微信公众平台开发之获得ACCESSTOKEN .Net代码解析
如何认证成为开发者？请点击第一篇文章进行查看，成为了开发者之后微信平台会给您appid和secret，在订阅号中是没有的，所以因该申请一下服务号，有了ACCESSTOKEN才能做添加菜单，上传/下载图片等功能。
privatestringGetToken()
{
//也可以这样写:
//returnGetPage("https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=你的appid&secret=你的secret","");
stringres="";
HttpWebRequestreq=(HttpWebRequest)HttpWebRequest.Create("https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential
&appid=你的appid&secret=你的secret");
req.Method="GET";
using(WebResponsewr=req.GetResponse())
{
HttpWebResponsemyResponse=(HttpWebResponse)req.GetResponse();
StreamReaderreader=newStreamReader(myResponse.GetResponseStream(),Encoding.UTF8);
stringcontent=reader.ReadToEnd();
List<ACCESSTOKEN>myACCESSTOKEN=Json.JSONStringToList<ACCESSTOKEN>(content);
res=myACCESSTOKEN[0].access_token;
}
returnres;
}
publicstringGetPage(stringposturl,stringpostData)
{
Streamoutstream=null;
Streaminstream=null;
StreamReadersr=null;
HttpWebResponseresponse=null;
HttpWebRequestrequest=null;
Encodingencoding=Encoding.UTF8;
byte[]data=encoding.GetBytes(postData);
//准备请求...
try
{
//设置参数
request=WebRequest.Create(posturl)asHttpWebRequest;
CookieContainercookieContainer=newCookieContainer();
request.CookieContainer=cookieContainer;
request.AllowAutoRedirect=true;
request.Method="POST";
request.ContentType="application/x-www-form-urlencoded";
request.ContentLength=data.Length;
outstream=request.GetRequestStream();
outstream.Write(data,0,data.Length);
outstream.Close();
//发送请求并获取相应回应数据
response=request.GetResponse()asHttpWebResponse;
//直到request.GetResponse()程序才开始向目标网页发送Post请求
instream=response.GetResponseStream();
sr=newStreamReader(instream,encoding);
//返回结果网页（html）代码
stringcontent=sr.ReadToEnd();
stringerr=string.Empty;
returncontent;
}
catch(Exceptionex)
{
stringerr=ex.Message;
Response.Write(err);
returnstring.Empty;
}
}
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毛票票。