Spring实战之让Bean获取Spring容器操作示例

<?xml version="1.0" encoding="GBK"?>
<beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
   xmlns="http://www.springframework.org/schema/beans"
   xsi:schemaLocation="http://www.springframework.org/schema/beans
   http://www.springframework.org/schema/beans/spring-beans-4.0.xsd">
   <!-- 加载容器国际化所需要的语言资源文件 -->
   <bean id="messageSource"
   class="org.springframework.context.support.ResourceBundleMessageSource">
      <property name="basenames">
        <list>
           <value>message</value>
        </list>
      </property>
   </bean>
   <!-- Spring容器会检测容器中所有Bean，如果发现某个Bean实现了
   ApplicationContextAware接口，Spring容器会在创建该Bean之后，
   自动调用该Bean的setApplicationContext()方法，调用该方法时，
   会将容器本身作为参数传给该方法。-->
   <bean id="person" class="org.crazyit.app.service.Person"/>
</beans>

hello=\u6b22\u8fce\u4f60\uff0c{0}
now=\u73b0\u5728\u65f6\u95f4\u662f\uff1a{0}

package org.crazyit.app.service;
import org.springframework.context.*;
import org.springframework.beans.BeansException;
import java.util.Locale;
public class Person implements ApplicationContextAware
{
  // 将BeanFactory容器以成员变量保存
  private ApplicationContext ctx;
  /* Spring容器会检测容器中所有Bean，如果发现某个Bean实现了ApplicationContextAware接口，
  Spring容器会在创建该Bean之后，自动调用该方法，调用该方法时，
  会将容器本身作为参数传给该方法。*/
  public void setApplicationContext(ApplicationContext ctx)
    throws BeansException
  {
    this.ctx = ctx;
  }
  public void sayHi(String name)
  {
    System.out.println(ctx.getMessage("hello" , new String[]{name}
      , Locale.getDefault(Locale.Category.FORMAT)));
  }
}

package lee;
import java.io.*;
import org.springframework.context.*;
import org.springframework.context.support.*;
import org.crazyit.app.service.*;
public class SpringTest
{
  public static void main(String[] args)throws Exception
  {
    ApplicationContext ctx = new
      ClassPathXmlApplicationContext("beans.xml");
    Person p = ctx.getBean("person" , Person.class);
    p.sayHi("孙悟空");
  }
}