C#Url操作类封装、仿Node.Js中的Url模块实例

 //string url = "http://www.gongjuji.net:8081";//string url = "http://www.gongjuji.net/";//string url = "http://www.gongjuji.net/abc";// string url = "http://www.gongjuji.net/abc/1234.html";string url = "http://www.gongjuji.net/abc/1234.html?name=张三&age=1234#one#two";//string url = "http://www.gongjuji.net/abc/1234.html?name=&age=#one#two";//string url = "/abc/123.html?name=张三&age=1234#one#two";// string url = "https://mp.weixin.qq.com/debug/cgi-bin/apiinfo?t=index&type=%E7%94%A8%E6%88%B7%E7%AE%A1%E7%90%86&form=%E8%8E%B7%E5%8F%96%E5%85%B3%E6%B3%A8%E8%80%85%E5%88%97%E8%A1%A8%E6%8E%A5%E5%8F%A3%20/user/get";UrlAnalyze _url = new UrlAnalyze(url);JObject obj = JObject.FromObject(_url);Console.WriteLine(obj);//添加或修改参数_url.AddOrUpdateSearch("page", "2");_url.AddOrUpdateSearch("name", "李四");//重新生成链接参数Console.WriteLine(_url.GetUrl());Console.WriteLine(_url.GetUrl(true));

//string source = "工具集：http://www.gongjuji.net";string source = @"工具集：  http://www.gongjuji.net  爱汉字：http://hanzi.tianma3798.cn"; List<string> result = UrlAnalyze.GetUrlList(source);foreach (var item in result){  Console.WriteLine(item);}//替换成a标签string result2 = UrlAnalyze.ReplaceToA(source);Console.WriteLine(result2);</string>

/// <summary>/// Url地址的格式化和反格式化/// </summary>public class UrlAnalyze{  /// <summary>  /// 协议名称  /// </summary>  public string Protocol { get; set; }  /// <summary>  /// 是否以反斜杠结尾  /// </summary>  public bool Slashes { get; set; }  /// <summary>  /// 验证信息，暂时不使用  /// </summary>  public string Auth { get; set; }  /// <summary>  /// 全小写主机部分，包括端口  /// </summary>  public string Host  {    get    {      if (this.Port == null)        return this.HostName;      return string.Format("{0}:{1}", this.HostName, this.Port);    }  }  /// <summary>  /// 端口，为空时http默认是80  /// </summary>  public int? Port { get; set; }  /// <summary>  /// 小写主机部分  /// </summary>  public string HostName { get; set; }  /// <summary>  /// 页面锚点参数部分 #one#two  /// </summary>  public string Hash { get; set; }  /// <summary>  /// 链接查询参数部分(带问号) ?one=1&two=2  /// </summary>  public string Search { get; set; }  /// <summary>  /// 路径部分  /// </summary>  public string PathName { get; set; }  /// <summary>  /// 路径+参数部分(没有锚点)  /// </summary>  public string Path  {    get    {      if (string.IsNullOrEmpty(this.Search))        return this.PathName;      return PathName + Search;    }  }  /// <summary>  /// 转码后的原链接  /// </summary>  public string Href { get; set; }   /// <summary>  /// 参数的key=value 列表  /// </summary>  private Dictionary<string, string=""> _SearchList = null;  #region 初始化处理  /// <summary>  /// 空初始化  /// </summary>  public UrlAnalyze() { _SearchList = new Dictionary<string, string="">(); }  /// <summary>  /// 初始化处理  /// </summary>  ///<param name="url">指定相对或绝对链接  public UrlAnalyze(string url)  {    //1.转码操作    this.Href = HttpUtility.UrlDecode(url);    InitParse(this.Href);    //是否反斜杠结尾    if (!string.IsNullOrEmpty(PathName))      this.Slashes = this.PathName.EndsWith("/");    //初始化参数列表    _SearchList = GetSearchList();  }  /// <summary>  /// 将字符串格式化成对象时初始化处理  /// </summary>  private void InitParse(string url)  {    //判断是否是指定协议的绝对路径    if (url.Contains("://"))    {      // Regex reg = new Regex(@"(/w+):////([^/:]+)(:/d*)?([^ ]*)");      Regex reg = new Regex(@"(/w+):////([^/:]+)(:/d*)?(.*)");      Match match = reg.Match(url);      //协议名称      this.Protocol = match.Result("$1");      //主机      this.HostName = match.Result("$2");      //端口      string port = match.Result("$3");      if (string.IsNullOrEmpty(port) == false)      {        port = port.Replace(":", "");        this.Port = Convert.ToInt32(port);      }      //路径和查询参数      string path = match.Result("$4");      if (string.IsNullOrEmpty(path) == false)        InitPath(path);    }    else    {      InitPath(url);    }  }  /// <summary>  /// 字符串url格式化时，路径和参数的初始化处理  /// </summary>  ///<param name="path">  private void InitPath(string path)  {    Regex reg = new Regex(@"([^#?& ]*)(/??[^#]*)(#?[^?& ]*)");    Match match = reg.Match(path);    //路径和查询参数    this.PathName = match.Result("$1");    this.Search = match.Result("$2");    this.Hash = match.Result("$3");  }  #endregion   #region 参数处理  /// <summary>  /// 获取当前参数解析结果字典列表  /// </summary>  /// <returns></returns>  public Dictionary<string, string=""> GetSearchList()  {    if (_SearchList != null)      return _SearchList;    _SearchList = new Dictionary<string, string="">();    if (!string.IsNullOrEmpty(Search))    {      Regex reg = new Regex(@"(^|&)?(/w+)=([^&]*)", RegexOptions.Compiled);      MatchCollection coll = reg.Matches(Search);      foreach (Match item in coll)      {        string key = item.Result("$2").ToLower();        string value = item.Result("$3");        _SearchList.Add(key, value);      }    }    return _SearchList;  }  /// <summary>  /// 获取查询参数的值  /// </summary>  ///<param name="key">键  /// <returns></returns>  public string GetSearchValue(string key)  {    return _SearchList[key];  }  /// <summary>  /// 添加参数key=value,如果值已经存在则修改  /// </summary>  ///<param name="key">键  ///<param name="value">值  /// <returns></returns>  public void AddOrUpdateSearch(string key, string value, bool Encode = false)  {    if (Encode)      value = HttpUtility.UrlEncode(value);    //判断指定键值是否存在    if (_SearchList.ContainsKey(key))    {      _SearchList[key] = value;    }    else    {      _SearchList.Add(key, value);    }  }  /// <summary>  /// 删除指定key 的键值对  /// </summary>  ///<param name="key">键  public void Remove(string key)  {    if (_SearchList.Any(q => q.Key == key))      _SearchList.Remove(key);  }  /// <summary>  /// 获取锚点列表  /// </summary>  /// <returns></returns>  public List<string> GetHashList()  {    List<string> list = new List<string>();    if (!string.IsNullOrEmpty(Hash))    {      list = Hash.Split('#').Where(q => string.IsNullOrEmpty(q) == false)        .ToList();    }    return list;  }  #endregion  /// <summary>  /// 获取最终url地址,  /// 对参数值就行UrlEncode 编码后，有可能和原链接不相同  /// </summary>  /// <returns></returns>  public string GetUrl(bool EncodeValue = false)  {    StringBuilder builder = new StringBuilder();    if (!string.IsNullOrEmpty(Protocol))    {      //如果有协议      builder.Append(Protocol).Append("://");    }    //如果有主机标识    builder.Append(Host);    //如果有目录和参数    if (!string.IsNullOrEmpty(PathName))    {      string pathname = PathName;      if (pathname.EndsWith("/"))        pathname = pathname.Substring(0, pathname.Length - 1);      builder.Append(pathname);    }    //判断是否反斜杠    if (Slashes)    {      builder.Append("/");    }    Dictionary<string, string=""> searchList = GetSearchList();    if (searchList != null && searchList.Count > 0)    {      builder.Append("?");      bool isFirst = true;      foreach (var item in searchList)      {        if (isFirst == false)        {          builder.Append("&");        }        isFirst = false;        builder.AppendFormat("{0}={1}", item.Key, EncodeValue ? HttpUtility.UrlEncode(item.Value) : item.Value);      }    }    //锚点    builder.Append(Hash);    return builder.ToString();  }  #region 静态方法  /// <summary>  /// 获取源字符串中所有的链接（可能有重复）  /// </summary>  ///<param name="content">源字符串  /// <returns></returns>  public static List<string> GetUrlList(string content)  {    List<string> list = new List<string>();    Regex re = new Regex(@"(?<url>http(s)?://([/w-]+/.)+[/w-]+(/[/w- ./?%&=]*)?)");    MatchCollection mc = re.Matches(content);    foreach (Match m in mc)    {      if (m.Success)      {        string url = m.Result("${url}");        list.Add(url);      }    }    return list;  }  /// <summary>  /// 将字符串中的链接成标签  /// </summary>  ///<param name="content">  /// <returns></returns>  public static string ReplaceToA(string content)  {    Regex re = new Regex(@"(?<url>http(s)?://([/w-]+/.)+[/w-]+(/[/w- ./?%&=]*)?)");    MatchCollection mc = re.Matches(content);    foreach (Match m in mc)    {      content = content.Replace(m.Result("${url}"), String.Format("</url>{0}", m.Result("${url}")));    }    return content;  }  #endregion}</url></string></string></string></string,></string></string></string></string,></string,></string,></string,>