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java特定用户登录_求教!!!用 jsp+servlet 怎样控制指定用户名登录页面啊!

时间:2024-03-09 16:53:33

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java特定用户登录_求教!!!用 jsp+servlet 怎样控制指定用户名登录页面啊!

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package cn.zmx;

import java.io.IOException;

import java.io.PrintWriter;

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 LoginServlet

*/

@WebServlet("/LoginServlet")

public class LoginServlet extends HttpServlet {

private static final long serialVersionUID = 1L;

/**

* @see HttpServlet#HttpServlet()

*/

public LoginServlet() {

super();

// TODO Auto-generated constructor stub

}

/**

* @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)

*/

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

// TODO Auto-generated method stub

doPost(request,response);

}

/**

* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)

*/

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

// TODO Auto-generated method stub

response.setContentType("text/html;charset=utf-8");

PrintWriter out = response.getWriter();

// String result=null;

String name = new String (request.getParameter("name").getBytes("ISO-8859-1"),"UTF-8");

String passwd = new String (request.getParameter("passwd").getBytes("ISO-8859-1"),"UTF-8");

//获取Httpsession对象

HttpSession session = request.getSession();

//保存到session

session.setAttribute("name", name);

session.setAttribute("passwd",passwd);

//if(name==""||name==null){

// result="请输入正确名";

// response.sendRedirect("login.jsp");

// return;

//}

//设置有效时间

session.setMaxInactiveInterval(20*60);

out.print("");

out.print("

");

out.print("

");

out.print("欢迎访问");

out.print("

");

out.print("");

out.print("

");

out.print("

"+name+",欢迎访问

");

out.print("");

out.print("注销");

out.print("");

out.print("");

}

}

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