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1、使用cookie自动登陆的拦截器（IMemberAware.java）：

/** *  */package com.web.struts.inteceptor;import com.model.Member;/** * @author Administrator *  */public interface IMemberAware {	public Member getMember();	public void setMember(Member member);}

/** *  */package com.web.struts.inteceptor;import javax.servlet.http.Cookie;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpSession;import org.apache.commons.lang.StringUtils;import org.apache.struts2.ServletActionContext;import com.opensymphony.xwork2.ActionInvocation;import com.opensymphony.xwork2.interceptor.AbstractInterceptor;import com.model.Member;import com.service.IMemberService;import com.tools.Constant;/** * title:会员cookie自动登陆 *  * @author Administrator * @时间 2009-4-24:下午03:42:25 */public class MemberCookieLoginInterceptor extends AbstractInterceptor {	private Member member;	private IMemberService memberService;	/**  */	private static final long serialVersionUID = 6998551363568297012L;		@SuppressWarnings("null")	@Override	public String intercept(ActionInvocation invocation) throws Exception {		HttpServletRequest request = ServletActionContext.getRequest();		HttpSession session = request.getSession();		if (StringUtils.isBlank(username)) {			Cookie[] cookies = request.getCookies();			Cookie member_cookie = null;			if (cookies != null || cookies.length >= 0) {				for (int i = 0; i < cookies.length; i++) {					member_cookie = cookies[i];					if (member_cookie != null							&& StringUtils.isNotBlank(member_cookie.getName())							&& StringUtils.isNotBlank(member_cookie.getValue())							&& member_cookie.getName().equals(									Constant.MEMBER_SESSION_ID)) {						member = memberService.getMember(member_cookie								.getValue());						if (member != null) {							session.setAttribute(Constant.MEMBER_SESSION_ID,									member_cookie.getValue());						}						break;					} else {						member_cookie = null;					}				}			}		}		return invocation.invoke();	}	public Member getMember() {		return member;	}	public void setMember(Member member) {		this.member = member;	}	public void setMemberService(IMemberService memberService) {		this.memberService = memberService;	}}

 3、会员管理面板的拦截器：

/** *  */package com.web.struts.inteceptor;import javax.servlet.http.Cookie;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpSession;import org.apache.commons.lang.StringUtils;import org.apache.struts2.ServletActionContext;import com.opensymphony.xwork2.ActionInvocation;import com.opensymphony.xwork2.interceptor.AbstractInterceptor;import com.model.Member;import com.service.IMemberService;import com.tools.Constant;/** * title: 用户在线 *  * @author conkeyn * @时间 2009-3-30:下午01:48:10 */public class MemberOnlineInterceptor extends AbstractInterceptor {	/**  */	private static final long serialVersionUID = 2470845588966783260L;	private Member member;	private IMemberService memberService;	@SuppressWarnings("null")	@Override	public String intercept(ActionInvocation invocation) throws Exception {		HttpServletRequest request = ServletActionContext.getRequest();		HttpSession session = request.getSession();		String username = (String) session				.getAttribute(Constant.MEMBER_SESSION_ID);		if (StringUtils.isBlank(username)) {			Cookie[] cookies = request.getCookies();			Cookie member_cookie = null;			if (cookies != null || cookies.length >= 0) {				for (int i = 0; i < cookies.length; i++) {					member_cookie = cookies[i];					if (member_cookie != null							&& StringUtils.isNotBlank(member_cookie.getName())							&& StringUtils.isNotBlank(member_cookie.getValue())							&& member_cookie.getName().equals(									Constant.MEMBER_SESSION_ID)) {						member = memberService.getMember(member_cookie								.getValue());						if (member != null) {							session.setAttribute(Constant.MEMBER_SESSION_ID,									member_cookie.getValue());						}						break;					} else {						member_cookie = null;					}				}			}		}		if (StringUtils.isBlank(username)) {			return "global_login";		} else {			System.out.println(invocation.getClass().getName());			if (invocation instanceof IMemberAware) {				member = memberService.getMember(username);				if (member != null) {					((IMemberAware) invocation).setMember(member);				}			}			return invocation.invoke();		}	}	public Member getMember() {		return member;	}	public void setMember(Member member) {		this.member = member;	}	public void setMemberService(IMemberService memberService) {		this.memberService = memberService;	}}

4、相关配置文件：

   1）spring配置方式：

   2）struts配置方式：

   
   	
    	
    	
    	
    	
    	
    		
     		
     			
      			
      			
      				
       				
       			
      		
     		
     	
    	
    		
     		
     			
      			
      			
      				
       				
       			
      			
      		
     		
     		
     			
      				
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