content: package org.springblade.modules.mjkj.common.config.util;
  
  import org.springframework.beans.BeansException;
  import org.springframework.context.ApplicationContext;
  import org.springframework.context.ApplicationContextAware;
  import org.springframework.stereotype.Component;
  import org.springframework.web.context.request.RequestContextHolder;
  import org.springframework.web.context.request.ServletRequestAttributes;
  
  import javax.servlet.http.HttpServletRequest;
  
  @Component
  public class SpringContextUtils implements ApplicationContextAware {
  
  	/**
  	 * 上下文对象实例
  	 */
  	private static ApplicationContext applicationContext;
  
  	@Override
  	public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
  		SpringContextUtils.applicationContext = applicationContext;
  	}
  
  	/**
  	 * 获取applicationContext
  	 *
  	 * @return
  	 */
  	public static ApplicationContext getApplicationContext() {
  		return applicationContext;
  	}
  
  	/**
  	  * 获取HttpServletRequest
  	 */
  	public static HttpServletRequest getHttpServletRequest() {
  		return ((ServletRequestAttributes) RequestContextHolder.getRequestAttributes()).getRequest();
  	}
  
  	public static String getDomain(){
  		HttpServletRequest request = getHttpServletRequest();
  		StringBuffer url = request.getRequestURL();
  		return url.delete(url.length() - request.getRequestURI().length(), url.length()).toString();
  	}
  
  	public static String getOrigin(){
  		HttpServletRequest request = getHttpServletRequest();
  		return request.getHeader("Origin");
  	}
  
  	/**
  	 * 通过name获取 Bean.
  	 *
  	 * @param name
  	 * @return
  	 */
  	public static Object getBean(String name) {
  		return getApplicationContext().getBean(name);
  	}
  
  	/**
  	 * 通过class获取Bean.
  	 *
  	 * @param clazz
  	 * @param       <T>
  	 * @return
  	 */
  	public static <T> T getBean(Class<T> clazz) {
  		return getApplicationContext().getBean(clazz);
  	}
  
  	/**
  	 * 通过name,以及Clazz返回指定的Bean
  	 *
  	 * @param name
  	 * @param clazz
  	 * @param       <T>
  	 * @return
  	 */
  	public static <T> T getBean(String name, Class<T> clazz) {
  		return getApplicationContext().getBean(name, clazz);
  	}
  }
  