APP
public WeiXinJsSignature(string weixinUrl)
{
//string url = ConfigurationManager.AppSettings["UrlAddress"] + "/Home/Index";
//string url = "http://mweb.zhijiaxing.net/circlerelationblog/Home/Index?type=11&id=5ea5b237-6ae5-49af-b7e5-64a583b1a321&ck=Zl8P3aQsTP36bskInAqlxL6p_yl9Z_emxvL8eTZsUiabYh22MoIVQw%3d%3d&from=singlemessage&isappinstalled=0";
Timestamp = GetTimeStamp();
Noncestr = Guid.NewGuid().ToString().Replace("-", "");
string jsapiTicket = GetTicket();
string sourceStr = string.Format("jsapi_ticket={0}&noncestr={1}×tamp={2}&url={3}", jsapiTicket, Noncestr, Timestamp, weixinUrl);
Signature = GetSHA1(sourceStr);
}
/// <summary>
/// 獲取當(dāng)前時間戳
/// </summary>
/// <returns></returns>
private string GetTimeStamp()
{
DateTime startTime = TimeZone.CurrentTimeZone.ToLocalTime(new System.DateTime(1970, 1, 1));
return ((int)(DateTime.Now - startTime).TotalSeconds).ToString();
}
/// <summary>
/// SHA1加密
/// </summary>
/// <param name="source"></param>
/// <returns></returns>
private string GetSHA1(string source)
{
string rethash = "";
try
{
System.Security.Cryptography.SHA1 hash = System.Security.Cryptography.SHA1.Create();
System.Text.ASCIIEncoding encoder = new System.Text.ASCIIEncoding();
byte[] combined = encoder.GetBytes(source);
hash.ComputeHash(combined);
var sb = new StringBuilder();
foreach (var t in hash.Hash)
{
sb.Append(t.ToString("x2"));
}
rethash = sb.ToString();
//rethash = Convert.ToBase64String(hash.Hash);
}
catch (Exception ex)
{
LogWriter.ToError("加密失敗 : " + ex.Message);
}
return rethash;
}
public class HttpClientHelper
{
private static readonly HttpClient _httpClient;
static HttpClientHelper()
{
_httpClient = new HttpClient();
}
public static string GetAccessToken()
{
var res = _httpClient.GetAsync(WChartConfig.Url).Result;
try
{
if (res.IsSuccessStatusCode)
{
string resCont = res.Content.ReadAsStringAsync().Result;
//{"access_token":"ACCESS_TOKEN","expires_in":7200}
if (resCont.Contains("errcode"))
{
throw new Exception(resCont);
}
else
{
AccessTokenFromWChat re = JsonConvert.DeserializeObject<AccessTokenFromWChat>(resCont);
if (re != null && !string.IsNullOrWhiteSpace(re.access_token))
{
LogWriter.ToInfo("從微信獲取:AccessToken:" + re.access_token + "有效時間:" + re.expires_in);
return re.access_token;
}
}
}
else
{
throw new Exception("響應(yīng)結(jié)果編碼不正常");
}
}
catch (Exception ex)
{
LogWriter.ToError(ex);
}
return null;
}
internal static string GetJsApiTicket(string token)
{
//{"errcode":0,"errmsg":"ok","ticket":"kgt8ON7yVITDhtdwci0qeb-gNJDxgAfi5m4ENt9ATtHvcqJU1OpSNrW4imnqjxOiXJDEvxemmRAsnclfGSPhiQ","expires_in":7200}
string url = ConfigurationLoader.JsApiTicketUrl.Replace("ACCESS_TOKEN", token);
var res = _httpClient.GetAsync(url).Result;
try
{
if (res.IsSuccessStatusCode)
{
string resCont = res.Content.ReadAsStringAsync().Result;
LogWriter.ToInfo("[GetJsApiTicket]獲取到Ticket信息：" + resCont);
JsApiTicketFromWChat re = JsonConvert.DeserializeObject<JsApiTicketFromWChat>(resCont);
if (re.errcode == 0)
return re.ticket;
}
}
catch (Exception ex)
{
LogWriter.ToError(ex);
}
return null;
}
}
public class WChartConfig
{
private static readonly string GrantType = "client_credential";
public static readonly string AppId = ConfigurationManager.AppSettings.Get("AppId");
private static readonly string AppSecret = ConfigurationManager.AppSettings.Get("AppSecret");
public static readonly string Url =
string.Format("https://api.weixin.qq.com/cgi-bin/token?grant_type={0}&appid={1}&secret={2}", GrantType, AppId, AppSecret);
}
public class ConfigurationLoader
{
public static readonly string JsApiTicketUrl = "https://api.weixin.qq.com/cgi-bin/ticket/getticket?access_token=ACCESS_TOKEN&type=jsapi";
}
本文摘自 ：https://blog.51cto.com/u
