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

public class GoodsCateInfoSave extends HttpServlet {


	private static final long serialVersionUID = -2305260907601477327L;
	HttpSession session=null;
	DataConnect dc=new DataConnect();
	Statement stat=null;
	ResultSet rs=null;
	RequestDispatcher requestdispatcher;
	String    goodscateid=null;
	String    goodscatename=null;
	int       id=0;
	int       flag=-10;
	
	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {

		request.setCharacterEncoding("GB2312");
		response.setContentType("text/html; charset=gb2312");
		session=request.getSession();
		
/*
* 获取commcatetable表的CommodityId字段的最后插入的值，生成下一条记录的CommodityId
* 字段的值！
* */
		String sql="select * from commcatetable order by ID desc limit 1";
		try{
			stat=dc.getStmtread();				 
			rs=stat.executeQuery(sql);
			rs.previous();
			while(rs.next()){
				   id=Integer.valueOf(rs.getString("CommodityId"));
			}
			if(id>0){
				     id+=1;
				     }else{
				     id=10000+1;
				     }

	   }catch(Exception ex){ex.printStackTrace();}finally{dc.close();}		

       goodscateid=String.valueOf(id);
       goodscatename=(String)request.getParameter("goodscatename");
       
       if(goodscatename==null){
		   session.setAttribute("errors", "商品分类名称必须填写!");
		   requestdispatcher=request.getRequestDispatcher("/errors/errorpage.jsp");
		   requestdispatcher.forward(request, response);
       }else{
    	   
    	   try{
    		   GoodsCateManager gcm=new GoodsCateManager();
    		   flag=gcm.AddGoodsCate(goodscateid,goodscatename);
    		   if(flag>0){
    			    session.setAttribute("success", "商品分类信息添加成功!");
		  			requestdispatcher=request.getRequestDispatcher("/viewpage/showpage/admingoodscateinfo.jsp");
		  			requestdispatcher.forward(request, response);
    		   }else{
		  			session.setAttribute("errors", " 商品分类信息添加失败!");
		  			requestdispatcher=request.getRequestDispatcher("/errors/errorpage.jsp");
		  			requestdispatcher.forward(request, response);
    		   }
    	   }catch(Exception ex){ex.printStackTrace();}
    	   
       }
		
	}
	
	
	public void doGet(HttpServletRequest request, HttpServletResponse response)
	throws ServletException, IOException {

		doPost(request,response);
		
    }

}