showmcservlet.java

电子商城

package com.lmh.servlet.font;

import java.io.IOException;
import java.util.List;

import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import com.lmh.dao.impl.OracleMcDAO;
import com.lmh.dao.impl.OracleMcTypeDAO;
import com.lmh.dao.vo.McBean;

public class ShowMcServlet extends HttpServlet {

	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {

		OracleMcDAO mcDao = new OracleMcDAO();
		OracleMcTypeDAO mcTypeDao = new OracleMcTypeDAO();

		List mcTypeList = mcTypeDao.searchMcType(-1, null);
		request.setAttribute("mcTypeList", mcTypeList);
		
		int nid = -1;
		int maxid = -1;
		int minid = -1;
		String sname = null;
		int pastart = -1;
		int paend = -1;
		int countAll = 0;
		int curPage = 1;
		int totalPage = 0;
		int pagesize = 0;
	
		
		try {
			nid = Integer.parseInt(request.getParameter("nid"));
		} catch (Exception en) {

		}
		try {
			maxid = Integer.parseInt(request.getParameter("maxid"));
		} catch (Exception en) {

		}
		try {
			minid = Integer.parseInt(request.getParameter("minid"));
		} catch (Exception en) {

		}
		try {
			sname = request.getParameter("sname");
		} catch (Exception en) {

		}
		try {
			curPage = Integer.parseInt(request.getParameter("curPage"));
		} catch (Exception en) {

		}
		try {
			pagesize = Integer.parseInt(this.getServletConfig()
					.getInitParameter("pagesize"));
		} catch (Exception en) {

		}
		pastart = (curPage - 1) * pagesize + 1;
		paend = curPage * pagesize;
		/**
		 * 符合条件的总记录数
		 */
		countAll = mcDao.getCount(sname, -1, -1, maxid, minid);
		totalPage = (countAll - 1) / pagesize + 1;

		request.setAttribute("countAll", countAll);
		request.setAttribute("curPage", curPage);
		request.setAttribute("totalPage", totalPage);

		List mcList = mcDao.selectMc(-1, sname, -1, -1, maxid, minid, pastart,
				paend);
		request.setAttribute("mcList", mcList);

		RequestDispatcher rd = null;
		
		if (nid == -1) {
			rd = request.getRequestDispatcher("/font/show.jsp");
		} else {
			McBean mcBean = mcDao.selectMc(nid);
			request.setAttribute("mcBean", mcBean);
			rd = request.getRequestDispatcher("/font/detail.jsp");
		}

		rd.forward(request, response);

	}
}