struts2中的使用BaseAction获取Session

package com.owen.ma;

import java.util.Map;

import org.apache.struts2.interceptor.RequestAware;
import org.apache.struts2.interceptor.SessionAware;

import com.opensymphony.xwork2.ActionSupport;

public class BaseAction extends ActionSupport implements RequestAware , SessionAware {

    private Map<string, object=""> request;
    private Map<string, object=""> session;

    @Override
    public void setRequest(Map<string, object=""> request) {
        this.request = request;
    }

    @Override
    public void setSession(Map<string, object=""> session) {
        this.session = session;
    }

    public Object getAttribute(String key) {
        if (this.request.containsKey(key)) {
            return this.request.get(key);
        }
        return null;
    }

    public void setAttribute(String key, Object object) {
        if (this.request.containsKey(key)) {
            this.request.remove(key);
            this.request.put(key, object);
        }
    }

    public Object getSession(String key) {
        if (this.session.containsKey(key)) {
            return this.session.get(key);
        }
        return null;
    }

    public void setSession(String key, Object object) {
        if (this.session.containsKey(key)) {
            this.session.remove(key);
            this.session.put(key, object);
        }
    }

}