如何在Java中为wit.ai音频发送HTTP请求

苏尼尔·库玛（Sunil Kumar）

我必须使用http api调用将wave文件发送到wit.ai.

$ curl -XPOST 'https://api.wit.ai/speech?v=20141022' \
   -i -L \
   -H "Authorization: Bearer $TOKEN" \
   -H "Content-Type: audio/wav" \
   --data-binary "@sample.wav"

我正在使用Java，但我必须使用Java发送此请求，但我无法在Java中正确转换此curl请求。我无法理解什么是-i和-l以及如何在Java的后期请求中设置data-binary。

这是我到目前为止所做的

public static void main(String args[])
{
    String url = "https://api.wit.ai/speech";
    String key = "token";

    String param1 = "20170203";
    String param2 = command;
    String charset = "UTF-8";

    String query = String.format("v=%s",
            URLEncoder.encode(param1, charset));


    URLConnection connection = new URL(url + "?" + query).openConnection();
    connection.setRequestProperty ("Authorization","Bearer"+ key);
    connection.setRequestProperty("Content-Type", "audio/wav");
    InputStream response = connection.getInputStream();
    System.out.println( response.toString());
}

杰瑞·钦（Jerry Chin）

这是编写sample.wav连接的输出流的方法，请注意，以下代码段中的和之间固定了一个空格：Bearertoken

public static void main(String[] args) throws Exception {
    String url = "https://api.wit.ai/speech";
    String key = "token";

    String param1 = "20170203";
    String param2 = "command";
    String charset = "UTF-8";

    String query = String.format("v=%s",
            URLEncoder.encode(param1, charset));


    URLConnection connection = new URL(url + "?" + query).openConnection();
    connection.setRequestProperty ("Authorization","Bearer " + key);
    connection.setRequestProperty("Content-Type", "audio/wav");
    connection.setDoOutput(true);
    OutputStream outputStream = connection.getOutputStream();
    FileChannel fileChannel = new FileInputStream（path to sample.wav).getChannel();
    ByteBuffer byteBuffer = ByteBuffer.allocate(1024);

    while((fileChannel.read(byteBuffer)) != -1) {
        byteBuffer.flip();
        byte[] b = new byte[byteBuffer.remaining()];
        byteBuffer.get(b);
        outputStream.write(b);
        byteBuffer.clear();
    }

    BufferedReader response = new BufferedReader(new InputStreamReader(connection.getInputStream()));
    String line;
    while((line = response.readLine()) != null) {
        System.out.println(line);
    }
}

PS：我已经成功测试了上面的代码，它很吸引人。

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