tejiaservlet.java

精美的画面。完善的功能

package Flower.view;
import Flower.model.DBConnect;
import Flower.model.tejiaBean;
import Flower.model.tejia;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import javax.servlet.*;
import javax.servlet.http.*;
import java.io.PrintWriter;
import java.io.IOException;

public class tejiaServlet extends HttpServlet 
{
  private static final String CONTENT_TYPE = "text/html; charset=GBK";

  public void init(ServletConfig config) throws ServletException
  {
    super.init(config);
  }

  public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException
  {
   this.doPost(request,response);
  }

  public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException
  {
    response.setContentType(CONTENT_TYPE);
    PrintWriter out = response.getWriter();
    String action=request.getParameter("action");
    if(action.equals("add"))
    {
      String teid=request.getParameter("teid");
      String goodsid=request.getParameter("goodsid");
      tejia gi=new tejia();
      tejiaBean gib=new tejiaBean();
      gi.setteid(teid);
      gi.setGoodsid(goodsid);
      if(gib.getID(teid))
      {
            request.setAttribute("result",teid+"号特价商品已经存在，请重新输入！");
            getServletContext().getRequestDispatcher("tejiaadd.jsp").forward(request,response);
      }
      else
      {
          try
          {
            if(gib.addtejia(gi))
            {
                request.setAttribute("result",teid+"号特价商品添加成功！");
                getServletContext().getRequestDispatcher("tejiaadd.jsp").forward(request,response);

            }
          }
          catch(Exception ex)
          {
            ex.printStackTrace();
          }
      }
      
    }
    if(action.equals("update"))
    {
       String teid=request.getParameter("teid");
      String goodsid=request.getParameter("goodsid");
      tejia gi=new tejia();
      tejiaBean gib=new tejiaBean();
      gi.setteid(teid);
      gi.setGoodsid(goodsid);
      if(gib.getID(teid))
      {
        try 
        {
          if(gib.updatetejia(gi))
          {
            request.setAttribute("result",teid+"号特价商品更新成功！");
            getServletContext().getRequestDispatcher("tejiaupdate.jsp").forward(request,response);
          }
        } 
        catch (Exception ex) 
        {
          ex.printStackTrace();
        } 
        
      }
      else
      {
        request.setAttribute("result",teid+"号特价商品不存在，请重新输入！");
        getServletContext().getRequestDispatcher("tejiaupdate.jsp").forward(request,response);
      }
    }
    if(action.equals("find"))
    {
      String teid=request.getParameter("teid");
      String goodsid=request.getParameter("goodsid");
      tejia gi=new tejia();
      tejiaBean gib=new tejiaBean();
      gi.setteid(teid);
      gi.setGoodsid(goodsid);
      try
      {
      request.setAttribute("tejiagoods",gib.findtejia(gi));
      getServletContext().getRequestDispatcher("displaytejia.jsp").forward(request,response);
      }
      catch(Exception ex)
      {
        ex.printStackTrace();
      }
    }
    if(action.equals("del"))
    {
      String teid=request.getParameter("teid");
      tejiaBean prob=new tejiaBean();
      if(prob.deltejia(teid))
      {
            request.setAttribute("result",teid+"号特价商品删除成功！");
            getServletContext().getRequestDispatcher("tejiafind.jsp").forward(request,response);
      }
      out.close();
    }
  }
}