public HttpResponseMessage GetQRCode()
{
string token = GetAccessToken(sAppID);
string apiUri = string.Format("https://api.weixin.qq.com/cgi-bin/qrcode/create?access_token={0}", token);
HttpClient client = new HttpClient();
string requestJson = "{\"expire_seconds\": 604800, \"action_name\": \"QR_SCENE\", \"action_info\": {\"scene\": {\"scene_id\": 1234567890}}}";
StringContent content = new StringContent(requestJson, Encoding.UTF8);
var response = client.PostAsync(apiUri, content);
string tickJson = response.Result.Content.ReadAsStringAsync().Result;
AccessTokenTicket ticket = Newtonsoft.Json.JsonConvert.DeserializeObject <AccessTokenTicket>(tickJson);
apiUri = string.Format("https://mp.weixin.qq.com/cgi-bin/showqrcode?ticket={0}", ticket.ticket);
response = client.GetAsync(apiUri);
return(response.Result);
}
public HttpResponseMessage GetQRCodeLimit(string sceneStr)
{
SQLHelper db = new SQLHelper(connString);
byte[] qrData = db.GetSceneQR(sceneStr);
if (qrData == null)
{
string token = GetAccessToken(sAppID);
string apiUri = string.Format("https://api.weixin.qq.com/cgi-bin/qrcode/create?access_token={0}", token);
HttpClient client = new HttpClient();
string requestJson = "{\"action_name\": \"QR_LIMIT_STR_SCENE\", \"action_info\": {\"scene\": {\"scene_str\": \"" + sceneStr + "\"}}}";
StringContent content = new StringContent(requestJson, Encoding.UTF8);
var response = client.PostAsync(apiUri, content);
string tickJson = response.Result.Content.ReadAsStringAsync().Result;
AccessTokenTicket ticket = Newtonsoft.Json.JsonConvert.DeserializeObject <AccessTokenTicket>(tickJson);
apiUri = string.Format("https://mp.weixin.qq.com/cgi-bin/showqrcode?ticket={0}", ticket.ticket);
response = client.GetAsync(apiUri);
db.InsertSceneQR(sceneStr, sAppID, response.Result.Content.ReadAsByteArrayAsync().Result);
return(response.Result);
}
else
{
HttpResponseMessage msg = new HttpResponseMessage(HttpStatusCode.OK);
//ObjectContent content = new ObjectContent(
ByteArrayContent cont = new ByteArrayContent(qrData);
MemoryStream ms = new MemoryStream(qrData, 0, qrData.Length);
StreamContent stream = new StreamContent(ms);
msg.Content = stream;
HttpContext.Current.Response.ContentType = "image/jpeg";
//Request.CreateResponse<byte[]>(HttpStatusCode.OK, qrData, "text/html");
return(msg);
}
}