下面是代码，但是当我想将这些信息插入到服务器中时，它给了我java.io.FileNotFoundException这个错误，那么怎样做可以让任何正文显示我的解决方案
public class AddItems extends Activity {
ImageView iv;
EditText et1, et2;
Button b1;
Bitmap bmp;
String image1String, image2String, image3String;
String imgPath, fileName;
String encodedString;
/**
* ATTENTION: This was auto-generated to implement the App Indexing API.
* See https://g.co/AppIndexing/AndroidStudio for more information.
*/
private GoogleApiClient client;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_add_items);
iv = (ImageView) findViewById(R.id.imageget);
et1 = (EditText) findViewById(R.id.imageid);
et2 = (EditText) findViewById(R.id.imagedes);
b1 = (Button) findViewById(R.id.insert);
b1.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
new Thread(new Runnable() {
@Override
public void run() {
InputStream is;
BitmapFactory.Options bfo;
Bitmap bitmapOrg;
ByteArrayOutputStream bao ;
bfo = new BitmapFactory.Options();
bfo.inSampleSize = 2;
//bitmapOrg = BitmapFactory.decodeFile(Environment.getExternalStorageDirectory() + "/" + customImage, bfo);
bao = new ByteArrayOutputStream();
bmp.compress(Bitmap.CompressFormat.JPEG, 90, bao);
byte [] ba = bao.toByteArray();
image1String = Base64.encodeToString(ba,Base64.DEFAULT);
HashMap<String, String> prams = new HashMap<String, String>();
prams.put("ImageID", et1.getText().toString());
prams.put("ImageDesc", et2.getText().toString());
prams.put("ImagePath", image1String);
Network network = new Network("insertimage.php", prams);
String RecivedString = null;
try {
RecivedString = network.ToRecieveDataFromWeb();
Jsonparsing jasonparsing = new Jsonparsing(RecivedString);
HashMap<String, String> hashMap = jasonparsing.ParseJsonObject(RecivedString);
if (hashMap.get("Success").toString().equals("1")) {
ShowOnUni("Good");
} else {
ShowOnUni(hashMap.get("Message") + "");
}
} catch (IOException e) {
e.printStackTrace();
}
}
}).start();
}
});
enter code here
图像视图，用于保存图库或相机中的图像
iv.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
selectImage();
}
});
GoogleApiClient.Builder(this).addApi(AppIndex.API).build();
}
private void ShowOnUni(final String error1) {
runOnUiThread(new Runnable() {
@Override
public void run() {
Toast.makeText(getApplicationContext(), error1 + "", Toast.LENGTH_LONG).show();
}
});
}
private void selectImage() {
final CharSequence[] items = {"Take Photo", "Choose from Library", "Cancel"};
AlertDialog.Builder builder = new AlertDialog.Builder(AddItems.this);
builder.setTitle("Add Photo!");
builder.setItems(items, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int item) {
if (items[item].equals("Take Photo")) {
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(intent, 1);
} else if (items[item].equals("Choose from Library")) {
Intent intent = new Intent(
Intent.ACTION_PICK,
MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
intent.setType("image/*");
startActivityForResult(
Intent.createChooser(intent, "Select File"),
2);
} else if (items[item].equals("Cancel")) {
dialog.dismiss();
}
}
});
builder.show();
}
this is activity for result is this section the image from gallery is set into the imageview and is compressed
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
// TODO Auto-generated method stub
super.onActivityResult(requestCode, resultCode, data);
Uri selectedImageUri = null;
String filePath = null;
if (resultCode == RESULT_OK) {
Bundle extra = data.getExtras();
bmp = (Bitmap) extra.get("data");
if (requestCode == 1) {
iv.setImageBitmap(bmp);
saveimage(bmp, requestCode);
image1String = encodeimagetosting(bmp);
}
if (requestCode == 2 && resultCode == RESULT_OK) {
selectedImageUri = data.getData();
}
if (selectedImageUri != null) {
try {
// OI FILE Manager
String filemanagerstring = selectedImageUri.getPath();
// MEDIA GALLERY
String selectedImagePath = getPath(selectedImageUri);
if (selectedImagePath != null) {
filePath = selectedImagePath;
} else if (filemanagerstring != null) {
filePath = filemanagerstring;
} else {
Toast.makeText(getApplicationContext(), "Unknown path",
Toast.LENGTH_LONG).show();
Log.d("Bitmap", "Unknown path");
}
if (filePath != null) {
decodeFile(filePath);
} else {
bmp = null;
}
} catch (Exception e) {
Toast.makeText(getApplicationContext(), "Internal error",
Toast.LENGTH_LONG).show();
Log.d(e.getClass().getName(), e.getMessage(), e);
}
}
}
}
enter code here
此方法用于保存从相机中捕获的内容
private void saveimage(Bitmap bmp, int requestCode) {
// TODO Auto-generated method stub
File sdcard = new File("/sdcard/");
File f = new File(sdcard, requestCode + ".jpeg");
FileOutputStream out = null;
try {
out = new FileOutputStream(f);
bmp.compress(Bitmap.CompressFormat.JPEG, 70, out);
out.flush();
out.close();
// uris.add(Uri.fromFile(f));
//Uri.parse(sdcard+"/"+requestCode+".png")
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
private String encodeimagetosting(Bitmap bitmap) {
// TODO Auto-generated method stub
Bitmap bm = bitmap;
ByteArrayOutputStream stream = new ByteArrayOutputStream();
bm.compress(Bitmap.CompressFormat.JPEG, 70, stream);
byte[] byteFormat = stream.toByteArray();
String imgString = Base64.encodeToString(byteFormat, Base64.DEFAULT);
Log.d("Bitmap", imgString);
return imgString;
}
private String encodeimagefromlibarary(Bitmap bitmap) {
// TODO Auto-generated method stub
Bitmap bm = bitmap;
ByteArrayOutputStream stream = new ByteArrayOutputStream();
bm.compress(Bitmap.CompressFormat.JPEG, 70, stream);
byte[] byteFormat = stream.toByteArray();
String imgStringlib = Base64.encodeToString(byteFormat, Base64.DEFAULT);
Log.d("Bitmap", imgStringlib);
return imgStringlib;
}
public void decodeFile(String filePath) {
// Decode image size
BitmapFactory.Options o = new BitmapFactory.Options();
o.inJustDecodeBounds = true;
BitmapFactory.decodeFile(filePath, o);
// The new size we want to scale to
final int REQUIRED_SIZE = 1024;
// Find the correct scale value. It should be the power of 2.
int width_tmp = o.outWidth, height_tmp = o.outHeight;
int scale = 1;
while (true) {
if (width_tmp < REQUIRED_SIZE && height_tmp < REQUIRED_SIZE)
break;
width_tmp /= 2;
height_tmp /= 2;
scale *= 2;
}
// Decode with inSampleSize
BitmapFactory.Options o2 = new BitmapFactory.Options();
o2.inSampleSize = scale;
bmp = BitmapFactory.decodeFile(filePath, o2);
iv.setImageBitmap(bmp);
}
public String getPath(Uri uri) {
String[] projection = { MediaStore.Images.Media.DATA };
Cursor cursor = managedQuery(uri, projection, null, null, null);
if (cursor != null) {
// HERE YOU WILL GET A NULLPOINTER IF CURSOR IS NULL
// THIS CAN BE, IF YOU USED OI FILE MANAGER FOR PICKING THE MEDIA
int column_index = cursor
.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
cursor.moveToFirst();
return cursor.getString(column_index);
} else
return null;
}
}
public class AddItems extends Activity {
ImageView iv;
EditText et1, et2;
Button b1;
Bitmap bmp;
String image1String, image2String, image3String;
String imgPath, fileName;
String encodedString;
private GoogleApiClient client;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_add_items);
iv = (ImageView) findViewById(R.id.imageget);
et1 = (EditText) findViewById(R.id.imageid);
et2 = (EditText) findViewById(R.id.imagedes);
b1 = (Button) findViewById(R.id.insert);
b1.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
new Thread(new Runnable() {
@Override
public void run() {
InputStream is;
BitmapFactory.Options bfo;
Bitmap bitmapOrg;
ByteArrayOutputStream bao ;
bfo = new BitmapFactory.Options();
bfo.inSampleSize = 2;
//bitmapOrg = BitmapFactory.decodeFile(Environment.getExternalStorageDirectory() + "/" + customImage, bfo);
bao = new ByteArrayOutputStream();
bmp.compress(Bitmap.CompressFormat.JPEG, 90, bao);
byte [] ba = bao.toByteArray();
image1String = Base64.encodeToString(ba,Base64.DEFAULT);
HashMap<String, String> prams = new HashMap<String, String>();
prams.put("ImageID", et1.getText().toString());
prams.put("ImageDesc", et2.getText().toString());
prams.put("ImagePath", image1String);
Network network = new Network("insertimage.php", prams);
String RecivedString = null;
try {
RecivedString = network.ToRecieveDataFromWeb();
Jsonparsing jasonparsing = new Jsonparsing(RecivedString);
HashMap<String, String> hashMap = jasonparsing.ParseJsonObject(RecivedString);
if (hashMap.get("Success").toString().equals("1")) {
ShowOnUni("Good");
} else {
ShowOnUni(hashMap.get("Message") + "");
}
} catch (IOException e) {
e.printStackTrace();
}
}
}).start();
}
});
iv.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
selectImage();
}
});
// ATTENTION: This was auto-generated to implement the App Indexing API.
// See https://g.co/AppIndexing/AndroidStudio for more information.
client = new GoogleApiClient.Builder(this).addApi(AppIndex.API).build();
}
private void ShowOnUni(final String error1) {
runOnUiThread(new Runnable() {
@Override
public void run() {
Toast.makeText(getApplicationContext(), error1 + "", Toast.LENGTH_LONG).show();
}
});
}
private void selectImage() {
final CharSequence[] items = {"Take Photo", "Choose from Library", "Cancel"};
AlertDialog.Builder builder = new AlertDialog.Builder(AddItems.this);
builder.setTitle("Add Photo!");
builder.setItems(items, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int item) {
if (items[item].equals("Take Photo")) {
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(intent, 1);
} else if (items[item].equals("Choose from Library")) {
Intent intent = new Intent(
Intent.ACTION_PICK,
MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
intent.setType("image/*");
startActivityForResult(
Intent.createChooser(intent, "Select File"),
2);
} else if (items[item].equals("Cancel")) {
dialog.dismiss();
}
}
});
builder.show();
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
// TODO Auto-generated method stub
super.onActivityResult(requestCode, resultCode, data);
Uri selectedImageUri = null;
String filePath = null;
if (resultCode == RESULT_OK) {
Bundle extra = data.getExtras();
bmp = (Bitmap) extra.get("data");
if (requestCode == 1) {
iv.setImageBitmap(bmp);
saveimage(bmp, requestCode);
image1String = encodeimagetosting(bmp);
}
if (requestCode == 2 && resultCode == RESULT_OK) {
selectedImageUri = data.getData();
}
if (selectedImageUri != null) {
try {
// OI FILE Manager
String filemanagerstring = selectedImageUri.getPath();
// MEDIA GALLERY
String selectedImagePath = getPath(selectedImageUri);
if (selectedImagePath != null) {
filePath = selectedImagePath;
} else if (filemanagerstring != null) {
filePath = filemanagerstring;
} else {
Toast.makeText(getApplicationContext(), "Unknown path",
Toast.LENGTH_LONG).show();
Log.d("Bitmap", "Unknown path");
}
if (filePath != null) {
decodeFile(filePath);
} else {
bmp = null;
}
} catch (Exception e) {
Toast.makeText(getApplicationContext(), "Internal error",
Toast.LENGTH_LONG).show();
Log.d(e.getClass().getName(), e.getMessage(), e);
}
}
}
}
private void saveimage(Bitmap bmp, int requestCode) {
// TODO Auto-generated method stub
File sdcard = new File("/sdcard/");
File f = new File(sdcard, requestCode + ".jpeg");
FileOutputStream out = null;
try {
out = new FileOutputStream(f);
bmp.compress(Bitmap.CompressFormat.JPEG, 70, out);
out.flush();
out.close();
// uris.add(Uri.fromFile(f));
//Uri.parse(sdcard+"/"+requestCode+".png")
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
private String encodeimagetosting(Bitmap bitmap) {
// TODO Auto-generated method stub
Bitmap bm = bitmap;
ByteArrayOutputStream stream = new ByteArrayOutputStream();
bm.compress(Bitmap.CompressFormat.JPEG, 70, stream);
byte[] byteFormat = stream.toByteArray();
String imgString = Base64.encodeToString(byteFormat, Base64.DEFAULT);
Log.d("Bitmap", imgString);
return imgString;
}
private String encodeimagefromlibarary(Bitmap bitmap) {
// TODO Auto-generated method stub
Bitmap bm = bitmap;
ByteArrayOutputStream stream = new ByteArrayOutputStream();
bm.compress(Bitmap.CompressFormat.JPEG, 70, stream);
byte[] byteFormat = stream.toByteArray();
String imgStringlib = Base64.encodeToString(byteFormat, Base64.DEFAULT);
Log.d("Bitmap", imgStringlib);
return imgStringlib;
}
public void decodeFile(String filePath) {
// Decode image size
BitmapFactory.Options o = new BitmapFactory.Options();
o.inJustDecodeBounds = true;
BitmapFactory.decodeFile(filePath, o);
// The new size we want to scale to
final int REQUIRED_SIZE = 1024;
// Find the correct scale value. It should be the power of 2.
int width_tmp = o.outWidth, height_tmp = o.outHeight;
int scale = 1;
while (true) {
if (width_tmp < REQUIRED_SIZE && height_tmp < REQUIRED_SIZE)
break;
width_tmp /= 2;
height_tmp /= 2;
scale *= 2;
}
// Decode with inSampleSize
BitmapFactory.Options o2 = new BitmapFactory.Options();
o2.inSampleSize = scale;
bmp = BitmapFactory.decodeFile(filePath, o2);
iv.setImageBitmap(bmp);
}
public String getPath(Uri uri) {
String[] projection = { MediaStore.Images.Media.DATA };
Cursor cursor = managedQuery(uri, projection, null, null, null);
if (cursor != null) {
// HERE YOU WILL GET A NULLPOINTER IF CURSOR IS NULL
// THIS CAN BE, IF YOU USED OI FILE MANAGER FOR PICKING THE MEDIA
int column_index = cursor
.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
cursor.moveToFirst();
return cursor.getString(column_index);
} else
return null;
}
}
答案 0 :(得分：0)
声明可变
private final static int SELECT_PHOTO = 12345;
String encodedImage;
全球变化和 通过以下代码打开您的Gallary
uploadbtn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
HAS_IMAGAE = false;
Intent i = new
Intent(Intent.ACTION_PICK, android.provider.MediaStore
.Images.Media.EXTERNAL_CONTENT_URI);
startActivityForResult(i, SELECT_PHOTO);
}
});
通过以下代码接收您的图片
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
switch (requestCode) {
case SELECT_PHOTO:
if (resultCode == RESULT_OK) {
try {
final Uri imageUri = data.getData();
imagepath = getPath(imageUri).toString();
String[] filePathColumn = {MediaStore.Images.Media.DATA};
Cursor cursor = getContentResolver().query(imageUri,
filePathColumn, null, null, null);
cursor.moveToFirst();
int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
imagepath = cursor.getString(columnIndex);
cursor.close();
//Toast.makeText(PersonalDetails.this,imagepath, Toast.LENGTH_SHORT).show();
final InputStream imageStream = getContentResolver().openInputStream(imageUri);
Bitmap selectedImage = BitmapFactory.decodeStream(imageStream);
encodedImage = BitMapToString(selectedImage);
} catch (FileNotFoundException e) {
e.printStackTrace();
}
}
}
}
将Bitmap转换为Base-64的Craete函数
public String BitMapToString(Bitmap bitmap) {
ByteArrayOutputStream baos = new ByteArrayOutputStream();
bitmap.compress(Bitmap.CompressFormat.JPEG, 70, baos);
byte[] b = baos.toByteArray();
String temp = Base64.encodeToString(b, Base64.DEFAULT);
return temp;
}
现在您可以通过Async Task和服务器端将此encodedImage传递给服务器，您必须将Base-64字符串转换为Image并保存。
答案 1 :(得分：0)
将此代码用于编码图像
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