php中未定義的索引圖像

Question

首先，讓我描述一下我在這裏面臨的問題。

我想存儲從android到MySQL的圖像路徑，並將圖像存儲到PhotoUpload目錄中。

點擊提交按鈕後，所有listItem將被保存到MySQL。

活動A

public void uploadImageAndText(ArrayList<ImageAndText> listItems, final String id) { 
      JSONArray jsonArray = new JSONArray(); 
      try { 
       for (ImageAndText i : listItems) { 
        JSONObject object = new JSONObject(); 
        String type = i.getType(); 
        String[] Type = type.split(":"); 
        object.put("type", Type[1]); 
        Toast.makeText(getApplicationContext(), Type[1], Toast.LENGTH_LONG).show(); 
        String amount = i.getAmount(); 
        String[] Amount = amount.split(":"); 
        object.put("amount", Amount[1]); 
        String description = i.getDescription(); 
        String[] Description = description.split(":"); 
        object.put("description", Description[1]); 
        Bitmap uploadImage = i.getImage(); 
        String image = getStringImage(uploadImage); 
        object.put("image", image); 
        object.put("ts_id", id); 
        jsonArray.put(object); 
       } 
      } catch (JSONException e) { 
       e.printStackTrace(); 
      } 

      AddStaff ru = new AddStaff(jsonArray); 
      ru.execute(); 

     } 

     class AddStaff extends AsyncTask<String, Void, String> { 
      ProgressDialog loading; 

      JSONArray jsonArray; 

      AddStaff(JSONArray jsonArray) { 
       this.jsonArray = jsonArray; 
      } 

      @Override 
      protected void onPreExecute() { 
       super.onPreExecute(); 
       loading = ProgressDialog.show(AddClaims.this, "Please Wait", null, true, true); 
      } 

      @Override 
      protected String doInBackground(String... params) { 
       HashMap<String, String> data = new HashMap<String, String>(); 
       data.put("listItems", jsonArray.toString()); 
       RequestHandler rh = new RequestHandler(); 
       String result = rh.sendPostRequest(Configs.STAFF_BENEFIT, data); 
       return result; 
      } 

      @Override 
      protected void onPostExecute(String s) { 
       super.onPostExecute(s); 
       loading.dismiss(); 
       Toast.makeText(getApplicationContext(), s, Toast.LENGTH_LONG).show(); 
      } 
     } 


     public String getStringImage(Bitmap bmp) { 
      ByteArrayOutputStream baos = new ByteArrayOutputStream(); 
      bmp.compress(Bitmap.CompressFormat.JPEG, 100, baos); 
      byte[] imageBytes = baos.toByteArray(); 
      String encodedImage = Base64.encodeToString(imageBytes, Base64.DEFAULT); 
      return encodedImage; 
     } 
    } 

PHP

<?php 
    if($_SERVER['REQUEST_METHOD']=='POST'){ 

     if(!empty($_POST['listItems'])){ 

      $mysqli = new mysqli("127.0.0.1:3307", "root", "", "androiddb"); 
      if($mysqli->connect_errno) echo "Failed to connect to MySQL"; 

      $image = $_POST['image']; 

      $listItems = json_decode($_POST['listItems'], true); 

      $sql="SELECT id FROM staff_benefit ORDER BY id ASC"; 

      $id=0; 

      $res=$mysqli->query($sql); 
      while($rs=$res->fetch_object()) $id=$rs->id; 

      $path="$id.png"; 
      $actualpath="http://192.168.107.115:80/Android/CRUD/PhotoUpload/$path"; 

      $sql="INSERT INTO `staff_benefit` (`type`, `amount`, `description`, `image`, `ts_id`) VALUES (?, ?, ?, ?, ?)"; 
      $stmt=$mysqli->prepare($sql); 

      $pathelements=array(realpath($_SERVER['DOCUMENT_ROOT']), 'CRUD', 'PhotoUpload', ''); 
      $savepath = realpath(implode(DIRECTORY_SEPARATOR, $pathelements)) . "{$id}.png"; 

      $bytes=file_put_contents($savepath, base64_decode($image)); 
      if(!$bytes){ 
       echo 'Error saving image'; 
      } 

      if ($stmt && $bytes) { 
       foreach($listItems as $item){ 

        $stmt->bind_param('sssss', $item['type'], $item['amount'], $item['description'], $actualpath, $item['ts_id']); 
        $res=$stmt->execute(); 

        if(!$res) echo 'Query failed with code: '.$stmt->errno; 
       } 
      } 
      $mysqli->close(); 
     } 
    } 
?> 

這是我所期待的

錯誤

未定義指數：在C圖像：......錯誤保存圖像

這是行10 $image = $_POST['image'];

我知道我獲取此錯誤消息是因爲我只發佈listItem但沒有圖像。 我的問題是如何打破listItem中的圖像，然後解碼它？

是否有人可以幫助我瞭解如何ArrayList的存儲（含圖片）到MySQL？多謝

我遵循這個tutorial，但問題是，他存儲的單個文件，ArrayList不是！

Answer 1

由於您在此$image = $_POST['image'];中未定義，爲什麼您不在doInBackground中添加image？

試試這個

@Override 
      protected String doInBackground(String... params) { 
       HashMap<String, String> data = new HashMap<String, String>(); 
       data.put("listItems", jsonArray.toString()); 
       data.put(Configs.KEY_IMAGE,imagess); 
       RequestHandler rh = new RequestHandler(); 
       String result = rh.sendPostRequest(Configs.STAFF_BENEFIT, data); 
       return result; 
      }