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我有一个向服务器发送 1 个或多个 zip 文件的 android 应用程序。我想随文件一起发送一些额外的表单数据，因为表单数据将用于确定文件的配置。

我已经能够使用多部分作为内容类型上传文件，但我似乎无法让服务器端的 php 同时查看表单数据和文件。

我想知道的是如何使用 android 端的 HTTPUrlConnection 和服务器端的 PHP 将表单数据和文件列表发送到服务器。

我相信我的问题与 Content-Type 和 Content-Disposition 有关。如果有人能指出一个明确的例子，或者解释我做错了什么，我会非常感激。

感谢您花时间研究这个问题。

这是最新的，修改后的 android 代码：

String postDriverUpload(File[] fileList) {
        HttpURLConnection connection = null;
        DataOutputStream outputStream = null;
        String tag = TAG + "postDriverInfo()";
        URL url = null;
        String result = OK_TO_CONTINUE;

        String targetUrl = server + "/upload.php";

        try {
            url = new URL(targetUrl);
        } catch (MalformedURLException e) {
            result = "ERROR: [" + targetUrl + "] can't be parsed into a URL.";
            Log.e(tag, result, e);
            return result;
        }

        try {
            connection = (HttpURLConnection) url.openConnection();
        } catch (IOException e) {
            result = "ERROR: IOException.";
            Log.e(tag, result, e);
            return result;
        }

        // Allow Inputs and Outputs
        connection.setDoInput(true);
        connection.setDoOutput(true);
        connection.setUseCaches(false);

        // Enable POST method

        try {
            connection.setRequestMethod("POST");
        } catch (ProtocolException e) {
            result = "Error: Protocol Exception.";
            Log.e(tag, result, e);
            return result;
        }

        connection.setRequestProperty("Connection", "Keep-Alive");
        connection.setRequestProperty("Content-Type",
                "multipart/form-data;boundary=" + BOUNDARY);

        // Encode driver userName
        List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>();
        try {
            nameValuePairs.add(new BasicNameValuePair("userName", driver
                    .getUserName()));
            Log.d(tag, "Encoded userName='driver' is: "
                    + encodeData(nameValuePairs));

            // Create output Stream to send data to server
            outputStream = new DataOutputStream(connection.getOutputStream());
            writeBoundary(outputStream);
            outputStream
                    .writeBytes("Content-Disposition: form-data; name=\"userName\" "
                            + EOL + EOL);
            outputStream.writeBytes(driver.getUserName() + EOL);
            writeBoundary(outputStream);

            // Starting the Files part
            outputStream
                    .writeBytes("Content-Disposition: form-data; name=\"files\" "
                            + EOL + EOL);
            outputStream.writeBytes("Content-Type: multipart/mixed; boundary="
                    + FILE_BOUNDARY + EOL);
            // Adding the file parts
            for (File file : fileList) {
                writeFileBoundary(outputStream);
                // write out file
                String contentType = String.format(
                        "Content-Disposition:file; filename=\"%s\"" + EOL
                                + "Content-Type: application/x-zip-compressed",
                        file.getName())
                        + EOL + EOL;
                Log.d(tag, "Content-Type = " + contentType);
                outputStream.write(contentType.getBytes());
            }
            writeFileBoundary(outputStream);
            writeBoundary(outputStream);
            outputStream.flush();
            outputStream.close();
        } catch (UnsupportedEncodingException e) {
            result = "Error: UnsupportedEncodingException ";
            Log.e(tag, result, e);
            return result;
        } catch (IOException e) {
            result = "Error: IOException ";
            Log.e(tag, result, e);
            return result;
        }

        // Get Response from server (code and message)
        try {
            int serverResponseCode = connection.getResponseCode();
            String serverResponseMessage = connection.getResponseMessage();
            Log.d(tag, "Response Code = " + serverResponseCode);
            Log.d(tag, "Response Message = " + serverResponseMessage);
        } catch (IOException e) {
            result = "Error getting response from server.";
            Log.e(tag, result, e);
            return result;
        }
        final StringBuilder out = new StringBuilder();
        try {
            BufferedReader in = new BufferedReader(new InputStreamReader(
                    connection.getInputStream()));
            String line;
            while (null != (line = in.readLine())) {
                if (line.contains("ERROR")) {
                    Log.d(tag, "HTTPResponse: " + out.toString());
                    result = "Error: HTTPResponse: " + out.toString();
                    break;
                }
                out.append(line + "\n\n");
            }
            Log.d(tag, "HTTPResponse: " + out.toString());

        } catch (IOException e) {
            Log.w(tag, "WARNING: ", e);
        }

        return result;
    }


void writeBoundary(DataOutputStream out) throws IOException {
    final String twoHyphens = "--";
    out.writeBytes(twoHyphens + BOUNDARY + EOL);
}

void writeFileBoundary(DataOutputStream out) throws IOException {
    final String twoHyphens = "--";
    out.writeBytes(twoHyphens + FILE_BOUNDARY + EOL);
}

这是我在 Android 端的日志记录的输出。如您所见，键、userName 和值 rbenjamin 已正确加载到 $_POST 变量中，但在此之后有些内容不正确。我用 BOUNDARY 分隔下一部分，但它似乎被变量“文件”的值吞噬了。我很接近，但我仍然错过了一些东西。（我在下面的日志文件中删除了大部分噪音。）

: Upload Button Clicked.
: Compiling upload file
: getting delivered SQL = SELECT * FROM deliveryorder WHERE delivereddatetime != ''
: uploadEnabled = true
: downloadEnabled = false
: driverEmail = ray.benjamin@gmail.com
: Starting, getting database.
: Found 1 drivers.
: Processing driver 1
: user name is rbenjamin
: email is ray.benjamin@gmail.com
: Uploading files using HTTP to http://192.168.1.17:8080
: There are 16 files.
: Checking download - enabled? false
: Encoded userName='driver' is: userName=rbenjamin
: Content-Type = Content-Disposition:file; filename="upload20130820_1015.zip"

: Content-Type: application/x-zip-compressed

: 

: Content-Type = Content-Disposition:file; filename="upload20130820_1048.zip"

: Content-Type: application/x-zip-compressed

: 

: Content-Type = Content-Disposition:file; filename="upload20130821_1624.zip"

: Content-Type: application/x-zip-compressed

: 

: Content-Type = Content-Disposition:file; filename="upload20130821_1628.zip"

: Content-Type: application/x-zip-compressed

: 

: Content-Type = Content-Disposition:file; filename="upload20130821_1645.zip"

: Content-Type: application/x-zip-compressed

: 

: Content-Type = Content-Disposition:file; filename="upload20130821_1647.zip"

: Content-Type: application/x-zip-compressed

: 

: Content-Type = Content-Disposition:file; filename="upload20130821_1705.zip"

: Content-Type: application/x-zip-compressed

: 

: Content-Type = Content-Disposition:file; filename="upload20130821_1709.zip"

: Content-Type: application/x-zip-compressed

: 

: Content-Type = Content-Disposition:file; filename="upload20130821_1746.zip"

: Content-Type: application/x-zip-compressed

: 

: Content-Type = Content-Disposition:file; filename="upload20130821_1801.zip"

: Content-Type: application/x-zip-compressed

: 

: Content-Type = Content-Disposition:file; filename="upload20130821_1804.zip"

: Content-Type: application/x-zip-compressed

: 

: Content-Type = Content-Disposition:file; filename="upload20130821_1811.zip"

: Content-Type: application/x-zip-compressed

: 

: Content-Type = Content-Disposition:file; filename="upload20130821_1813.zip"

: Content-Type: application/x-zip-compressed

: 

: Content-Type = Content-Disposition:file; filename="upload20130821_1821.zip"

: Content-Type: application/x-zip-compressed

: 

: Content-Type = Content-Disposition:file; filename="upload20130821_2050.zip"

: Content-Type: application/x-zip-compressed

: 

: Content-Type = Content-Disposition:file; filename="upload20130825_1957.zip"

: Content-Type: application/x-zip-compressed

: 

: Response Code = 200
: Response Message = OK
: HTTPResponse: <!DOCTYPE html>
: <html>
: <body>
: POST is defined.<br>Key = userName"_, Value = rbenjamin<br>Key = files"_, Value = Content-Type: multipart/mixed; boundary=**FILE*BOUNDARY***25WLqf@***
: --**FILE*BOUNDARY***25WLqf@***
: Content-Disposition:file; filename="upload20130820_1015.zip"
: Content-Type: application/x-zip-compressed
: --**FILE*BOUNDARY***25WLqf@***
: Content-Disposition:file; filename="upload20130820_1048.zip"
: Content-Type: application/x-zip-compressed
: --**FILE*BOUNDARY***25WLqf@***
: Content-Disposition:file; filename="upload20130821_1624.zip"
: Content-Type: application/x-zip-compressed
: --**FILE*BOUNDARY***25WLqf@***
: Content-Disposition:file; filename="upload20130821_1628.zip"
: Content-Type: application/x-zip-compressed
: --**FILE*BOUNDARY***25WLqf@***
: Content-Disposition:file; filename="upload20130821_1645.zip"
: Content-Type: application/x-zip-compressed
: --**FILE*BOUNDARY***25WLqf@***
: Content-Disposition:file; filename="upload20130821_1647.zip"
: Content-Type: application/x-zip-compressed
: --**FILE*BOUNDARY***25WLqf@***
: Content-Disposition:file; filename="upload20130821_1705.zip"
: Content-Type: application/x-zip-compressed
: --**FILE*BOUNDARY***25WLqf@***
: Content-Disposition:file; filename="upload20130821_1709.zip"
: Content-Type: application/x-zip-compressed
: --**FILE*BOUNDARY***25WLqf@***
: Content-Disposition:file; filename="upload20130821_1746.zip"
: Content-Type: application/x-zip-compressed
: --**FILE*BOUNDARY***25WLqf@***
: Content-Disposition:file; filename="upload20130821_1801.zip"
: Content-Type: application/x-zip-compressed
: --**FILE*BOUNDARY***25WLqf@***
: Content-Disposition:file; filename="upload20130821_1804.zip"
: Content-Type: application/x-zip-compressed
: --**FILE*BOUNDARY***25WLqf@***
: Content-Disposition:file; filename="upload20130821_1811.zip"
: Content-Type: application/x-zip-compressed
: --**FILE*BOUNDARY***25WLqf@***
: Content-Disposition:file; filename="upload20130821_1813.zip"
: Content-Type: application/x-zip-compressed
: --**FILE*BOUNDARY***25WLqf@***
: Content-Disposition:file; filename="upload20130821_1821.zip"
: Content-Type: application/x-zip-compressed
: --**FILE*BOUNDARY***25WLqf@***
: Content-Disposition:file; filename="upload20130821_2050.zip"
: Content-Type: application/x-zip-compressed
: --**FILE*BOUNDARY***25WLqf@***
: Content-Disposition:file; filename="upload20130825_1957.zip"
: Content-Type: application/x-zip-compressed
: --**FILE*BOUNDARY***25WLqf@***<br>
: Notice: Undefined index: userName in /var/www-pbs/upload.php on line 15
: Call Stack:
:     0.0083     638888   1. {main}() /var/www-pbs/upload.php:0
: User Name is: <br>FILES is defined.<br>
: Notice: Undefined index: file in /var/www-pbs/upload.php on line 24
: Call Stack:
:     0.0083     638888   1. {main}() /var/www-pbs/upload.php:0
: <p>Dumping _FILES</p>
: Notice: Undefined index: file in /var/www-pbs/upload.php on line 34
: Call Stack:
:     0.0083     638888   1. {main}() /var/www-pbs/upload.php:0
: Notice: Undefined index: file in /var/www-pbs/upload.php on line 40
: Call Stack:
:     0.0083     638888   1. {main}() /var/www-pbs/upload.php:0
: Upload: <br>
: Notice: Undefined index: file in /var/www-pbs/upload.php on line 41
: Call Stack:
:     0.0083     638888   1. {main}() /var/www-pbs/upload.php:0
: Type  : <br>
: Notice: Undefined index: file in /var/www-pbs/upload.php on line 42
: Call Stack:
:     0.0083     638888   1. {main}() /var/www-pbs/upload.php:0
: Size  : 0 kB<br>
: Notice: Undefined index: file in /var/www-pbs/upload.php on line 43
: Call Stack:
:     0.0083     638888   1. {main}() /var/www-pbs/upload.php:0
: Stored in: 
: Notice: Undefined index: file in /var/www-pbs/upload.php on line 45
: Call Stack:
:     0.0083     638888   1. {main}() /var/www-pbs/upload.php:0
: Notice: Undefined index: file in /var/www-pbs/upload.php on line 47
: Call Stack:
:     0.0083     638888   1. {main}() /var/www-pbs/upload.php:0
:  already exists.
: </body>
: </html>
: 200
4

1 回答 1

5

没有人回答我的问题，但我最终在这里找到了我需要的东西： 一篇关于以编程方式发送多部分表单的 www.codejava.net 文章。这正是医生吩咐的。本文为您提供了一个类 MultipartUtility，它使使用 HTTPURLConnection 轻松上传。它不仅是一个答案，而且是一个结构良好的答案。我不得不为Android稍微调整一下，但不多。

于 2013-09-04T18:41:04.427 回答