articlesplitservlet.java

基于MVC模式的文章采集检索系统

package com.liubin.servlet.article;

import java.io.IOException;
import java.io.PrintWriter;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.util.*;
import com.liubin.model.*;
import com.liubin.service.article.ArticleService;

public class ArticleSplitServlet extends HttpServlet {

	/**
	 * Constructor of the object.
	 */
	public ArticleSplitServlet() {
		super();
	}

	/**
	 * Destruction of the servlet. <br>
	 */
	public void destroy() {
		super.destroy(); // Just puts "destroy" string in log
		// Put your code here
	}

	/**
	 * The doGet method of the servlet. <br>
	 *
	 * This method is called when a form has its tag value method equals to get.
	 * 
	 * @param request the request send by the client to the server
	 * @param response the response send by the server to the client
	 * @throws ServletException if an error occurred
	 * @throws IOException if an error occurred
	 */
	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
			request.setCharacterEncoding("gbk");
			response.setContentType("text/html;charset=gbk");
			String pagenum=request.getParameter("pagenum");
			if(pagenum==null){
				pagenum="1";
			}
			String subitem_id =(String)request.getAttribute("subitem_id");
			if(subitem_id==null){
				subitem_id=request.getParameter("subitem_id");
			}
			if(subitem_id==null){
				subitem_id="01001";
			}
			ArticleService service=new ArticleService();
			int total=service.getCountArticles(subitem_id);
			int pagesize=5;
			int pagecount=(total+pagesize-1)/pagesize;
			List<Article>list=service.getArticleById(subitem_id, Integer.parseInt(pagenum));
			request.setAttribute("pagenum", pagenum);
			request.setAttribute("subitem_id", subitem_id);
			request.setAttribute("list", list);
			request.setAttribute("pagecount", pagecount);
			request.getRequestDispatcher("article/articleManager.jsp").forward(request, response);
			
			
			}

	/**
	 * The doPost method of the servlet. <br>
	 *
	 * This method is called when a form has its tag value method equals to post.
	 * 
	 * @param request the request send by the client to the server
	 * @param response the response send by the server to the client
	 * @throws ServletException if an error occurred
	 * @throws IOException if an error occurred
	 */
	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {

	this.doGet(request, response);
	}

	/**
	 * Initialization of the servlet. <br>
	 *
	 * @throws ServletException if an error occurs
	 */
	public void init() throws ServletException {
		// Put your code here
	}

}