carmanageinfoupdate.java

基于J2EE的网络物流系统 用户操作： 1． 录入出库商品信息 2． 查询出库单信息 3． 录入入库商品信息 4． 查询入库单信息 5． 查询商品位置信息 6． 查询商品信息 7． 查

package com.logistic.servlet;

import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.RequestDispatcher;
import javax.servlet.http.HttpSession;
import java.sql.ResultSet;
import java.sql.Statement;
import com.logistic.business.CarManager;
import com.logistic.data.DataConnect;

public class CarManageInfoUpdate extends HttpServlet {


	private static final long serialVersionUID = -2305260907601477327L;
	DataConnect dc=new DataConnect();
	HttpSession session;
	Statement   stat=null;
	ResultSet   rs=null;
	RequestDispatcher requestdispatcher;
	int   flag=0;
	int    id=0;
	String cid=null;
	String did=null;
	String tid=null;
	
	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {

		request.setCharacterEncoding("GB2312");
		response.setContentType("text/html;charset=gb2312");
		session=request.getSession();
			
/*-----------获得页面carmanagemodify.jsp提交的数据，进行检验合法后插入数据库------------*/
		id =Integer.valueOf((String)request.getParameter("id"));
		cid=(String)request.getParameter("carnumber");   		//车辆号码		
		did=(String)request.getParameter("driverid"); 			//驾驶员编号
		tid=(String)request.getParameter("carteamid");			//车队编号

//如果车辆号码，驾驶员编号，车队编号三项中有一个为null就跳转到errorpage.jsp页面
		if(cid==null||did==null||tid==null){
			
			session.setAttribute("errors","修改车辆信息失败，*标识项必须正确填写!");
			requestdispatcher=request.getRequestDispatcher("/errors/errorpage.jsp");
			requestdispatcher.forward(request, response);
		}else{
			
			try{
				flag=-10;
				CarManager cm=new CarManager();
				flag=cm.ModifyCarManager(id, cid, did, tid);
				if(flag>0){      //车辆管理数据添加成功跳转到admincarinfo.jsp页面
					session.setAttribute("success", "车辆管理信息修改成功!");
					requestdispatcher=request.getRequestDispatcher("/viewpage/datamodify/carmanagemodify.jsp");
					requestdispatcher.forward(request,response);
				}else{			//车辆管理数据添加失败跳转到errorpage.jsp页面
					session.setAttribute("errors", "车辆管理信息修改失败!");	
					requestdispatcher=request.getRequestDispatcher("/errors/errorpage.jsp");
					requestdispatcher.forward(request,response);
				}
			}catch(Exception ex){flag=-1;ex.printStackTrace();}finally{dc.close();}
		}
		
	}
	
	
	public void doGet(HttpServletRequest request, HttpServletResponse response)
	throws ServletException, IOException {

		doPost(request,response);
   }

}