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ajax 注册表单验证(2008-10-09 11:59:05)
标签：ajax 杂谈  分类：AJAX学习
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="ManagerControl.aspx.cs" Inherits="ManagerControl" %>

 

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <meta http-equiv="content-type" content="text/html; charset=GB2312" />
    <title>王子的宫殿</title>
    <meta name="keywords" content="" />
    <meta name="description" content="" />
    <link rel="stylesheet" type="text/css" href="default.css" />
    <script language="javascript" type="text/javascript" src="js/main.js">
</script>
</head>
<body>
    <div id="outer">
 <div id="upbg" style="left: 0px; top: 0px"></div>
 <div id="inner">
  <div id="header">
   <h1><span>学生作业</span>上传系统<sup>v1.0</sup></h1>
   <h2>by 薛晓龙</h2>
  </div> 
  <div id="splash"></div> 
  <div id="menu" style="left: 0px; top: 0px">
   <ul>
    <li class="first"><a href="Default.aspx">主页</a></li>
    <li><a href="#">作业上传</a></li>
    <li><a href="#">作业查看</a></li>
    <li><a href="#">资源下载</a></li>
    <li><a href="Myinfo.aspx">联系我</a></li>
    <li><a href="Manager.aspx">后台管理</a></li>
   </ul>
  <div id="date">August 1, 2006</div>
  </div>
  <div id="primarycontent" style="left:0px; top: 0px; width:100%; height:80%">
  <div id="contentManager">
   <div id="Managercontent" style=" height:500px; text-align:center">
   <span id="Loginheader"><a href="ManagerControl.aspx"><img src="images/Reg.gif" alt="免费注册" /></a></span>
             <table style="margin-top:30px; height: 172px;">
                 <tr>
                     <td  class="RegSign">
                     用户名：
                     </td>
                     <td class="RegTd">
                         <input id="RegName" class="text"  type="text" onblur="CheckUserName()" /></td>
                     <td id="userNError" class="RegError">
                     </td>
                 </tr>
                 <tr>
                     <td class="RegSign">
                         密码：</td>
                     <td class="RegTd">
                         <input id="RegPw" class="text" type="password" onblur="CheckisNullPw()" /></td>
                     <td id="PwError" class="RegError">
                     </td>
                 </tr>
                 <tr>
                     <td class="RegSign">
                         学号：</td>
                     <td class="RegTd"><input id="RegNum" class="text" type="text" onblur="CheckisNullNUm()" /></td>
                     <td  id="NumError" class="RegError">
                     </td>
                 </tr>
                 <tr>
                     <td class="RegSign">
                         班级：</td>
                     <td class="RegTd">
                         <select id="RegClass" class="text"  onchange="CheckisNullClass()">
                             <option selected="selected">——请选择——</option>
                             <option>地理信息051</option>
                             <option>地理信息052</option>
                         </select>
                         <%-- <input id="RegClass" class="text" type="text" />--%></td>
                     <td id="ClassError" class="RegError">
                     </td>
                 </tr>
                 <tr>
                     <td class="RegSign">
                     </td>
                     <td class="RegTd">
                     <img src="images/zhuce.gif" alt="提交" style="cursor:pointer" id="IMG1" language="javascript" onclick="return Register()" /></td>
                     <td class="RegError">
                     </td>
                 </tr>
             </table>
             <div id="showReginMessage"></div>
   </div>
  </div>
  </div>
  </div>
  </div>
 
</body>
</html>
cs文件

 

using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Data.OleDb;
using System.Text.RegularExpressions;
public partial class CheckRegin : System.Web.UI.Page
{
    protected static OleDbConnection conn = new OleDbConnection();
    protected static OleDbCommand comm = new OleDbCommand();

    protected void Page_Load(object sender, EventArgs e)
    {
        Response.ContentType = "text/xml";
        bool passed = ValiLogin(Request["userName"]);
        bool allNotNull = CheckAll(Request["userName"], Request["passWord"], Request["userNum"], Request["userClass"]);
        string userName=Request["userName"];
        string passWord=Request["passWord"];
        string userNum=Request["userNum"];
        string userClass=Request["userClass"];
        string message = "出错啦，用户名错误或密码错误";
        if (passed)
        {
            message = "此用户不存在，可以注册";
        }
        else
        {
            message = "此用户已经存在";
          
        }
        string textxml;
        textxml = "<response>" + "<passed>" + passed.ToString() + "</passed>" + "<message>" + message + "</message>" + "</response>";
        Response.Write(textxml);
    }

    private bool CheckAll(string userName, string passWord, string userNum, string userClass)
    {
        bool allNotNull;
        if (userName != null && passWord != null && userNum != null && userClass != null)
        {
            allNotNull = true;

        }
        else
        {
            allNotNull = false;
        }
        return allNotNull;
    }

    private bool ValiLogin(string userName)
    {
        bool isPassed = true;
        string sqlstr = "select userName  from studentInfo where userName = " + "'" + userName + "'";
        bool isNull = ExecuteSql(sqlstr);

        if (isNull)
        {
            isPassed = true;

        }
        else
        {
            isPassed = false;

        }
        return isPassed;
    }
    //进行数据库的连接
    private static void openConnection()
    {
        if (conn.State == ConnectionState.Closed)
        {
            conn.ConnectionString = System.Web.Configuration.WebConfigurationManager.ConnectionStrings["connStr"].ConnectionString;
            comm.Connection = conn;
            try
            {
                conn.Open();
            }
            catch (Exception e)
            {
                throw new Exception(e.Message);
            }
        }
    }
    private static void closeConnection()
    {
        if (conn.State == ConnectionState.Open)
            conn.Close();
        conn.Dispose();
        comm.Dispose();
    }
    public static bool ExecuteSql(string sqlstr)
    {
        OleDbDataReader dataR;
        bool isNull = true;
        try
        {
            openConnection();
            comm.CommandType = CommandType.Text;
            comm.CommandText = sqlstr;
            dataR = comm.ExecuteReader();
            if (dataR.Read())
            {
                isNull = false;
            }
            else
            {
                isNull = true;
            }
        }
        catch (Exception s)
        {
            throw (s);
        }
        finally
        {
            //关闭连接
            closeConnection();
        }
        return isNull;
    }
}

js文件

var xmlHttp;
var isNameNull;
var isPwNull;
var isNumNull;
var isClassNull;
var isNull;
function IMG1_onclick() {
  CheckIsValid();
}
//验证登陆是否合法
function CheckIsValid()
{
  CreatXmlHttpRequest();
  var userName=document.getElementById("AdminText");
  var passWord=document.getElementById("AdminPasswordText");
  var url="CheckLogin.aspx?userName="+escape(userName.value)+"&passWord="+escape(passWord.value);
  xmlHttp.open("GET",url,true);
  xmlHttp.onreadystatechange=callback;
  xmlHttp.send(null);
}
//判断注册名字是否为空
function CheckisNullName()
{
  var userName=document.getElementById("RegName");
  var messageArea=document.getElementById("userNError");
  var fontColor;
  if(userName.value!="")
  {
    isNameNull=false;
  }
  else
  {
    fontColor="red";
    imgUrl="images/beError.gif";
   
    messageArea.innerHTML="<img src="+imgUrl+"/>"+"<font color="+fontColor+">"+"请认真填写"+"</font>";
   
    isNameNull=true;
  }
}
//检查注册密码是否存在
function CheckisNullPw()
{
  var passWord=document.getElementById("RegPw");
  var messageArea=document.getElementById("PwError");
  var fontColor;
  if(passWord.value!="")
  {
    imgUrl="images/MOREok.gif";
    messageArea.innerHTML="<img src="+imgUrl+"/>";
    isPwNull=false;
  }
  else
  {
    fontColor="red";
    imgUrl="images/beError.gif";
   
    messageArea.innerHTML="<img src="+imgUrl+"/>"+"<font color="+fontColor+">"+"请认真填写"+"</font>";
   
    isPwNull=true;
  }
}
//检查注册学号是否存在
function CheckisNullNUm()
{
  var userNum=document.getElementById("RegNum");
  var messageArea=document.getElementById("NumError");
  var fontColor;
  if(userNum.value!="")
  {
    imgUrl="images/MOREok.gif";
    messageArea.innerHTML="<img src="+imgUrl+"/>";
    isNumNull=false;
  }
  else
  {
    fontColor="red";
    imgUrl="images/beError.gif";
   
    messageArea.innerHTML="<img src="+imgUrl+"/>"+"<font color="+fontColor+">"+"请认真填写"+"</font>";
   
    isNumNull=true;
  }
}
//检查注册班级是否存在
function CheckisNullClass()
{
  var RegClass=document.getElementById("RegClass");
  var index=RegClass.selectedIndex;
  var messageArea=document.getElementById("ClassError");
  var fontColor;
  if(index==1||index==2)
  {
        imgUrl="images/MOREok.gif";
       
        messageArea.innerHTML="<img src="+imgUrl+"/>";
      isClassNull=false;
  }
    else
    {
        fontColor="red";
        imgUrl="images/beError.gif";
       
        messageArea.innerHTML="<img src="+imgUrl+"/>"+"<font color="+fontColor+">"+"请认真填写"+"</font>";
       
        isClassNull=true;
    }
  }
//检查注册用户名是否存在
function CheckUserName()
{   
   CheckisNullName();
  if(isNameNull==false)
  {
      CreatXmlHttpRequest();
      var userName=document.getElementById("RegName");
      var passWord=document.getElementById("RegPw");
      var userNum=document.getElementById("RegNum");
      var userClass=document.getElementById("RegClass");
      var url="CheckRegin.aspx?userName="+escape(userName.value);
      xmlHttp.open("GET",url,true);
      xmlHttp.onreadystatechange=callReg;
      xmlHttp.send(null);
  }
  else
  {
        return;
  }
}
//验证是否注册中所有项都非空
function CheckisNull()
{
  if(isNameNull==false&&isPwNull==false&&isNumNull==false&&isClassNull==false)
  {
    isNull=false;
  }
  else
  {
    isNull=true;
  }
}
//创建XmlHttpRequest
function CreatXmlHttpRequest()
{
try {
   xmlHttp = new ActiveXObject("Msxml2.XMLHTTP");
} catch (e) {
   try {
     xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
   } catch (e2) {
     xmlHttp = false;
   }
}
if (!xmlHttp && typeof XMLHttpRequest != 'undefined') {
   xmlHttp = new XMLHttpRequest();
}

}
//验证登陆是否合法的回调函数
function callback()
{
  if(xmlHttp.readyState==4)
  {
    if(xmlHttp.status==200)
    {
      var mes=xmlHttp.responseXML.getElementsByTagName("message")[0].firstChild.data;
      var val=xmlHttp.responseXML.getElementsByTagName("passed")[0].firstChild.data;
      setMessage(mes,val);
    }
  }
}
//验证注册的回调函数
function callReg()
{
  if(xmlHttp.readyState==4)
  {
    if(xmlHttp.status==200)
    {
      var mes=xmlHttp.responseXML.getElementsByTagName("message")[0].firstChild.data;
      var val=xmlHttp.responseXML.getElementsByTagName("passed")[0].firstChild.data;
      setRegMessage(mes,val);
    }
  }
}
//设置登陆验证后的信息提示显示
function setMessage(message,isValid)
{
  var messageArea=document.getElementById("showMessage");
  var fontColor;
 if(isValid =="True")
 {
  window.location.href="ManagerControl.aspx";
  }
  else
  {
    fontColor="red";
    imgUrl="images/404.jpg";
   
    messageArea.innerHTML="<img src="+imgUrl+"/>"+"<font color="+fontColor+">"+message+"</font>";
  }
}
//设置注册验证后的信息显示
function  setRegMessage(message,isValid)
{
  var messageArea=document.getElementById("userNError");
  var fontColor;
 if(isValid =="True")
 {
   fontColor="green";
   imgUrl="images/MOREok.gif";
   
    messageArea.innerHTML="<img src="+imgUrl+"/>"+"<font color="+fontColor+">"+message+"</font>";
  }
  else
  {
   fontColor="red";
   imgUrl="images/beError.gif";
   
    messageArea.innerHTML="<img src="+imgUrl+"/>"+"<font color="+fontColor+">"+message+"</font>";
  }
}
function Register()
{
      CheckisNull();
      if( isNull==false)
      {
      CreatXmlHttpRequest();
      var userName=document.getElementById("RegName");
      var passWord=document.getElementById("RegPw");
      var userNum=document.getElementById("RegNum");
      var userClass=document.getElementById("RegClass");
      var userClassIndex=userClass.selectedIndex;
      var url="ReginInfo.aspx?userName="+escape(userName.value)+"&passWord="+escape(passWord.value)+"&userNum="+escape(userNum.value)+"&userClassIndex="+escape(userClassIndex);
      xmlHttp.open("GET",url,true);
      xmlHttp.onreadystatechange=RegOk;
      xmlHttp.send(null);
      }
      else
      {
         return;
      }
}
function RegOk()
{
  if(xmlHttp.readyState==4)
  {
    if(xmlHttp.status==200)
    {
      var mes=xmlHttp.responseXML.getElementsByTagName("message")[0].firstChild.data;
      var pas=xmlHttp.responseXML.getElementsByTagName("passed")[0].firstChild.data;
      var userName=xmlHttp.responseXML.getElementsByTagName("userName")[0].firstChild.data;
      var passWord=xmlHttp.responseXML.getElementsByTagName("passWord")[0].firstChild.data;
      var userNum=xmlHttp.responseXML.getElementsByTagName("userNum")[0].firstChild.data;
      var userClass=xmlHttp.responseXML.getElementsByTagName("userClass")[0].firstChild.data;
      var titletip=xmlHttp.responseXML.getElementsByTagName("titletip")[0].firstChild.data;
      setRegOkMessage(mes,pas,userName,passWord,userNum,userClass,titletip);
    }
  }
 }
function  setRegOkMessage(message,passed,userName,passWord,userNum,userClass,titletip)
{
 var messageArea=document.getElementById("showReginMessage");
  var fontColor;
 if(passed =="True")
 {
   fontColor="green";
   imgUrl="images/MOREok.gif";
   
    messageArea.innerHTML="<img src="+imgUrl+"/>"+"<font color="+fontColor+">"+message+"用户名:"+userName+"密码:"+passWord+"学号:"+userNum+"班级:"+userClass+"</br>"+"提示信息："+titletip+"</font>";
    countDown();
  }
  else
  {
   fontColor="red";
   imgUrl="images/beError.gif";
   
    messageArea.innerHTML="<img src="+imgUrl+"/>"+"<font color="+fontColor+">"+message+"</font>";
  }
}
function countDown()
{
    setTimeout("location='Manager.aspx'",3000);

}

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