querybookaction.java

来自「j2ee应用和开发」· Java 代码 · 共 39 行

package edu.jnestore.action;

import org.apache.struts.action.*;
import javax.servlet.http.*;
import edu.jnestore.common.*;
import edu.jnestore.beans.*;
import edu.jnestore.service.*;
/** 
 *QueryBookAction处理查询图书请求
 */
public class QueryBookAction extends Action
{
	
  public ActionForward execute(ActionMapping actionMapping, ActionForm actionForm, HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse)
  {
  	
     HttpSession session = httpServletRequest.getSession();
     AddBookActionForm addBookActionForm = (AddBookActionForm)actionForm;
     //通过type参数取得查询类型，通过key参数取得查询关键字
     String queryType = (String)httpServletRequest.getParameter("type");
     String queryValue = (String)httpServletRequest.getParameter("key");
    PageDataBean bookList = null;
    IBizService bizservice = BizServiceFactory.createService();
    try
    {     
      if(queryType.equals("byAuthor")) 	//依据作者进行查询
       bookList = bizservice.getBookByAuthor(queryValue);
      else
        bookList = bizservice.getBookByName(queryValue);//依据书名进行查询  
      addBookActionForm.setBookList(bookList);//将查询结果存放到addBookActionForm中        
    }
    catch(Exception exception)
    {
      exception.printStackTrace();      
    }
  
    return actionMapping.findForward("mainmenu");
  }
}