我正在使用以下代码将图像和文本发送到 PHP 网络服务。
try {
HttpClient httpClient = new DefaultHttpClient();
HttpContext localContext = new BasicHttpContext();
HttpPost httpPost = new HttpPost(URL);
MultipartEntity entity = new MultipartEntity(
HttpMultipartMode.BROWSER_COMPATIBLE);
ByteArrayOutputStream bos = new ByteArrayOutputStream();
bitmap.compress(CompressFormat.JPEG, 75, bos);
byte[] data = bos.toByteArray();
entity.addPart("files[]",
new ByteArrayBody(data, "myImage.jpg"));
entity.addPart("message0", new StringBody(caption.getText()
.toString()));
httpPost.setEntity(entity);
HttpResponse response = httpClient.execute(httpPost,
localContext);
BufferedReader reader = new BufferedReader(
new InputStreamReader(
response.getEntity().getContent(), "UTF-8"));
String sResponse = reader.readLine();
return sResponse;
} catch (Exception e) {
if (dialog.isShowing())
dialog.dismiss();
Toast.makeText(ImageUpload.this, e.getMessage(),
Toast.LENGTH_LONG).show();
Log.e(e.getClass().getName(), e.getMessage(), e);
return null;
}
}
它完美地工作。但这仅适用于一张图像。我想发送 5 张图片。
示例：Image1 - Text1
Image2 - Text2等等。
因此，我对如何一张一张地存储 5 张图像然后单击按钮将这些图像和与它们关联的文本发送到服务器感到困惑。
我正在从手机的相机中获取图像。
Intent intent = new Intent();
intent.setType("image/*");
intent.setAction(Intent.ACTION_GET_CONTENT);
startActivityForResult(
Intent.createChooser(intent, "Select Picture"),
PICK_IMAGE);
public void onActivityResult_photo(int requestCode, int resultCode,
Intent data) {
// TODO Auto-generated method stub
if (resultCode == RESULT_OK) {
if (data != null) {
mImageCaptureUri = data.getData();
display(mImageCaptureUri);
} else {
Toast.makeText(CustomTabActivity.mTabHost.getContext(),
"No photo selected..", Toast.LENGTH_SHORT).show();
}
}
}
private String display(Uri mImageCaptureUri2) {
// TODO Auto-generated method stub
String base64string = null;
try {
if (mImageCaptureUri2 != null) {
System.gc();
selectedImagePath = getPath(mImageCaptureUri2);
File filenew = new File(selectedImagePath);
int file_size = Integer.parseInt(String.valueOf(filenew
.length() / 1024));
if (file_size <= 10000) {
PD1 = ProgressDialog.show(
CustomTabActivity.mTabHost.getContext(), "",
"Loading...");
Handler refresh = new Handler(Looper.getMainLooper());
refresh.post(new Runnable() {
public void run() {
PD1.setCancelable(true);
Bitmap newbitmap;
newbitmap = decodeFile(selectedImagePath);
ByteArrayOutputStream bs = new ByteArrayOutputStream();
newbitmap.compress(Bitmap.CompressFormat.PNG, 50,
bs);
img.setVisibility(View.VISIBLE);
img.setImageBitmap(newbitmap);
byte[] abc = bitmapToByteArray(newbitmap);
if (txt_phototext.getText().toString().equals("")) {
submit.put(abc, "");
} else {
submit.put(abc, txt_phototext.getText()
.toString());
// executeMultipartPost();
}
PD1.dismiss();
}
});
} else {
AlertDialog.Builder alertbox = new AlertDialog.Builder(
CustomTabActivity.mTabHost.getContext());
alertbox.setMessage("Take Image Size Less than 10 MB");
alertbox.setNeutralButton("Ok",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface arg0,
int arg1) {
finish();
}
});
alertbox.show();
}
} else {
System.out.println("===============NULL========");
}
} catch (Exception e) {
// // TODO Auto-generated catch block
// e.printStackTrace();
}
return base64string;
}
static Bitmap decodeFile(String str) {
try {
// decode image size
BitmapFactory.Options o = new BitmapFactory.Options();
o.inJustDecodeBounds = true;
BitmapFactory.decodeStream(new FileInputStream(str), null, o);
// Find the correct scale value. It should be the power of 2.
final int REQUIRED_SIZE = 70;
int width_tmp = o.outWidth, height_tmp = o.outHeight;
int scale = 1;
while (true) {
if (width_tmp / 2 < REQUIRED_SIZE
|| height_tmp / 2 < REQUIRED_SIZE)
break;
width_tmp /= 2;
height_tmp /= 2;
scale++;
}
// decode with inSampleSize
BitmapFactory.Options o2 = new BitmapFactory.Options();
o2.inSampleSize = scale;
return BitmapFactory.decodeStream(new FileInputStream(str), null,
o2);
} catch (FileNotFoundException e) {
}
return null;
}
public static byte[] bitmapToByteArray(Bitmap bitmap) {
ByteArrayOutputStream bos = new ByteArrayOutputStream();
bitmap.compress(CompressFormat.PNG, 0 /* ignored for PNG */, bos);
byte[] bitmapdata = bos.toByteArray();
return bitmapdata;
}