Android应用程序发送图像到MySQL [英] Android application to send image to MySQL

问题描述

我有它发送一个图像到我的数据库作为一个Android应用;

 公共类NewProductActivity延伸活动{

//进度对话框
私人ProgressDialog pDialog;
公共字符串image_str;
JSONParser jsonParser =新JSONParser（）;
的EditText inputName;
的EditText inputPrice;
的EditText inputDesc;
的EditText inputImg;
按钮btnTakePhoto;
ImageView的imgTakenPhoto;
私有静态最终诠释CAM_REQUREST = 1313;
// URL，创建新产品
私有静态字符串url_create_product =htt​​p://buiud.com/android_connect/create_product.php;

// JSON节点名称
私有静态最后弦乐TAG_SUCCESS =成功;

@覆盖
公共无效的onCreate（包savedInstanceState）{
    super.onCreate（savedInstanceState）;
    的setContentView（R.layout.add_product）;

    //编辑文本
    inputName =（EditText上）findViewById（R.id.inputName）;
    inputPrice =（EditText上）findViewById（R.id.inputPrice）;
    inputDesc =（EditText上）findViewById（R.id.inputDesc）;
    // inputImg =（EditText上）findViewById（R.id.imageView1）;

    点阵位图= BitmapFactory.de codeResource（getResources（），R.drawable.ic_launcher）;
    ByteArrayOutputStream流=新ByteArrayOutputStream（）;
    bitmap.com preSS（Bitmap.Com pressFormat.PNG，90，流）; // COM preSS到你想要的格式。
    byte []的byte_arr = stream.toByteArray（）;
    image_str = Base64.en codeToString（byte_arr，Base64.DEFAULT）;


    //创建按钮
    按钮btnCreateProduct =（按钮）findViewById（R.id.btnCreateProduct）;

    //按钮点击事件
    btnCreateProduct.setOnClickListener（新View.OnClickListener（）{

        @覆盖
        公共无效的onClick（视图查看）{
            //创建在后台线程的新产品
            新CreateNewProduct（）执行（）。
        }
    }）;
    btnTakePhoto =（按钮）findViewById（R.id.button1）;
    imgTakenPhoto =（ImageView的）findViewById（R.id.imageView1）;

    btnTakePhoto.setOnClickListener（新btnTakePhotoClicker（））;

}
@覆盖
保护无效onActivityResult（INT申请code，INT结果code，意图数据）{
    // TODO自动生成方法存根
    super.onActivityResult（要求code，因此code，数据）;

      如果（要求code == CAM_REQUREST）{
          。位图的缩略图=（位图）data.getExtras（）获得（数据）;
          imgTakenPhoto.setImageBitmap（缩略图）;
      }
}

类btnTakePhotoClicker实现Button.OnClickListener
{
    @覆盖
    公共无效的onClick（视图v）{
        // TODO自动生成方法存根

        意图cameraIntent =新的意图（android.provider.MediaStore.ACTION_IM​​AGE_CAPTURE）;
        startActivityForResult（cameraIntent，CAM_REQUREST）;
    }
}
/ **
 *背景异步任务来创建新产品
 * * /
类CreateNewProduct扩展的AsyncTask＆LT;字符串，字符串，字符串＆GT; {

    / **
     *在启动后台线程显示进度对话框
     * * /
    @覆盖
    在preExecute保护无效（）{
        super.on preExecute（）;
        pDialog =新ProgressDialog（NewProductActivity.this）;
        pDialog.setMessage（创建产品..）;
        pDialog.setIndeterminate（假）;
        pDialog.setCancelable（真正的）;
        pDialog.show（）;
    }

    / **
     *创建产品
     * * /
    保护字符串doInBackground（字符串参数... args）{
        字符串名称= inputName.getText（）的toString（）。
        串价格= inputPrice.getText（）的toString（）。
        。字符串描述= inputDesc.getText（）的toString（）;
        //字符串image_str = inputImg.getText（）的toString（）。

        //大厦参数
        名单＆LT;的NameValuePair＆GT; PARAMS =新的ArrayList＆LT;的NameValuePair＆GT;（）;
        params.add（新BasicNameValuePair（姓名，名字））;
        params.add（新BasicNameValuePair（价格，价格））;
        params.add（新BasicNameValuePair（说明，说明））;
        params.add（新BasicNameValuePair（IMG，image_str））;
        //params.add(new BasicNameValuePair（图像，图像））;

        //获取JSON对象
        //注意，创造产品的URL接受POST方法
        JSONObject的JSON = jsonParser.makeHtt prequest（url_create_product，
                POST，则params）;

        //检查日志猫来回响应
        Log.d（创建回应，json.toString（））;

        //检查成功标签
        尝试 {
            INT成功= json.getInt（TAG_SUCCESS）;

            如果（成功== 1）{
                //创建成功产品
                意图I =新的意图（getApplicationContext（），AllProductsActivity.class）;
                startActivity（ⅰ）;

                //关闭此屏幕
                完（）;
            } 其他 {
                //创建失败产品
            }
        }赶上（JSONException E）{
            e.printStackTrace（）;
        }

        返回null;
    }

    / **
     *在完成后台任务之后关闭该进度对话框
     * ** /
    保护无效onPostExecute（字符串file_url）{
        //驳回一旦完成对话
        pDialog.dismiss（）;
    }

}
}
 

甚至认为，我希望它出现在数据库中的.bin，我怎样才能改变这种状况上的图像被.png格式，我看了一下打字的东西，当应用程序被调用create.php，但没有雪茄。我甚至无法显示的.bin作为HTML页面上的图像。

解决方案

 ＆LT; PHP
    $ NAME = $ _ POST ['形象'];
     $进入= base64_de code（$名）;
     $图像= imagecreatefromstring（$输入）;
     $目录=目录名（__ FILE __）DIRECTORY_SEPARATOR图像/DIRECTORY_SEPARATOR指数$标题为JPEG。。。。
     标题（内容类型：image / JPEG'）;
     $ imagetojpg = imagejpeg（$形象，$目录）;
     imagedestroy（$图像）;
     ReadFile的（$目录）;
     出口 （）;
    ？＆GT;
 

这应该工作fine.image是包含的base64 EN codeD字符串的变量。

I have an android application which sends an image to my database as;

public class NewProductActivity extends Activity {

// Progress Dialog
private ProgressDialog pDialog;
public String image_str;
JSONParser jsonParser = new JSONParser();
EditText inputName;
EditText inputPrice;
EditText inputDesc;
EditText inputImg;
Button btnTakePhoto;
ImageView imgTakenPhoto;
private static final int CAM_REQUREST = 1313;
// url to create new product
private static String url_create_product = "http://buiud.com/android_connect/create_product.php";

// JSON Node names
private static final String TAG_SUCCESS = "success";

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.add_product);

    // Edit Text
    inputName = (EditText) findViewById(R.id.inputName);
    inputPrice = (EditText) findViewById(R.id.inputPrice);
    inputDesc = (EditText) findViewById(R.id.inputDesc);
    //inputImg = (EditText) findViewById(R.id.imageView1);

    Bitmap bitmap = BitmapFactory.decodeResource(getResources(),R.drawable.ic_launcher);          
    ByteArrayOutputStream stream = new ByteArrayOutputStream();
    bitmap.compress(Bitmap.CompressFormat.PNG, 90, stream); //compress to which format you want.
    byte[] byte_arr = stream.toByteArray();
    image_str = Base64.encodeToString(byte_arr, Base64.DEFAULT);


    // Create button
    Button btnCreateProduct = (Button) findViewById(R.id.btnCreateProduct);

    // button click event
    btnCreateProduct.setOnClickListener(new View.OnClickListener() {

        @Override
        public void onClick(View view) {
            // creating new product in background thread
            new CreateNewProduct().execute();
        }
    });
    btnTakePhoto = (Button) findViewById(R.id.button1);
    imgTakenPhoto = (ImageView) findViewById(R.id.imageView1);

    btnTakePhoto.setOnClickListener(new btnTakePhotoClicker());

}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    // TODO Auto-generated method stub
    super.onActivityResult(requestCode, resultCode, data);

      if (requestCode == CAM_REQUREST) {
          Bitmap thumbnail = (Bitmap) data.getExtras().get("data");
          imgTakenPhoto.setImageBitmap(thumbnail);
      }
}

class btnTakePhotoClicker implements Button.OnClickListener
{
    @Override
    public void onClick(View v) {
        // TODO Auto-generated method stub

        Intent cameraIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
        startActivityForResult(cameraIntent, CAM_REQUREST);
    }
}
/**
 * Background Async Task to Create new product
 * */
class CreateNewProduct extends AsyncTask<String, String, String> {

    /**
     * Before starting background thread Show Progress Dialog
     * */
    @Override
    protected void onPreExecute() {
        super.onPreExecute();
        pDialog = new ProgressDialog(NewProductActivity.this);
        pDialog.setMessage("Creating Product..");
        pDialog.setIndeterminate(false);
        pDialog.setCancelable(true);
        pDialog.show();
    }

    /**
     * Creating product
     * */
    protected String doInBackground(String... args) {
        String name = inputName.getText().toString();
        String price = inputPrice.getText().toString();
        String description = inputDesc.getText().toString();
        //String image_str = inputImg.getText().toString();

        // Building Parameters
        List<NameValuePair> params = new ArrayList<NameValuePair>();
        params.add(new BasicNameValuePair("name", name));
        params.add(new BasicNameValuePair("price", price));
        params.add(new BasicNameValuePair("description", description));
        params.add(new BasicNameValuePair("img",image_str));
        //params.add(new BasicNameValuePair("image", image));

        // getting JSON Object
        // Note that create product url accepts POST method
        JSONObject json = jsonParser.makeHttpRequest(url_create_product,
                "POST", params);

        // check log cat fro response
        Log.d("Create Response", json.toString());

        // check for success tag
        try {
            int success = json.getInt(TAG_SUCCESS);

            if (success == 1) {
                // successfully created product
                Intent i = new Intent(getApplicationContext(), AllProductsActivity.class);
                startActivity(i);

                // closing this screen
                finish();
            } else {
                // failed to create product
            }
        } catch (JSONException e) {
            e.printStackTrace();
        }

        return null;
    }

    /**
     * After completing background task Dismiss the progress dialog
     * **/
    protected void onPostExecute(String file_url) {
        // dismiss the dialog once done
        pDialog.dismiss();
    }

}
}

Even thought I want the image to be .png it appears on the database as .bin, how can I change that, I have read about typing something when the application was calling the create.php but no cigar. I can't even display the .bin as an image on the HTML page.

解决方案

  <?php 
    $name = $_POST['image'];
     $entry = base64_decode($name);
     $image = imagecreatefromstring($entry);
     $directory = dirname(__FILE__).DIRECTORY_SEPARATOR."images/".DIRECTORY_SEPARATOR."index".$title.".jpeg";
     header ( 'Content-type:image/jpeg' );
     $imagetojpg=imagejpeg($image, $directory); 
     imagedestroy($image );      
     readfile ($directory);  
     exit ();
    ?>

This should work fine.image is a variable which contain base64 encoded string.

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