bigtypeaction.java~8~

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.BigTypeForm;
import org.apache.struts.action.Action;
import java.util.List;
import com.dao.BigTypeDao;
//商品大类别信息
public class BigTypeAction
    extends Action {
  private int action;
  private BigTypeDao dao = null;
  public ActionForward execute(ActionMapping mapping,
                               ActionForm form,
                               HttpServletRequest request,
                               HttpServletResponse response) {
    dao = new BigTypeDao();
    this.action = Integer.parseInt(request.getParameter("action"));
    switch (action) {
      case 0: {
        return bigTypeSelect(mapping, form, request, response); //全部查询商品信息
      }
      case 1: {
        return bigTypeForward(mapping, form, request, response); //转向页面
      }

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

//转向页面
  public ActionForward bigTypeForward(ActionMapping mapping,
                                      ActionForm form,
                                      HttpServletRequest request,
                                      HttpServletResponse response) {

    return mapping.findForward("bigTypeForward");
  }

  //全部查询商品信息
  public ActionForward bigTypeSelect(ActionMapping mapping,
                                     ActionForm form,
                                     HttpServletRequest request,
                                     HttpServletResponse response) {
    List list = dao.selectBig();
    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 % 7 == 0) {
      maxPage = maxPage / 7;
    }
    else {
      maxPage = maxPage / 7 + 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("bigTypeSelect");
  }

}