crampdataaction.java

本系统实现了从五个网站上搜索的图书进行整合后

package com.booksearch.action;
/************************************************************
FileName: CrampDataAction.java
Author: feng guang 
Date:11/16/08
Description: 获得请求url，启动线程去抽取网站数据库内容
Class List: CrampDataAction
***********************************************************/


import java.util.HashMap;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.log4j.Logger;
import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;

import com.booksearch.service.process.ProcessService;
import com.booksearch.service.urlservice.UrlfromDatabase;
import com.booksearch.util.SessionBean;


/**
 * Class:CrampDataAction
 * Description: 获得请求url，启动线程去抽取网站数据库内容
 * extens:Action
 * @author  feng guang
 * @since   11/16/08
 */
public class CrampDataAction extends Action {

    /*抽取网站内容的接口引用*/
    private ProcessService processService;
    /*从数据库中取得请求url的接口引用*/
    private UrlfromDatabase urlfromDatabase;
    
    private SessionBean sessionBean;
 
    private HashMap<String,String> urlMap = new HashMap<String,String>();

    public void setProcessService(ProcessService processService) {
 		this.processService = processService;
    }

	public void setUrlfromDatabase(UrlfromDatabase urlfromDatabase) {
		this.urlfromDatabase = urlfromDatabase;
	}
	public void setSessionBean(SessionBean sessionBean) {
		this.sessionBean = sessionBean;
	}

	/**
	* Function:  execute
	* Description:  获得请求url，启动线程去抽取网站数据库内容
	* Calls:  no
	* Called By:  no
	* @param mapping as ActionMapping,form as ActionForm request as HttpServletRequest,response as HttpServletResponse
	* @return ActionForward
	* @throws no
	*/
	public ActionForward execute(ActionMapping mapping,ActionForm form,
			                     HttpServletRequest request,HttpServletResponse response){
		/*根据检索方式不同获得不同请求url*/
		if(!"advanced".equals(this.sessionBean.getSearchKind())){
           
			urlMap = this.urlfromDatabase.getUrlMap((String) request.getAttribute("keyword")
					                               ,this.sessionBean.getSearchKind());	

		}else{
			try {
				urlMap = this.urlfromDatabase.getAdvancedUrlMap((String) request.getAttribute("keyword"));
			} catch (Exception e) {
				
				e.printStackTrace();
				Logger logger = Logger.getLogger(this.getClass());
				logger.error(e + "==========" + "获取请求路径错误" + "==========");
			}
		}
		/*启动多线程，去抽取指定网站的内容*/
		processService.startMultithread(urlMap,sessionBean);
	    /*转向结果处理action类*/
	    return mapping.findForward("page");
	}

}