Question

我正在尝试将图像位图转换为base64string，以将其发布到服务器，但无法正常工作。它加载了这么长时间然后失败了。

这是我的代码onActivityResult

@Override
public void onActivityResult(int requenstCode, int resultCode, Intent data) {
    super.onActivityResult(requenstCode, resultCode, data);

    if (resultCode == Activity.RESULT_OK) {
        if (requenstCode == REQUEST_CAMERA) {
            selectedImageBitmap = (Bitmap) data.getExtras().get("data");
            imageView.setImageBitmap(selectedImageBitmap);
        } else if (requenstCode == SELECT_FILE) {
            Uri selectedImageUri = data.getData();
            try {
                selectedImageBitmap = MediaStore.Images.Media.getBitmap(getContentResolver(), selectedImageUri);
            } catch (IOException e) {
                e.printStackTrace();
            }
            imageView.setImageBitmap(selectedImageBitmap);
        }
        ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
        selectedImageBitmap.compress(Bitmap.CompressFormat.JPEG, 100, byteArrayOutputStream);
        byte[] byteArrayImage = byteArrayOutputStream.toByteArray();
        encodedImage = Base64.encodeToString(byteArrayImage, Base64.DEFAULT);
    }
}

请帮助如何使其工作

Answer 1

请勿使用base64字符串上传图片。压缩图片并将图片上传到服务器上

这是一个简单的php脚本

 ::selection{
    color: #f2f2f2;
    background: #404040;
    text-shadow: none;
}
 ::-moz-selection {
    color: #f2f2f2;
    background: #404040;
    text-shadow: none;
}

为FileUpload创建界面

  <?php

$target_dir = "img/";
$target_dir = $target_dir .basename($_FILES["file"]["name"]);
$response = array();

// Check if image file is a actual image or fake image
if (isset($_FILES["file"])) 
{


     if (move_uploaded_file($_FILES["file"]["tmp_name"], $target_dir)) 
     {
          $success = true;
          $message = "Successfully Uploaded";
     }
     else 
     {
         $success = false;
         $message = "Error while uploading ". $target_dir;
     }
}
else 
{
     $success = false;
     $message = "Required Field Missing";
}

$response["success"] = $success;
$response["message"] = $message;
echo json_encode($response);

?>

在Android上，使用翻新将压缩的图像上传到服务器

public interface FileUploadService {

    @Multipart
    @POST("upload.php")
    Call<ResponseBody> upload(
        @Part MultipartBody.Part file
    );

    @GET("images/{imageName}")
    Call<okhttp3.ResponseBody> getImage(@Path("imageName") String imageName);
}

如何从相机和文件中获取base64string并将其发布到服务器？

1 个答案: