logincheckservlet.java

简单的流言板系统,用myeclipse进行编写的,采用简单的jstl+javabean+servlet+jsp,属于三层架构.

package me.work.servlets;

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

public class LoginCheckServlet extends HttpServlet
{
    public void doPost(HttpServletRequest req, HttpServletResponse resp)
               throws ServletException,IOException
    {
        HttpSession session=req.getSession();
        String randomCode=(String)session.getAttribute("randomCode");
        if(null==randomCode)
        {
            resp.sendRedirect("./page/index.jsp");
            return;
        }
        
        String reqRandom=req.getParameter("random");
        
        req.setCharacterEncoding("GBK");
        resp.setContentType("text/html;charset=GBK");
        PrintWriter out=resp.getWriter();
        
        if(randomCode.equals(reqRandom))
        {
            
            out.println("验证码匹配！");
        }
        else
        {
            out.println("验证码校验失败，请返回重新输入!");
        }
        out.close();
    }
}