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如何使用AsyncTask方法将文件从android内部存储和信息上传到php mysql服务器？

php android mysql

如何使用AsyncTask方法将文件从android内部存储和信息上传到php mysql服务器？,php,android,mysql,android-asynctask,upload,Php,Android,Mysql,Android Asynctask,Upload,我正在尝试编写一些代码，以便将文件和图片以及有关它们的一些信息一起上载，但我的尝试不起作用，并且总是doInBackground返回空结果 以下是我的尝试： public class RegBookActivity extends Activity { private static final int SELECT_FILE_DIALOG = 1; private static final int SELECT_IMAGE_DIALOG = 302;

我正在尝试编写一些代码，以便将文件和图片以及有关它们的一些信息一起上载，但我的尝试不起作用，并且总是
doInBackground
返回空结果

以下是我的尝试：

public class RegBookActivity extends Activity {

        private static final int SELECT_FILE_DIALOG = 1;
        private static final int SELECT_IMAGE_DIALOG = 302;
        String sourceFileUri, sourceImgUri;
        String[] sp1;
        TextView uptxt, pathfiletxt, pathpictxt, regbookerrtxt;
        Button chfilebtn, chpicbtn, regbookbtn;
        EditText namketabedt, nevisandeedt, hajmedt;
        ImageView upimage;
        Spinner s1;
        int serverResponseCode = 0;

        private Uri getUri() {
            String state = Environment.getExternalStorageState();
            if(!state.equalsIgnoreCase(Environment.MEDIA_MOUNTED))
                return MediaStore.Images.Media.INTERNAL_CONTENT_URI;

            return MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
        }
        @Override
        public void onActivityResult(int requestCode, int resultCode, Intent result) {
            super.onActivityResult(requestCode, resultCode, result);
            if (resultCode == RESULT_OK) {
                if (requestCode == SELECT_FILE_DIALOG) {
                    if (null == result) return;
                    Uri data = result.getData();

                    if(data.getLastPathSegment().endsWith("pdf") || data.getLastPathSegment().endsWith("mp3")){
                        sourceFileUri = data.getPath();
                        SharedPreferences upload = getSharedPreferences("uploadPrefs", 0);
                        SharedPreferences.Editor setedt = upload.edit();
                        setedt.putString("filepath", data.getPath());
                        setedt.commit();
                        pathfiletxt.setText(upload.getString("filepath", "").toString());
                    } else {
                        Toast.makeText(RegBookActivity.this, "نوع فایل انتخابی قابل قبول نیست", Toast.LENGTH_SHORT).show();   
                    }               

            }
                if(requestCode == SELECT_IMAGE_DIALOG){
                    if (null == result) return;
                    try {
                        Uri originalUri = result.getData();


                        String pathsegment[] = originalUri.getLastPathSegment().split(":");
                        String id = pathsegment[0];
                        final String[] imageColumns = { MediaStore.Images.Media.DATA };
                        final String imageOrderBy = null;

                        Uri uri = getUri();
                        Cursor imageCursor = RegBookActivity.this.getContentResolver().query(uri, imageColumns,
                                MediaStore.Images.Media._ID + "=" + id, null, null);

                        if (imageCursor.moveToFirst()) {
                            String value = imageCursor.getString(imageCursor.getColumnIndex(MediaStore.Images.Media.DATA));
                            if(value.contains("jpg") || value.contains("png")){
                                sourceImgUri = value;
                                Bitmap bitmap = BitmapFactory.decodeFile(value);
                                upimage.setImageBitmap(bitmap);
                                SharedPreferences upload = getSharedPreferences("uploadPrefs", 0);
                                SharedPreferences.Editor setedt = upload.edit();
                                setedt.putString("picpath", value);
                                setedt.commit();
                                pathpictxt.setText(upload.getString("picpath", "").toString());
                            } else {
                                Toast.makeText(RegBookActivity.this, "نوع فایل انتخابی قابل قبول نیست", Toast.LENGTH_SHORT).show();   
                            } 
                        }

                    } catch (Exception e) {
                        Toast.makeText(RegBookActivity.this, "نوع فایل انتخابی قابل قبول نیست", Toast.LENGTH_LONG).show();
                    }

                }

            }
        }

        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_reg_book);

            namketabedt = (EditText) findViewById(R.id.editText1);
            nevisandeedt = (EditText) findViewById(R.id.editText2);
            hajmedt = (EditText) findViewById(R.id.editText3);
            chfilebtn = (Button) findViewById(R.id.btn_chosfile);
            chpicbtn = (Button) findViewById(R.id.btn_chospic);
            regbookbtn = (Button) findViewById(R.id.button1);
            uptxt = (TextView) findViewById(R.id.txt_uplodkonande);
            regbookerrtxt = (TextView) findViewById(R.id.txt_regbookerr);
            pathfiletxt = (TextView) findViewById(R.id.txt_pathfile);
            pathpictxt = (TextView) findViewById(R.id.txt_pathpic);
            upimage = (ImageView) findViewById(R.id.imageView1);


            sp1=getResources().getStringArray(R.array.books);
            s1= (Spinner) findViewById(R.id.sp_mozoo);
            ArrayAdapter<String> adapter1 = new ArrayAdapter<String>(this,android.R.layout.simple_spinner_item,sp1);
            s1.setAdapter(adapter1);

            chfilebtn.setOnClickListener(new View.OnClickListener() {

                @Override
                public void onClick(View arg0) {
                    Intent intent = new Intent();
                    intent.setType("audio/*");
                    intent.setAction(Intent.ACTION_GET_CONTENT);
                    startActivityForResult(Intent.createChooser(intent, "فایل مورد نظر خود را انتخاب کنید:"), SELECT_FILE_DIALOG);
                }
            });

            chpicbtn.setOnClickListener(new View.OnClickListener() {

                @Override
                public void onClick(View arg0) {
                    Intent intent = new Intent();
                    intent.setType("image/*");
                    intent.setAction(Intent.ACTION_GET_CONTENT);
                    startActivityForResult(Intent.createChooser(intent, "فایل مورد نظر خود را انتخاب کنید:"), SELECT_IMAGE_DIALOG);
                }

            });

            SharedPreferences settings = getSharedPreferences("userPrefs", 0);
            uptxt.setText(settings.getString("username", "").toString());

            regbookbtn.setOnClickListener(new View.OnClickListener() {

                @Override
                public void onClick(View arg0) {
                    if (( !namketabedt.getText().toString().equals("")) && ( !nevisandeedt.getText().toString().equals("")) 
                        && ( !hajmedt.getText().toString().equals("")) && ( !uptxt.getText().toString().equals("")) 
                        && ( !s1.getSelectedItem().toString().equals("")) 
                        && ( !pathfiletxt.getText().toString().equals("")) && ( !pathpictxt.getText().toString().equals(""))
                            ){
                               new regbook().execute();
                        } else{
                            regbookerrtxt.setText("یکی یا چندتا از فیلدهای موجود خالی است");
                        }
                    }
                });
            }

insertData（）
函数：

public static final String firstURL = "http://192.168.152.1/ketabha/";
    private static final String URL = firstURL + "services.php?op=";

    public static ArrayList<String> insertData(ArrayList<NameValuePair> params, String string) {
        String result = JSONParser.readURL(URL + string, params);
        ArrayList<String> ret = new ArrayList<String>();
        if (result != null) {
            try {
                Log.i("LOG", result);
                JSONArray errors = new JSONArray(result);
                for (int i = 0; i < errors.length(); i++) {
                    ret.add(errors.getString(i));
                }
            }
            catch (JSONException e) {
                e.printStackTrace();
            }
        }
        return ret;
    }

public静态最终字符串firstURL=”http://192.168.152.1/ketabha/";
私有静态最终字符串URL=firstURL+“services.php？op=”；
公共静态ArrayList insertData（ArrayList参数，字符串）{
String result=JSONParser.readURL（URL+String，params）；
ArrayList ret=新的ArrayList（）；
如果（结果！=null）{
试一试{
Log.i（“Log”，结果）；
JSONArray错误=新JSONArray（结果）；
对于（int i=0；i
有没有人能帮我解决这个问题，帮助我更好地理解

如果res为null并由doInBackground返回，那么在onPostExecute中，If（res.isEmpty（））语句上会有一个NullPointerException。您现在知道了吗？upload（）没有读取服务器的响应。insertData（）在做什么？所以它返回null。insertData对POST结果一无所知。@greenapps否否我的意思是res为空。doInBackground返回总是空的。我用insertData（）函数编辑了我的问题。看一看。谢谢。请发布完整的insertData函数。我们还想查看使用过的参数。抱歉，我现在看到它已完成。 
function insertBook(){
    $con = db_connect();
    $response = array();

        $namketab = $_REQUEST['namketab'];
        $nevisande = $_REQUEST['nevisande'];
        $mozoo = $_REQUEST['mozoo'];
        $uplodkonande = $_REQUEST['uplodkonande'];
        $hajm = $_REQUEST['hajm'];

        $tasvir = "images/";
        $tasvir = $tasvir . basename( $_FILES['tasvir']['name']);
        if(move_uploaded_file($_FILES['tasvir']['tmp_name'], $tasvir)) {
        empty($response);
      }else{
        $response[] = "book pic failed to store";
      }
      $tasvir = str_replace(' ', '%20', $tasvir);

        $fileketab = "uploads/";
        $fileketab = $fileketab . basename( $_FILES['fileketab']['name']);
        if(move_uploaded_file($_FILES['fileketab']['tmp_name'], $fileketab)) {
        empty($response);
      }else{
        $response[] = "book file failed to store";
      }
       $fileketab = str_replace(' ', '%20', $fileketab);

    if(empty($response)){
        mysqli_query($con, "INSERT INTO tbl_books (namketab, nevisande, mozoo, uplodkonande, tasvir, fileketab, hajm, status) 
                            VALUES ('$namketab', '$nevisande', '$mozoo', '$uplodkonande', '$tasvir', '$fileketab', '$hajm', 'uploaded')");
        $response[] = "book stored successfully";
    }

    echo json_encode($response);
    mysqli_close($con);
}

public static final String firstURL = "http://192.168.152.1/ketabha/";
    private static final String URL = firstURL + "services.php?op=";

    public static ArrayList<String> insertData(ArrayList<NameValuePair> params, String string) {
        String result = JSONParser.readURL(URL + string, params);
        ArrayList<String> ret = new ArrayList<String>();
        if (result != null) {
            try {
                Log.i("LOG", result);
                JSONArray errors = new JSONArray(result);
                for (int i = 0; i < errors.length(); i++) {
                    ret.add(errors.getString(i));
                }
            }
            catch (JSONException e) {
                e.printStackTrace();
            }
        }
        return ret;
    }