java bean 获取session java获取session对象

①得到底层HttpSession

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;public class WebUtils {

	/**
	 * 得到requset
	 */
	public static HttpServletRequest getRequest() {
		ServletRequestAttributes requestAttributes = (ServletRequestAttributes) 
				RequestContextHolder.getRequestAttributes();
		HttpServletRequest request = requestAttributes.getRequest();
		return request;
	}

	/**
	 * 得到session
	 */
	public static HttpSession getSession() {
		return getRequest().getSession();
	}}

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②通过Shiro的SecurityUtils对象

import org.apache.shiro.SecurityUtils;
import org.apache.shiro.session.Session;public class ShiroService {

	public void testMethod(){
		Session session = SecurityUtils.getSubject().getSession();
		Object val = session.getAttribute("key");	}

}