deleteproject.java

使用JSP+Servlet+Hibernate+Struts实现的一个学生软件发布平台

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.TProject;
import edu.neu.sspp.hibernate.TProjectDAO;
import edu.neu.sspp.hibernate.TUser;

public class DeleteProject extends HttpServlet {

	/**
	 * Constructor of the object.
	 */
	public DeleteProject() {
		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 {
		
		TProjectDAO projectDAO = new TProjectDAO();
		TProject project = projectDAO.findById(request.getParameter("projID"));
		
		TUser user = project.getTUser();
		
		if(!user.getUserUid().equals(request.getSession().getAttribute("id"))) {
			SSPPLogger.logWarn("用户越权操作" + "IP:" + request.getRemoteAddr());
			
			response.sendRedirect(request.getContextPath() + "/error_page/error_500.jsp");

			return;
		}
		
		user.setCount(user.getCount() - 1);
		
		Transaction transaction = HibernateSessionFactory.getSession().beginTransaction();
		
		projectDAO.delete(project);
		
		transaction.commit();
		
		HibernateSessionFactory.closeSession();
		
		SSPPLogger.logInfo(user.getUserName() + " 删除项目" + " IP:" + request.getRemoteAddr());
		
		response.sendRedirect("../../" + request.getParameter("name"));
	}

	/**
	 * 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
	}

}