问题

以下是您要翻译的内容：

我通过以下代码请求POST方法：
```try {
                    URL url = new URL("地址/discordnotifi");

                    HttpURLConnection httpURLConnection = (HttpURLConnection) url.openConnection();

                    httpURLConnection.setReadTimeout(5000);

                    httpURLConnection.setConnectTimeout(5000);

                    httpURLConnection.setRequestMethod("POST");
                    httpURLConnection.connect();
                    JSONObject object = new JSONObject();
                    myPWord = ((EditText) (findViewById(R.id.edit_Id))).getText().toString();
                    object.put("token", tokens);
                    object.put("discordid", mydiscord);

                    OutputStream outputStream = httpURLConnection.getOutputStream();
                    outputStream.write(object.toString().getBytes("UTF-8"));

                    Log.d("debug",object.toString());
                    outputStream.flush();
                    outputStream.close();

而我的 tokens 和 mydiscord 是我想要以 JSON 格式发送的信息，就像这样：
{"token":"tokens","discordid":"mydiscord"}

从 Python Flask 的部分如下：

@app.route('/discordnotifi', methods=['POST'])
def post():
    content = request.json
    print(content)
    Discordid = int(content["discordid"])
    token = content['token']
    """Discordid = request.form.get("discordid")
    token = request.form.get("token")"""
    print(Discordid, token)
    return ("谢谢")

在打印 content 时，我得到了 None，我真的不知道这里有什么问题。我原打算发送带有信息的 JSON，但我从 JSON 得到了 None。

<details>
<summary>英文:</summary>

I request POST by this code
```try {
                    URL url = new URL(&quot;adress/discordnotifi&quot;);

                    HttpURLConnection httpURLConnection = (HttpURLConnection) url.openConnection();

                    httpURLConnection.setReadTimeout(5000);

                    httpURLConnection.setConnectTimeout(5000);

                    httpURLConnection.setRequestMethod(&quot;POST&quot;);
                    httpURLConnection.connect();
                    JSONObject object = new JSONObject();
                    myPWord = ((EditText) (findViewById(R.id.edit_Id))).getText().toString();
                    object.put(&quot;token&quot;, tokens);
                    object.put(&quot;discordid&quot;, mydiscord);

                    OutputStream outputStream = httpURLConnection.getOutputStream();
                    outputStream.write(object.toString().getBytes(&quot;UTF-8&quot;));

                    Log.d(&quot;debug&quot;,object.toString());
                    outputStream.flush();
                    outputStream.close();

and my tokens and mydiscord is the information that I want to send as JSON format like
{"token":"tokens","discordid":"mydiscord"}

and from python flask

@app.route('/discordnotifi', methods=['POST'])
def post():
    content = request.json
    print(content)
    Discordid = int(content["discordid"])
    token = content['token']
    """Discordid = request.form.get("discordid")
    token = request.form.get("token")"""
    print(Discordid, token)
    return ("Thx")

at print(content) I get None I really don't know whts wrong here. I was planning to send Json with information but I getting None from Json.

答案1

得分: 1

以下是您要翻译的内容：

你至少缺少的是在连接上启用输出。添加：

httpURLConnection.setDoOutput(true);

服务器可能还要求您设置一些标头，例如 content-type，以通知它您正在发送 JSON。

httpURLConnection.setRequestProperty("Content-Type", "application/json; utf-8");

如果您可以使用Java 11，考虑使用新的HttpClient类，而不是HttpUrlConnection。它简化了创建正确请求的过程。

httpURLConnection.setDoOutput(true);

httpURLConnection.setRequestProperty("Content-Type", "application/json; utf-8");