LoginOut.java

package com.rlovep.login;

import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

/**
 * Servlet implementation class LoginOut
 */
@WebServlet("/LoginOut")
public class LoginOut extends HttpServlet {
	private static final long serialVersionUID = 1L;
       
    /**
     * @see HttpServlet#HttpServlet()
     */
    public LoginOut() {
        super();
        // TODO Auto-generated constructor stub
    }

	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		//得到session对象
		HttpSession session=request.getSession();
		//将名字属性删掉
		if(session!=null)
		{
			session.removeAttribute("name");
		}
		//跳到登陆页面
		response.sendRedirect(request.getContextPath()+"/login.html");
	}

	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		doGet(request, response);
	}

}