package com.lyq.action.interceptor;

import java.util.Map;

import com.lyq.action.BaseAction;
import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionInvocation;
import com.opensymphony.xwork2.interceptor.AbstractInterceptor;
/**
 * 管理员登录拦截器
 * @author Li Yongqiang
 */
public class UserLoginInterceptor extends AbstractInterceptor {
	private static final long serialVersionUID = 1L;
	
	@Override
	public String intercept(ActionInvocation invocation) throws Exception {
		// 获取ActionContext
		ActionContext context = invocation.getInvocationContext();
		// 获取Map类型的session
		Map<String, Object> session = context.getSession();
		// 判断用户是否登录 
		if(session.get("admin") != null){
			// 调用执行方法
			return invocation.invoke();
		}
		// 返回登录
		return BaseAction.USER_LOGIN;
	}
}