Question

因此，我正在尝试将android手机中的POST请求发送到服务器（笔记本电脑），它们都在同一网络上。我收到如上所述的错误。我以为这可能与防火墙有关，但是我禁用了它。我打开Firefox控制台，看到此错误 The script from “http://192.168.56.1:8080/upload_db.php” was loaded even though its MIME type (“application/x-httpd-php”) is not a valid JavaScript MIME type.。

有关更多背景信息，我正在将（db2）.db文件从手机上载到服务器。所以这是我用来上传此文件的代码。

    public class UploadTaskAsync extends AsyncTask<String, String, String>{

        @Override
        protected String doInBackground(String... strings) {
            try {

                String url = "http://192.168.56.1:8080/upload_db.php";
                String charset = "UTF-8";
                File dbFile= new File(Environment.getExternalStorageDirectory()+"/databasesFolder/userDB.db");
                String boundary = Long.toHexString(System.currentTimeMillis()); // Just generate some unique random value.
                String CRLF = "\r\n"; // Line separator required by multipart/form-data.

                URLConnection connection;

                connection = new URL(url).openConnection();
                connection.setDoOutput(true);
                connection.setRequestProperty("Content-Type", "application/x-sqlite3; boundary=" + boundary);

                try (
                        OutputStream output = connection.getOutputStream();
                        PrintWriter writer = new PrintWriter(new OutputStreamWriter(output, charset), true);
                ) {

                    writer.append("--" + boundary).append(CRLF);
                    writer.append("Content-Disposition: form-data; name=\"uploaded_file\"; filename=\"" + dbFile.getName() + "\"").append(CRLF);
                    writer.append("Content-Type: application/x-sqlite3; charset=" + charset).append(CRLF); // Text file itself must be saved in this charset!
                    writer.append(CRLF).flush();
                    FileInputStream vf = new FileInputStream(dbFile);
                    try {
                        byte[] buffer = new byte[1024];
                        int bytesRead = 0;
                        while ((bytesRead = vf.read(buffer, 0, buffer.length)) >= 0)
                        {
                            output.write(buffer, 0, bytesRead);

                        }
                        //   output.close();
                        //Toast.makeText(getApplicationContext(),"Read Done", Toast.LENGTH_LONG).show();
                    }catch (Exception exception)
                    {


                        //Toast.makeText(getApplicationContext(),"output exception in catch....."+ exception + "", Toast.LENGTH_LONG).show();
                        Log.d("Error", String.valueOf(exception));
                        publishProgress(String.valueOf(exception));
                        // output.close();

                    }

                    output.flush(); // Important before continuing with writer!
                    writer.append(CRLF).flush(); // CRLF is important! It indicates end of boundary.


                    // End of multipart/form-data.
                    writer.append("--" + boundary + "--").append(CRLF).flush();
                } catch (UnsupportedEncodingException e) {
                    e.printStackTrace();
                } catch (IOException e) {
                    e.printStackTrace();
                }

                // Request is lazily fired whenever you need to obtain information about response.
                int responseCode = ((HttpURLConnection) connection).getResponseCode();
                System.out.println(responseCode); // Should be 200

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

            return null;
        }


        @Override
        protected void onProgressUpdate(String... text) {
            Toast.makeText(getApplicationContext(), "In Background Task " + text[0], Toast.LENGTH_LONG).show();
        }

    }

这是我正在使用的后端代码，如下所示：

<?php 
$file_path = "C:\\Users\\<username>\\Documents\\";

$file = $file_path . basename($_FILES['uploaded_file']['name']);

if (move_uploaded_file($_FILES['uploaded_file']['tmp_name'], $file)) {
    echo "Uploaded";
} else {
    echo "fail";
}
?>

对于服务器设置，我正在使用npm http-server。这是因为我的服务器未在端口8080上侦听还是在android应用程序端？如果有人能指出我正确的方向，那就太好了。这个看似简单的任务占用了太多时间。据我了解，当我使用http-server .启动服务器时，服务器不需要任何身份验证即可接受发布请求。服务器在电话浏览器上可以正常打开，我可以看到已编写的index.html。因此，我知道服务器可以运行。但是，我不知道我在移动应用程序部分出了什么问题。

Answer 1

JS（NPM）HTTP服务器不执行PHP脚本。您必须设置臭名昭著的WAMP堆栈，以便在通过URL调用PHP脚本时执行该脚本。

Setting Up Apache/MySQL/PHP (AMP) on Linux (LAMP), Windows (WAMP) and Mac OS (MAMP)

另一方面，您还可以使用ADB Reverse将端口从设备转发到笔记本电脑。

java.net.ConnectException：无法连接到/ localhost：8080

1 个答案: