java - 尝试从 android 将图像上传到我的服务器

Question

我使用此代码将图像上传到我的网络服务器:

    public void send (View view)
    {
        HttpURLConnection connection = null;
        DataOutputStream outputStream = null;
        DataInputStream inputStream = null;

        String pathToOurFile = "sdcard/yo.jpg";
        String urlServer = "http://192.168.1.4/uplaod.php";
        String lineEnd = "\r\n";
        String twoHyphens = "--";
        String boundary = "*****";

        int bytesRead, bytesAvailable, bufferSize;
        byte[] buffer;
        int maxBufferSize = 1 * 1024 * 1024;

        try {
            FileInputStream fileInputStream = new FileInputStream(new File(pathToOurFile));

            URL url = new URL(urlServer);
            connection = (HttpURLConnection) url.openConnection();

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

            // Enable POST method
            connection.setRequestMethod("POST");

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

            outputStream = new DataOutputStream(connection.getOutputStream());
            outputStream.writeBytes(twoHyphens + boundary + lineEnd);
            outputStream.writeBytes("Content-Disposition: form-data; name=\"uploadedfile\";filename=\"" + pathToOurFile + "\"" + lineEnd);
            outputStream.writeBytes(lineEnd);

            bytesAvailable = fileInputStream.available();
            bufferSize = Math.min(bytesAvailable, maxBufferSize);
            buffer = new byte[bufferSize];

            // Read file
            bytesRead = fileInputStream.read(buffer, 0, bufferSize);

            while (bytesRead > 0) {
                outputStream.write(buffer, 0, bufferSize);
                bytesAvailable = fileInputStream.available();
                bufferSize = Math.min(bytesAvailable, maxBufferSize);
                bytesRead = fileInputStream.read(buffer, 0, bufferSize);
            }

            outputStream.writeBytes(lineEnd);
            outputStream.writeBytes(twoHyphens + boundary + twoHyphens + lineEnd);

            // Responses from the server (code and message)
            int serverResponseCode = connection.getResponseCode();
            String serverResponseMessage = connection.getResponseMessage();

            fileInputStream.close();
            outputStream.flush();
            outputStream.close();

            Log.i("ODPOWIEDZ", serverResponseMessage);
            Context context = getApplicationContext();
            Toast.makeText(context, "its here 1 ", Toast.LENGTH_LONG).show();
        } catch (Exception ex) {
            Context context = getApplicationContext();
            Toast.makeText(context, "its in catsh", Toast.LENGTH_LONG).show();
            Log.i("WYJATEK", ex.getMessage());
        }

    }

我从 LogCat 收到此消息，问题出在哪里？？

59-124/system_process D/SntpClient:请求时间失败:java.net.SocketException:协议(protocol)不支持地址族

这是我的 php 文件

<?php
    $target_path  = "uploadedfile/";
    $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";
    } 
    else {
        echo "There was an error uploading the file, please try again!";
    }
?>

Answer 1

SNTP 错误与时间协议(protocol)有关，顺便说一句，它与您的应用无关。看起来这只是模拟器试图从 ntp 服务器获取最新时间戳。直接丢弃即可。

问题仍然是别的问题。您是否注意到 php 脚本的名称可能有拼写错误？在您的代码中，您将其称为 uplaod.php。

此外，请确保您已在 list 文件中启用互联网访问:

<uses-permission android:name="android.permission.INTERNET"></uses-permission>