goodsaction.java~83~

这是一个用Struts做出来的网上商城的源代码

package com.webtier;

import org.apache.struts.action.ActionMapping;
import org.apache.struts.action.ActionForm;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts.action.ActionForward;
import com.domain.GoodsForm;
import org.apache.struts.action.Action;
import com.dao.GoodsDao;
import java.util.List;
import com.dao.SmallTypeDao;
import com.tool.Chinese;
import javax.servlet.http.HttpSession;
import java.io.UnsupportedEncodingException;

//商品的Action
public class GoodsAction
    extends Action {
  private int action;
  private GoodsDao dao = null;
  private SmallTypeDao small = null;
  private HttpSession session = null;
  public ActionForward execute(ActionMapping mapping,
                               ActionForm form,
                               HttpServletRequest request,
                               HttpServletResponse response) throws
      UnsupportedEncodingException {
    request.setCharacterEncoding("gb2312");
    this.dao = new GoodsDao();
    small = new SmallTypeDao();
    action = Integer.parseInt(request.getParameter("action"));
    session = request.getSession();
    switch (action) {
      case 0: {
        return goodSelect(mapping, form, request, response); //全部查询小类别信息
      }
      case 1: {
        return goodForward(mapping, form, request, response); //转向页面
      }
      case 2: {
        return selectSmallName(mapping, form, request, response); //查询小类别的名称
      }
      case 3: {
        return saveGoods(mapping, form, request, response); //把从页面中信息存储在bean中
      }
      case 4: {
        return insertGoods(mapping, form, request, response); //添加商品的信息
      }
      case 5: {
        return selectOneGoods(mapping, form, request, response); //查看商品的详细信息
      }
      case 6: {
        return deleteGoods(mapping, form, request, response); //删除商品信息
      }
      case 7: {
        return goodSelectMark(mapping, form, request, response); //  按特价商品信息查询
      }
      case 8: {
        return goodSelectSmall(mapping, form, request, response); //按小类别商品信息查询
      }
      case 9: {
        return goodSelectBig(mapping, form, request, response); //按大类别商品信息查询
      }
      case 10: {
        return managerFreePirceForward(mapping, form, request, response); //转向特价商品页面
      }
      case 11: {
        return managerFreePirce(mapping, form, request, response); //设置特价价格
      }
      case 12: {
        return goodSelectBigHead(mapping, form, request, response); //按大类别商品信息查询商品和商品小类别的名称
      }
      case 13: {
        return goodSelectSmallHead(mapping, form, request, response); //按小类别商品信息查询商品和商品小类别的名称
      }
      case 14: {
        return goodSelectNewHead(mapping, form, request, response); //新品查询
      }
    }

    GoodsForm goodsForm = (GoodsForm) form;
    throw new java.lang.UnsupportedOperationException(
        "Method $execute() not yet implemented.");
  }

  public ActionForward goodSelectFreeHead(ActionMapping mapping,
                                          ActionForm form,
                                          HttpServletRequest request,
                                          HttpServletResponse response) {
    List list = null;
    String mark = request.getParameter("mark");
    list = dao.selectMark(Integer.valueOf(mark));
    int pageNumber = list.size(); //计算出有多少条记录
    int maxPage = pageNumber; //计算有多少页数
    String number = request.getParameter("i");
    if (maxPage % 4 == 0) {
      maxPage = maxPage / 4;
    }
    else {
      maxPage = maxPage / 4 + 1;
    }
    if (number == null) {
      number = "0";
    }
    request.setAttribute("number", String.valueOf(number));
    request.setAttribute("maxPage", String.valueOf(maxPage));
    request.setAttribute("pageNumber", String.valueOf(pageNumber));
    request.setAttribute("list", list);
    return mapping.findForward("goodSelectFreeHead");
  }

  //新品查询
  public ActionForward goodSelectNewHead(ActionMapping mapping,
                                         ActionForm form,
                                         HttpServletRequest request,
                                         HttpServletResponse response) {
    List list = null;
    String mark = request.getParameter("mark");
    request.setAttribute("list", list);
    return mapping.findForward("goodSelectNewHead");
  }

  //按小类别商品信息查询商品和商品小类别的名称
  public ActionForward goodSelectSmallHead(ActionMapping mapping,
                                           ActionForm form,
                                           HttpServletRequest request,
                                           HttpServletResponse response) {
    List list = null;
    list = dao.selectSmall(Integer.valueOf(request.getParameter("small")));
    int pageNumber = list.size(); //计算出有多少条记录
    int maxPage = pageNumber; //计算有多少页数
    String number = request.getParameter("i");
    if (maxPage % 4 == 0) {
      maxPage = maxPage / 4;
    }
    else {
      maxPage = maxPage / 4 + 1;
    }
    if (number == null) {
      number = "0";
    }
    request.setAttribute("number", String.valueOf(number));
    request.setAttribute("maxPage", String.valueOf(maxPage));
    request.setAttribute("pageNumber", String.valueOf(pageNumber));
    request.setAttribute("list", list);
    request.setAttribute("smallList",
                         small.selectOneBigId(Integer.valueOf(request.
        getParameter("big"))));
    return mapping.findForward("goodSelectSmallHead");
  }

  //按大类别商品信息查询商品和商品小类别的名称
  public ActionForward goodSelectBigHead(ActionMapping mapping,
                                         ActionForm form,
                                         HttpServletRequest request,
                                         HttpServletResponse response) {
    List list = null;
    list = dao.selectBig(Integer.valueOf(request.getParameter("big")));
    int pageNumber = list.size(); //计算出有多少条记录
    int maxPage = pageNumber; //计算有多少页数
    String number = request.getParameter("i");
    if (maxPage % 4 == 0) {
      maxPage = maxPage / 4;
    }
    else {
      maxPage = maxPage / 4 + 1;
    }
    if (number == null) {
      number = "0";
    }
    request.setAttribute("number", String.valueOf(number));
    request.setAttribute("maxPage", String.valueOf(maxPage));
    request.setAttribute("pageNumber", String.valueOf(pageNumber));
    request.setAttribute("list", list);
    request.setAttribute("smallList",
                         small.selectOneBigId(Integer.valueOf(request.
        getParameter("big"))));
    return mapping.findForward("goodSelectBigHead");
  }

//设置特价价格
  public ActionForward managerFreePirce(ActionMapping mapping,
                                        ActionForm form,
                                        HttpServletRequest request,
                                        HttpServletResponse response) {
    GoodsForm goodsForm = (GoodsForm) form;
    String mark = request.getParameter("mark").trim();
    String id = request.getParameter("id").trim();
    if (mark.equals("0")) {
      goodsForm.setFreePrice(Float.valueOf("0"));
      goodsForm.setMark(Integer.valueOf("0"));
      goodsForm.setId(Integer.valueOf(id));
      dao.managerPrice(goodsForm);
      request.setAttribute("success", "删除特价成功！！");
    }
    else {
      String free = request.getParameter("free").trim();
      goodsForm.setFreePrice(Float.valueOf(free));
      goodsForm.setMark(Integer.valueOf(mark));
      goodsForm.setId(Integer.valueOf(id));