Android 上传图片

private int PHOTO_REQUEST_CAREMA = 0;
private int PHOTO_REQUEST_GALLERY = 1;
private File tempFile;
private String PHOTO_FILE_NAME = "output_image.jpg";
private int PHOTO_REQUEST_CUT = 3;

private String PHOTO_NAME = "image.jpg";
private File file;

 /*
* 从相机获取
*/
 public void camera() {
     // 激活相机
     Intent intent = new Intent("android.media.action.IMAGE_CAPTURE");
     // 判断存储卡是否可以用，可用进行存储
     if (hasSdcard()) {
         tempFile = new File(Environment.getExternalStorageDirectory(),
                 PHOTO_FILE_NAME);
         // 从文件中创建uri
         Uri uri = Uri.fromFile(tempFile);
         intent.putExtra(MediaStore.EXTRA_OUTPUT, uri);
     }
     // 开启一个带有返回值的Activity，请求码为PHOTO_REQUEST_CAREMA
     startActivityForResult(intent, PHOTO_REQUEST_CAREMA);
 }

 /*
     * 从相册获取
     */
 public void gallery() {
     // 激活系统图库，选择一张图片
     Intent intent = new Intent(Intent.ACTION_PICK);
     intent.setType("image/*");
     // 开启一个带有返回值的Activity，请求码为PHOTO_REQUEST_GALLERY
     startActivityForResult(intent, PHOTO_REQUEST_GALLERY);
 }

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    if (requestCode == PHOTO_REQUEST_GALLERY) {
        // 从相册返回的数据
        if (data != null) {
            // 得到图片的全路径
            uri = data.getData();
            crop(uri);//裁剪图片
        }

    } else if (requestCode == PHOTO_REQUEST_CAREMA) {
        // 从相机返回的数据
        if (hasSdcard()) {
            crop(Uri.fromFile(tempFile));
        } else {
            Toast.makeText(MenuEditingActivity.this, "未找到存储卡，无法存储照片！", Toast.LENGTH_SHORT).show();
        }

    } else if (requestCode == PHOTO_REQUEST_CUT) {
        // 从剪切图片返回的数据
        if (data != null) {
            Bitmap bitmap = data.getParcelableExtra("data");
            ivDisplayImage.setImageBitmap(bitmap);
            try {
                file = new File(Environment.getExternalStorageDirectory(),
                        PHOTO_NAME);
                BufferedOutputStream outputStream = new BufferedOutputStream(new FileOutputStream(file));
                //压缩
                bitmap.compress(Bitmap.CompressFormat.PNG, 100, outputStream);
                outputStream.flush();
                outputStream.close();

            } catch (FileNotFoundException e) {
                e.printStackTrace();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        try {
            // 将临时文件删除
            tempFile.delete();
        } catch (Exception e) {
            e.printStackTrace();
        }

    }


}

private boolean hasSdcard() {
    if (Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) {
        return true;
    } else {
        return false;
    }
}

/*
 * 剪切图片
 */
private void crop(Uri uri) {
    // 裁剪图片意图
    Intent intent = new Intent("com.android.camera.action.CROP");
    intent.setDataAndType(uri, "image/*");
    intent.putExtra("crop", "true");
    // 裁剪框的比例，1：1
    intent.putExtra("aspectX", 1);
    intent.putExtra("aspectY", 1);
    // 裁剪后输出图片的尺寸大小
    intent.putExtra("outputX", 250);
    intent.putExtra("outputY", 250);

    intent.putExtra("outputFormat", "PNG");// 图片格式
    intent.putExtra("noFaceDetection", true);// 取消人脸识别
    intent.putExtra("return-data", true);
    // 开启一个带有返回值的Activity，请求码为PHOTO_REQUEST_CUT
    startActivityForResult(intent, PHOTO_REQUEST_CUT);
}