如何在Java使用HTTP？

Question

我想用这个curl语句做一个请求：

curl -u Username:Password -d "auth" https://.../.../...

我想创建一个连接到Battle.net（暴雪开发者的API)，但我不知道如何实现-d。我希望有人能帮助我。怪我英语不好。我是这个社区的新手。

    public static void main(String[] args) throws IOException {

        String user = "...";
        String pwd = "...";

        try {
          URL url = new URL ("https://(battle.net)");
          String encoding = Base64.getEncoder().encodeToString((user + ":" + pwd).getBytes("UTF-8"));

          HttpURLConnection connection = (HttpURLConnection) url.openConnection();
          connection.setRequestMethod("POST");
          connection.setDoOutput(true);
          connection.setRequestProperty  ("authorization_code", encoding);
          InputStream content = (InputStream)connection.getInputStream();
          BufferedReader in   = 
              new BufferedReader (new InputStreamReader (content));
          String line;
          while ((line = in.readLine()) != null) {
              System.out.println(line);
          }
      } catch(Exception e) {
          e.printStackTrace();
      }

    }

错误：

java.io.IOException: Server returned HTTP response code: 401 for URL: "https://(battle.net)"
at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
at sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(Unknown Source)
at gnfcxfg.asd.main(asd.java:28)

Answer 1

根据-d，curl的手册页上的--data :

这将导致curl使用content-type application/x-www-form-urlencoded将数据传递给服务器。

ID设置：

connection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");

URLConnection具有getOutputStream（）：

返回写入此连接的输出流。