Android 允许将多个文件（最大 150 MB）上传到 PHP 服务器

Posted 2023-03-22

【中文标题】Android 允许将多个文件（最大 150 MB）上传到 PHP 服务器

【英文标题】：Android allow multiple file upload (Max 150 MB) to PHP Server

【发布时间】：2015-07-26 10:06:06

【问题描述】：

我必须允许用户在从我的 android 应用程序到 php 服务器的单个请求中上传多个文件（可以是图像/视频/音频）。我正在使用 REST 网络服务。

对于这个功能，我使用以下代码：

/* 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();
    

而我的 MultipartUtility 类如下：

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：

在本地服务器上：

允许上传到 16MB [如果未设置 setChunkedStremmingMode(0)] 允许上传到 150MB [如果设置了 setChunkedStremmingMode(0)]

在实时服务器上：

允许上传到 16MB [如果未设置 setChunkedStremmingMode(0)] 不允许上传单个 KB 文件 [如果设置了 setChunkedStremmingMode(0)]

我的本​​地服务器和实时服务器具有相同的配置。我不明白为什么 setChunkedStremmingMode(0) 不适用于实时服务器。

【问题讨论】：

如果问题得到解决，请提供您的意见，如果没有，请反馈问题所在。

从安卓设备上传文件时，您是否收到“Android:java.lang.OutOfMemoryError: Failed to allocate a 23970828-byte allocation with 2097152 free bytes and 2MB until OOM”这个错误？我收到了这个错误，我还添加了允许堆大小为真，但它仍然会崩溃，因为我上传了大尺寸的图像。有人可以帮我做什么吗？

【参考方案1】：

我有一个项目可以上传最大 48-50 MB 的图像/文件。 [我正在使用 Retrofit 进行网络通信。] 这是示例项目的链接：https://github.com/DearDhruv/Retrofit-with-EventBus

代码如下：

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.");
    

这是服务器端代码：

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 ));

我想这可能会有所帮助。

您可能还需要在 PHP 配置中提供上传文件的最大大小。

【讨论】：

您为此付出的所有工作都很棒。请记住，链接可能会失效，您的答案会变得毫无用处。此外，当可能无法解决他们的问题时，您还强迫 OP 执行大量代码。在您的帖子中添加有用的亮点，说明您所做的与 OP 不同的地方以及为什么您的代码有效而他的无效。

不幸的是，您更改了您的 github 用户名并且您的 github 链接失效了。编辑很棒。

【参考方案2】：

请检查您服务器上处理文件上传的 php.ini 文件中的这两个设置。

; Maximum allowed size for uploaded files.
upload_max_filesize = 150M

; Must be greater than or equal to upload_max_filesize
post_max_size = 150M

您需要先在服务器上正确设置这些设置，然后才能正常上传大文件。 还要检查本地服务器上的设置。在编写处理上传的代码之前，这些设置更重要，因为根据我的说法，您的代码是正确的，因为文件上传对您有用。问题似乎与 php.ini 设置有关....

【讨论】：

请分享您在服务器和本地的设置？？