public static string get_pre_auth_code()
{
//刷新获取预授权码pre_auth_code
TokenResult trp = refresh_pre_auth_code(get_component_access_token());
return(trp.pre_auth_code);
}
private static string get_component_access_token()
{
WeserviceEntities entity = new WeserviceEntities();
var list = entity.dt_wx_token.Where(s => s.info_type == "component_verify_ticket").ToList();
if (list.Count == 0)
{
return("");
}
var ticket_item = list[0];
//刷新获取第三方平台component_access_token
list = entity.dt_wx_token.Where(s => s.info_type == "component_access_token").ToList();
string component_access_token = "";
if (list.Count > 0)
{
var token = list[0];
double ts = DateTime.Now.Subtract((DateTime)token.last_time).TotalSeconds;
if (ts > (token.expires_in - 600) || token.token == null)//已过期
{
//刷新token
TokenResult tr = refresh_component_access_token(ticket_item.token);
if (tr != null)
{
token.last_time = DateTime.Now;
token.token = tr.component_access_token;
token.expires_in = tr.expires_in;
token.appid = ticket_item.appid;
}
}
component_access_token = token.token;
}
else
{
TokenResult tr = refresh_component_access_token(ticket_item.token);
if (tr != null)
{
var new_token = new dt_wx_token
{
info_type = "component_access_token",
last_time = DateTime.Now,
token = tr.component_access_token,
expires_in = tr.expires_in,
appid = ticket_item.appid
};
component_access_token = new_token.token;
entity.dt_wx_token.Add(new_token);
}
}
int count = entity.SaveChanges();
LogHelper.WriteInfo("update_ticket => count2 : " + count);
return(component_access_token);
}
private static TokenResult refresh_pre_auth_code(string component_access_token)
{
try
{
string url = "https://api.weixin.qq.com/cgi-bin/component/api_create_preauthcode?component_access_token=" + component_access_token;
string json = "{\"component_appid\":\"wx24f0419c030f897a\"}";
TokenResult tr = Post.PostGetJson <TokenResult>(url, null, new MemoryStream(System.Text.Encoding.Default.GetBytes(json)));
return(tr);
}
catch (Exception e)
{
LogHelper.WriteException(e);
}
return(null);
}
private static TokenResult refresh_component_access_token(string ticket)
{
try
{
string url = "https://api.weixin.qq.com/cgi-bin/component/api_component_token";
string json = "{\"component_appid\":\"wx24f0419c030f897a\",\"component_appsecret\":" +
"\"6fba5eb2c4f3f118478608e7d854bace\",\"component_verify_ticket\":" +
"\"" + ticket + "\"}";
TokenResult tr = Post.PostGetJson <TokenResult>(url, null, new MemoryStream(System.Text.Encoding.Default.GetBytes(json)));
return(tr);
}
catch (Exception e)
{
LogHelper.WriteException(e);
}
return(null);
}
