www.pudn.com > snmp4jmibbrowser.zip > ServletLogin.java

package com.av; 
import javax.servlet.*; 
import javax.servlet.http.*; 
import java.io.PrintWriter; 
import java.io.IOException; 
 
public class ServletLogin extends HttpServlet  { 
  private static final String CONTENT_TYPE = "text/html; charset=windows-1252"; 
  private final String user = "user"; 
  private final String password = "userMib"; 
  private final String adm = "adminMib"; 
  private final String passAdm = "`admin123"; 
 
  public void init(ServletConfig config) throws ServletException { 
    super.init(config); 
  } 
 
  public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { 
    doPost(request, response); 
  } 
 
  public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { 
    String logout = request.getParameter("logout"); 
    if(logout!=null){ 
        request.getSession().removeAttribute("user"); 
        response.sendRedirect("index.jsp");       
    }else{ 
      String usr = request.getParameter("user"); 
      String pass = request.getParameter("pass"); 
      if(usr.equals(user) && pass.equals(password)){ 
        request.getSession().setAttribute("user", usr); 
      }else if(usr.equals(adm) && pass.equals(passAdm)){ 
        request.getSession().setAttribute("user", usr); 
      }else{ 
        String err = "Invalid password!"; 
        if(!usr.equals(user)&&!usr.equals(adm)){ 
          err = "Invalid user!"; 
        } 
        response.sendRedirect("index.jsp?err="+err); 
      } 
       
      if(request.getSession().getAttribute("user")!=null){ 
        response.sendRedirect("system/hosts.jsp"); 
      } 
    } 
  } 
}