PHP 无刷新注册

js的

var xmlHTTP;
//检测用户名是否存在
function CheckName(userName)
{
createXMLHTTP();

var url = "rh_userRegEvent.aspx?name='"+userName+"'&Event=check";

xmlHTTP.Open("GET",url,true);

xmlHTTP.onreadystatechange=checkUserName;

xmlHTTP.send(null);
}

// 注册用户
function regUser(userName,userPwd)
{
createXMLHTTP();

userName = document.getElementById("userName").value;
userPwd = document.getElementById("userPwd").value;

if(userName=="")
{
window.alert("用户名不能为空!");

document.getElementById("userName").focus();

return false;
}
if(userPwd=="")
{
window.alert("密码不能为空!");

document.getElementById("userPwd").focus();

return false;
}

var url = "rh_userRegEvent.aspx?name='"+userName+"'&pwd='"+userPwd+"'&Event=Reg";

xmlHTTP.Open("GET",url,true);

xmlHTTP.onreadystatechange=regUserInfo;

xmlHTTP.send(null);
}

function createXMLHTTP()
{
if(window.XMLHttpRequest)
{
//xmlHTTP = new XMLHttpRequest();

xmlHTTP = new ActiveXObject("Microsoft.XMLHTTP");
}

else if(window.ActiveXObject)
{
try
{
xmlHTTP = new ActiveXObject("Msxml2.XMLHTTP");
}
catch(e)
{
}

try
{
xmlHTTP = new ActiveXObject("Microsoft.XMLHTTP");
}
catch(e)
{
}
}
// if (typeof(xmlHttp) == "undefined")
// {
// alert("不能创建XMLHttp对象实例！");
// return false;
// }
}

// 回调函数
function checkUserName()
{
if(xmlHTTP.readystate==4)
{
if(xmlHTTP.status==200)
{
if(xmlHTTP.responseText == "true")
{
document.getElementById("imgName").src = "../images/icon/true.gif";

document.getElementById("btnReg").disabled = false;
}

if(xmlHTTP.responseText == "false")
{
document.getElementById("imgName").src="../images/icon/false.gif";

document.getElementById("btnReg").disabled=true;
}
}
}
}

//回调函数

function regUserInfo()
{
if(xmlHTTP.readystate==4)
{
if(xmlHTTP.status==200)
{
if(xmlHTTP.responseText=="true")
{
document.getElementById("userName").value = "";

document.getElementById("userPwd").value = "";

window.alert("注册成功！！");
}

if(xmlHTTP.responseText=="false")
{
window.alert("注册失败！！");
}
}
}
}

主界面的

<head runat="server">
<title>无标题页</title>

<script src="../js/CreateObject.js" type="text/javascript"></script>

<link rel="Stylesheet" type="text/css" href="../css/css.css" />

</head>
<body onload="document.getElementById('userName').focus()">

<form id="form1" runat="server">
<div>

<div style="margin-top:20px" align="center">无刷新的用户注册</div><br /><br />

<table align="center" style=" 442px; height: 145px">
<tr>
<td style=" 100px">
用户名：
</td>
<td style=" 100px">
<input id="userName" type="text" onkeyup="CheckName(document.getElementById('userName').value);" /></td>
<td style=" 100px">
<img src="" id="imgName" alt=""/></td>
</tr>
<tr>
<td style=" 100px">
密码：</td>
<td style=" 100px">
<input id="userPwd" type="text" /></td>
<td style=" 100px">
</td>
</tr>
<tr>
<td colspan="3">
<input id="btnReg" style=" 69px" type="button" value="注册" onclick="regUser();" /></td>
</tr>
</table>
</div>
</form>
</body>

请求界面的[color=#FF0000][/color]
User user = new User();

if (Request.QueryString["Event"].ToString() == "check")
{
if (user.checkName(Request.QueryString["name"].ToString()))
{
Response.Write("true");

Response.End();
}
else
{
Response.Write("false");

Response.End();
}
}
if (Request.QueryString["Event"].ToString() == "Reg")
{
if (user.regUser(Request.QueryString["name"].ToString(), Request.QueryString["pwd"].ToString()))
{
Response.Write("true");

Response.End();
}
else
{
Response.Write("false");

Response.End();
}
}

还有一个类

public class User
{
public User()
{
//
//TODO: 在此处添加构造函数逻辑
//
}

public ArrayList getUser(string userName)
{
SqlConnection con = SqlConString.getConnnectionString();

con.Open();

string sql = "select UserName from tUser where UserName = '" + userName + "'";

SqlCommand cmd = new SqlCommand(sql, con);

SqlDataReader dr = cmd.ExecuteReader();

ArrayList al = new ArrayList();

while (dr.Read())
{
al.Add(dr["UserName"].ToString());
}

dr.Close();

con.Close();

return al;
}

public bool checkName(string userName)
{
SqlConnection con = SqlConString.getConnnectionString();

con.Open();

string sql = "select * from tUser where UserName = " + userName + "";

SqlDataAdapter sda = new SqlDataAdapter(sql,con);

DataSet ds = new DataSet();

sda.Fill(ds);

int m = ds.Tables[0].Rows.Count;

if (m <= 0)
{
return true;
}
else
{
return false;
}
}

public bool regUser(string userName, string userPwd)
{
SqlConnection con = SqlConString.getConnnectionString();

con.Open();

SqlCommand cmd = new SqlCommand("insert into tUser(UserName,UserPwd) values (" + userName + "," + userPwd + ")", con);

int i = cmd.ExecuteNonQuery();

if (i > 0)
{
return true;
}
else
{
return false;
}
}
}

PHP 无刷新 注册

PHP 无刷新注册