【免费】JSP验证码及刷新例子资源-CSDN文库

共11个文件

jsp：2个

xml：1个

project：1个

验证码

java

1星需积分: 0 10 浏览量 2008-11-28 14:49:51 上传评论收藏 9KB RAR 举报

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.rar （11个子文件）

验证码登录及刷新

code

.project 1KB

.settings

org.eclipse.core.resources.prefs 98B

.mymetadata 285B

WebRoot

WEB-INF

web.xml 773B

lib

classes

check.class 2KB

index.jsp 5KB

META-INF

MANIFEST.MF 39B

css.css 187B

.myeclipse

src

check.java 3KB

.classpath 340B

import java.io.IOException; import java.io.PrintWriter; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import javax.servlet.http.HttpSession; public class check extends HttpServlet { /** * Constructor of the object. */ public check() { super(); } /** * Destruction of the servlet. <br> */ public void destroy() { super.destroy(); // Just puts "destroy" string in log // Put your code here } /** * The doGet method of the servlet. <br> * * This method is called when a form has its tag value method equals to get. * * @param request the request send by the client to the server * @param response the response send by the server to the client * @throws ServletException if an error occurred * @throws IOException if an error occurred */ public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { response.setContentType("text/html"); request.setCharacterEncoding("gb2312"); response.setCharacterEncoding("gb2312"); HttpSession hs=request.getSession(); PrintWriter out = response.getWriter(); String username=request.getParameter("username"); String password=request.getParameter("password"); String code=request.getParameter("code"); String scode=(String) hs.getAttribute("rand"); System.out.println("++++++++++++++++++++++="+scode); if(!code.equals(scode)){ out.println("验证码错误"); }else if(username.equals("123")&&password.equals("123")){ out.println("进去了！"); } out .println("<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\">"); out.println("<HTML>"); out.println(" <HEAD><TITLE>A Servlet</TITLE></HEAD>"); out.println(" <BODY>"); out.println(" </BODY>"); out.println("</HTML>"); out.flush(); out.close(); } /** * The doPost method of the servlet. <br> * * This method is called when a form has its tag value method equals to post. * * @param request the request send by the client to the server * @param response the response send by the server to the client * @throws ServletException if an error occurred * @throws IOException if an error occurred */ public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { doGet(request,response); } /** * Initialization of the servlet. <br> * * @throws ServletException if an error occure */ public void init() throws ServletException { // Put your code here } }

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