群发内容 不管是发图文还是文本，都提示 errcode":40008,"errmsg":"invalid message type 怎么搞也发不出去。
public static String sendMsg(String data){
String access_token= getAccess_token();
String action = "https://api.weixin.qq.com/cgi-bin/message/mass/sendall?access_token="+access_token;
try {
URL url = new URL(action);
HttpURLConnection http = (HttpURLConnection) url.openConnection();
http.setRequestMethod("POST");
http.setRequestProperty("Content-Type","application/x-www-form-urlencoded");
http.setDoOutput(true);
http.setDoInput(true);
System.setProperty("sun.net.client.defaultConnectTimeout", "30000");//连接超时30秒
System.setProperty("sun.net.client.defaultReadTimeout", "30000"); //读取超时30秒
http.connect();
OutputStream os= http.getOutputStream();
os.write(data.getBytes("UTF-8"));//传入参数
os.flush();
os.close();
InputStream is =http.getInputStream();
int size =is.available();
byte[] jsonBytes =new byte[size];
is.read(jsonBytes);
String message=new String(jsonBytes,"UTF-8");
return message;
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return "失败";
}
public static void main(String[] args) throws Exception
{
String data="{\"filter\":{\"is_to_all\":false\"group_id\":\"0\"},\"text\":{\"content\":\"CONTENT\"},\"msgtype\":\"text\"}";
String result = sendMsg(data);
System.out.println(result);
}
有没有现成的例子，给个。。。。
