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  • jsp第九次作业

    <%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
    <%
    String path = request.getContextPath();
    String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
    %>
    <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
    <html>
      <head>
        <base href="<%=basePath%>"> 
        <title>注册</title>  
        <meta http-equiv="pragma" content="no-cache">
        <meta http-equiv="cache-control" content="no-cache">
        <meta http-equiv="expires" content="0">   
        <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
        <meta http-equiv="description" content="This is my page">
        <!--
        <link rel="stylesheet" type="text/css" href="styles.css">
        -->
      </head> 
      <body>
       <form action="do.jsp" method="post">
    用户名:<input type="text" name="uname"/><br>
    密   码:<input type="password" name="upwd"/><br>
    <input type="submit" value="注册">
    </form>
      </body>
    </html>
    

      

    <%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
    <%
    String path = request.getContextPath();
    String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
    %>
    <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
    <html>
      <head>
        <base href="<%=basePath%>">
        <title>登录</title>
        <meta http-equiv="pragma" content="no-cache">
        <meta http-equiv="cache-control" content="no-cache">
        <meta http-equiv="expires" content="0">   
        <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
        <meta http-equiv="description" content="This is my page">
        <!--
        <link rel="stylesheet" type="text/css" href="styles.css">
        -->
      </head>
      <script type="text/javascript">
       function mycheck() {
    //判断验证码是否为空
     if (form1.validationCode.value==""){
    alert("验证码不能为空,请输入验证码!");
     form1.validationCode.focus();
     return;
     }
     //判断验证码是否正确
     if (form1.validationCode.value != form1.validationCode1.value) {
     alert("请输入正确的验证码!!");
     form1.validationCode.focus();
     return;
     }
     form1.submit1();
     }
     </script>
      <body>
       <form action="logincheck.jsp" name="form1" method="post">
       用户名:<input type="text" name="userName" size="18"><br>
       密    码:<input type="password" name="password" size="19"><br>
       验证码:<input type="text" name="validationCode" onKeyDown="if(event.keyCode==13){form1.submit.focus();}"size="4">
      <%
      int intmethod1=(int)((((Math.random())*5))+1);
      int intmethod2=(int)((((Math.random())*5))+1);
      int intmethod3=(int)((((Math.random())*5))+1);
      int intmethod4=(int)((((Math.random())*5))+1); 
      String intsum=intmethod1+""+intmethod2+intmethod3+intmethod4;
       %>
       <input type="hidden" name="validationCode1" value="<%=intsum%>">
       <img style="height:20px;weight:20px" src="images/<%=intmethod1 %>.png">
       <img style="height:20px;weight:20px" src="images/<%=intmethod2 %>.png">
       <img style="height:20px;weight:20px" src="images/<%=intmethod3 %>.png">
       <img style="height:20px;weight:20px" src="images/<%=intmethod4 %>.png">
       <br> 
    <input type="submit" value="登录">
    <a href="register.jsp">注册</a>
    </form>
      </body>
    </html>
    

      

    <%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
    <%@page import="com.gd.entity.Users"%>
    <%@page import="com.gd.entity.Msg"%>
    <%@page import="com.gd.dao.MsgDao"%>
    <%@page import="com.gd.dao.UsersDao"%>
    <%
    String path = request.getContextPath();
    String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
    %>
    <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
    <html>
      <head>
        <base href="<%=basePath%>">
        <title>登录</title>
        <meta http-equiv="pragma" content="no-cache">
        <meta http-equiv="cache-control" content="no-cache">
        <meta http-equiv="expires" content="0">   
        <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
        <meta http-equiv="description" content="This is my page">
        <!--
        <link rel="stylesheet" type="text/css" href="styles.css">
        -->
      </head>
      <body>
      <%
      request.setCharacterEncoding("UTF-8");
    Users a=new Users();
        String uname = request.getParameter("uname");
        String upwd = request.getParameter("upwd");
        String email = request.getParameter("uemail");
        a.setUsername(uname);
        a.setPassword(upwd);
        a.setEmail(email);
        UsersDao as=new UsersDao();
        as.addUsers(a);
        request.getRequestDispatcher("index.jsp").forward(request, response);
    %>
      </body>
    </html>
    

      

    <%@page import="com.gd.entity.Users"%>
    <%@page import="com.gd.dao.UsersDao"%>
    <%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
    <%
        request.setCharacterEncoding(UTF-8");
        String uname = request.getParameter("uname");
        String upwd = request.getParameter("upwd");
        UsersDao ud = new UsersDao();
        if(request.getParameter("validationCode1").equals(request.getParameter("validationCode")))         
    {          
        if (ud.login(uname, upwd)){    
        //登录成功,创建User对象,并放入session
            Users u=new Users();
            u.setUsername(uname);
            u.setPassword(upwd);
            session.setAttribute("user", u);
            request.getRequestDispatcher("main.jsp").forward(request, response);
        }
        else{
            response.sendRedirect("index.jsp");
            }
        }
            else{          
                    response.sendRedirect("index.jsp");        
                          }    
    %>
    

      

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  • 原文地址:https://www.cnblogs.com/zz2333/p/12927293.html
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