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这篇文章给大家分享的是有关微信公众号中网页授权的两种方式的内容。小编觉得挺实用的，因此分享给大家做个参考，一起跟随小编过来看看吧。
如果用户在微信客户端中访问第三方网页，公众号可以通过微信网页授权机制，来获取用户基本信息，进而实现业务逻辑。
注意：网页授权两种方式
更多网页授权请查阅官网文档：网页授权
静默授权
静默授权即可以在用户关注的的时候，获取用户基本信息，此过程用户无感知。
第一步，通过工厂类 转发请求
/// <returns></returns>
public string HandleRequest()
{
string response = string.Empty;
EventMessage em = EventMessage.LoadFromXml(RequestXml);
if (em != null)
{
switch (em.Event.ToLower())
{
case ("subscribe"):
response = SubscribeEventHandler(em);//通过工厂类分发过来的请求，匹配到关注事件
break;
case ("unsubscribe"):
response = Un_SubscribeEventHandler(em);
break;
case "click":
response = ClickEventHandler(em);
break;
}
}
return response;
}
第二步，写用户关注事件
WeChat.Messages.TextMessage tm = = em.FromUserName; tm.FromUserName = em.ToUserName; tm.CreateTime ==
return tm.GenerateContent(); }
第三步，根据得到的OpenId及accesstoken，即可获取用户基本信息（此处演示是将该用户存入数据库中）
/// <summary>
/// 根据OpenId将此条粉丝记录插入数据库中
/// </summary>
/// <param name="FromUserName"></param>
/// <param name="ToUserName"></param>
public void ShowUserInfo(string FromUserName, string ToUserName)
{
try
{
Models.Users user = new Models.Users();
DAL.User userInfo = new DAL.User();
//获取accesstoken，获取用户基本信息需要Openid和accesstoken即可
accesstoken = Utility.Context.AccessToken;
string url = string.Format("https://api.weixin.qq.com/cgi-bin/user/info?access_token={0}&openid={1}&lang=zh_CN", accesstoken, FromUserName);
string result = HttpUtility.GetData(url);
XDocument doc = XmlUtility.ParseJson(result, "root");
XElement root = doc.Root;
if (root != null)
{
#region 取值/存值
subscribe = root.Element("subscribe").Value;//是否关注 1 是关注
nickname = root.Element("nickname").Value; //昵称
sex = root.Element("sex").Value; //性别什么
headimgurl = root.Element("headimgurl").Value; //头像url
province = root.Element("province").Value;//地区
country = root.Element("country").Value;
language = root.Element("language").Value;
subscribe_time = root.Element("subscribe_time").Value;
DateTime create_time = Common.GetTime(subscribe_time);//将时间戳转换为当前时间
city = root.Element("city").Value;
user.OpenID = FromUserName;//OpenID即粉丝ID
user.PublicId = ToUserName;
user.UserID = FromUserName;
user.NickName = nickname;
user.Sex = int.Parse(sex);
user.Subscribe = int.Parse(subscribe);
user.Country = country;
user.Province = province;
user.City = city;
user.CreateDate = create_time;
user.HeadimgUrl = headimgurl;
//将user实体存入数据库中
bool show = _user.Add(user);
#endregion
}
}
catch
{
throw (new ArgumentNullException());
}
}
上面代码中 AccessToken的实现，新建一个Context类即可
private static DateTime GetAccessToken_Time;
/// <summary>
/// 过期时间为7200秒
/// </summary>
private static int Expires_Period = 7200;
/// <summary>
///
/// </summary>
private static string mAccessToken;
public static string AppID = "换成相应公众号的即可";
public static string AppSecret = "换成相应公众号的即可";
/// <summary>
/// 调用获取ACCESS_TOKEN,包含判断是否过期
/// </summary>
public static string AccessToken
{
get
{
//如果为空，或者过期，需要重新获取
if (string.IsNullOrEmpty(mAccessToken) || HasExpired())
{
//获取access_token
mAccessToken = GetAccessToken(AppID, AppSecret);
}
return mAccessToken;
}
}
/// <summary>
/// 获取ACCESS_TOKEN方法
/// </summary>
/// <param name="appId"></param>
/// <param name="appSecret"></param>
/// <returns></returns>
private static string GetAccessToken(string appId, string appSecret)
{
string url = string.Format("https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid={0}&secret={1}", appId, appSecret);
string result = HttpUtility.GetData(url);
XDocument doc = XmlUtility.ParseJson(result, "root");
XElement root = doc.Root;
if (root != null)
{
XElement access_token = root.Element("access_token");
if (access_token != null)
{
GetAccessToken_Time = DateTime.Now;
if (root.Element("expires_in") != null)
{
Expires_Period = int.Parse(root.Element("expires_in").Value);
}
return access_token.Value;
}
else
{
GetAccessToken_Time = DateTime.MinValue;
}
}
return null;
}
/// <summary>
/// 判断Access_token是否过期
/// </summary>
/// <returns>bool</returns>
private static bool HasExpired()
{
if (GetAccessToken_Time != null)
{
//过期时间，允许有一定的误差，一分钟。获取时间消耗
if (DateTime.Now > GetAccessToken_Time.AddSeconds(Expires_Period).AddSeconds(-60))
{
return true;
}
}
return false;
}
GetData的实现
public static string GetData(string url)
{ return SendGetHttpRequest(url, "application/x-www-form-urlencoded");
}
ParseJson的实现
public static XDocument ParseJson(string json, string rootName)
{ return JsonConvert.DeserializeXNode(json, rootName);
}
关于第三步的 HttpUtility类中还有一些其他公用帮助方法，在这里一并放出，调用即可
/// <summary>
/// 发送请求 /// </summary>
/// <param name="url">Url地址</param>
/// <param name="data">数据</param>
public static string SendHttpRequest(string url, string data)
{ return SendPostHttpRequest(url, "application/x-www-form-urlencoded", data);
} /// <summary>
///
/// </summary>
/// <param name="url"></param>
/// <returns></returns>
public static string GetData(string url)
{ return SendGetHttpRequest(url, "application/x-www-form-urlencoded");
} /// <summary>
/// 发送请求 /// </summary>
/// <param name="url">Url地址</param>
/// <param name="method">方法（post或get）</param>
/// <param name="method">数据类型</param>
/// <param name="requestData">数据</param>
public static string SendPostHttpRequest(string url, string contentType, string requestData)
{
WebRequest request = (WebRequest)HttpWebRequest.Create(url);
request.Method = "POST"; byte[] postBytes = null;
request.ContentType = contentType;
postBytes = Encoding.UTF8.GetBytes(requestData);
request.ContentLength = postBytes.Length; using (Stream outstream = request.GetRequestStream())
{
outstream.Write(postBytes, 0, postBytes.Length);
} string result = string.Empty; using (WebResponse response = request.GetResponse())
{ if (response != null)
{ using (Stream stream = response.GetResponseStream())
{ using (StreamReader reader = new StreamReader(stream, Encoding.UTF8))
{
result = reader.ReadToEnd();
}
}
}
} return result;
} /// <summary>
/// 发送请求 /// </summary>
/// <param name="url">Url地址</param>
/// <param name="method">方法（post或get）</param>
/// <param name="method">数据类型</param>
/// <param name="requestData">数据</param>
public static string SendGetHttpRequest(string url, string contentType)
{
WebRequest request = (WebRequest)HttpWebRequest.Create(url);
request.Method = "GET";
request.ContentType = contentType; string result = string.Empty; using (WebResponse response = request.GetResponse())
{ if (response != null)
{ using (Stream stream = response.GetResponseStream())
{ using (StreamReader reader = new StreamReader(stream, Encoding.UTF8))
{
result = reader.ReadToEnd();
}
}
}
} return result;
}
View Code
顺便提下上文中用到的User类如下
public class Users
{ /// <summary>
/// 全局凭证唯一Id /// </summary>
public string OpenID { get; set; } /// <summary>
/// 公众号Id /// </summary>
public string PublicId { get; set; } /// <summary>
/// 用户Id /// </summary>
public string UserID { get; set; } /// <summary>
/// 昵称 /// </summary>
public string NickName { get; set; } /// <summary>
/// 性别 1是男 0是女 /// </summary>
public int Sex { get; set; } /// <summary>
/// 是否关注 1是关注
/// </summary>
public int Subscribe { get; set; } /// <summary>
/// 国家 /// </summary>
public string Country { get; set; } /// <summary>
/// 地区 /// </summary>
public string Province { get; set; } /// <summary>
/// 城市 /// </summary>
public string City { get; set; } /// <summary>
/// 关注时间 /// </summary>
public DateTime CreateDate { get; set; } /// <summary>
/// 用户头像 /// </summary>
public string HeadimgUrl { get; set; } /// <summary>
/// 第三方平台Id，可为空 /// </summary>
public string UnionID { get; set; } /// <summary>
/// 用户取消关注时间 /// </summary>
public DateTime Un_Subscribe_Time { get; set; }
}
演示效果
数据库中此时是存在10条数据的，当点击关注此公众号的时候，就将此用户的基本信息存入数据库了，数据库刷新后变成11条数据
网页授权流程
具体介绍依然可参考官网文档：网页授权
第一步，判断该用户是否获取授权，若没有授权，则跳转至授权页面，若授权，则获取基本信息
核心代码
/// <summary>
/// 获取授权用户的基本信息,包括头像，姓名，等等(推荐方法） /// </summary>
/// <param name="accessToken">用户授权之后的accessToken</param>
/// <param name="openid">用户授权之后的openid</param>
/// <returns></returns>
public static ShouQuanWeiXinUserInfo GetShouQuanMessage()
{ //先判断是否有获取到用户授权的Code,HttpContext.Current.Session["ShouquanCode"]
if (HttpContext.Current.Session["ShouquanCode"] == null|| HttpContext.Current.Session["ShouquanCode"].ToString()=="")
{
HttpContext.Current.Session["ShouquanCode"] = "123"; //用户授权的Code GetShouQuanCodeUrl(HttpContext.Current.Request.Url.AbsoluteUri);
} else if(HttpContext.Current.Request.QueryString["code"] == null || HttpContext.Current.Request.QueryString["code"] == "")
{ //用户授权的Code GetShouQuanCodeUrl(HttpContext.Current.Request.Url.AbsoluteUri);
} else
{ var model = ShouQuanAccessToken(HttpContext.Current.Request.QueryString["code"]); var url =
$"http://www.php.cn/{model.access_token}&openid={model.openid}&lang=zh_CN"; string gethtml = MyHttpHelper.HttpGet(url); var ac = JsonHelpers.ToObject<ShouQuanWeiXinUserInfo>(gethtml); return ac;
} return null;
}
其中，用户授权的code方法如下：
/// <summary>
/// 重新获取用户授权的Code,可以获取用户的基本信息（头像，姓名，等等）(推荐用的方法） /// </summary>
/// <param name="url">目标Url</param>
/// <returns></returns>
public static void GetShouQuanCodeUrl(string url)
{ string CodeUrl = ""; //加密过的url
string value = HttpUtility.UrlEncode(url); //用户授权后的Code
CodeUrl = $"http://www.php.cn/{Appid}&redirect_uri={value}&response_type=code&scope=snsapi_userinfo&state=STATE#wechat_redirect";
System.Web.HttpContext.Current.Response.Redirect(CodeUrl);//先跳转到微信的服务器，取得code后会跳回来这页面的
}
其中ShouQuanAccessToken方法
/// <summary>
//用户授权之后，获取授权的Access_Token与基本的Access_Token是不同的(推荐方法）
/// </summary>
/// <param name="code">用户授权之后的Code</param>
/// <returns></returns>
public static OauthAccessToken ShouQuanAccessToken(string code)
{ var url = $"http://www.php.cn/{Appid}&secret={Secret}&code={code}&grant_type=authorization_code"; string gethtml = MyHttpHelper.HttpGet(url);
OauthAccessToken ac = new OauthAccessToken();
ac = JsonHelpers.ToObject<OauthAccessToken>(gethtml); return ac;
}
用户实体
public class OauthAccessToken
{ public string access_token { get; set; } public string expires_in { get; set; } public string refresh_token { get; set; } public string openid { get; set; } public string scope { get; set; }
}
其中用到的MyHttpHelper公众类如下
/// <summary>
/// Http连接操作帮助类 /// </summary>
public class HttpHelpers
{ #region 预定义方法或者变更 //默认的编码
private Encoding encoding = Encoding.Default; //Post数据编码
private Encoding postencoding = Encoding.Default; //HttpWebRequest对象用来发起请求
private HttpWebRequest request = null; //获取影响流的数据对象
private HttpWebResponse response = null; /// <summary>
/// 根据相传入的数据，得到相应页面数据 /// </summary>
/// <param name="item">参数类对象</param>
/// <returns>返回HttpResult类型</returns>
public HttpResult GetHtml(HttpItem item)
{ //返回参数
HttpResult result = new HttpResult(); try
{ //准备参数 SetRequest(item);
} catch (Exception ex)
{ return new HttpResult() { Cookie = string.Empty, Header = null, Html = ex.Message, StatusDescription = "配置参数时出错：" + ex.Message };
} try
{ #region 得到请求的response using (response = (HttpWebResponse)request.GetResponse())
{
result.StatusCode = response.StatusCode;
result.StatusDescription = response.StatusDescription;
result.Header = response.Headers; if (response.Cookies != null) result.CookieCollection = response.Cookies; if (response.Headers["set-cookie"] != null) result.Cookie = response.Headers["set-cookie"]; byte[] ResponseByte = null; using (MemoryStream _stream = new MemoryStream())
{ //GZIIP处理
if (response.ContentEncoding != null && response.ContentEncoding.Equals("gzip", StringComparison.InvariantCultureIgnoreCase))
{ //开始读取流并设置编码方式
new GZipStream(response.GetResponseStream(), CompressionMode.Decompress).CopyTo(_stream, 10240);
} else
{ //开始读取流并设置编码方式
response.GetResponseStream().CopyTo(_stream, 10240);
} //获取Byte
ResponseByte = _stream.ToArray();
} if (ResponseByte != null & ResponseByte.Length > 0)
{ //是否返回Byte类型数据
if (item.ResultType == ResultType.Byte) result.ResultByte = ResponseByte; //从这里开始我们要无视编码了
if (encoding == null)
{
Match meta = Regex.Match(Encoding.Default.GetString(ResponseByte), "<meta([^<]*)charset=([^<]*)[\"']", RegexOptions.IgnoreCase); string c = (meta.Groups.Count > 1) ? meta.Groups[2].Value.ToLower().Trim() : string.Empty; if (c.Length > 2)
{ try
{ if (c.IndexOf(" ") > 0) c = c.Substring(0, c.IndexOf(" "));
encoding = Encoding.GetEncoding(c.Replace("\"", "").Replace("'", "").Replace(";", "").Replace("iso-8859-1", "gbk").Trim());
} catch
{ if (string.IsNullOrEmpty(response.CharacterSet)) encoding = Encoding.UTF8; else encoding = Encoding.GetEncoding(response.CharacterSet);
}
} else
{ if (string.IsNullOrEmpty(response.CharacterSet)) encoding = Encoding.UTF8; else encoding = Encoding.GetEncoding(response.CharacterSet);
}
} //得到返回的HTML
result.Html = encoding.GetString(ResponseByte);
} else
{ //得到返回的HTML //result.Html = "本次请求并未返回任何数据";
result.Html = "";
}
} #endregion
} catch (WebException ex)
{ //这里是在发生异常时返回的错误信息
response = (HttpWebResponse)ex.Response;
result.Html = ex.Message; if (response != null)
{
result.StatusCode = response.StatusCode;
result.StatusDescription = response.StatusDescription;
}
} catch (Exception ex)
{
result.Html = ex.Message;
} if (item.IsToLower) result.Html = result.Html.ToLower(); return result;
} /// <summary>
/// 为请求准备参数 /// </summary>
///<param name="item">参数列表</param>
private void SetRequest(HttpItem item)
{ // 验证证书 SetCer(item); //设置Header参数
if (item.Header != null && item.Header.Count > 0) foreach (string key in item.Header.AllKeys)
{
request.Headers.Add(key, item.Header[key]);
} // 设置代理
//SetProxy(item);
if (item.ProtocolVersion != null) request.ProtocolVersion = item.ProtocolVersion;
request.ServicePoint.Expect100Continue = item.Expect100Continue; //请求方式Get或者Post
request.Method = item.Method;
request.Timeout = item.Timeout;
request.KeepAlive = item.KeepAlive;
request.ReadWriteTimeout = item.ReadWriteTimeout; if (!string.IsNullOrWhiteSpace(item.Host))
{
request.Host = item.Host;
} //Accept
request.Accept = item.Accept; //ContentType返回类型
request.ContentType = item.ContentType; //UserAgent客户端的访问类型，包括浏览器版本和操作系统信息
request.UserAgent = item.UserAgent; // 编码
encoding = item.Encoding; //设置安全凭证
request.Credentials = item.ICredentials; //设置Cookie SetCookie(item); //来源地址
request.Referer = item.Referer; //是否执行跳转功能
request.AllowAutoRedirect = item.Allowautoredirect; //设置Post数据 SetPostData(item); //设置最大连接
if (item.Connectionlimit > 0) request.ServicePoint.ConnectionLimit = item.Connectionlimit;
} /// <summary>
/// 设置证书 /// </summary>
/// <param name="item"></param>
private void SetCer(HttpItem item)
{ if (!string.IsNullOrWhiteSpace(item.CerPath))
{ //这一句一定要写在创建连接的前面。使用回调的方法进行证书验证。
ServicePointManager.ServerCertificateValidationCallback = new System.Net.Security.RemoteCertificateValidationCallback(CheckValidationResult); //初始化对像，并设置请求的URL地址
request = (HttpWebRequest)WebRequest.Create(item.URL);
SetCerList(item); //将证书添加到请求里
request.ClientCertificates.Add(new X509Certificate(item.CerPath));
} else
{ //初始化对像，并设置请求的URL地址
request = (HttpWebRequest)WebRequest.Create(item.URL);
SetCerList(item);
}
} /// <summary>
/// 设置多个证书 /// </summary>
/// <param name="item"></param>
private void SetCerList(HttpItem item)
{ if (item.ClentCertificates != null && item.ClentCertificates.Count > 0)
{ foreach (X509Certificate c in item.ClentCertificates)
{
request.ClientCertificates.Add(c);
}
}
} /// <summary>
/// 设置Cookie /// </summary>
/// <param name="item">Http参数</param>
private void SetCookie(HttpItem item)
{ if (!string.IsNullOrEmpty(item.Cookie)) request.Headers[HttpRequestHeader.Cookie] = item.Cookie; //设置CookieCollection
if (item.ResultCookieType == ResultCookieType.CookieCollection)
{
request.CookieContainer = new CookieContainer(); if (item.CookieCollection != null && item.CookieCollection.Count > 0)
request.CookieContainer.Add(item.CookieCollection);
}
} /// <summary>
/// 设置Post数据 /// </summary>
/// <param name="item">Http参数</param>
private void SetPostData(HttpItem item)
{ //验证在得到结果时是否有传入数据
if (request.Method.Trim().ToLower().Contains("post"))
{ if (item.PostEncoding != null)
{
postencoding = item.PostEncoding;
} byte[] buffer = null; //写入Byte类型
if (item.PostDataType == PostDataType.Byte && item.PostdataByte != null && item.PostdataByte.Length > 0)
{ //验证在得到结果时是否有传入数据
buffer = item.PostdataByte;
}//写入文件
else if (item.PostDataType == PostDataType.FilePath && !string.IsNullOrWhiteSpace(item.Postdata))
{
StreamReader r = new StreamReader(item.Postdata, postencoding);
buffer = postencoding.GetBytes(r.ReadToEnd());
r.Close();
} //写入字符串
else if (!string.IsNullOrWhiteSpace(item.Postdata))
{
buffer = postencoding.GetBytes(item.Postdata);
} if (buffer != null)
{
request.ContentLength = buffer.Length;
request.GetRequestStream().Write(buffer, 0, buffer.Length);
}
}
} /// <summary>
/// 设置代理 /// </summary>
/// <param name="item">参数对象</param>
private void SetProxy(HttpItem item)
{ bool isIeProxy = item.ProxyIp.ToLower().Contains("ieproxy"); if (!string.IsNullOrWhiteSpace(item.ProxyIp) && !isIeProxy)
{ //设置代理服务器
if (item.ProxyIp.Contains(":"))
{ string[] plist = item.ProxyIp.Split(':');
WebProxy myProxy = new WebProxy(plist[0].Trim(), Convert.ToInt32(plist[1].Trim())); //建议连接
myProxy.Credentials = new NetworkCredential(item.ProxyUserName, item.ProxyPwd); //给当前请求对象
request.Proxy = myProxy;
} else
{
WebProxy myProxy = new WebProxy(item.ProxyIp, false); //建议连接
myProxy.Credentials = new NetworkCredential(item.ProxyUserName, item.ProxyPwd); //给当前请求对象
request.Proxy = myProxy;
}
} else if (isIeProxy)
{ //设置为IE代理 } else
{
request.Proxy = item.WebProxy;
}
} /// <summary>
/// 回调验证证书问题 /// </summary>
/// <param name="sender">流对象</param>
/// <param name="certificate">证书</param>
/// <param name="chain">X509Chain</param>
/// <param name="errors">SslPolicyErrors</param>
/// <returns>bool</returns>
public bool CheckValidationResult(object sender, X509Certificate certificate, X509Chain chain, SslPolicyErrors errors) { return true; } #endregion
} /// <summary>
/// Http请求参考类 /// </summary>
public class HttpItem
{ /// <summary>
/// 请求URL必须填写 /// </summary>
public string URL { get; set; } string _Method = "GET"; /// <summary>
/// 请求方式默认为GET方式,当为POST方式时必须设置Postdata的值 /// </summary>
public string Method
{ get { return _Method; } set { _Method = value; }
} int _Timeout = 100000; /// <summary>
/// 默认请求超时时间 /// </summary>
public int Timeout
{ get { return _Timeout; } set { _Timeout = value; }
} int _ReadWriteTimeout = 30000; /// <summary>
/// 默认写入Post数据超时间 /// </summary>
public int ReadWriteTimeout
{ get { return _ReadWriteTimeout; } set { _ReadWriteTimeout = value; }
} /// <summary>
/// 设置Host的标头信息 /// </summary>
public string Host { get; set; }
Boolean _KeepAlive = true; /// <summary>
/// 获取或设置一个值，该值指示是否与 Internet 资源建立持久性连接默认为true。 /// </summary>
public Boolean KeepAlive
{ get { return _KeepAlive; } set { _KeepAlive = value; }
} string _Accept = "text/html, application/xhtml+xml, */*"; /// <summary>
/// 请求标头值 默认为text/html, application/xhtml+xml, */* /// </summary>
public string Accept
{ get { return _Accept; } set { _Accept = value; }
} string _ContentType = "text/html"; /// <summary>
/// 请求返回类型默认 text/html /// </summary>
public string ContentType
{ get { return _ContentType; } set { _ContentType = value; }
} string _UserAgent = "Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0)"; /// <summary>
/// 客户端访问信息默认Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0) /// </summary>
public string UserAgent
{ get { return _UserAgent; } set { _UserAgent = value; }
} /// <summary>
/// 返回数据编码默认为NUll,可以自动识别,一般为utf-8,gbk,gb2312 /// </summary>
public Encoding Encoding { get; set; } private PostDataType _PostDataType = PostDataType.String; /// <summary>
/// Post的数据类型 /// </summary>
public PostDataType PostDataType
{ get { return _PostDataType; } set { _PostDataType = value; }
} /// <summary>
/// Post请求时要发送的字符串Post数据 /// </summary>
public string Postdata { get; set; } /// <summary>
/// Post请求时要发送的Byte类型的Post数据 /// </summary>
public byte[] PostdataByte { get; set; } /// <summary>
/// Cookie对象集合 /// </summary>
public CookieCollection CookieCollection { get; set; } /// <summary>
/// 请求时的Cookie /// </summary>
public string Cookie { get; set; } /// <summary>
/// 来源地址，上次访问地址 /// </summary>
public string Referer { get; set; } /// <summary>
/// 证书绝对路径 /// </summary>
public string CerPath { get; set; } /// <summary>
/// 设置代理对象，不想使用IE默认配置就设置为Null，而且不要设置ProxyIp /// </summary>
public WebProxy WebProxy { get; set; } private Boolean isToLower = false; /// <summary>
/// 是否设置为全文小写，默认为不转化 /// </summary>
public Boolean IsToLower
{ get { return isToLower; } set { isToLower = value; }
} private Boolean allowautoredirect = false; /// <summary>
/// 支持跳转页面，查询结果将是跳转后的页面，默认是不跳转 /// </summary>
public Boolean Allowautoredirect
{ get { return allowautoredirect; } set { allowautoredirect = value; }
} private int connectionlimit = 1024; /// <summary>
/// 最大连接数 /// </summary>
public int Connectionlimit
{ get { return connectionlimit; } set { connectionlimit = value; }
} /// <summary>
/// 代理Proxy 服务器用户名 /// </summary>
public string ProxyUserName { get; set; } /// <summary>
/// 代理 服务器密码 /// </summary>
public string ProxyPwd { get; set; } /// <summary>
/// 代理 服务IP,如果要使用IE代理就设置为ieproxy /// </summary>
public string ProxyIp { get; set; } private ResultType resulttype = ResultType.String; /// <summary>
/// 设置返回类型String和Byte /// </summary>
public ResultType ResultType
{ get { return resulttype; } set { resulttype = value; }
} private WebHeaderCollection header = new WebHeaderCollection(); /// <summary>
/// header对象 /// </summary>
public WebHeaderCollection Header
{ get { return header; } set { header = value; }
} /// <summary>
// 获取或设置用于请求的 HTTP 版本。返回结果:用于请求的 HTTP 版本。默认为 System.Net.HttpVersion.Version11。
/// </summary>
public Version ProtocolVersion { get; set; } private Boolean _expect100continue = true; /// <summary>
/// 获取或设置一个 System.Boolean 值，该值确定是否使用 100-Continue 行为。如果 POST 请求需要 100-Continue 响应，则为 true；否则为 false。默认值为 true。 /// </summary>
public Boolean Expect100Continue
{ get { return _expect100continue; } set { _expect100continue = value; }
} /// <summary>
/// 设置509证书集合 /// </summary>
public X509CertificateCollection ClentCertificates { get; set; } /// <summary>
/// 设置或获取Post参数编码,默认的为Default编码 /// </summary>
public Encoding PostEncoding { get; set; } private ResultCookieType _ResultCookieType = ResultCookieType.String; /// <summary>
/// Cookie返回类型,默认的是只返回字符串类型 /// </summary>
public ResultCookieType ResultCookieType
{ get { return _ResultCookieType; } set { _ResultCookieType = value; }
} private ICredentials _ICredentials = CredentialCache.DefaultCredentials; /// <summary>
/// 获取或设置请求的身份验证信息。 /// </summary>
public ICredentials ICredentials
{ get { return _ICredentials; } set { _ICredentials = value; }
}
} /// <summary>
/// Http返回参数类 /// </summary>
public class HttpResult
{ /// <summary>
/// Http请求返回的Cookie /// </summary>
public string Cookie { get; set; } /// <summary>
/// Cookie对象集合 /// </summary>
public CookieCollection CookieCollection { get; set; } /// <summary>
/// 返回的String类型数据 只有ResultType.String时才返回数据，其它情况为空 /// </summary>
public string Html { get; set; } /// <summary>
/// 返回的Byte数组 只有ResultType.Byte时才返回数据，其它情况为空 /// </summary>
public byte[] ResultByte { get; set; } /// <summary>
/// header对象 /// </summary>
public WebHeaderCollection Header { get; set; } /// <summary>
/// 返回状态说明 /// </summary>
public string StatusDescription { get; set; } /// <summary>
/// 返回状态码,默认为OK /// </summary>
public HttpStatusCode StatusCode { get; set; }
} /// <summary>
/// 返回类型 /// </summary>
public enum ResultType
{ /// <summary>
/// 表示只返回字符串 只有Html有数据 /// </summary> String, /// <summary>
/// 表示返回字符串和字节流 ResultByte和Html都有数据返回 /// </summary> Byte
} /// <summary>
/// Post的数据格式默认为string /// </summary>
public enum PostDataType
{ /// <summary>
/// 字符串类型，这时编码Encoding可不设置 /// </summary> String, /// <summary>
/// Byte类型，需要设置PostdataByte参数的值编码Encoding可设置为空 /// </summary> Byte, /// <summary>
/// 传文件，Postdata必须设置为文件的绝对路径，必须设置Encoding的值 /// </summary> FilePath
} /// <summary>
/// Cookie返回类型 /// </summary>
public enum ResultCookieType
{ /// <summary>
/// 只返回字符串类型的Cookie /// </summary> String, /// <summary>
/// CookieCollection格式的Cookie集合同时也返回String类型的cookie /// </summary> CookieCollection
} /// <summary>HttpHelper的2次封装函数 作者： /// </summary>
public class MyHttpHelper
{ #region 公共函数 /// <summary>返回 HTML 字符串的编码结果</summary>
/// <param name="str">字符串</param>
/// <returns>编码结果</returns>
public static string HtmlEncode(string str)
{ if (string.IsNullOrEmpty(str))
{ return "";
} return str.Length > 0 ? HttpUtility.HtmlEncode(str) : "";
} /// <summary>返回 HTML 字符串的解码结果</summary>
/// <param name="str">字符串</param>
/// <returns>解码结果</returns>
public static string HtmlDecode(string str)
{ if (string.IsNullOrEmpty(str))
{ return "";
} return str.Length > 0 ? HttpUtility.HtmlDecode(str) : "";
} /// <summary>
/// 根据指定的编码对RUl进行解码 /// </summary>
/// <param name="str">要解码的字符串</param>
/// <param name="encoding">要进行解码的编码方式</param>
/// <returns></returns>
public static string UrlDecode(string str, Encoding encoding = null)
{ if (string.IsNullOrEmpty(str))
{ return "";
} if (str.Length == 0)
{ return "";
} if (encoding == null)
{ return HttpUtility.UrlDecode(str);
} else
{ return HttpUtility.UrlDecode(str, encoding);
}
} /// <summary>根据指定的编码对URL进行编码</summary>
/// <param name="str">要编码的URL</param>
/// <param name="encoding">要进行编码的编码方式</param>
/// <returns></returns>
public static string UrlEncode(string str, Encoding encoding = null)
{ if (string.IsNullOrEmpty(str))
{ return "";
} if (str.Length == 0)
{ return "";
} if (encoding == null)
{ return HttpUtility.UrlEncode(str);
} else
{ return HttpUtility.UrlEncode(str, encoding);
}
} /// <summary>
/// 根据 charSet 返回 Encoding /// </summary>
/// <param name="charSet">"gb2312" or "utf-8",默认: "" == "utf-8"</param>
/// <returns></returns>
public static Encoding GetEncoding(string charSet)
{
Encoding en = Encoding.Default; if (charSet == "gb2312")
{
en = Encoding.GetEncoding("gb2312");
} else if (charSet == "utf-8")
{
en = Encoding.UTF8;
} return en;
} #endregion
#region Post /// <summary>HTTP Get方式请求数据</summary>
/// <param name="url">URL</param>
/// <param name="param">user=123123 & pwd=1231313"</param>
/// <param name="charSet">"gb2312" or "utf-8",默认: "" == "utf-8"</param>
/// <returns></returns>
public static string HttpPost(string url, string param, string charSet = "utf-8")
{
HttpHelpers http = new HttpHelpers();
HttpItem item = new HttpItem()
{
URL = url,
Encoding = GetEncoding(charSet),//编码格式（utf-8,gb2312,gbk） 可选项 默认类会自动识别
Method = "post",//URL 可选项 默认为Get
Postdata = param
}; //得到HTML代码
HttpResult result = http.GetHtml(item); //取出返回的Cookie //string cookie = result.Cookie; //返回的Html内容
string html = result.Html; if (result.StatusCode == System.Net.HttpStatusCode.OK)
{ return html;
} //string statusCodeDescription = result.StatusDescription;
return "";
} #endregion
#region Get /// <summary>HTTP Get方式请求数据</summary>
/// <param name="url">URL</param>
/// <param name="charSet">"gb2312" or "utf-8",默认: "" == "utf-8"</param>
/// <returns></returns>
public static string HttpGet(string url, string charSet = "utf-8")
{
HttpHelpers http = new HttpHelpers();
HttpItem item = new HttpItem()
{
URL = url,
Encoding = GetEncoding(charSet),
Method = "get"
}; //得到HTML代码
HttpResult result = http.GetHtml(item); //取出返回的Cookie //string cookie = result.Cookie; //返回的Html内容
string html = result.Html; if (result.StatusCode == System.Net.HttpStatusCode.OK)
{ return html;
} //string statusCodeDescription = result.StatusDescription;
return "";
} /// <summary>POST客服消息/summary> /// <param name="url">URL</param>
/// <param name="postData">内容</param>
/// <returns>消息状态</returns>
public static string GetPage(string posturl, string postData)
{
Stream outstream = null;
Stream instream = null;
StreamReader sr = null;
HttpWebResponse response = null;
HttpWebRequest request = null;
Encoding encoding = Encoding.UTF8; byte[] data = encoding.GetBytes(postData); // 准备请求...
try
{ // 设置参数
request = WebRequest.Create(posturl) as HttpWebRequest;
CookieContainer cookieContainer = new CookieContainer();
request.CookieContainer = cookieContainer;
request.AllowAutoRedirect = true;
request.Method = "POST";
request.ContentType = "application/x-www-form-urlencoded";
request.ContentLength = data.Length;
outstream = request.GetRequestStream();
outstream.Write(data, 0, data.Length);
outstream.Close(); //发送请求并获取相应回应数据
response = request.GetResponse() as HttpWebResponse; //直到request.GetResponse()程序才开始向目标网页发送Post请求
instream = response.GetResponseStream();
sr = new StreamReader(instream, encoding); //返回结果网页（html）代码
string content = sr.ReadToEnd(); string err = string.Empty; return content;
} catch (Exception ex)
{ string err = ex.Message; return err;
}
} #endregion
}
View Code
封装的JsonHelpers类如下
#region 通用 /// <summary>检查字符串是否json格式</summary>
/// <param name="jText"></param>
/// <returns></returns>
public static bool IsJson(string jText)
{ if (string.IsNullOrEmpty(jText) || jText.Length < 3)
{ return false;
} if (jText.Substring(0, 2) == "{\"" || jText.Substring(0, 3) == "[{\"")
{ return true;
} return false;
} /// <summary>检查字符串是否json格式数组</summary>
/// <param name="jText"></param>
/// <returns></returns>
public static bool IsJsonRs(string jText)
{ if (string.IsNullOrEmpty(jText) || jText.Length < 3)
{ return false;
} if (jText.Substring(0, 3) == "[{\"")
{ return true;
} return false;
} /// <summary>格式化 json</summary>
/// <param name="jText"></param>
/// <returns></returns>
public static string Fmt_Null(string jText)
{ return StringHelper.ReplaceString(jText, ":null,", ":\"\",", true);
} /// <summary>格式化 json ，删除左右二边的[]</summary>
/// <param name="jText"></param>
/// <returns></returns>
public static string Fmt_Rs(string jText)
{
jText = jText.Trim();
jText = jText.Trim('[');
jText = jText.Trim(']'); return jText;
} #endregion
#region Json序列化 /// <summary>序列化</summary>
/// <param name="obj">object </param>
/// <returns></returns>
public static string ToJson(object obj)
{ var idtc = new Newtonsoft.Json.Converters.IsoDateTimeConverter { DateTimeFormat = "yyyy-MM-dd hh:mm:ss" }; return JsonConvert.SerializeObject(obj, idtc);
} /// <summary>序列化--sql</summary>
/// <param name="dt">DataTable</param>
/// <returns></returns>
public static string ToJson_FromSQL(DataTable dt)
{ string ss = ToJson(dt);
dt.Dispose(); return ss;
} #endregion
#region Json反序列化 /// <summary>反序列化</summary>
/// <param name="jText"></param>
/// <returns></returns>
public static DataTable ToDataTable(string jText)
{ if (string.IsNullOrEmpty(jText))
{ return null;
} else
{ try
{ return JsonConvert.DeserializeObject<DataTable>(jText);
} catch
{ return null;
}
}
} /// <summary>反序列化</summary>
/// <typeparam name="T">类型</typeparam>
/// <param name="jText">json字符串</param>
/// <returns>类型数据</returns>
public static T ToObject<T>(string jText)
{ return (T)JsonConvert.DeserializeObject(jText, typeof(T));
} #endregion
View Code
其中，如果是VS2015以下的，可以将url字符串改成string.format("")方式
调用取值的方式
效果展示
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