微信在线接口调试请求失败是什么意思

没遇见过，可能是他们内部错误吧。
微信开发，我刚完成。调用文本消息接口的代码，发给楼主一下。

public string GroupsSendAll(string ACCESS_TOKEN, string result)
{
string wxurl = "https://api.weixin.qq.com/cgi-bin/message/mass/send?access_token=" + ACCESS_TOKEN;

string data = "{\"touser\":[\"oHSz5vlTfJL63N0wnlLfqtmcOdh8\",\"-\"],\"msgtype\": \"text\",\"text\": { \"content\": \"测试群发文本消息\"}}";

System.Net.HttpWebRequest httpWebRequest = (HttpWebRequest)System.Net.WebRequest.Create(wxurl);
httpWebRequest.Method = "POST";

httpWebRequest.Headers.Add("Accept-Charset", "utf-8");

byte[] postBytes = Encoding.UTF8.GetBytes(data);
//httpWebRequest.ContentType = "text/xml";
httpWebRequest.ContentType = "application/json; charset=utf-8";// httpWebRequest.ContentLength = Encoding.UTF8.GetByteCount(data);//strJson为json字符串
Stream stream = httpWebRequest.GetRequestStream();
stream.Write(postBytes, 0, postBytes.Length);
stream.Close();//发送完毕，接受返回值
var response = httpWebRequest.GetResponse();
Stream streamResponse = response.GetResponseStream();
StreamReader streamRead = new StreamReader(streamResponse);
String responseString = streamRead.ReadToEnd();
return responseString;

}

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