loginservlet.java

Java中的集合类的讲解

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

public class LoginServlet extends HttpServlet
{
    public void doGet(HttpServletRequest req, HttpServletResponse resp)
               throws ServletException,IOException
    {
        
        resp.setContentType("text/html;charset=gb2312");
        
        String name=req.getParameter("user");
        String pwd=req.getParameter("password");
        
        if(name!=null && pwd!=null && name.equals("zhangsan") && 
           pwd.equals("1234"))
        {
            resp.sendRedirect("success.html");
        }
        else
        {
            resp.sendError(HttpServletResponse.SC_SERVICE_UNAVAILABLE,"服务器忙，请稍后再登录!");
        }
        
    }
    
    public void doPost(HttpServletRequest req, HttpServletResponse resp)
               throws ServletException,IOException
    {
        doGet(req,resp);
    }
}