citysearchservlet.java

这是jsp通用模块导航的程序原代码,里面有新闻,bbs等jsp与javabean结合的程序.

package com.wxpn.tutorial.ec.servlet;

import java.io.IOException;
import java.util.Collection;

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

import com.wxpn.tutorial.ec.bean.CityMsg;
import com.wxpn.tutorial.ec.bean.RouteMsgBean;
import com.wxpn.tutorial.ec.util.StringUtil;

/**
 * Servlet implementation class for Servlet: UserListServlet
 */
public class CitySearchServlet extends javax.servlet.http.HttpServlet implements
		javax.servlet.Servlet {
	/*
	 * (non-Java-doc)
	 * 
	 * @see javax.servlet.http.HttpServlet#HttpServlet()
	 */
	public CitySearchServlet() {
		super();
	}
	protected void doGet(HttpServletRequest request,
			HttpServletResponse response) throws ServletException, IOException {		
			response.setHeader("Pragma","No-cache");
			response.setHeader("Cache-Control","no-cache");
			response.setDateHeader("Expires", 0);
		try {
			System.out.println(StringUtil.nullToStr(request.getParameter("keyword"))+"haha");
		   doPost(request,response);
		} catch (Throwable t) {
			getServletContext().log(t.getMessage());
		}
	}
	/*
	 * (non-Java-doc)
	 * 
	 * @see javax.servlet.http.HttpServlet#doGet(HttpServletRequest request,
	 *      HttpServletResponse response)
	 */
	protected void doPost(HttpServletRequest request,
			HttpServletResponse response) throws ServletException, IOException {
		response.setHeader("Pragma","No-cache");
		response.setHeader("Cache-Control","no-cache");
		response.setDateHeader("Expires", 0);
        String keyword = StringUtil.nullToStr(request.getParameter("keyword"));
		String clause="";
		RouteMsgBean mgr = new RouteMsgBean();
		String page = "1";
		int pagesize=10;
		System.out.println(keyword+"haha");
		if(!keyword.equals("")){
			clause = "where departplace like '%"+keyword+"%'  or destplace like '%"+keyword+"%'";
		}
		
		//int id = citymsg.getId(clause);
		//request.setAttribute("CityId",String.valueOf(id));
		int count = mgr.getCount(clause);// 记录总数
		System.out.println(count);
		int totalPageNum = count / pagesize;// 逻辑页数
		// 如果纪录总数除以每页的显示个数,余数大于0,那么
		// 逻辑页数应该为商+1
		if ((count % pagesize) > 0) {
			totalPageNum += 1;
		}
		request.setAttribute("totalPageNum", new Integer(totalPageNum));
		Collection c = mgr.getAll(clause);
		request.setAttribute("c", c);
		try {
			request.getRequestDispatcher("/travel/detail.jsp").forward(
					request, response);
		} catch (Throwable t) {
			getServletContext().log(t.getMessage());
		}
	}
}