deletefeedback.java

本博客系统是在J2EE平台上用Hibernate框架技术和MVC模式构建

package com.blog;

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

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

import com.blog.tableclass.Article;
import com.blog.tableclass.FeedBack;

public class DeleteFeedback extends HttpServlet {

	/**
	 * Constructor of the object.
	 */
	public DeleteFeedback() {
		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 {
		String feedbackid = request.getParameter("feedbackId");
		HttpSession session = request.getSession(true);
		Article article = (Article)session.getAttribute(Constants.CUR_ARTICLE_KEY);
		OperateDatabase	db=new OperateDatabase();
		FeedBack feedback = db.getFeedBack(Integer.parseInt(feedbackid));
		db.delete(feedback);
		List feedbackList=db.getFeedBacks(article.getId());
		session.setAttribute(Constants.FEEDBACK_LIST_KEY,feedbackList);
		response.sendRedirect("/NewBlog/users/FeedbackDetail.jsp");
	}

	/**
	 * 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 {
		
	}

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

}