问题：
如何将捕获的图像导入应用程序并希望上载到服务器？
臧友樵
我试着用相机拍摄一幅图像，并在我的应用程序中将其设置为个人资料图片。
相机捕捉图像，但图片没有设置在配置文件中，仍然是空白，并希望将该图片上传到我的服务器。
当通过DataInputStream读取图片时，它会说，“DataInputStream类型中的readLine（）方法已被弃用”。
帮我解决这个问题。
以下是我的代码：
public void settings(){
AlertDialog.Builder alertDialog2 = new AlertDialog.Builder(SignUp.this);
alertDialog2.setTitle("");
alertDialog2.setMessage("Please select an image..");
alertDialog2.setIcon(R.drawable.act_camera);
alertDialog2.setPositiveButton("CAMERA.",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
condition="from_camera";
pd = ProgressDialog.show(SignUp.this, "", "Please wait...", true);
Intent cameraIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(cameraIntent, CAM_REQUREST);
}
});
alertDialog2.setNegativeButton("GALLERY.",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
condition="from_gallery";
pd = ProgressDialog.show(SignUp.this, "", "Please wait...", true);
Intent i = new Intent(Intent.ACTION_PICK,android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
startActivityForResult(i, RESULT_LOAD_IMAGE);
}
});
alertDialog2.show();
}
@JavascriptInterface
public void showCustomAlert() {
// TODO Auto-generated method stub
Context context = getApplicationContext();
// Create layout inflator object to inflate toast.xml file
LayoutInflater inflater = getLayoutInflater();
// Call toast.xml file for toast layout
View toastRoot = inflater.inflate(R.layout.toast, null);
Toast toast = new Toast(context);
// Set layout to toast
toast.setView(toastRoot);
toast.setGravity(Gravity.CENTER_HORIZONTAL | Gravity.CENTER_VERTICAL,
0, 0);
toast.setDuration(Toast.LENGTH_LONG);
toast.show();
}
protected void onActivityResult(int requestCode, int resultCode, Intent data)
{
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == CAM_REQUREST)
{
bitmap_profile_image = (Bitmap) data.getExtras().get("data");
imagepath = ImageWrite(bitmap_profile_image);
pd.dismiss();
}
else if (requestCode == RESULT_LOAD_IMAGE && resultCode == RESULT_OK && null != data)
{
Uri selectedImage = data.getData();
String[] filePathColumn = { MediaStore.Images.Media.DATA };
Cursor cursor = getContentResolver().query(selectedImage,
filePathColumn, null, null, null);
cursor.moveToFirst();
int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
String picturePath = cursor.getString(columnIndex);
Bitmap thumbnail = (BitmapFactory.decodeFile(picturePath));
cursor.close();
john.setImageBitmap(thumbnail);
System.out.println("Step--------->1");
pd1 = ProgressDialog.show(SignUp.this, "", "Please wait...", true);
System.out.println("Step--------->1");
imagepath = ImageWrite(thumbnail);
pd1.dismiss();
pd.dismiss();
Log.w("path of image from gallery......*******.....", picturePath+"");
}
else{
}
Imageuploading();
}
public String ImageWrite(Bitmap bitmap1)
{
//pd = ProgressDialog.show(context,null, "Please wait...",true);
String extStorageDirectory = Environment.getExternalStorageDirectory().toString();
OutputStream outStream = null;
File file = new File(extStorageDirectory, "slectimage.PNG");
try
{
outStream = new FileOutputStream(file);
bitmap1.compress(Bitmap.CompressFormat.PNG, 100, outStream);
outStream.flush();
outStream.close();
pd.dismiss();
}
catch (FileNotFoundException e)
{
e.printStackTrace();
pd.dismiss();
} catch (IOException e)
{
e.printStackTrace();
pd.dismiss();
}
String imageInSD = "/sdcard/slectimage.PNG";
pd.dismiss();
return imageInSD;
}
protected void Imageuploading() {
// TODO Auto-generated method stub
pd1 = ProgressDialog.show(this,null, "Please wait...",true);
try{
Log.e("SANGUUU", "dfdf");
HttpURLConnection connection = null;
DataOutputStream outputStream = null;
String pathToOurFile = (String) imagepath;
System.out.println("patho our file"+pathToOurFile);
//String urlServer = "http://demo.cogzideltemplates.com/client/snapchat-clone/index.php/user/image_upload";
String urlServer = "http://demo.cogzidel.com/sedio/mobile/image_upload";
String lineEnd = "\r\n";
String twoHyphens = "--";
String boundary = "*****";
int bytesRead, bytesAvailable, bufferSize;
byte[] buffer;
int maxBufferSize = 1*1024*1024;
FileInputStream fileInputStream = new FileInputStream(new File(pathToOurFile));
URL url = new URL(urlServer);
connection = (HttpURLConnection) url.openConnection();
// Allow Inputs & Outputs
connection.setDoInput(true);
connection.setDoOutput(true);
connection.setUseCaches(false);
// Enable POST method
connection.setRequestMethod("POST");
connection.setRequestProperty("Connection", "Keep-Alive");
connection.setRequestProperty("Content-Type", "multipart/form-data;boundary="+boundary);
outputStream = new DataOutputStream( connection.getOutputStream() );
outputStream.writeBytes(twoHyphens + boundary + lineEnd);
outputStream.writeBytes("Content-Disposition: form-data; name=\"uploadedfile\";filename=\"" + pathToOurFile +"\"" + lineEnd);
outputStream.writeBytes(lineEnd);
bytesAvailable = fileInputStream.available();
bufferSize = Math.min(bytesAvailable, maxBufferSize);
buffer = new byte[bufferSize];
// Read file
bytesRead = fileInputStream.read(buffer, 0, bufferSize);
while (bytesRead > 0)
{
System.out.println("test");
outputStream.write(buffer, 0, bufferSize);
bytesAvailable = fileInputStream.available();
bufferSize = Math.min(bytesAvailable, maxBufferSize);
bytesRead = fileInputStream.read(buffer, 0, bufferSize);
}
outputStream.writeBytes(lineEnd);
outputStream.writeBytes(twoHyphens + boundary + twoHyphens + lineEnd);
connection.getResponseCode();
String serverResponseMessage = connection.getResponseMessage();
URL serverResponseMessage1 = connection.getURL();
System.out.println("url value"+serverResponseMessage1);
connection.getResponseMessage();
// Toast.makeText(getApplicationContext(), serverResponseMessage, Toast.LENGTH_LONG).show();
System.out.println("image"+serverResponseMessage);
int len=connection.getContentLength();
System.out.println("Length of url--->1"+len);
fileInputStream.close();
outputStream.flush();
outputStream.close();
DataInputStream inputStream1 = null;
inputStream1 = new DataInputStream (connection.getInputStream());
String str="";
String Str1_imageurl="";
while (( str = inputStream1.readLine()) != null) // here getting deprecated error
{
Log.e("Debug","Server Response "+str);
Str1_imageurl = str;
Log.e("Debug","Server Response String imageurl"+str);
}
inputStream1.close();
System.out.println("image url"+Str1_imageurl);
// Toast.makeText(getApplicationContext(), Str1_imageurl, Toast.LENGTH_LONG).show();
pd1.dismiss();
stry=Str1_imageurl.trim();
}
catch(Exception e){
e.printStackTrace();
}
}
//create helping method cropCapturedImage(Uri picUri)
public void cropCapturedImage(Uri picUri){
//call the standard crop action intent
Intent cropIntent = new Intent("com.android.camera.action.CROP");
//indicate image type and Uri of image
cropIntent.setDataAndType(picUri, "image/*");
//set crop properties
cropIntent.putExtra("crop", "true");
//indicate aspect of desired crop
cropIntent.putExtra("aspectX", 1);
cropIntent.putExtra("aspectY", 1);
//indicate output X and Y
cropIntent.putExtra("outputX", 256);
cropIntent.putExtra("outputY", 256);
//retrieve data on return
cropIntent.putExtra("return-data", true);
//start the activity - we handle returning in onActivityResult
startActivityForResult(cropIntent, 2);
}
共有2个答案
通京
如果您能够获取图像的路径，则尝试从该路径获取图像。还有一种方法可以在服务器上上载图像。您可以使用Base64编码将图像转换为Sting，并通过JSON将该字符串发送到服务器。
颜河
点击按钮打开相机
// Util.TEMP_PHOTO_FILE_NAME is String file name ;
String state = Environment.getExternalStorageState();
if (Environment.MEDIA_MOUNTED.equals(state)) {
mFileTemp = new File(Environment
.getExternalStorageDirectory(),
Util.TEMP_PHOTO_FILE_NAME);
} else {
mFileTemp = new File(getApplicationContext().getFilesDir(),
Util.TEMP_PHOTO_FILE_NAME);
}
intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
try {
Uri mImageCaptureUri = null;
// String state = Environment.getExternalStorageState();
if (mFileTemp == null) {
System.out.println("no file found");
} else {
System.out.println("file found");
}
if (Environment.MEDIA_MOUNTED.equals(state)) {
mImageCaptureUri = Uri.fromFile(mFileTemp);
} else {
mImageCaptureUri = InternalStorageContentProvider.CONTENT_URI;
}
intent.putExtra(android.provider.MediaStore.EXTRA_OUTPUT,
mImageCaptureUri);
intent.putExtra("return-data", true);
startActivityForResult(intent, SELECT_CAMERA_IMAGE_REQUEST);
/*
* Intent cameraIntent = new
* Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
* startActivityForResult(cameraIntent,
* SELECT_CAMERA_IMAGE_REQUEST);
*/
} catch (ActivityNotFoundException e) {
Log.d("Tag", "cannot take picture", e);
}
私人文件picfile
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
if (resultCode == Activity.RESULT_OK) {
if (requestCode == SELECT_CAMERA_IMAGE_REQUEST
&& resultCode == Activity.RESULT_OK) {
picfile = mFileTemp;
postFlagFileCheck = 1;
bitmap_postImage = BitmapFactory.decodeFile(picfile
.getAbsolutePath());
setImagePreview(bitmap_postImage);
}
}
正在将该映像文件发送到服务器
HttpClient httpclient;
httpclient = HttpClientSingalTon.getHttpClienttest();
HttpPost httpPostRequest = new HttpPost(URL);
// Try This
httpclient.getParams().setParameter(CoreProtocolPNames.PROTOCOL_VERSION, HttpVersion.HTTP_1_1);
MultipartEntity mpEntity = new MultipartEntity();
ContentBody cbFile = new FileBody(yourimagefile, "image/jpeg");
mpEntity.addPart("file", cbFile);
httpPostRequest.setEntity(mpEntity);
HttpResponse response = (HttpResponse) httpclient.execute(httpPostRequest);
你必须使用这些LIBhttp://www.java2s.com/Code/Jar/h/Downloadhttpmime401jar.htm
http://www.java2s.com/Code/Jar/a/Downloadapachemime4j06jar.htm
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