Java的cURL命令

Question

我有一個要在Java中翻譯的cURL命令

curl -H "Key: XXX" -d url=http://www.google.com http://myapi.com/v2/extraction?format=json

工作正常。

我開始用Java做：（經過代碼編輯，可以正常工作）

            try {
        // POST
        System.out.println("POSTING");
        URL url = new URL("http://myapi.com/v2/extraction?format=json");
        HttpURLConnection connection = (HttpURLConnection) url.openConnection();
        connection.setDoOutput(true);
        connection.setRequestMethod("POST");
        connection.setRequestProperty("Key", "XXX");
        String data =  "http://www.google.com";
        OutputStreamWriter writer = new OutputStreamWriter(connection.getOutputStream());

        writer.write("url=" +data);
        writer.close();

        int responseCode = connection.getResponseCode();
        System.out.println("\nSending 'POST' request to URL : " + url);
        System.out.println("Post parameters : " + data);
        System.out.println("Response Code : " + responseCode);

        BufferedReader in = new BufferedReader(new InputStreamReader(connection.getInputStream()));
        String inputLine;
        StringBuffer response = new StringBuffer();

        while ((inputLine = in.readLine()) != null) {
            response.append(inputLine);
        }
        in.close();

        System.out.println("REPOSNE" +response.toString());

        if (connection.getResponseCode() == HttpURLConnection.HTTP_OK) {
            // OK
        } else {
            // Server returned HTTP error code.
        }
        } catch (MalformedURLException e) {
        // ...
        } catch (IOException e) {
        // ...
        }

但是我不知道該如何設置我的論點。

謝謝你的幫助。

吉恩

Answer 1

如果您打算將標題字段Key設置為XXX ，則可以使用setRequestProperty

即

conn.setRequestProperty("Key", "XXX");

如果要發送數據，請使用

String data = "url=http://www.google.com";
conn.setRequestProperty("Content-Length", "" + Integer.toString(data.getBytes().length));

編輯：-

要以表單網址編碼發布數據，請嘗試以下代碼

String data  = "url=" + URLEncoder.encode("http://www.google.com", "UTF-8");
conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
wr.write(data.getBytes());