iteminfoservlet.java

网上购物系统

package Control_ItemInfo;
import Model_ItemInfo.ItemInfo;
import Model_ItemInfo.ItemInfoBean;
import javax.servlet.*;
import javax.servlet.http.*;
import java.io.PrintWriter;
import java.io.IOException;

public class ItemInfoServlet 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
  {
    response.setContentType(CONTENT_TYPE);
    this.doPost(request,response);
  }

  public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException
  {
    response.setContentType(CONTENT_TYPE);
    PrintWriter out = response.getWriter();
    request.setCharacterEncoding("GB2312");
    String action=request.getParameter("action");
    ItemInfo ii=new ItemInfo();
    ItemInfoBean iib=new ItemInfoBean();
    if (action.equals("add"))
    {
      ii.setItemID(request.getParameter("ItemID"));
      ii.setPetID(request.getParameter("PetID"));
      ii.setRetailPrice(request.getParameter("RetailPrice"));
      ii.setCostPrice(request.getParameter("CostPrice"));
      ii.setSupID(request.getParameter("SupID"));
      ii.setAttr1(request.getParameter("Attr1"));
      ii.setAttr2(request.getParameter("Attr2"));
      ii.setAttr3(request.getParameter("Attr3"));
      
      String re=iib.InsertItemInfo(ii);
      if (re.equals("添加成功"))
      {
        response.sendRedirect("Item.jsp");
      }
      else
      {
        response.sendRedirect("Error.jsp");
      }
    }
    else if(action.equals("update"))
    {
      ii.setItemID(request.getParameter("ItemID"));
      ii.setPetID(request.getParameter("PetID"));
      ii.setRetailPrice(request.getParameter("RetailPrice"));
      ii.setCostPrice(request.getParameter("CostPrice"));
      ii.setSupID(request.getParameter("SupID"));
      ii.setAttr1(request.getParameter("Attr1"));
      ii.setAttr2(request.getParameter("Attr2"));
      ii.setAttr3(request.getParameter("Attr3"));
      
      String re=iib.UpdateItemInfo(ii);
      if (re.equals("修改成功"))
      {
        response.sendRedirect("Item.jsp");
      }
      else
      {
        response.sendRedirect("Error.jsp");
      }
    }
    else if(action.equals("delete"))
    {
      ii.setItemID(request.getParameter("ItemID"));
      
      String re=iib.DeleteItemInfo(ii.getItemID());
      if (re.equals("删除成功"))
      {
        response.sendRedirect("Item.jsp");
      }
      else
      {
        response.sendRedirect("Error.jsp");
      }
    }
    out.close();
  }
}