    public class Circle implements Shape { 
    	@Autowired
    	private MessageSource messageSource;
    	public MessageSource getMessageSource() { 
    		return messageSource;
    	}
    	public void setMessageSource(MessageSource messageSource) { 
    		this.messageSource = messageSource;
    	}
    	private Point center;
    	public Point getCenter() { 
    		return center;
    	}
    	 @Resource 
    	public void setCenter(Point center) { 
    		this.center = center;
    	}
    	 @PostConstruct
    	 public void initlize() { 
    		 System.out.println("initlizing a circle ");
    	 }
    	 @PreDestroy
    	 public void destroy() { 
    		 System.out.println("destroy a circle");
    	 }
    	@Override
    	public void draw() { 
    		// TODO Auto-generated method stub
    		System.out.println("Drawing Circle:");
    		System.out.println(messageSource.getMessage("drawing.circle", null, "Defalut Drawing circle", null));
    		System.out.println(messageSource.getMessage("drawing.point", new Object[] { center.getX(), center.getY()}, "Defalut Drawing point", null));
     		System.out.println(messageSource.getMessage("greeting", null, "Defalut Greeting", null));
    		
    	}
    	
    }

*  message.properties

greeting=Hello!
    drawing.circle = Drawing  a Circle
    drawing.point = Circle : point is :( { 0} ,{ 1})

*  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:context="http://www.springframework.org/schema/context" 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/context http://www.springframework.org/schema/context/spring-context.xsd">
     			<context:annotation-config />
    
       	
       	<bean id= "pointA" class = "org.zcs.spring.Point">
       		 <qualifier  value = "circleRelated"></qualifier>
       		<property name="x"  value = "${pointA.pointX}"></property>
       		<property name="y"  value = "${pointA.pointY}"></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= "center" class = "org.zcs.spring.Point">
    		   <property name="x"  value = "0"></property>
    		   <property name="y"  value = "20"></property>
       	</bean>
     	
       	
       	<context:component-scan base-package="org.zcs.spring"></context:component-scan>
       	 	<bean class = "org.zcs.spring.MyBeanFactory" ></bean>
       	<bean class = "org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
       		<property name="locations" value = "pointsconfig.properties"></property>
       	</bean>
       	 <bean class = "org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor">
       	 </bean>
        <bean id = "messageSource" class = "org.springframework.context.support.ResourceBundleMessageSource">
        	<property  name = "basenames">
        		<list>
        			<value>message</value>
        		</list>
        	</property>
        </bean>
      </beans>

### 2.学习记录 ###

*  本节学习使用了如何对properties文件资源中获取自己想要的数据
 *  学习了在properties文件中定义数据
 *  学习了怎么样从中获取两个参数