searchaction_checi.java

java做的 公交车查询系统....毕业设计

//在main.jsp主页中,进行车次查询处理动作
package gongjiaochexitong.gongjiaoche.main_pkg;

import gongjiaochexitong.gongjiaoche.*;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

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 org.apache.struts.action.ActionMessages;
import org.apache.struts.action.ActionMessage;
import javax.servlet.ServletContext;
import javax.sql.DataSource;

public final class searchAction_CheCi extends Action{
	
	public ActionForward execute(
		ActionMapping mapping,
		ActionForm form,
		HttpServletRequest request,  
		HttpServletResponse response) throws Exception {
			
		cheCiForm checiForm = (cheCiForm)form;
		int checihao = checiForm.getCheci();
		
		ServletContext context = servlet.getServletContext();
		DataSource dataSource = (DataSource)context.getAttribute("db_gongjiaoche");
		conn_Bus db = new conn_Bus(dataSource);   		
		//System.out.println(db);
		HttpSession session = request.getSession();
		ActionMessages actionMessages = new ActionMessages();
				
		if(checihao!=0){			
			request.setAttribute(constants.SEARCH_CHECIHAO_KEY,procedure.search_CheCiHao(db,checihao));
			
			actionMessages.add(ActionMessages.GLOBAL_MESSAGE,
					new ActionMessage("label.searchSuccess"));
						
			if (!actionMessages.isEmpty()) {
						saveMessages(request, actionMessages);
			}
			db.conn_Close();     //close connection
		    return mapping.findForward("searchSuccess");	
		}
		else{
			actionMessages.add(ActionMessages.GLOBAL_MESSAGE,
					new ActionMessage("label.searchFailure"));
						
			if (!actionMessages.isEmpty()) {
						saveMessages(request, actionMessages);
			}
			db.conn_Close();     //close connection
			return mapping.findForward("searchError");
		}	
		
	}
	
}