问安卓:如何上传.mp3文件到http服务器？

EN

public class HttpMultipartUpload {
    static String lineEnd = "\r\n";
    static String twoHyphens = "--";
    static String boundary = "AaB03x87yxdkjnxvi7";

    public static String upload(URL url, File file, String fileParameterName, HashMap<String, String> parameters)
            throws IOException {
        HttpURLConnection conn = null;
        DataOutputStream dos = null;
        DataInputStream dis = null;
        FileInputStream fileInputStream = null;

        byte[] buffer;
        int maxBufferSize = 20 * 1024;
        try {
            //------------------ CLIENT REQUEST
            fileInputStream = new FileInputStream(file);

            // open a URL connection to the Servlet
            // 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("Content-Type", "multipart/form-data;boundary=" + boundary);

            dos = new DataOutputStream(conn.getOutputStream());

            dos.writeBytes(twoHyphens + boundary + lineEnd);
            dos.writeBytes("Content-Disposition: form-data; name=\"" + fileParameterName
                    + "\"; filename=\"" + file.toString() + "\"" + lineEnd);
            dos.writeBytes("Content-Type: text/xml" + lineEnd);
            dos.writeBytes(lineEnd);

            // create a buffer of maximum size
            buffer = new byte[Math.min((int) file.length(), maxBufferSize)];
            int length;
            // read file and write it into form...
            while ((length = fileInputStream.read(buffer)) != -1) {
                dos.write(buffer, 0, length);
            }

            for (String name : parameters.keySet()) {
                dos.writeBytes(lineEnd);
                dos.writeBytes(twoHyphens + boundary + lineEnd);
                dos.writeBytes("Content-Disposition: form-data; name=\"" + name + "\"" + lineEnd);
                dos.writeBytes(lineEnd);
                dos.writeBytes(parameters.get(name));
            }

            // send multipart form data necessary after file data...
            dos.writeBytes(lineEnd);
            dos.writeBytes(twoHyphens + boundary + twoHyphens + lineEnd);
            dos.flush();
        } finally {
            if (fileInputStream != null) fileInputStream.close();
            if (dos != null) dos.close();
        }

        //------------------ read the SERVER RESPONSE
        try {
            dis = new DataInputStream(conn.getInputStream());
            StringBuilder response = new StringBuilder();

            String line;
            while ((line = dis.readLine()) != null) {
                response.append(line).append('\n');
            }

            return response.toString();
        } finally {
            if (dis != null) dis.close();
        }
    }
}

#add header Content-Disposition
location ^~ /upload/pictures {

        default_type application/octet-stream;

    types {
            image/gif     gif;
            image/jpeg    jpg;
            image/png    png;
    }

    add_header X-Content-Type-Options 'nosniff';

    if ($request_filename ~ /(((?!\.(jpg)|(png)|(gif)$)[^/])+$)) {
        add_header Content-Disposition 'attachment; filename="$1"';
            # Add X-Content-Type-Options again, as using add_header in a new context
            # dismisses all previous add_header calls:
            add_header X-Content-Type-Options 'nosniff';
        }
}

#do NOT parse PHP script on the upload folder
location ~ \.php$ {
    try_files $uri =404;
    include /etc/nginx/fastcgi_params;
    #if is the upload folder DO NOT parse PHP scripts on it
    if ($uri !~ "^/upload/pictures") {
        fastcgi_pass unix:/var/run/php-fastcgi/php-fastcgi.socket;
    }
    fastcgi_index index.php;
    fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
}

private View.OnClickListener btnUpload = new View.OnClickListener() {
    @Override
    public void onClick(View v) {
        new doFileUpload().execute();
    }
};

public class doFileUpload extends AsyncTask<Void, Void, Void> {

    @Override
    protected Void doInBackground(Void... params) {

        <Keaton's code>

     return null;
   }
}