logout.java

来自「JDBC数据库高级编程源代码」· Java 代码 · 共 30 行

package jdbcbook.msgboard;

import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;

import jdbcbook.pub.util.*;

/**
 * 用户退出登录处理方法
 */
public class Logout extends HttpServlet 
{

	public void doGet(HttpServletRequest request, HttpServletResponse response)
		throws IOException, ServletException
	{
		// 使用户的Session失效
		HttpSession session = request.getSession();
		session.invalidate();

		// 设置提示信息
		RequestUtil.setMsg( this, request, "logout" );

		// 返回用户登录页面
		RequestDispatcher dispatcher = request.getRequestDispatcher( "logon.jsp" );
		dispatcher.forward( request, response );
	}
}