安卓允许多个文件上传（最大150 MB）到PHP服务器 [英] Android allow multiple file upload (Max 150 MB) to PHP Server

问题描述

我要允许用户上传多个文件（可以是图像/视频/音频）从我的Andr​​oid应用程序到PHP服务器的单个请求。我使用REST Web服务。

I have to allow a user to upload multiple files(can be image/video/audio)in a single request from my android application to the PHP server. I am using REST web service.

有关这个功能，我使用下面的code：

For this functionality, I am using the following code:

/* To upload the multiple documents */
public void uploadFile() {
    String charset = "UTF-8";
    File[] uploadFileArray = new File[mediaList.size()];

    for (int i = 0; i < mediaList.size(); i++) {
        uploadFileArray[i] = new File(mediaList.get(i).getMediaPath());
    }

    try {
        MultipartUtility multipart = new MultipartUtility(upLoadServerUri, charset);

        for (int i = 0; i < mediaList.size(); i++) {
            if (isImage)) {
                multipart.addFilePart("image_doc[]", uploadFileArray[i]);
            } 
            else if (isVideo) {
                multipart.addFilePart("video_doc[]", uploadFileArray[i]);
            } 
            else if (isAudio) {
                multipart.addFilePart("audio_doc[]", uploadFileArray[i]);
            }
        }

        List<String> responseUploadDocument = multipart.finish();
        System.out.println("SERVER REPLIED:");

        for (String line : responseUploadDocument) {
            System.out.println(line);
            responseUploadDocumentString = line;
        }

        if (responseUploadDocumentString != null) {
            JSONObject jsonObj = new JSONObject(responseUploadDocumentString);
            statusUploadDoc = jsonObj.getString("status");
        }

    } catch (Exception e) {
        e.printStackTrace();
    }
}

和我MultipartUtility类如下：

And my MultipartUtility Class is as follows:

public class MultipartUtility {
    private final String boundary;
    private static final String LINE_FEED = "\r\n";
    private HttpURLConnection httpConn;
    private String charset;
    private OutputStream outputStream;
    private PrintWriter writer;

    public MultipartUtility(String requestURL, String charset)
            throws IOException {
        this.charset = charset;

        boundary = "===" + System.currentTimeMillis() + "===";

        URL url = new URL(requestURL);
        httpConn = (HttpURLConnection) url.openConnection();

        ***httpConn.setChunkedStreamingMode(0);***
        httpConn.setUseCaches(false);
        httpConn.setDoOutput(true); // indicates POST method
        httpConn.setDoInput(true);

        httpConn.setRequestProperty("Content-Type",
                "multipart/form-data; boundary=" + boundary);
        httpConn.setRequestProperty("User-Agent", "CodeJava Agent");
        httpConn.setRequestProperty("Test", "Bonjour");

        outputStream = httpConn.getOutputStream();
        writer = new PrintWriter(new OutputStreamWriter(outputStream, charset),
                true);
    }

    public void addFormField(String name, String value) {
        writer.append("--" + boundary).append(LINE_FEED);
        writer.append("Content-Disposition: form-data; name=\"" + name + "\"")
                .append(LINE_FEED);
        writer.append("Content-Type: text/plain; charset=" + charset).append(
                LINE_FEED);
        writer.append(LINE_FEED);
        writer.append(value).append(LINE_FEED);
        writer.flush();
    }

    public void addFilePart(String fieldName, File uploadFile)
            throws IOException {
        String fileName = uploadFile.getName();
        writer.append("--" + boundary).append(LINE_FEED);
        writer.append(
                "Content-Disposition: form-data; name=\"" + fieldName
                        + "\"; filename=\"" + fileName + "\"")
                .append(LINE_FEED);
        writer.append(
                "Content-Type: "
                        + URLConnection.guessContentTypeFromName(fileName))
                .append(LINE_FEED);
        writer.append("Content-Transfer-Encoding: binary").append(LINE_FEED);
        writer.append(LINE_FEED);
        writer.flush();

        FileInputStream inputStream = new FileInputStream(uploadFile);
        byte[] buffer = new byte[4096];
        int bytesRead = -1;
        while ((bytesRead = inputStream.read(buffer)) != -1) {
            outputStream.write(buffer, 0, bytesRead);
        }
        outputStream.flush();
        inputStream.close();

        writer.append(LINE_FEED);
        writer.flush();
    }

    public void addHeaderField(String name, String value) {
        writer.append(name + ": " + value).append(LINE_FEED);
        writer.flush();
    }

    public List<String> finish() throws IOException {
        List<String> response = new ArrayList<String>();

        writer.append(LINE_FEED).flush();
        writer.append("--" + boundary + "--").append(LINE_FEED);
        writer.close();

        // checks server's status code first
        int status = httpConn.getResponseCode();
        if (status == HttpURLConnection.HTTP_OK) {
            BufferedReader reader = new BufferedReader(new InputStreamReader(
                    httpConn.getInputStream()));
            String line = null;
            while ((line = reader.readLine()) != null) {
                response.add(line);
            }
            reader.close();
            httpConn.disconnect();
        } else {
            throw new IOException("Server returned non-OK status: " + status);
        }

        return response;
    }
}

但现在的问题是：

But now the problem is:

在本地服务器：

• 允许上传至16MB [如果setChunkedStremmingMode（0）未设置]
• 允许上传至150MB [如果setChunkedStremmingMode（0）设置]

在直播服务器：

• 允许上传至16MB [如果setChunkedStremmingMode（0）未设置]
• 不允许上传一个KB的文件[如setChunkedStremmingMode（0）设置]

我的本地和现场服务器具有相同的配置。我不明白为什么setChunkedStremmingMode（0）不为活的服​​务器正常工作。

My both local and live servers have the same configurations. I don't understand why setChunkedStremmingMode(0) doesn't work for the live server.

推荐答案

我有一个可以上传图片/文件大小高达48-50 MB 项目。 [我使用的是改造中的网络通信。] 这里是链接的示例项目： https://github.com/DearDhruv/AndroidProjectStarter

I have project which can upload image/file size of upto 48-50 MB. [I'm using Retrofit for Network communication.] Here is the link for the Sample Project: https://github.com/DearDhruv/AndroidProjectStarter

下面是上传code ：<一href="https://github.com/DearDhruv/AndroidProjectStarter/blob/master/project_starter/src/com/deardhruv/projectstarter/activities/UploadFileActivity.java" rel="nofollow">https://github.com/DearDhruv/AndroidProjectStarter/blob/master/project_starter/src/com/deardhruv/projectstarter/activities/UploadFileActivity.java

code：

    private void startUploading(final File file) {

        if (file == null || !isPictureValid(file.getAbsolutePath())) {
            showMsg("File is not valid, try again.");
        } else if (file.exists()) {
            showProgressDialog();
            String mimeType = "image/jpeg"
                    // "application/octet-stream"
                    // "multipart/form-data"
                    // "image/*"
                    // "multipart/mixed"
                    ;

            TypedFile typedFile = new TypedFile(mimeType, file);
            mApiClient.uploadFile(UPLOAD_FILE_REQUEST_TAG, typedFile);

        } else {
            showMsg("File is corrupted.");
        }
    }

下面是服务器端的 PHP上传code ：https://github.com/DearDhruv/AndroidProjectStarter/blob/master/3rd_Party/html/php/upload.php

code：

    class ImageUploadStatus {
    public $result_code = 0;
    public $message = "Image upload failed.";}
    class ImageResults {
    public $name = "";
    public $url = "";
    public $size = "";
}
$status = new ImageUploadStatus ();
$results = new ImageResults ();

if ($_FILES ["file"] ["error"] > 0) {
    header ( "HTTP/1.1 400 Bad Request" );
    // echo "Error: " . $_FILES ["file"] ["error"] . "<br /> \n";
    $status->message = "Error: " . $_FILES ["file"] ["error"];
} else {
    if ($_FILES ["file"] ["error"] > 0) {
        // echo "Error: " . $_FILES ["file"] ["error"] . "<br /> \n";
        $status->message = "Error: " . $_FILES ["file"] ["error"];
    } else {
        // echo "Upload: " . $_FILES ["file"] ["name"] . "<br /> \n";
        // echo "Type: " . $_FILES ["file"] ["type"] . "<br /> \n";
        // echo "Size: " . ($_FILES ["file"] ["size"] / 1024) . " Kb<br /> \n";
        // echo "Stored in: " . $_FILES ["file"] ["tmp_name"] . "<br /> \n";
    }

    $target_path = "../api/uploads/";
    $target_path = $target_path . basename ( $_FILES ['file'] ['name'] );

    //if (is_uploaded_file ( $_FILES ['uploadedfile'] ['tmp_name'] )) {
        // echo "There was an error uploading the file, please try again!";
        //$status->message = "There was an error uploading the file, please try again!";
    //}

    if (move_uploaded_file ( $_FILES ['file'] ['tmp_name'], $target_path )) {
        // echo "The file " . basename ( $_FILES ['file'] ['name'] ) . " has been uploaded";

        $status->message = "Image upload successful";
        $status->result_code = 1;

        $results->name = $_FILES ["file"] ["name"] . "";
        $results->url = $target_path . "";
        $results->size = ($_FILES ["file"] ["size"] / 1); // 1024 to convert in KB
    } else {
        // echo "There was an error Moving the file, please try again!";
        //$status->message = "There was an error Moving the file, please try again!";

         switch($_FILES['file']['error']){
            case 0: //no error; possible file attack!
              $status->message =  "There was a problem with your upload.";
              break;
            case 1: //uploaded file exceeds the upload_max_filesize directive in php.ini
              $status->message =  "The file you are trying to upload is too big.";
              break;
            case 2: //uploaded file exceeds the MAX_FILE_SIZE directive that was specified in the html form
              $status->message =  "The file you are trying to upload is too big.";
              break;
            case 3: //uploaded file was only partially uploaded
                $status->message =  "The file you are trying upload was only partially uploaded.";
              break;
            case 4: //no file was uploaded
              $status->message =  "You must select an image for upload.";
              break;
            default: //a default error, just in case!  :)
              $status->message =  "There was a problem with your upload.";
              break;
          }

        }

    $response = array (
            'status' => $status,
            'results' => $results 
    );

    // echo (json_encode ( $status ));
    // echo (json_encode ( $results ));
    echo (json_encode ( $response ));
}

我想这可能是有益的。

I guess this might be helpful.

您可能还需要提供上载文件的最大尺寸的PHP配置。

You might also need to give the max size of upload file in php configuration.

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