Question

我正在尝试使用HttpClient将媒体文件发布到服务器。我的代码适用于图像文件，但视频文件（mp4）无法重播。我发布文件的代码：

   HttpClient httpclient = new DefaultHttpClient();
    httpclient.getParams().setParameter(CoreProtocolPNames.PROTOCOL_VERSION, HttpVersion.HTTP_1_1);

    HttpPost httppost = new HttpPost(REMOTE + "/add_file.php");

    MultipartEntityBuilder mpEntity = MultipartEntityBuilder.create();
    ContentBody cbFile = null;
    String mimeType = "";
    if (file.getName().endsWith(".jpg") || file.getName().endsWith(".jpeg")) {
        mimeType = "image/jpeg";
    } else if (file.getName().endsWith(".mp4")) {
         mimeType = "video/mp4";
    }


    mpEntity.addTextBody("recipient_phone", recipientPhoneStr);
    mpEntity.addTextBody("sender_phone", "55000");
    mpEntity.addTextBody("sender_key", "my_secret");
    mpEntity.addTextBody("file_name", file.getName());

    mpEntity.addTextBody("userfile", encodeFileToBase64Binary(file));

    httppost.setEntity(mpEntity.build());

    HttpResponse response = httpclient.execute(httppost);
    HttpEntity resEntity = response.getEntity();


    if (response.getStatusLine().toString().compareTo(HTTP_ERROR) == 0) {
        throw new IOException(HTTP_ERROR);
    }

    if (resEntity != null) {
        System.out.println(EntityUtils.toString(resEntity));
    }
    if (resEntity != null) {
        resEntity.consumeContent();
    }

    httpclient.getConnectionManager().shutdown();

使用Base64.encodeBase64String（bytes）;

对文件进行Base64编码

Answer 1

https://hc.apache.org/httpcomponents-client-4.3.x/examples.html

查看样本POST程序......

使用以下命令将mp4映射到字节，然后将其包装在正确的实体中。用于执行POST的类型..

            FileInputStream fis = new FileInputStream(mfile); 
            FileChannel fc = fis.getChannel(); // Get the file's size and then map it into memory
            int sz = (int)fc.size();
            MappedByteBuffer bb = fc.map(FileChannel.MapMode.READ_ONLY, 0, sz);
            byte[] data2 = new byte[bb.remaining()];
            bb.get(data2);
            ByteArrayEntityHC4 reqEntity = new ByteArrayEntityHC4(data2);
            httpPost.setEntity(reqEntity);
            fis.close();

然后在POST类型的请求上调用exec。

使用HttpClient发布Base64编码的视频文件

1 个答案: