Android：将图像上传到PHP服务器

我写了一个脚本,将从相机拍摄的图像上传到我的服务器.我得到200OK响应,但我没有在上传/文件夹中看到我的服务器上的图像：

也许我的脚本包含错误.请问你能帮帮我吗 ？

我的例子是以下链接：http://androidexample.com/Upload_File_To_Server_-_Android_Example/index.php?view=article_discription&aid=83&aaid=106

这是完整的Android类：

import java.io.DataOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.text.SimpleDateFormat;
import java.util.Date;

import android.app.ActionBar;
import android.app.Activity;
import android.app.ProgressDialog;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Color;
import android.graphics.drawable.ColorDrawable;
import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.provider.MediaStore;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.ImageButton;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;

public class New_annonce_act_step3 extends Activity {

    private static final int REQUEST_IMAGE = 100;   

    TextView tvPath;
    TextView txtHaut;
    ImageView preview;
    File destination;
    String imagePath;
    ImageButton takePhoto;
    Button btnCreate;

    int serverResponseCode = 0;
    ProgressDialog dialog = null;

    String upLoadServerUri = null;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        // Todo Auto-generated method stub
        super.onCreate(savedInstanceState);

        setContentView(R.layout.nouvelle_annonce_step3);

        // Change color of action bar
        ActionBar bar = getActionBar();
        bar.setBackgroundDrawable(new ColorDrawable(Color.parseColor("#0099CC")));

        preview = (ImageView) findViewById(R.id.nouvelle_annonce_step3_phototaken_preview);
        btnCreate = (Button) findViewById(R.id.nouvelle_annonce_step3_btn) ;
        txtHaut = (TextView) findViewById(R.id.nouvelle_annonce_step3_texteHaut);
        takePhoto = (ImageButton) findViewById(R.id.nouvelle_annonce_choose_image);
        preview.setVisibility(View.GONE);

        upLoadServerUri = "http://mywebsite.com/database/PDO/uploadFile.PHP";

        String name = datetoString(new Date(),"yyyy-MM-dd-hh-mm-ss");
        destination = new File(Environment.getExternalStorageDirectory(),name + ".jpg");

        takePhoto.setonClickListener(new OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
                intent.putExtra(MediaStore.EXTRA_OUTPUT,Uri.fromFile(destination));
                startActivityForResult(intent,REQUEST_IMAGE);
            }
        });

        btnCreate.setonClickListener(new OnClickListener() {
            @Override
            public void onClick(View v) {
                dialog = ProgressDialog.show(New_annonce_act_step3.this,"","Uploading file...",true);

                new Thread(new Runnable() {
                    public void run() {              
                        uploadFile(imagePath);
                    }
                }).start();        
            }

        });





    }

    @Override
    protected void onActivityResult(int requestCode,int resultCode,Intent data) {
        if( requestCode == REQUEST_IMAGE && resultCode == Activity.RESULT_OK ){
            try {
                preview.setVisibility(View.VISIBLE);
                takePhoto.setVisibility(View.GONE);
                txtHaut.setText("Cette image est parfaite !");
                FileInputStream in = new FileInputStream(destination);
                BitmapFactory.Options options = new BitmapFactory.Options();
                options.inSampleSize = 10;
                imagePath = destination.getAbsolutePath();
                Log.d("INFO","PATH === " +imagePath);
                //tvPath.setText(imagePath);
                Bitmap bmp = BitmapFactory.decodeStream(in,null,options);
                preview.setimageBitmap(bmp);
            } catch (FileNotFoundException e) {
                e.printstacktrace();
            }

        }
        else{
            tvPath.setText("Request cancelled");
        }
    }

    public String datetoString(Date date,String format) {
        SimpleDateFormat df = new SimpleDateFormat(format);
        return df.format(date);
    }

    public int uploadFile(String sourceFileUri) {

        String fileName = sourceFileUri;

        HttpURLConnection conn = null;
        DataOutputStream dos = null;  
        String lineEnd = "\r\n";
        String twoHyphens = "--";
        String boundary = "*****";
        int bytesRead,bytesAvailable,bufferSize;
        byte[] buffer;
        int maxBufferSize = 1 * 1024 * 1024; 
        File sourceFile = new File(sourceFileUri); 

        if (!sourceFile.isFile()) {
            dialog.dismiss(); 
            Log.e("uploadFile","Source File not exist :" +imagePath);
            return 0;
        }
        else
        {
            try { 

                // open a URL connection to the Servlet
                FileInputStream fileInputStream = new FileInputStream(sourceFile);
                URL url = new URL(upLoadServerUri);

                // Open a HTTP  connection to  the URL
                conn = (HttpURLConnection) url.openConnection(); 
                conn.setDoInput(true); // Allow Inputs
                conn.setDoOutput(true); // Allow Outputs
                conn.setUseCaches(false); // Don't use a Cached copy
                conn.setRequestMethod("POST");
                conn.setRequestProperty("Connection","Keep-Alive");
                conn.setRequestProperty("ENCTYPE","multipart/form-data");
                conn.setRequestProperty("Content-Type","multipart/form-data;boundary=" + boundary);
                conn.setRequestProperty("uploaded_file",fileName); 

                dos = new DataOutputStream(conn.getoutputStream());

                dos.writeBytes(twoHyphens + boundary + lineEnd); 
                dos.writeBytes("Content-disposition: form-data; name=\"uploaded_file\";filename="+ fileName + "" + lineEnd);
                dos.writeBytes(lineEnd);

                // create a buffer of  maximum size
                bytesAvailable = fileInputStream.available(); 

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

                // read file and write it into form...
                bytesRead = fileInputStream.read(buffer,bufferSize);  

                while (bytesRead > 0) {

                    dos.write(buffer,bufferSize);
                    bytesAvailable = fileInputStream.available();
                    bufferSize = Math.min(bytesAvailable,maxBufferSize);
                    bytesRead = fileInputStream.read(buffer,bufferSize);   

                }

                // send multipart form data necesssary after file data...
                dos.writeBytes(lineEnd);
                dos.writeBytes(twoHyphens + boundary + twoHyphens + lineEnd);

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

                Log.i("uploadFile","HTTP Response is : "+ serverResponseMessage + ": " + serverResponseCode);

                if(serverResponseCode == 200){

                    runOnUiThread(new Runnable() {
                        public void run() {

                            Toast.makeText(New_annonce_act_step3.this,"File Upload Complete.",Toast.LENGTH_SHORT).show();
                        }
                    });                
                }    

                //close the streams //
                fileInputStream.close();
                dos.flush();
                dos.close();

            } catch (MalformedURLException ex) {

                dialog.dismiss();  
                ex.printstacktrace();

                runOnUiThread(new Runnable() {
                    public void run() {

                        Toast.makeText(New_annonce_act_step3.this,"MalformedURLException",Toast.LENGTH_SHORT).show();
                    }
                });

                Log.e("Upload file to server","error: " + ex.getMessage(),ex);  
            } catch (Exception e) {

                dialog.dismiss();  
                e.printstacktrace();

                runOnUiThread(new Runnable() {
                    public void run() {

                        Toast.makeText(New_annonce_act_step3.this,"Got Exception : see logcat ",Toast.LENGTH_SHORT).show();
                    }
                });
                Log.e("Upload file to server Exception","Exception : "
                        + e.getMessage(),e);  
            }
            dialog.dismiss();       
            return serverResponseCode; 

        } // End else block 
    } 

}

这是PHP脚本：

<?PHP
    $file_path = "uploads/";

    $file_path = $file_path . basename( $_FILES['uploaded_file']['name']);
    if(move_uploaded_file($_FILES['uploaded_file']['tmp_name'],$file_path)) {
        echo "success";
    } else{
        echo "fail";
    }
 ?>

解决方法

您是否验证过用户apache(或者正在运行的用户PHP)是否有权写入$file_path中指定的目录？

将以下代码放在与PHP脚本相同的目录中,然后在Web浏览器中访问它.

<?PHP

$file_path = 'uploads/';

$success = file_put_contents($file_path . "afile","This is a test");

if($success === false) {
    echo "Couldn't write file";
} else {
    echo "Wrote $success bytes";
}

?>

这会给出成功消息还是错误消息？

如果它给出错误消息,请尝试更改uploads目录的所有权.

原文地址：https://www.jb51.cc/android/309861.html