40c150bcb41d001c1322d4bb636059c7

来自「使用JSP+Servlet+Hibernate+Struts实现的一个学生软件发」· 代码 · 共 98 行

package edu.neu.sspp.servlet.user;

import java.io.IOException;

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

import org.hibernate.Transaction;

import edu.neu.sspp.SSPPLogger;
import edu.neu.sspp.hibernate.HibernateSessionFactory;
import edu.neu.sspp.hibernate.TComment;
import edu.neu.sspp.hibernate.TCommentDAO;
import edu.neu.sspp.hibernate.TProject;
import edu.neu.sspp.hibernate.TProjectDAO;

public class DeleteComment extends HttpServlet {

	/**
	 * Constructor of the object.
	 */
	public DeleteComment() {
		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>
	 *	
	 *没进行身份验证，使用过滤器进行验证
	 *
	 * 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 {

		TCommentDAO commentDAO = new TCommentDAO();
		TComment comment = commentDAO.findById(request.getParameter("cID"));
		
		TProject project = comment.getTProject();
		
		
		project.setCount(project.getCount() - 1);
		
		Transaction transaction = HibernateSessionFactory.getSession().beginTransaction();
	
		commentDAO.delete(comment);

		transaction.commit();
		
		HibernateSessionFactory.closeSession();
		
		SSPPLogger.logInfo(request.getParameter("name") + " 删除评论" + " IP:" + request.getRemoteAddr());
		
		response.sendRedirect("../../" + request.getParameter("name") + "/" + project.getProjUid() + "#comment");
	}

	/**
	 * 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 {

		doGet(request, response);
	}

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

}