方法一：
package com.abin.lee.queue;
import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.context.support.ClassPathXmlApplicationContext;
/**
*
* 获取spring容器，以访问容器中定义的其他bean
*
* @author lyltiger
* @since MOSTsView 3.0 2009-11-16
*/
public class SpringContextUtil implements ApplicationContextAware {
// Spring应用上下文环境
private static ApplicationContext applicationContext = new ClassPathXmlApplicationContext(
"com/abin/lee/spring/applicationContext-queue.xml");
/**
* 实现ApplicationContextAware接口的回调方法，设置上下文环境
*
* @param applicationContext
*/
public void setApplicationContext(ApplicationContext applicationContext) {
SpringContextUtil.applicationContext = applicationContext;
}
/**
* @return ApplicationContext
*/
public static ApplicationContext getApplicationContext() {
return applicationContext;
}
/**
* 获取对象 这里重写了bean方法，起主要作用
*
* @param name
* @return Object 一个以所给名字注册的bean的实例
* @throws BeansException
*/
public static Object getBean(String name) throws BeansException {
return applicationContext.getBean(name);
}
}
方法二：
package com.abin.lee.queue;
import org.springframework.beans.factory.BeanFactory;
import org.springframework.beans.factory.xml.XmlBeanFactory;
import org.springframework.core.io.ClassPathResource;
public class BeanFactoryUtil {
private static BeanFactory factory = new XmlBeanFactory(
new ClassPathResource(
"com/abin/lee/spring/applicationContext-queue.xml"));
public static BeanFactory getFactory() {
return factory;
}
public static void setFactory(BeanFactory factory) {
BeanFactoryUtil.factory = factory;
}
public static Object getBean(String name){
return factory.getBean(name);
}
}
具体用法：
package com.abin.lee.queue;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.util.Map;
import javax.servlet.ServletException;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
public class QueueServlet extends HttpServlet{
protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
Map map=request.getParameterMap();
String name1=(String)((Object[])map.get("name1"))[0];
String name2=(String)((Object[])map.get("name2"))[0];
MakeQueue makeQueue = (MakeQueue)BeanFactoryUtil.getBean("makeQueue");//bean的名称
System.out.println(makeQueue.queueSize());
makeQueue.addQueue(name1);
makeQueue.addQueue(name2);
System.out.println(makeQueue.queueSize());
ServletOutputStream out=response.getOutputStream();
BufferedWriter writer=new BufferedWriter(new OutputStreamWriter(out));
writer.write("success");
writer.flush();
writer.close();
}
}