主要技术点:jquery ajax以及blur事件
当用户名输入框失去焦点的时候就会触发blur事件,然后进行ajax请求,获得结果(true或者false),如果请求结果为true,就把用户名输入框图片替换成ok,并且输出文字:恭喜您, 这个帐号可以注册,否则就替换成图片no,并且输出文字:账号已存在
源代码:
前台:
复制代码 代码如下:
<%@ Page Language="C#" MasterPageFile="~/Top_Down.master" AutoEventWireup="true" CodeFile="RegisterMember.aspx.cs"Inherits="Member_RegisterMember" Title="注册用户" %>
后台事件:
复制代码 代码如下:
<%@ WebHandler Language="C#" Class="GetMemberInfo" %>
using System;
using System.Web;
using Common;
using czcraft.Model;
using czcraft.BLL;
using System.Web.SessionState;
public class GetMemberInfo : IHttpHandler,IRequiresSessionState
{
// //记录日志
private static readonly log4net.ILog logger =log4net.LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
public void ProcessRequest(HttpContext context)
{
String methodName = context.Request["method"];
if (!string.IsNullOrEmpty(methodName))
CallMethod(methodName, context);
}
///
/// 根据业务需求调用不同的方法
///
/// 方法
/// 上下文
public void CallMethod(string Method, HttpContext context)
{
switch (Method)
{
case "CheckExistUserName":
CheckExistUserName(context);
break;
//case "SearchMember":
// SearchMember(context);
// break;
case "SaveMemberInfo":
SaveMemberInfo(context);
break;
//case "RemoveMember":
// RemoveMember(context);
// break;
//case "GetMember":
// GetMember(context);
// break;
default:
return;
}
}
///
/// 验证帐号是否存在
///
///
public void CheckExistUserName(HttpContext context)
{
string username = context.Request["username"];
if (Tools.IsValidInput(ref username, true))
{
context.Response.Write(new memberBLL().CheckExistUserName(username));
}
}
///
/// 保存用户信息
///
///
public void SaveMemberInfo(HttpContext context)
{
try
{
//表单读取
string txtUserName = context.Request["txtUserName"];
string txtPwd = context.Request["txtPwd"];
string txtEmail = context.Request["txtEmail"];
string txtCheckCode = context.Request["txtCheckCode"];
//验证码校验
if (!txtCheckCode.Equals(context.Session["checkcode"].ToString()))
{
return;
}
//字符串sql注入检测
if (Tools.IsValidInput(ref txtUserName, true) && Tools.IsValidInput(ref txtPwd, true) && Tools.IsValidInput(ref txtEmail, true))
{
member info = new member();
info.username = txtUserName;
info.password = txtPwd;
info.Email = txtEmail;
info.states = "0";
if (new memberBLL().AddNew(info) > 0)
{
SMTP smtp = new SMTP(info.Email);
string webpath = context.Request.Url.Scheme + "://" + context.Request.Url.Authority + "/Default.aspx";
smtp.Activation(webpath, info.username);//发送激活邮件
JScript.AlertAndRedirect("注册用户成功!!", "../Default.aspx");
}
else {
JScript.AlertAndRedirect("注册用户失败!", "../Default.aspx");
}
}
}
catch (Exception ex)
{
logger.Error("错误!", ex);
}
}
public bool IsReusable {
get {
return false;
}
}
}