Android:如何将 .mp3 文件上传到 http 服务器? [英] Android:How to upload .mp3 file to http server?

问题描述

我想将 .mp3 文件(仅)从设备上传到我的服务器.

I want to upload .mp3 file(only) from device to my server.

我想浏览媒体数据的路径并选择任何mp3文件并上传.

I want to browse path of media data and select any mp3 file and upload it.

我该怎么做?

推荐答案

我的最终工作 JAVA 和 PHP 代码将文件从 Android 的 SD 卡上传到我自己的 Web 服务器.

My final working JAVA and PHP code to upload a file from the Android's SD card to my own Web Server.

Java/Android 代码:

private void doFileUpload() {

    HttpURLConnection conn = null;
    DataOutputStream dos = null;
    DataInputStream inStream = null;
    String existingFileName = Environment.getExternalStorageDirectory().getAbsolutePath() + "/mypic.png";
    String lineEnd = "
";
    String twoHyphens = "--";
    String boundary = "*****";
    int bytesRead, bytesAvailable, bufferSize;
    byte[] buffer;
    int maxBufferSize = 1 * 1024 * 1024;
    String responseFromServer = "";
    String urlString = "http://mywebsite.com/directory/upload.php";

    try {

        //------------------ CLIENT REQUEST
        FileInputStream fileInputStream = new FileInputStream(new File(existingFileName));
        // open a URL connection to the Servlet
        URL url = new URL(urlString);
        // Open a HTTP connection to the URL
        conn = (HttpURLConnection) url.openConnection();
        // Allow Inputs
        conn.setDoInput(true);
        // Allow Outputs
        conn.setDoOutput(true);
        // Don't use a cached copy.
        conn.setUseCaches(false);
        // Use a post method.
        conn.setRequestMethod("POST");
        conn.setRequestProperty("Connection", "Keep-Alive");
        conn.setRequestProperty("Content-Type", "multipart/form-data;boundary=" + boundary);
        dos = new DataOutputStream(conn.getOutputStream());
        dos.writeBytes(twoHyphens + boundary + lineEnd);
        dos.writeBytes("Content-Disposition: form-data; name="uploadedfile";filename="" + existingFileName + """ + lineEnd);
        dos.writeBytes(lineEnd);
        // create a buffer of maximum size
        bytesAvailable = fileInputStream.available();
        bufferSize = Math.min(bytesAvailable, maxBufferSize);
        buffer = new byte[bufferSize];
        // read file and write it into form...
        bytesRead = fileInputStream.read(buffer, 0, bufferSize);

        while (bytesRead > 0) {

            dos.write(buffer, 0, bufferSize);
            bytesAvailable = fileInputStream.available();
            bufferSize = Math.min(bytesAvailable, maxBufferSize);
            bytesRead = fileInputStream.read(buffer, 0, bufferSize);

        }

        // send multipart form data necesssary after file data...
        dos.writeBytes(lineEnd);
        dos.writeBytes(twoHyphens + boundary + twoHyphens + lineEnd);
        // close streams
        Log.e("Debug", "File is written");
        fileInputStream.close();
        dos.flush();
        dos.close();

    } catch (MalformedURLException ex) {
        Log.e("Debug", "error: " + ex.getMessage(), ex);
    } catch (IOException ioe) {
        Log.e("Debug", "error: " + ioe.getMessage(), ioe);
    }

    //------------------ read the SERVER RESPONSE
    try {

        inStream = new DataInputStream(conn.getInputStream());
        String str;

        while ((str = inStream.readLine()) != null) {

            Log.e("Debug", "Server Response " + str);

        }

        inStream.close();

    } catch (IOException ioex) {
        Log.e("Debug", "error: " + ioex.getMessage(), ioex);
    }
}

要在您的服务器上运行的相关 PHP 代码 (upload.php):

<?php
// Where the file is going to be placed 
$target_path = "uploads/";

/* Add the original filename to our target path.  
Result is "uploads/filename.extension" */
$target_path = $target_path . basename( $_FILES['uploadedfile']['name']); 

if(move_uploaded_file($_FILES['uploadedfile']['tmp_name'], $target_path)) {
    echo "The file ".  basename( $_FILES['uploadedfile']['name']). 
    " has been uploaded";
    chmod ("uploads/".basename( $_FILES['uploadedfile']['name']), 0644);
} else{
    echo "There was an error uploading the file, please try again!";
    echo "filename: " .  basename( $_FILES['uploadedfile']['name']);
    echo "target_path: " .$target_path;
}
?>

注意事项.
1) 我在 SD 卡的根目录中有mypic.png".例如，如果您通过 Mass Storage USB 视图查看 Android 设备，您会将文件放在您遇到的第一个目录中.

Things to note.
1) I had "mypic.png" within the root directory of the SD card. As in, if you looked at the Android device through Mass Storage USB view you would put the file in the first directory you come across.

2) 必须在手机上关闭 USB 大容量存储！或者只是将其从您正在编写代码的计算机上完全拔掉以确保是这种情况.

2) USB MASS STORAGE MUST BE TURNED OFF ON THE PHONE! Or just completely unplug it from the computer you are writing the code on to assure this is the case.

3) 我必须在与我的 php 文件相同的目录中创建一个上传"文件夹.

3) I had to create an "uploads" folder in the same directory as my php file.

4) 您显然必须更改我写为 http://mywebsite.com/directory 的网址/upload.php 成为您自己的网站.

4) You obviously must change the web address I have written as http://mywebsite.com/directory/upload.php to be your own website.

这篇关于Android:如何将 .mp3 文件上传到 http 服务器?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！