WebApplicationUtils

获取WebApplicationContext的方法

最新推荐文章于 2021-12-28 12:01:35 发布

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本文介绍了一种通过实现ApplicationContextAware和ServletContextAware接口来获取Spring上下文（WebApplicationContext）的方法。此外，还展示了如何从该上下文中获取SessionFactory及Session实例。

自由获得WebApplicationContext的方式。

package com.common;

import javax.servlet.ServletContext;

import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.web.context.ServletContextAware;

public class WebApplicationUtils implements ApplicationContextAware,ServletContextAware{

	public static ApplicationContext applicationContext = null;
	public static ServletContext servletContext = null;
	private static SessionFactory factory;
	private static Session session;

	public static  SessionFactory getFactory() {
		factory = (SessionFactory)WebApplicationUtils.getApplicationContext().getBean("sessionFactory");
		return factory;
	}

	public static  Session getSession() {
		session = getFactory().getCurrentSession();
		return session;
	}

	public void setApplicationContext(ApplicationContext actx) throws BeansException {
		if(WebApplicationUtils.applicationContext==null){
			WebApplicationUtils.applicationContext = actx;
		}

	}

	public void setServletContext(ServletContext sctx) {
		if(WebApplicationUtils.servletContext==null){
			WebApplicationUtils.servletContext=sctx;
		}
	}

	public static ApplicationContext getApplicationContext() {
		return applicationContext;
	}

	public static ServletContext getServletContext() {
		return servletContext;
	}


}