获取spring的实例对象

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首先要继承ApplicationContextAware来获取上下文:ApplicationContext

public class SpringContextUtils implements ApplicationContextAware {

	private static ApplicationContext applicationContext;

	@Override
	public void setApplicationContext(ApplicationContext applicationContext)
	{
		SpringContextUtils.applicationContext = applicationContext;
	}

//	各种方法获取实例
	public static Object getBean(String beanName)
	{
		if (applicationContext != null)
			return applicationContext.getBean(beanName);
		
		return null;
	}

	public static <T> T getBean(Class<T> clazz)
	{
		if (applicationContext != null)
			return applicationContext.getBean(clazz);
		
		return null;
	}
	
	public static <T> T getBean(String beanName, Class<T> clazz)
	{
		if (applicationContext != null)
			return clazz.cast(getBean(beanName));
		
		return null;
	}

然后还需在 xml 文件里面加上此类:

<bean class="cn.base.mvc.SpringContextUtils" />