タイトルの通り, 自前のサーバ(node.js)にAndroidの端末からPOSTする方法についてです. Android5.0.2の実機でデバッグしています.
以下にコードを載せますが,errorはMainActivity.javaの中で ERROR!!とコメントアウトしてる部分に java.io.FileNotFoundException: /storage/emulated/0/(ファイル名).jpg: open failed: EACCES (Permission denied)
と出ます.
file = new File(mImagePath)
の手前のImageViewには画像がセットされるので, 画像までのPathは間違っていないと思います.
よろしくお願いします.
MainActivity.java
java
1protected void onActivityResult(int requestCode, int resultCode, Intent data){ 2 if(data == null){return;} 3 switch(requestCode){ 4 case UPLOAD_PIC_CODE: 5 mImagePath = getPath(data.getData());// get image path 6 mImageView.setImageURI(data.getData());// show the image 7 file = new File(mImagePath); 8 9 new AsyncTask<Void, Void, String>(){ 10 @Override 11 protected String doInBackground(Void... ImagePath) { 12 String result = null; 13 14 RequestBody requestBody = new MultipartBody.Builder() 15 .setType(MultipartBody.FORM) 16 .addFormDataPart("upName", file.getName(), RequestBody.create(MediaType.parse("image/*"), file)) 17 .build(); 18 19 Request request = new Request.Builder()// ERROR!! 20 .url(POST_URL) 21 .post(requestBody) 22 .build(); 23 24 try{ 25 okhttp3.Response response = client.newCall(request).execute(); 26 result = response.body().string(); 27 } catch (IOException e) { 28 e.printStackTrace(); 29 } 30 31 return result; 32 } 33 }.execute(); 34 break; 35 }// ERROR!! 36 } 37 38 39 public String getPath(Uri uri){ 40 String[] projection = {MediaStore.Images.Media.DATA}; 41 CursorLoader loader = new CursorLoader(getApplicationContext(), uri, projection, null, null, null); 42 Cursor cursor = loader.loadInBackground(); 43 int column_index = cursor.getColumnIndex(MediaStore.Images.Media.DATA); 44 cursor.moveToFirst(); 45 return cursor.getString(column_index); 46 } 47 48 @Override 49 public void onClick(View view) { 50 switch (view.getId()) { 51 case R.id.upload_button: 52 Intent intent = new Intent(Intent.ACTION_GET_CONTENT); 53 intent.setType("image/*"); 54 startActivityForResult(intent, UPLOAD_PIC_CODE); 55 break; 56 } 57 }
javascript
1(function() { 2 var express = require('express'); 3 var app = express(); 4 var mime = require('mime'); 5 var crypto = require('crypto'); 6 var multer = require('multer'); 7 8 // option 9 var storage = multer.diskStorage({ 10 destination: function(req, file, cb) { 11 cb(null, './uploads'); // absolute path 12 }, 13 filename: function(req, file, cb) { 14 var revName = file.originalname; // get original name 15 var imageType = file.mimetype; // get image type 16 var imageName = revName.split('.');// split . 17 console.log('split after is ' + imageName[0]); 18 console.log('split after is ' + imageName[1]); 19 crypto.pseudoRandomBytes(16, function(err, raw) { 20 // cb(null, raw.toString('hex') + imageName[0] + '.' + mime.extension(file.mimetype)); 21 cb(null, imageName[0] + '.' + mime.extension(file.mimetype)); 22 }); 23 } 24 }); 25 26 // set disk storage 27 var upload = multer({ 28 storage: storage 29 }); 30 31 app.post('/upload', upload.single('upName'), function(req, res) { 32 // call option 33 console.log('-----post function------'); 34 console.log(`originalname: ${req.file.originalname}`); 35 console.log(`path: ${req.file.path}`); 36 //res.send(JSON.stringify(req.file)); 37 res.json({'response': 'Get!'}); 38 //console.log('-----req-----'); 39 console.log(req.file); 40 }); 41 42 app.get('/', function(req,res){ 43 res.end('node file upload'); 44 }); 45 46 47 app.use('/', express.static('.')); 48 app.listen(3000); 49 console.log('http://localhost:3000 is generated.'); 50})();
AndroidManifest.xml
xml
1<uses-permission android:name="android.permission.INTERNET"/> 2 <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" /> 3 <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" /> 4 5 <application 6 android:allowBackup="true" 7 android:icon="@mipmap/ic_launcher" 8 android:label="@string/app_name" 9 android:supportsRtl="true" 10 android:theme="@style/AppTheme"> 11 <activity android:name=".MainActivity"> 12 <intent-filter> 13 <action android:name="android.intent.action.MAIN" /> 14 15 <category android:name="android.intent.category.LAUNCHER" /> 16 </intent-filter> 17 </activity> 18 </application>
回答2件
あなたの回答
tips
プレビュー