searchplaneservlet.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.PlaneMsgBean;
import com.wxpn.tutorial.ec.util.StringUtil;

/**
 * Servlet implementation class for Servlet: UserListServlet
 */
public class SearchPlaneServlet extends javax.servlet.http.HttpServlet implements
		javax.servlet.Servlet {
	/*
	 * (non-Java-doc)
	 * 
	 * @see javax.servlet.http.HttpServlet#HttpServlet()
	 */
	public SearchPlaneServlet() {
		super();
	}

	/*
	 * (non-Java-doc)
	 * 
	 * @see javax.servlet.http.HttpServlet#doGet(HttpServletRequest request,
	 *      HttpServletResponse response)
	 */
	protected void doGet(HttpServletRequest request,
			HttpServletResponse response) throws ServletException, IOException {
		
		try {
		   doPost(request,response);
		} catch (Throwable t) {
			getServletContext().log(t.getMessage());
		}
	}

	/*
	 * (non-Java-doc)
	 * 
	 * @see javax.servlet.http.HttpServlet#doPost(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 clause = "";
		String keyword1 = StringUtil.nullToStr(request.getParameter("keyword1"));
		String keyword2 = StringUtil.nullToStr(request.getParameter("keyword2"));
		//String province = request.getParameter("province");
        System.out.println(keyword1+"searchplae"+keyword2);
		
		if (!keyword1.trim().equals("")) {
			clause = "where departplace like '%" + keyword1 + "%'";
		
		if (!keyword2.trim().equals("")) {
			clause =clause+ " and arriveplace like '%" + keyword2 + "%'";
		} 
	   }else if(!keyword2.trim().equals("")){
		     clause = "where departplace like '%" + keyword2 + "%'";
	    }
	    

		int pagesize = 10;
		String page = request.getParameter("page");
		PlaneMsgBean mgr = new PlaneMsgBean();
		int count = mgr.getCount(clause);// 记录总数
		System.out.print(count+"ddddddddddddddd");
		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;
		}
		if (page == null) {
			page = "1";
		}
		request.setAttribute("totalPageNum", new Integer(totalPageNum));
		System.out.print(count+"eeeeeeeeeeeeee");
		Collection c = mgr.getAll(pagesize, Integer.parseInt(page), clause);
		
		request.setAttribute("c", c);
		try {
			System.out.print(count+"ddddddddddddddd");
			request.getRequestDispatcher("/search/planesearch.jsp").forward(request,
					response);
		} catch (Throwable t) {
			getServletContext().log(t.getMessage());
		}
	}
}