[英]Error uploading file with Retrofit 2
我正在工作的系統有一個接收文件圖片的端點,以便設置用戶的個人資料圖片。 如果我嘗試通過郵遞員發送,一切正常:
當我嘗試使用改造從我的應用程序上載它時,它總是失敗。 代碼和堆棧跟蹤如下:
服務器端代碼:
begin
user = User.find(doorkeeper_token.resource_owner_id)
image = params[:image]
attachment = {
:filename => image[:filename],
:type => image[:type],
:headers => image[:head],
:tempfile => image[:tempfile]
}
image_link = ""
if params[:upload_type] == "profile"
user.profile_image = ActionDispatch::Http::UploadedFile.new(attachment)
image_link = get_image_path(user.id,params[:upload_type],"original",attachment[:filename])
user.image_profile_original = get_image_path(user.id,params[:upload_type],"original",attachment[:filename])
user.image_profile_large = get_image_path(user.id,params[:upload_type],"large",attachment[:filename])
/*e22*/
@Multipart
@POST("user/upload_image")
fun uploadUserImage(@Header("Authorization") authHeader: String, @Part("upload_type") description: RequestBody, @Part file: MultipartBody.Part): Call<ResponseWrapper>
fun uploadUserImage(image: Uri) {
val source = File(image.path)
val requestFile = RequestBody.create(MediaType.parse(getContext().contentResolver.getType(image)), source)
val body = MultipartBody.Part.createFormData("image", "profile", requestFile)
val description = RequestBody.create(okhttp3.MultipartBody.FORM, "profile")
mMessenger.uploadUserImage(getAuthorizationHeader(), description, body).enqueue(ResponseWrapperCallback(EventCatalog.e0022))
}
要求回復:
E/ResponseWrapperCallback: Failed processing request: profile: open failed: ENOENT (No such file or directory)
E/ResponseWrapperCallback: HTTP request mapped to event e0022 finished with error
我確實認為此錯誤與File對象的實例化有關。 如果我直接從Uri創建文件,則它的真實路徑似乎不會發送到服務器。 我說這是因為上面的錯誤日志,它說它沒有在檢索到的設備的Uri上找到該文件。 我試圖從Uri中提取文件的真實路徑,但是,服務器的錯誤日志已更改為:
/storage/emulated/0/Marvel/Media/Characters/Adam Warlock.jpeg: open failed: EACCES (Permission denied)
我使用真實文件路徑實例化File對象的方式是這樣的:
private fun getRealPathFromURI(contentURI: Uri): String {
val result: String
val cursor = getContext().contentResolver.query(contentURI, null, null, null, null)
if (cursor == null) {
result = contentURI.path
} else {
cursor.moveToFirst()
val idx = cursor.getColumnIndex(MediaStore.Images.ImageColumns.DATA)
result = cursor.getString(idx)
cursor.close()
}
return result
}
//....
val source = File(getRealPathFromURI(Uri))
根據用戶Anurag Singh的請求,以下是清單和操作系統信息:
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
android {
compileSdkVersion 25
buildToolsVersion "25.0.1"
defaultConfig {
applicationId "***"
minSdkVersion 16
targetSdkVersion 25
versionCode 1
versionName "1.0"
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
multiDexEnabled true
vectorDrawables.useSupportLibrary = true
}
}
這是Postman生成的代碼,效果很好!
OkHttpClient client = new OkHttpClient();
MediaType mediaType = MediaType.parse("multipart/form-data; boundary=----WebKitFormBoundary7MA4YWxkTrZu0gW");
RequestBody body = RequestBody.create(mediaType, "------WebKitFormBoundary7MA4YWxkTrZu0gW\r\nContent-Disposition: form-data; name=\"image\"; filename=\"sample 2.jpg\"\r\nContent-Type: image/jpeg\r\n\r\n\r\n------WebKitFormBoundary7MA4YWxkTrZu0gW\r\nContent-Disposition: form-data; name=\"upload_type\"\r\n\r\nprofile\r\n------WebKitFormBoundary7MA4YWxkTrZu0gW--");
Request request = new Request.Builder()
.url("http://********/user/upload_image")
.post(body)
.addHeader("content-type", "multipart/form-data; boundary=----WebKitFormBoundary7MA4YWxkTrZu0gW")
.addHeader("authorization", "Bearer ******")
.addHeader("cache-control", "no-cache")
.addHeader("postman-token", "******")
.build();
Response response = client.newCall(request).execute();
嘗試在AndroidManifest.xml
添加以下權限
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>.
從Android 6.0(API級別23)開始,用戶在應用程序運行時(而不是在安裝應用程序時)授予應用程序權限。 在運行時請求權限
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