packageservlets;importjava.io.IOException;importjavax.servlet.http.HttpServlet;importjavax.servlet.http.HttpServletRequest;importjavax.servlet.http.HttpServletResponse;im...

package servlets;

import java.io.IOException;

import javax.servlet.http.HttpServlet;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import javax.servlet.*;

public class LoginServlet extends HttpServlet {

public void doGet(HttpServletRequest request, HttpServletResponse response)

throws ServletException, IOException {

doPost(request,response);

}

public void doPost(HttpServletRequest req, HttpServletResponse resp)

throws ServletException, IOException {

String user=req.getParameter("user");

RequestDispatcher rd=null;

if(user!=null&&user.equals("admin")){

req.getSession().setAttribute("login", "true");

rd=req.getRequestDispatcher("/admin.html");

rd.forward(req, resp);}

else if(user!=null&&user.equals("common")){

req.getSession().setAttribute("login", "true");

rd=req.getRequestDispatcher("/common.html");

rd.forward(req, resp);

}

else{

resp.sendRedirect("/ch08/login.html");

}

}

}

web的配置

LoginServlet

servlets.LoginServlet

LoginServlet

/servlet/LoginServlet

LoginValidationFilter

servlets.LoginValidationFilter

login.html

选择用户
管理员 普通用户

展开