baseaction.java

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package com.olr.control.common;
import java.util.Map;

import org.apache.log4j.Logger;
import org.apache.struts2.ServletActionContext;

import com.olr.util.Constants;
import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionSupport;


public class BaseAction extends ActionSupport {
	
	public Logger log = null;
    //取得当前登录的用户名
	protected String getLoginUsername(){
		return (String)ActionContext.getContext().getSession().get(Constants.USERNAME_KEY);
	}
	
	 //取得当前登录的用id
	protected String getLoginUserId(){
		return (String) ActionContext.getContext().getSession().get("userId");
	}
	
	protected String getLoginUserPower(){
		return ActionContext.getContext().getSession().get("power").toString();
	}
	//判断当前用户是否超时
	protected boolean isTimeout(){
		if(ActionContext.getContext().getSession().get(Constants.USERNAME_KEY)==null){
			return true;
		} else {
			return false;
		}
		
	}
	
	//检查Session对象是否存在
	protected boolean isExistSession(String key){
		if(ActionContext.getContext().getSession().get(key)!=null){
			return true;
		}else{
			return false;
		}
		
	}
	
	protected boolean isLogin(){
		if(this.getLoginUsername()==null||this.isTimeout()){
			return false;
		}else{
			return true;
		}
	}
	
	//保存Session对象
	protected void setSession(String key ,Object obj){
		ActionContext.getContext().getSession().put(key, obj);
	}
	
	//从session中删除值
	protected void removeSession(String key){
		try{
		ActionContext.getContext().getSession().remove(key);
		}catch(Exception e){
			log.error("no this session :"+key);
		}
	}
	
	protected Map getParameterMap(){
		return ActionContext.getContext().getParameters();
	}
	
	//取得Session对象
	protected Object getSession(String key){
		return ActionContext.getContext().getSession().get(key);
	}
	//保存一条错误
	protected void saveActionError(String key){
		super.addActionError(super.getText(key));
	}
	//保存一个消息
	protected void saveActionMessage(String key){
		super.addActionMessage(super.getText(key));
	}
	//取得查询的URL
	protected String getRequestPath(){
		
		return (String)ServletActionContext.getRequest().getServletPath();
	}
	
	protected Logger getLogger(Class c){
		return Logger.getLogger(c);
	}
	
	
}