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 = "triangle" class= "org.zcs.spring.Triangle"  autowire= "byName"  >
 		  
 		 <property name="pointA" ref = "pointA"></property>
 		 <property name="pointB" ref = "pointB"></property>
 		 <property name="pointC" ref = "pointC"></property>
 		
   	</bean> -->
   	
   	<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>
 	
   	<!--  <bean id = "circle" class= "org.zcs.spring.Circle"   >
 		 
   	</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