Question

我想展示我的代码，但我不知道为什么我的facebook没有收到消息。非常感谢您的帮助

    HttpURLConnection myConnection = (HttpURLConnection) ((new URL("https://graph.facebook.com/v2.6/me/messages?access_token=the_access_token").openConnection()));
    myConnection.setDoOutput(true);
    myConnection.setRequestProperty("Content-Type", "application/json; charset=UTF-8");
    myConnection.setRequestProperty("Accept", "application/json");      
    myConnection.setRequestMethod("POST");
    myConnection.connect(); 
  JSONObject myTest = new JSONObject();

        try {
            JSONObject recipient = new JSONObject();
            recipient.put("id", "martinxxxxxwang");         
            myTest.put("recipient", recipient);
            JSONObject message = new JSONObject();
            message.put("text", "888");         
            myTest.put("message", message);     
            response.getWriter().append(myTest.toString());             

        } catch (JSONException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }       
        OutputStream os = myConnection.getOutputStream();
        os.write(myTest.toString().getBytes("UTF-8"));
        os.close();

顺便说一下，＆＃34; myTest＆＃34;是{＆＃34;收件人＆＃34;：{＆＃34; id＆＃34;：＆＃34; martinxxxxxwang＆＃34;}，＆＃34;消息＆＃34;：{＆＃34; text＆＃34;：＆＃34; 888＆＃34;}}。如果我尝试了＆＃34; graph.facebook.com/v2.6/me/messages =的access_token令牌＆＃34;？;，我被告知＆＃34;＆＃34;错误＆＃34;：{＆＃34;消息＆＃34;：＆＃34;（＃100）参数user_id是必需的＆＃34;，＆＃34;类型＆＃34 ;：＆＃34; OAuthException＆＃34;，＆＃34; code＆＃34;：100，＆＃34; fbtrace_id＆＃34;：＆＃34; FEv3jq / ahEq＆＃34; ＆＃34;

Answer 1

问题出在收件人Id中，如果json的任何字段在很多时候都没有，则返回此错误。在您的情况下是收件人ID。

Facebook消息不发送消息

1 个答案: