openarticleaction.java

ajax实例源程序

package cn.com.blogonline;

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

import javax.servlet.ServletConfig;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;


public class OpenArticleAction extends HttpServlet {
    
	public void init(ServletConfig config) throws ServletException {
    }
    
    /*
     *  处理<GET> 请求方法.
     */
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
    	//设置接收信息的字符集
    	request.setCharacterEncoding("UTF-8");
    	//接收浏览器端提交的信息
		String articleId = request.getParameter("articleid");
	    HttpSession session = request.getSession(true);
		int iArticleId = Integer.parseInt(articleId);
		/*
		 * 保存文章对象及BlogID
		 */		
	    DbOperate	db=new DbOperate();
		Article article = db.getArticle(iArticleId);
		int iBlogId = article.getBlogid();
		session.setAttribute(Constants.CUR_ARTICLE_KEY,article);
		session.setAttribute(Constants.CUR_BLOGID_KEY,new Integer(iBlogId));
		
		/*
		 *左侧框架页信息设置
		 */
		Blog blog = db.getBlog(iBlogId);
		blog.setVisitcount(blog.getVisitcount() + 1);
		db.update(blog);
		session.setAttribute(Constants.VISIT_BLOG_KEY,blog);

		List sortList=db.getBlogSorts(iBlogId);
		session.setAttribute(Constants.SORT_LIST_KEY,sortList);
		
		List linkList=db.getBlogLinks(iBlogId);
		session.setAttribute(Constants.LINK_LIST_KEY,linkList);
		
		List feedBackList=db.getFeedBacks(iArticleId);
	    /*
	     * 分页显示
	     */
    	List  dispList=new ArrayList();
    	for (int i=0;i<feedBackList.size();i++){
			if (i< Constants.ARTICLE_PAGE_SIZE){
				dispList.add(feedBackList.get(i));
			}
	    }
		session.setAttribute(Constants.FEEDBACK_LIST_KEY,dispList);
		session.setAttribute(Constants.CUR_PAGEID_KEY,new Integer(0));
	    response.sendRedirect("/BlogOnline/otherBlogMain.jsp");
        
    }
}