本文实例为大家分享了C# wx获取token的具体代码，供大家参考，具体内容如下
#region 请求Url，不发送数据
/// <summary>
/// 请求Url，不发送数据
/// </summary>
public static string RequestUrl( string url)
{
return RequestUrl(url, "POST" );
}
#endregion
#region 请求Url，不发送数据
/// <summary>
/// 请求Url，不发送数据
/// </summary>
public static string RequestUrl( string url, string method)
{
// 设置参数
var request = WebRequest.Create(url) as HttpWebRequest;
var cookieContainer = new CookieContainer();
request.CookieContainer = cookieContainer;
request.AllowAutoRedirect = true ;
request.Method = method;
request.ContentType = "text/html" ;
request.Headers.Add( "charset" , "utf-8" );
//发送请求并获取相应回应数据
var response = request.GetResponse() as HttpWebResponse;
//直到request.GetResponse()程序才开始向目标网页发送Post请求
Stream responseStream = response.GetResponseStream();
var sr = new StreamReader(responseStream, Encoding.UTF8);
//返回结果网页（html）代码
string content = sr.ReadToEnd();
return content;
}
#endregion
#region 获取Json字符串某节点的值
/// <summary>
/// 获取Json字符串某节点的值
/// </summary>
public static string GetJsonValue( string jsonStr, string key)
{
string result = string .Empty;
if (! string .IsNullOrEmpty(jsonStr))
{
key = "\"" + key.Trim( '"' ) + "\ "" ;
int index = jsonStr.IndexOf(key) + key.Length + 1;
if (index > key.Length + 1)
{
//先截逗号，若是最后一个，截"｝"号，取最小值
int end = jsonStr.IndexOf( ',' , index);
if (end == -1)
{
end = jsonStr.IndexOf( '}' , index);
}
result = jsonStr.Substring(index, end - index);
result = result.Trim( new [] { '"' , ' ' , '\"' }); //过滤引号或空格
}
}
return result;
}
#endregion
#region 验证Token是否过期
/// <summary>
/// 验证Token是否过期
/// </summary>
public static bool TokenExpired( string access_token)
{
string jsonStr =
RequestUrl( string .Format( "https://api.weixin.qq测试数据/cgi-bin/menu/get?access_token={0}" ,
access_token));
if (GetJsonValue(jsonStr, "errcode" ) == "42001" )
{
return true ;
}
return false ;
}
#endregion
#region 获取Token
/// <summary>
/// 获取Token
/// </summary>
public static string GetToken( string appid, string secret)
{
string strJson =
RequestUrl(
string .Format(
"https://api.weixin.qq测试数据/cgi-bin/token?grant_type=client_credential&appid={0}&secret={1}" ,
appid, secret));
return GetJsonValue(strJson, "access_token" );
}
#endregion
//获取Openid
public static string GetOpenId( string appid, string secret, string code)
{
string strJson =
RequestUrl(
string .Format(
"https://api.weixin.qq测试数据/sns/jscode2session?appid={0}&secret={1}&js_code={2}&grant_type=authorization_code" ,
appid, secret, code));
//LogUtil.WriteLog(strJson);
return GetJsonValue(strJson, "openid" );
}
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持服务器之家。
dy("nrwz");
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