package com.servlet; 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; @WebServlet("/servlet/LoginServlet") public class LoginServlet extends HttpServlet{ @Override protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { String codes = req.getSession().getAttribute("codes").toString(); String mycode = req.getParameter("checkcode"); resp.setCharacterEncoding("utf-8"); PrintWriter out = resp.getWriter(); if(mycode.toUpperCase().equals(codes)){ out.println("验证码输入正确!"); }else{ out.println("验证码输入错误!"); } out.flush(); out.close(); } }