


Write a page to check whether the Alibaba Cloud account exists_html/css_WEB-ITnose
Write a page to check whether the Alibaba Cloud account exists
I was bored and wrote a page for Alibaba Cloud account registration before, mainly to check whether the account exists. Now share it:
Mainly implemented through webrequest:
1. Write an Alibaba Cloud email class:
using System;using System.Collections.Generic;using System.Web;/// <summary>/// Summary description for AliEmal/// </summary>public class AliEmail{ public ContentClass content; public bool hasError;}public class ContentClass{ public string message; public int status; public bool success;}
2. Write an email verification class:
using System;using System.Collections.Generic;using System.Net;using System.Net.Mail;using System.Text;using System.Text.RegularExpressions;using System.Web;/// <summary>/// Summary description for Util/// </summary>public class AliUtil{ public AliUtil() { } // // TODO: Add constructor logic here // #region 验证邮箱验证邮箱 /**/ /// <summary> /// 验证邮箱 /// </summary> /// <param name="source"></param> /// <returns></returns> public static bool IsEmail(string source) { return Regex.IsMatch(source, @"^\w+([-+.']\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*$", RegexOptions.IgnoreCase); } public static bool HasEmail(string source) { return Regex.IsMatch(source, @"[A-Za-z0-9](([_\.\-]?[a-zA-Z0-9]+)*)@([A-Za-z0-9]+)(([\.\-]?[a-zA-Z0-9]+)*)\.([A-Za-z]{2,})", RegexOptions.IgnoreCase); } #endregion #region 验证网址 /**/ /// <summary> /// 验证网址 /// </summary> /// <param name="source"></param> /// <returns></returns> public static bool IsUrl(string source) { return Regex.IsMatch(source, @"^(((file|gopher|news|nntp|telnet|http|ftp|https|ftps|sftp)://)|(www\.))+(([a-zA-Z0-9\._-]+\.[a-zA-Z]{2,6})|([0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}))(/[a-zA-Z0-9\&%_\./-~-]*)?$", RegexOptions.IgnoreCase); } public static bool HasUrl(string source) { return Regex.IsMatch(source, @"(((file|gopher|news|nntp|telnet|http|ftp|https|ftps|sftp)://)|(www\.))+(([a-zA-Z0-9\._-]+\.[a-zA-Z]{2,6})|([0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}))(/[a-zA-Z0-9\&%_\./-~-]*)?", RegexOptions.IgnoreCase); } #endregion #region 验证日期 /**/ /// <summary> /// 验证日期 /// </summary> /// <param name="source"></param> /// <returns></returns> public static bool IsDateTime(string source) { try { DateTime time = Convert.ToDateTime(source); return true; } catch { return false; } } #endregion #region 验证手机号 /**/ /// <summary> /// 验证手机号 /// </summary> /// <param name="source"></param> /// <returns></returns> public static bool IsMobile(string source) { return Regex.IsMatch(source, @"^1[35]\d{9}$", RegexOptions.IgnoreCase); } public static bool HasMobile(string source) { return Regex.IsMatch(source, @"1[35]\d{9}", RegexOptions.IgnoreCase); } #endregion #region 验证IP /**/ /// <summary> /// 验证IP /// </summary> /// <param name="source"></param> /// <returns></returns> public static bool IsIP(string source) { return Regex.IsMatch(source, @"^(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9])\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9]|0)\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9]|0)\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[0-9])$", RegexOptions.IgnoreCase); } public static bool HasIP(string source) { return Regex.IsMatch(source, @"(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9])\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9]|0)\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9]|0)\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[0-9])", RegexOptions.IgnoreCase); } #endregion #region 验证身份证是否有效 /**/ /// <summary> /// 验证身份证是否有效 /// </summary> /// <param name="Id"></param> /// <returns></returns> public static bool IsIDCard(string Id) { if (Id.Length == 18) { bool check = IsIDCard18(Id); return check; } else if (Id.Length == 15) { bool check = IsIDCard15(Id); return check; } else { return false; } } public static bool IsIDCard18(string Id) { long n = 0; if (long.TryParse(Id.Remove(17), out n) == false || n < Math.Pow(10, 16) || long.TryParse(Id.Replace('x', '0').Replace('X', '0'), out n) == false) { return false;//数字验证 } string address = "11x22x35x44x53x12x23x36x45x54x13x31x37x46x61x14x32x41x50x62x15x33x42x51x63x21x34x43x52x64x65x71x81x82x91"; if (address.IndexOf(Id.Remove(2)) == -1) { return false;//省份验证 } string birth = Id.Substring(6, 8).Insert(6, "-").Insert(4, "-"); DateTime time = new DateTime(); if (DateTime.TryParse(birth, out time) == false) { return false;//生日验证 } string[] arrVarifyCode = ("1,0,x,9,8,7,6,5,4,3,2").Split(','); string[] Wi = ("7,9,10,5,8,4,2,1,6,3,7,9,10,5,8,4,2").Split(','); char[] Ai = Id.Remove(17).ToCharArray(); int sum = 0; for (int i = 0; i < 17; i++) { sum += int.Parse(Wi[i]) * int.Parse(Ai[i].ToString()); } int y = -1; Math.DivRem(sum, 11, out y); if (arrVarifyCode[y] != Id.Substring(17, 1).ToLower()) { return false;//校验码验证 } return true;//符合GB11643-1999标准 } public static bool IsIDCard15(string Id) { long n = 0; if (long.TryParse(Id, out n) == false || n < Math.Pow(10, 14)) { return false;//数字验证 } string address = "11x22x35x44x53x12x23x36x45x54x13x31x37x46x61x14x32x41x50x62x15x33x42x51x63x21x34x43x52x64x65x71x81x82x91"; if (address.IndexOf(Id.Remove(2)) == -1) { return false;//省份验证 } string birth = Id.Substring(6, 6).Insert(4, "-").Insert(2, "-"); DateTime time = new DateTime(); if (DateTime.TryParse(birth, out time) == false) { return false;//生日验证 } return true;//符合15位身份证标准 } #endregion #region 是不是Int型的 /**/ /// <summary> /// 是不是Int型的 /// </summary> /// <param name="source"></param> /// <returns></returns> public static bool IsInt(string source) { Regex regex = new Regex(@"^(-){0,1}\d+$"); if (regex.Match(source).Success) { if ((long.Parse(source) > 0x7fffffffL) || (long.Parse(source) < -2147483648L)) { return false; } return true; } return false; } #endregion #region 看字符串的长度是不是在限定数之间 一个中文为两个字符 /**/ /// <summary> /// 看字符串的长度是不是在限定数之间 一个中文为两个字符 /// </summary> /// <param name="source">字符串</param> /// <param name="begin">大于等于</param> /// <param name="end">小于等于</param> /// <returns></returns> public static bool IsLengthStr(string source, int begin, int end) { int length = Regex.Replace(source, @"[^\x00-\xff]", "OK").Length; if ((length <= begin) && (length >= end)) { return false; } return true; } #endregion #region 是不是中国电话,格式010-85849685 /**/ /// <summary> /// 是不是中国电话,格式010-85849685 /// </summary> /// <param name="source"></param> /// <returns></returns> public static bool IsTel(string source) { return Regex.IsMatch(source, @"^\d{3,4}-?\d{6,8}$", RegexOptions.IgnoreCase); } #endregion #region 邮政编码 6个数字 /**/ /// <summary> /// 邮政编码 6个数字 /// </summary> /// <param name="source"></param> /// <returns></returns> public static bool IsPostCode(string source) { return Regex.IsMatch(source, @"^\d{6}$", RegexOptions.IgnoreCase); } #endregion #region 中文 /**/ /// <summary> /// 中文 /// </summary> /// <param name="source"></param> /// <returns></returns> public static bool IsChinese(string source) { return Regex.IsMatch(source, @"^[\u4e00-\u9fa5]+$", RegexOptions.IgnoreCase); } public static bool hasChinese(string source) { return Regex.IsMatch(source, @"[\u4e00-\u9fa5]+", RegexOptions.IgnoreCase); } #endregion #region 验证是不是正常字符 字母,数字,下划线的组合 /**/ /// <summary> /// 验证是不是正常字符 字母,数字,下划线的组合 /// </summary> /// <param name="source"></param> /// <returns></returns> public static bool IsNormalChar(string source) { return Regex.IsMatch(source, @"[\w\d_]+", RegexOptions.IgnoreCase); } #endregion}
3. Write a simple front-end verification page:
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="AliCheck.aspx.cs" Inherits="AliCheck" %><!DOCTYPE html><html xmlns="http://www.w3.org/1999/xhtml"><head runat="server"> <title></title></head><body> <form id="form1" runat="server"> <div> <div> 阿里云邮箱: <asp:TextBox ID="AliEmailName" runat="server"></asp:TextBox> <asp:Button ID="Check" runat="server" Text="检查是否存在" OnClick="Check_Click" /> <div style="color:red;" id="showError" runat="server"></div> </div> </div> </form></body></html>
4. Write a verification page Backend:
using System;using System.Collections.Generic;using System.IO;using System.Net;using System.Text;using System.Threading;using System.Web;using System.Web.UI;using System.Web.UI.WebControls;public partial class AliCheck : System.Web.UI.Page{ public T Deserializer<T>(string jsonString) { T item = default(T); item = Newtonsoft.Json.JsonConvert.DeserializeObject<T>(jsonString); return item; } protected void Page_Load(object sender, EventArgs e) { } public string CheckTest(string email) { string responseBody = string.Empty; string serverUri = string.Format("https://passport.alipay.com/register/emailRpc/checkEmail.json"); string requestBody = string.Format("email={0}&fromSite=6&_csrf_token=TB2pedPPWRa0ly94qNozE5", email.Replace("@","%40")); ////set limit for supporting 200 connection ServicePointManager.DefaultConnectionLimit = 200; HttpWebRequest request = (HttpWebRequest)WebRequest.Create(serverUri); ////extend timeout for decrease request timeout re-trying times request.Timeout = 60 * 1000; request.Method = @"PUT"; request.ContentType = "application/x-www-form-urlencoded; charset=UTF-8"; UTF8Encoding encoding = new UTF8Encoding(); byte[] data = encoding.GetBytes(requestBody); request.ContentLength = data.Length; request.KeepAlive = true; request.Accept = "application/json, text/javascript, */*; q=0.01"; request.Headers.Set("Cache-Control", @"no-cache"); request.Referer = "https://passport.alipay.com/register/register.htm?fromSite=6¶ms=%7B%22site%22%3A%226%22%2C%22ru%22%3A%22http%3A%2F%2Fbuy.aliyun.com%2F%22%7D"; request.UserAgent = "Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.2; WOW64; Trident/6.0)"; request.Headers.Set("Cookie", @"_umdata=5A25312D486F1DD6724ACD835355F6D7578488DB731A9A20CC7F64E6E8EE8F56B5D2A44298446384A482322D8118098ECAEDCEACF887A1CD93603238261471E839CB6075F6DCEA1B; cna=hOp6DPkMlF4CAafc6OGg639S; ALIPAYJSESSIONID=RZ02mGHIM9XnmVgsHI8rD5gmaLXOfkauthRZ02; ctoken=1bt0CRyVd15nSnCX0RHEAI2T7PsExY; umt=HB7279bc2f80e20b02ad3c6a4f6d573692; ac-stat=no; JSESSIONID=PO966Z91-R05SQP6XK00KCQCZTNYY1-AXMUZ1ZH-RVPO1; _ufaon_=6; ALI_USER_REGISTER_TOKEN=b37b07d33b6de91b787781a6d32c844c; tmp0=eNrz4A12DQ729PeL9%2FV3cfUxiK7OTLFSCvC3NDOLsjTUDTIwDQ4MMIvwNjDwdg50jgrxi4w01HWM8A2NMozy0A0KC%2FA3VNJJLrEyNDGwMLG0sDA1NjW00ElMRhPIrbAyqI0CAGg3HQg%3D"); bool isSent = false; int retryCount = 0; string errorStr = string.Empty; while (!isSent && retryCount <= 100) { retryCount++; try { using (Stream newStream = request.GetRequestStream()) { newStream.Write(data, 0, data.Length); } isSent = true; } catch (Exception exc) { if (!errorStr.Contains(exc.ToString())) { errorStr += exc.ToString(); } ////Re-try when operation timeout if (!exc.ToString().Contains("The operation has timed out")) { LogError(exc.ToString()); } Thread.Sleep(1000); } } if (retryCount > 100) { string err = string.Format("request.GetRequestStream try 100 times and timeout! detail error: {0}", errorStr); LogError(err); return err; } HttpWebResponse response = (HttpWebResponse)request.GetResponse(); using (StreamReader stream = new StreamReader(response.GetResponseStream(), Encoding.UTF8)) { responseBody = stream.ReadToEnd(); } ////need to close or abort request for each call to fix timeout issue, otherwise it will fail when the 3rd call! if (request != null) { request.Abort(); } if (response.StatusCode != HttpStatusCode.OK) { string err=string.Format("Failed, error:{1}", response.ToString()); LogError(err); return err; } if (response != null) { response.Close(); } return responseBody; } public void LogError(string content) { File.AppendAllText("log.log","ERROR: "+content + Environment.NewLine); } protected void Check_Click(object sender, EventArgs e) { if (!AliUtil.IsEmail(AliEmailName.Text.Trim())) { showError.InnerHtml = "邮箱不合法!"; return; } AliEmail email = Deserializer<AliEmail>(CheckTest(AliEmailName.Text.Trim())); if (email.hasError == false && email.content.success == true) { showError.InnerHtml = "恭喜您!可以注册!"; } else { showError.InnerHtml=email.content.message; } //showError.InnerHtml = CheckTest(AliEmailName.Text.Trim()); }}
Demo address: http://qq.ihaonet.com/alicheck.aspx. If you are interested, you can try it yourself.

The future trends of HTML are semantics and web components, the future trends of CSS are CSS-in-JS and CSSHoudini, and the future trends of JavaScript are WebAssembly and Serverless. 1. HTML semantics improve accessibility and SEO effects, and Web components improve development efficiency, but attention should be paid to browser compatibility. 2. CSS-in-JS enhances style management flexibility but may increase file size. CSSHoudini allows direct operation of CSS rendering. 3.WebAssembly optimizes browser application performance but has a steep learning curve, and Serverless simplifies development but requires optimization of cold start problems.

The roles of HTML, CSS and JavaScript in web development are: 1. HTML defines the web page structure, 2. CSS controls the web page style, and 3. JavaScript adds dynamic behavior. Together, they build the framework, aesthetics and interactivity of modern websites.

The future of HTML is full of infinite possibilities. 1) New features and standards will include more semantic tags and the popularity of WebComponents. 2) The web design trend will continue to develop towards responsive and accessible design. 3) Performance optimization will improve the user experience through responsive image loading and lazy loading technologies.

The roles of HTML, CSS and JavaScript in web development are: HTML is responsible for content structure, CSS is responsible for style, and JavaScript is responsible for dynamic behavior. 1. HTML defines the web page structure and content through tags to ensure semantics. 2. CSS controls the web page style through selectors and attributes to make it beautiful and easy to read. 3. JavaScript controls web page behavior through scripts to achieve dynamic and interactive functions.

HTMLisnotaprogramminglanguage;itisamarkuplanguage.1)HTMLstructuresandformatswebcontentusingtags.2)ItworkswithCSSforstylingandJavaScriptforinteractivity,enhancingwebdevelopment.

HTML is the cornerstone of building web page structure. 1. HTML defines the content structure and semantics, and uses, etc. tags. 2. Provide semantic markers, such as, etc., to improve SEO effect. 3. To realize user interaction through tags, pay attention to form verification. 4. Use advanced elements such as, combined with JavaScript to achieve dynamic effects. 5. Common errors include unclosed labels and unquoted attribute values, and verification tools are required. 6. Optimization strategies include reducing HTTP requests, compressing HTML, using semantic tags, etc.

HTML is a language used to build web pages, defining web page structure and content through tags and attributes. 1) HTML organizes document structure through tags, such as,. 2) The browser parses HTML to build the DOM and renders the web page. 3) New features of HTML5, such as, enhance multimedia functions. 4) Common errors include unclosed labels and unquoted attribute values. 5) Optimization suggestions include using semantic tags and reducing file size.

WebdevelopmentreliesonHTML,CSS,andJavaScript:1)HTMLstructurescontent,2)CSSstylesit,and3)JavaScriptaddsinteractivity,formingthebasisofmodernwebexperiences.


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