微信JS-SDK分享功能的.Net实现代码
(编辑：jimmy 日期: 2024/10/15 浏览：2)
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关键代码分析
为保证第三方服务器与微信服务器之间数据传输的安全性，所有微信接口采用https方式调用，所以.net里引用了比较高版本(.Net 4.5+)的网络包进行http请求。
private string httpGet(string url)
{
if (url.StartsWith("https"))
System.Net.ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls;
HttpClient httpClient = new HttpClient();
httpClient.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
HttpResponseMessage response = httpClient.GetAsync(url).Result;
if (response.IsSuccessStatusCode)
{
string result = response.Content.ReadAsStringAsync().Result;
return result;
}
return null;
}
获取access_token，先从本地的access_token.aspx里找，如果没有或者过期(7000秒)，则重新到微信服务器获取。
private string getAccessToken()
{
string accessToken = string.Empty;
var data = JObject.Parse(getAspxFile("access_token.aspx", ASPX_HEAD[1]));
if (data != null && long.Parse(data["expire_time"].ToString()) < Utils.ConvertTimeStamp(DateTime.Now))
{
string url = "https://api.weixin.qq.com/cgi-bin/token"
+ this.appId + "&secret=" + this.appSecret;
var jRes = JObject.Parse(httpGet(url));
accessToken = jRes["access_token"].ToString();
if (!string.IsNullOrEmpty(accessToken))
{
data["expire_time"] = Utils.ConvertTimeStamp(new DateTime()) + 7000;
data["access_token"] = accessToken;
setAspxFile("access_token.aspx", data.ToString(), ASPX_HEAD[1]);
}
}
else
accessToken = data["access_token"].ToString();
return accessToken;
}
获取jsapi_ticket，原理与access_token一样。
private string getJsApiTicket()
{
string ticket = string.Empty;
var data = JObject.Parse(getAspxFile("jsapi_ticket.aspx", ASPX_HEAD[0]));
if (data != null && long.Parse(data["expire_time"].ToString()) < Utils.ConvertTimeStamp(DateTime.Now))
{
string accessToken = getAccessToken();
string url = "https://api.weixin.qq.com/cgi-bin/ticket/getticket"
+ accessToken;
var jRes = JObject.Parse(httpGet(url));
ticket = jRes["ticket"].ToString();
if (!string.IsNullOrEmpty(ticket))
{
data["expire_time"] = Utils.ConvertTimeStamp(new DateTime()) + 7000;
data["jsapi_ticket"] = ticket;
setAspxFile("jsapi_ticket.aspx", data.ToString(), ASPX_HEAD[0]);
}
}
else
ticket = data["jsapi_ticket"].ToString();
return ticket;
}
完整代码
https://github.com/stozen/jssdk-wxshare
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。