실습을 따라하는데 mysql, mssql, oracle 모든 실습 환경에서 강의 내용과 다른 결과가 나오는것같아 질문드립니다. 일단 이 사진이 제가 게시글 작성을 통해 만들어둔것들입니다 ! 영상을 보면 mysql의 경우 검색창에 ' 문자 입력 시 에러 코드가 나오는게 정상인것 같은데 저는 에러창은 나오지 않으며 아래 사진처럼 검색 결과가 없다고만 출력이 됩니다..  또한 mysql의 경우 te' 'st 입력 시 test라고 검색한것과 같은 결과가 나와야 되는걸로 이해하엿는데 te' 'st 검색시에도 검색 결과가 없다고 출력됩니다 .. ㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡㅡ 다음은 mssql 쪽입니다 .. mssql도 mysql이랑 똑같이 글을 작성해 둔 뒤 mssql 환경에 맞게 te'+'st 로 검색을 하면 test를 검색한것과 동일한 결과값이 나와야한다고 배운것 같은데 위와 같은 에러가 나오면서 동일하게 검색이 안됩니다 ㅜㅜ .. oracle 또한 상황이 같으며 에러 창만 첨부해서 올립니다 .. oracle은 '||' 으로 검색하였습니다.

혹시 제가 SQL에대한 기본지식이 없다고 생각되는대 기본적인 CRUD말고는 지식이없는대 SQL을 공부하고 JPA강의를들어야할가요???

좋은 강의 열심히 듣고있습니다! @AutoWired 를 없애고 실행하여도 오류없이 DB추가 , 조회가 되는데 여기선 왜 없어도 실행이 잘되는건가요? 다른 오토와이어드는 지우면 실행 오류 났었는데, 이해가 되지않아 질문드립니다. 감사합니다! @Autowiredpublic SpringConfig(DataSource dataSource) { this.dataSource = dataSource;}

블로그 링크 좀 주실 수 있을까요 ?

안녕하세요! 20강 수업 15분 정도 위치에 있는 문제를 푸는 중에 궁금한게 생겨서 여쭤봅니다. 강사님께서 하신 것과 똑같이 작성했는데 (아래 첨부그림에서 보이듯) 계속 str object is not callable이란 오류가 떠서요. 구글링 했는데 이해가 가지 않아 여쭤봅니다. 새해복 많이 받으세요

실무를 하다보면, 개발기간내 시간에 쫒겨 비지니스 로직 구현만 하고, 테스트 코드 작성은 미뤄두다 결국 못하는 경우가 많습니다. 강사님 강의를 듣다보면 로직 구현 이상으로 테스트 코드 작성에 시간을 할애해야 할 정도로 중요하게 얘기를 하시는걸 느낄수 있는데요. 꼭 테스트 코드를 작성해야 하는 이유를 뭐라고 생각해야 할까요? 사실, 그동안은 테스트 코드는 형식상 작성하는거다라고 우선순위를 낮춰 생각해왔거든요. 제가 잘못생각하고 있었다면 조언 부탁드립니다.

안녕하세요! 기초강의 듣고 지금 유니티 플레이어 구현하기 하고있는 컴맹입니당.. 유니티랑 VS 2019, code 다 깔고 따라하고 있는데 새 프로젝트로 시작하고있는데 스크립트폴더 만들고 -> 스크립트 폴더안에 플레이어폴더 -> 플레이어 스크립트 만들어서  게임오브젝트에 추가도 했는데  제가 transform.position = Vector2.one 이 코드를 치고 포지션이 1,1로 변하는지 보려고 하는데 아무 변화도 없고 콘솔창에도 아무것도 뜨지 않습니다ㅠㅠ 뒤에 것들도 따라해봤는데 아무것도 안먹히고.. 무슨 NET 어쩌구 오류떠서 그것도 다운받고 메세지창 무시도 했는데 먹통이에요.. 제가 어떻게 해야 선생님처럼 오류없이 할수 있을까요? 오늘 날잡고 배워보려고 했는데 처음부터 막히니까 멘탈이 박살날것 같아요.. 네이버에 찾아봐도 모르겠고.. ㅠㅠㅠ 혹시 몰라서 플레이어 이동도 따라해봤는데 A 눌러도 아무것도 안뜨고 반응이 없습니다ㅠㅠ.. 답변 기다리겠습니다 감사합니다!

센서타워 통해 키워드를 지정한다는게, 앱스토어에서 검색 시 노출되게 하는 단어를 의미하는 걸까요?

수업 내용에 대한 질문은 아닙니다.^^ 다이어그램이 간단해보여 업무 정리로 좋을꺼 같에요. 어느 툴 사용하셨는지 여쭤봅니다.

공부하면서 직접 편집한 자료를 만들고 싶은데 강의자료가 어떤툴로 만드신건지 궁금합니다.

https://www.inflearn.com/questions/111465 해당 질문에 대한 답변을 읽다가 추가적으로 궁금한게 생겨서 질문을 남깁니다. 400 응답과 200 응답 중 선택하기 위해서는 비즈니스 로직까지 정상 수행했는지가 중요하다고 하셨는데 정상 수행이 되었다고 판단하는 범위가 어디까지 인지가 조금 헷갈려서 질문드립니다.예)1. 이미 배달 중이거나 완료인 주문을 다시 배달 시작 요청 시( post /orders/1/start_delivery)이건 비즈니스 로직을 정상적으로 수행할 수 없는 거라고 봐야 되는 건가요?(400)2. 보험금 시나리오(답변에서 언급하신)보험금 지급 시 승인 거절이라는 개념이 존재하지 않고 승인 또는 실패만 존재한다면 보험금 지급 요건을 충족하지 못한 사람의 요청은 400인가요?3. 회원가입 시나리오(답변에서 언급하신)보류 상태 없이 21살 이상 가입 20살 이하 실패라면 20살 이하인 경우 400인 거죠? 좋은 강의 항상 감사합니다. ㅎㅎ 건강하시고 새해 복 많이 받으세요 ㅎㅎ

세부 내용 An unhandled exception occurred while processing the request. AuthenticationException: The remote certificate is invalid according to the validation procedure. System.Net.Security.SslStream.StartSendAuthResetSignal(ProtocolToken message, AsyncProtocolRequest asyncRequest, ExceptionDispatchInfo exception) HttpRequestException: The SSL connection could not be established, see inner exception. System.Net.Http.ConnectHelper.EstablishSslConnectionAsyncCore(Stream stream, SslClientAuthenticationOptions sslOptions, CancellationToken cancellationToken) Stack  Query  Cookies  Headers  Routing AuthenticationException: The remote certificate is invalid according to the validation procedure. System.Net.Security.SslStream.StartSendAuthResetSignal(ProtocolToken message, AsyncProtocolRequest asyncRequest, ExceptionDispatchInfo exception) System.Net.Security.SslStream.CheckCompletionBeforeNextReceive(ProtocolToken message, AsyncProtocolRequest asyncRequest) System.Net.Security.SslStream.StartSendBlob(byte[] incoming, int count, AsyncProtocolRequest asyncRequest) System.Net.Security.SslStream.ProcessReceivedBlob(byte[] buffer, int count, AsyncProtocolRequest asyncRequest) System.Net.Security.SslStream.StartReadFrame(byte[] buffer, int readBytes, AsyncProtocolRequest asyncRequest) System.Net.Security.SslStream.StartReceiveBlob(byte[] buffer, AsyncProtocolRequest asyncRequest) System.Net.Security.SslStream.CheckCompletionBeforeNextReceive(ProtocolToken message, AsyncProtocolRequest asyncRequest) System.Net.Security.SslStream.StartSendBlob(byte[] incoming, int count, AsyncProtocolRequest asyncRequest) System.Net.Security.SslStream.ProcessReceivedBlob(byte[] buffer, int count, AsyncProtocolRequest asyncRequest) System.Net.Security.SslStream.StartReadFrame(byte[] buffer, int readBytes, AsyncProtocolRequest asyncRequest) System.Net.Security.SslStream.StartReceiveBlob(byte[] buffer, AsyncProtocolRequest asyncRequest) System.Net.Security.SslStream.CheckCompletionBeforeNextReceive(ProtocolToken message, AsyncProtocolRequest asyncRequest) System.Net.Security.SslStream.StartSendBlob(byte[] incoming, int count, AsyncProtocolRequest asyncRequest) System.Net.Security.SslStream.ProcessReceivedBlob(byte[] buffer, int count, AsyncProtocolRequest asyncRequest) System.Net.Security.SslStream.StartReadFrame(byte[] buffer, int readBytes, AsyncProtocolRequest asyncRequest) System.Net.Security.SslStream.PartialFrameCallback(AsyncProtocolRequest asyncRequest) System.Net.Security.SslStream.ThrowIfExceptional() System.Net.Security.SslStream.InternalEndProcessAuthentication(LazyAsyncResult lazyResult) System.Net.Security.SslStream.EndProcessAuthentication(IAsyncResult result) System.Net.Security.SslStream.EndAuthenticateAsClient(IAsyncResult asyncResult) System.Net.Security.SslStream+<>c.<AuthenticateAsClientAsync>b__65_1(IAsyncResult iar) System.Threading.Tasks.TaskFactory<TResult>.FromAsyncCoreLogic(IAsyncResult iar, Func<IAsyncResult, TResult> endFunction, Action<IAsyncResult> endAction, Task<TResult> promise, bool requiresSynchronization) System.Net.Http.ConnectHelper.EstablishSslConnectionAsyncCore(Stream stream, SslClientAuthenticationOptions sslOptions, CancellationToken cancellationToken) Show raw exception details System.Security.Authentication.AuthenticationException: The remote certificate is invalid according to the validation procedure. at System.Net.Security.SslStream.StartSendAuthResetSignal(ProtocolToken message, AsyncProtocolRequest asyncRequest, ExceptionDispatchInfo exception) at System.Net.Security.SslStream.CheckCompletionBeforeNextReceive(ProtocolToken message, AsyncProtocolRequest asyncRequest) at System.Net.Security.SslStream.StartSendBlob(Byte[] incoming, Int32 count, AsyncProtocolRequest asyncRequest) at System.Net.Security.SslStream.ProcessReceivedBlob(Byte[] buffer, Int32 count, AsyncProtocolRequest asyncRequest) at System.Net.Security.SslStream.StartReadFrame(Byte[] buffer, Int32 readBytes, AsyncProtocolRequest asyncRequest) at System.Net.Security.SslStream.StartReceiveBlob(Byte[] buffer, AsyncProtocolRequest asyncRequest) at System.Net.Security.SslStream.CheckCompletionBeforeNextReceive(ProtocolToken message, AsyncProtocolRequest asyncRequest) at System.Net.Security.SslStream.StartSendBlob(Byte[] incoming, Int32 count, AsyncProtocolRequest asyncRequest) at System.Net.Security.SslStream.ProcessReceivedBlob(Byte[] buffer, Int32 count, AsyncProtocolRequest asyncRequest) at System.Net.Security.SslStream.StartReadFrame(Byte[] buffer, Int32 readBytes, AsyncProtocolRequest asyncRequest) at System.Net.Security.SslStream.StartReceiveBlob(Byte[] buffer, AsyncProtocolRequest asyncRequest) at System.Net.Security.SslStream.CheckCompletionBeforeNextReceive(ProtocolToken message, AsyncProtocolRequest asyncRequest) at System.Net.Security.SslStream.StartSendBlob(Byte[] incoming, Int32 count, AsyncProtocolRequest asyncRequest) at System.Net.Security.SslStream.ProcessReceivedBlob(Byte[] buffer, Int32 count, AsyncProtocolRequest asyncRequest) at System.Net.Security.SslStream.StartReadFrame(Byte[] buffer, Int32 readBytes, AsyncProtocolRequest asyncRequest) at System.Net.Security.SslStream.PartialFrameCallback(AsyncProtocolRequest asyncRequest) --- End of stack trace from previous location where exception was thrown --- at System.Net.Security.SslStream.ThrowIfExceptional() at System.Net.Security.SslStream.InternalEndProcessAuthentication(LazyAsyncResult lazyResult) at System.Net.Security.SslStream.EndProcessAuthentication(IAsyncResult result) at System.Net.Security.SslStream.EndAuthenticateAsClient(IAsyncResult asyncResult) at System.Net.Security.SslStream.<>c.<AuthenticateAsClientAsync>b__65_1(IAsyncResult iar) at System.Threading.Tasks.TaskFactory`1.FromAsyncCoreLogic(IAsyncResult iar, Func`2 endFunction, Action`1 endAction, Task`1 promise, Boolean requiresSynchronization) --- End of stack trace from previous location where exception was thrown --- at System.Net.Http.ConnectHelper.EstablishSslConnectionAsyncCore(Stream stream, SslClientAuthenticationOptions sslOptions, CancellationToken cancellationToken) HttpRequestException: The SSL connection could not be established, see inner exception. System.Net.Http.ConnectHelper.EstablishSslConnectionAsyncCore(Stream stream, SslClientAuthenticationOptions sslOptions, CancellationToken cancellationToken) System.Threading.Tasks.ValueTask<TResult>.get_Result() System.Runtime.CompilerServices.ConfiguredValueTaskAwaitable<TResult>+ConfiguredValueTaskAwaiter.GetResult() System.Net.Http.HttpConnectionPool.ConnectAsync(HttpRequestMessage request, bool allowHttp2, CancellationToken cancellationToken) System.Threading.Tasks.ValueTask<TResult>.get_Result() System.Runtime.CompilerServices.ConfiguredValueTaskAwaitable<TResult>+ConfiguredValueTaskAwaiter.GetResult() System.Net.Http.HttpConnectionPool.CreateHttp11ConnectionAsync(HttpRequestMessage request, CancellationToken cancellationToken) System.Threading.Tasks.ValueTask<TResult>.get_Result() System.Runtime.CompilerServices.ConfiguredValueTaskAwaitable<TResult>+ConfiguredValueTaskAwaiter.GetResult() System.Net.Http.HttpConnectionPool.GetHttpConnectionAsync(HttpRequestMessage request, CancellationToken cancellationToken) System.Threading.Tasks.ValueTask<TResult>.get_Result() System.Runtime.CompilerServices.ConfiguredValueTaskAwaitable<TResult>+ConfiguredValueTaskAwaiter.GetResult() System.Net.Http.HttpConnectionPool.SendWithRetryAsync(HttpRequestMessage request, bool doRequestAuth, CancellationToken cancellationToken) System.Net.Http.RedirectHandler.SendAsync(HttpRequestMessage request, CancellationToken cancellationToken) System.Net.Http.DiagnosticsHandler.SendAsync(HttpRequestMessage request, CancellationToken cancellationToken) Microsoft.Extensions.Http.Logging.LoggingHttpMessageHandler.SendAsync(HttpRequestMessage request, CancellationToken cancellationToken) Microsoft.Extensions.Http.Logging.LoggingScopeHttpMessageHandler.SendAsync(HttpRequestMessage request, CancellationToken cancellationToken) System.Net.Http.HttpClient.FinishSendAsyncBuffered(Task<HttpResponseMessage> sendTask, HttpRequestMessage request, CancellationTokenSource cts, bool disposeCts) RankingApp.Data.Services.RankingService.GetGameResultsAsync() in RankingService.cs + var result = await _httpClient.GetAsync("api/ranking"); RankingApp.Pages.Ranking.OnInitializedAsync() in Ranking.razor + _gameResults = await RankingService.GetGameResultsAsync(); Microsoft.AspNetCore.Components.ComponentBase.RunInitAndSetParametersAsync() Microsoft.AspNetCore.Components.RenderTree.Renderer.GetErrorHandledTask(Task taskToHandle) Microsoft.AspNetCore.Components.Rendering.HtmlRenderer.HandleException(Exception exception) Microsoft.AspNetCore.Components.RenderTree.Renderer.GetErrorHandledTask(Task taskToHandle) Microsoft.AspNetCore.Components.RenderTree.Renderer.ProcessAsynchronousWork() Microsoft.AspNetCore.Components.RenderTree.Renderer.RenderRootComponentAsync(int componentId, ParameterView initialParameters) Microsoft.AspNetCore.Components.Rendering.HtmlRenderer.CreateInitialRenderAsync(Type componentType, ParameterView initialParameters) Microsoft.AspNetCore.Components.Rendering.HtmlRenderer.RenderComponentAsync(Type componentType, ParameterView initialParameters) Microsoft.AspNetCore.Components.Rendering.RendererSynchronizationContext+<>c__11<TResult>+<<InvokeAsync>b__11_0>d.MoveNext() Microsoft.AspNetCore.Mvc.ViewFeatures.StaticComponentRenderer.PrerenderComponentAsync(ParameterView parameters, HttpContext httpContext, Type componentType) Microsoft.AspNetCore.Mvc.ViewFeatures.ComponentRenderer.PrerenderedServerComponentAsync(HttpContext context, ServerComponentInvocationSequence invocationId, Type type, ParameterView parametersCollection) Microsoft.AspNetCore.Mvc.ViewFeatures.ComponentRenderer.RenderComponentAsync(ViewContext viewContext, Type componentType, RenderMode renderMode, object parameters) Microsoft.AspNetCore.Mvc.TagHelpers.ComponentTagHelper.ProcessAsync(TagHelperContext context, TagHelperOutput output) Microsoft.AspNetCore.Razor.Runtime.TagHelpers.TagHelperRunner.<RunAsync>g__Awaited|0_0(Task task, TagHelperExecutionContext executionContext, int i, int count) RankingApp.Pages.Pages__Host.<ExecuteAsync>b__14_1() in _Host.cshtml + <component type="typeof(App)" render-mode="ServerPrerendered" /> Microsoft.AspNetCore.Razor.Runtime.TagHelpers.TagHelperExecutionContext.SetOutputContentAsync() RankingApp.Pages.Pages__Host.ExecuteAsync() in _Host.cshtml + Layout = null; Microsoft.AspNetCore.Mvc.Razor.RazorView.RenderPageCoreAsync(IRazorPage page, ViewContext context) Microsoft.AspNetCore.Mvc.Razor.RazorView.RenderPageAsync(IRazorPage page, ViewContext context, bool invokeViewStarts) Microsoft.AspNetCore.Mvc.Razor.RazorView.RenderAsync(ViewContext context) Microsoft.AspNetCore.Mvc.ViewFeatures.ViewExecutor.ExecuteAsync(ViewContext viewContext, string contentType, Nullable<int> statusCode) Microsoft.AspNetCore.Mvc.ViewFeatures.ViewExecutor.ExecuteAsync(ViewContext viewContext, string contentType, Nullable<int> statusCode) Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeNextResultFilterAsync>g__Awaited|29_0<TFilter, TFilterAsync>(ResourceInvoker invoker, Task lastTask, State next, Scope scope, object state, bool isCompleted) Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.Rethrow(ResultExecutedContextSealed context) Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.ResultNext<TFilter, TFilterAsync>(ref State next, ref Scope scope, ref object state, ref bool isCompleted) Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeResultFilters>g__Awaited|27_0(ResourceInvoker invoker, Task lastTask, State next, Scope scope, object state, bool isCompleted) Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeNextResourceFilter>g__Awaited|24_0(ResourceInvoker invoker, Task lastTask, State next, Scope scope, object state, bool isCompleted) Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.Rethrow(ResourceExecutedContextSealed context) Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.Next(ref State next, ref Scope scope, ref object state, ref bool isCompleted) Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeFilterPipelineAsync>g__Awaited|19_0(ResourceInvoker invoker, Task lastTask, State next, Scope scope, object state, bool isCompleted) Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeAsync>g__Awaited|17_0(ResourceInvoker invoker, Task task, IDisposable scope) Microsoft.AspNetCore.Routing.EndpointMiddleware.<Invoke>g__AwaitRequestTask|6_0(Endpoint endpoint, Task requestTask, ILogger logger) Microsoft.AspNetCore.Authorization.AuthorizationMiddleware.Invoke(HttpContext context) Microsoft.AspNetCore.Authentication.AuthenticationMiddleware.Invoke(HttpContext context) Microsoft.AspNetCore.Diagnostics.EntityFrameworkCore.MigrationsEndPointMiddleware.Invoke(HttpContext context) Microsoft.AspNetCore.Diagnostics.EntityFrameworkCore.DatabaseErrorPageMiddleware.Invoke(HttpContext httpContext) Microsoft.AspNetCore.Diagnostics.EntityFrameworkCore.DatabaseErrorPageMiddleware.Invoke(HttpContext httpContext) Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddleware.Invoke(HttpContext context) Show raw exception details System.Net.Http.HttpRequestException: The SSL connection could not be established, see inner exception. ---> System.Security.Authentication.AuthenticationException: The remote certificate is invalid according to the validation procedure. at System.Net.Security.SslStream.StartSendAuthResetSignal(ProtocolToken message, AsyncProtocolRequest asyncRequest, ExceptionDispatchInfo exception) at System.Net.Security.SslStream.CheckCompletionBeforeNextReceive(ProtocolToken message, AsyncProtocolRequest asyncRequest) at System.Net.Security.SslStream.StartSendBlob(Byte[] incoming, Int32 count, AsyncProtocolRequest asyncRequest) at System.Net.Security.SslStream.ProcessReceivedBlob(Byte[] buffer, Int32 count, AsyncProtocolRequest asyncRequest) at System.Net.Security.SslStream.StartReadFrame(Byte[] buffer, Int32 readBytes, AsyncProtocolRequest asyncRequest) at System.Net.Security.SslStream.StartReceiveBlob(Byte[] buffer, AsyncProtocolRequest asyncRequest) at System.Net.Security.SslStream.CheckCompletionBeforeNextReceive(ProtocolToken message, AsyncProtocolRequest asyncRequest) at System.Net.Security.SslStream.StartSendBlob(Byte[] incoming, Int32 count, AsyncProtocolRequest asyncRequest) at System.Net.Security.SslStream.ProcessReceivedBlob(Byte[] buffer, Int32 count, AsyncProtocolRequest asyncRequest) at System.Net.Security.SslStream.StartReadFrame(Byte[] buffer, Int32 readBytes, AsyncProtocolRequest asyncRequest) at System.Net.Security.SslStream.StartReceiveBlob(Byte[] buffer, AsyncProtocolRequest asyncRequest) at System.Net.Security.SslStream.CheckCompletionBeforeNextReceive(ProtocolToken message, AsyncProtocolRequest asyncRequest) at System.Net.Security.SslStream.StartSendBlob(Byte[] incoming, Int32 count, AsyncProtocolRequest asyncRequest) at System.Net.Security.SslStream.ProcessReceivedBlob(Byte[] buffer, Int32 count, AsyncProtocolRequest asyncRequest) at System.Net.Security.SslStream.StartReadFrame(Byte[] buffer, Int32 readBytes, AsyncProtocolRequest asyncRequest) at System.Net.Security.SslStream.PartialFrameCallback(AsyncProtocolRequest asyncRequest) --- End of stack trace from previous location where exception was thrown --- at System.Net.Security.SslStream.ThrowIfExceptional() at System.Net.Security.SslStream.InternalEndProcessAuthentication(LazyAsyncResult lazyResult) at System.Net.Security.SslStream.EndProcessAuthentication(IAsyncResult result) at System.Net.Security.SslStream.EndAuthenticateAsClient(IAsyncResult asyncResult) at System.Net.Security.SslStream.<>c.<AuthenticateAsClientAsync>b__65_1(IAsyncResult iar) at System.Threading.Tasks.TaskFactory`1.FromAsyncCoreLogic(IAsyncResult iar, Func`2 endFunction, Action`1 endAction, Task`1 promise, Boolean requiresSynchronization) --- End of stack trace from previous location where exception was thrown --- at System.Net.Http.ConnectHelper.EstablishSslConnectionAsyncCore(Stream stream, SslClientAuthenticationOptions sslOptions, CancellationToken cancellationToken) --- End of inner exception stack trace --- at System.Net.Http.ConnectHelper.EstablishSslConnectionAsyncCore(Stream stream, SslClientAuthenticationOptions sslOptions, CancellationToken cancellationToken) at System.Net.Http.HttpConnectionPool.ConnectAsync(HttpRequestMessage request, Boolean allowHttp2, CancellationToken cancellationToken) at System.Net.Http.HttpConnectionPool.CreateHttp11ConnectionAsync(HttpRequestMessage request, CancellationToken cancellationToken) at System.Net.Http.HttpConnectionPool.GetHttpConnectionAsync(HttpRequestMessage request, CancellationToken cancellationToken) at System.Net.Http.HttpConnectionPool.SendWithRetryAsync(HttpRequestMessage request, Boolean doRequestAuth, CancellationToken cancellationToken) at System.Net.Http.RedirectHandler.SendAsync(HttpRequestMessage request, CancellationToken cancellationToken) at System.Net.Http.DiagnosticsHandler.SendAsync(HttpRequestMessage request, CancellationToken cancellationToken) at Microsoft.Extensions.Http.Logging.LoggingHttpMessageHandler.SendAsync(HttpRequestMessage request, CancellationToken cancellationToken) at Microsoft.Extensions.Http.Logging.LoggingScopeHttpMessageHandler.SendAsync(HttpRequestMessage request, CancellationToken cancellationToken) at System.Net.Http.HttpClient.FinishSendAsyncBuffered(Task`1 sendTask, HttpRequestMessage request, CancellationTokenSource cts, Boolean disposeCts) at RankingApp.Data.Services.RankingService.GetGameResultsAsync() in C:\Users\tkdri\source\repos\RankingApp\RankingApp\Data\Services\RankingService.cs:line 52 at RankingApp.Pages.Ranking.OnInitializedAsync() in C:\Users\tkdri\source\repos\RankingApp\RankingApp\Pages\Ranking.razor:line 95 at Microsoft.AspNetCore.Components.ComponentBase.RunInitAndSetParametersAsync() at Microsoft.AspNetCore.Components.RenderTree.Renderer.GetErrorHandledTask(Task taskToHandle) at Microsoft.AspNetCore.Components.Rendering.HtmlRenderer.HandleException(Exception exception) at Microsoft.AspNetCore.Components.RenderTree.Renderer.GetErrorHandledTask(Task taskToHandle) at Microsoft.AspNetCore.Components.RenderTree.Renderer.ProcessAsynchronousWork() at Microsoft.AspNetCore.Components.RenderTree.Renderer.RenderRootComponentAsync(Int32 componentId, ParameterView initialParameters) at Microsoft.AspNetCore.Components.Rendering.HtmlRenderer.CreateInitialRenderAsync(Type componentType, ParameterView initialParameters) at Microsoft.AspNetCore.Components.Rendering.HtmlRenderer.RenderComponentAsync(Type componentType, ParameterView initialParameters) at Microsoft.AspNetCore.Components.Rendering.RendererSynchronizationContext.<>c__11`1.<<InvokeAsync>b__11_0>d.MoveNext() --- End of stack trace from previous location where exception was thrown --- at Microsoft.AspNetCore.Mvc.ViewFeatures.StaticComponentRenderer.PrerenderComponentAsync(ParameterView parameters, HttpContext httpContext, Type componentType) at Microsoft.AspNetCore.Mvc.ViewFeatures.ComponentRenderer.PrerenderedServerComponentAsync(HttpContext context, ServerComponentInvocationSequence invocationId, Type type, ParameterView parametersCollection) at Microsoft.AspNetCore.Mvc.ViewFeatures.ComponentRenderer.RenderComponentAsync(ViewContext viewContext, Type componentType, RenderMode renderMode, Object parameters) at Microsoft.AspNetCore.Mvc.TagHelpers.ComponentTagHelper.ProcessAsync(TagHelperContext context, TagHelperOutput output) at Microsoft.AspNetCore.Razor.Runtime.TagHelpers.TagHelperRunner.<RunAsync>g__Awaited|0_0(Task task, TagHelperExecutionContext executionContext, Int32 i, Int32 count) at RankingApp.Pages.Pages__Host.<ExecuteAsync>b__14_1() in C:\Users\tkdri\source\repos\RankingApp\RankingApp\Pages\_Host.cshtml:line 20 at Microsoft.AspNetCore.Razor.Runtime.TagHelpers.TagHelperExecutionContext.SetOutputContentAsync() at RankingApp.Pages.Pages__Host.ExecuteAsync() in C:\Users\tkdri\source\repos\RankingApp\RankingApp\Pages\_Host.cshtml:line 5 at Microsoft.AspNetCore.Mvc.Razor.RazorView.RenderPageCoreAsync(IRazorPage page, ViewContext context) at Microsoft.AspNetCore.Mvc.Razor.RazorView.RenderPageAsync(IRazorPage page, ViewContext context, Boolean invokeViewStarts) at Microsoft.AspNetCore.Mvc.Razor.RazorView.RenderAsync(ViewContext context) at Microsoft.AspNetCore.Mvc.ViewFeatures.ViewExecutor.ExecuteAsync(ViewContext viewContext, String contentType, Nullable`1 statusCode) at Microsoft.AspNetCore.Mvc.ViewFeatures.ViewExecutor.ExecuteAsync(ViewContext viewContext, String contentType, Nullable`1 statusCode) at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeNextResultFilterAsync>g__Awaited|29_0[TFilter,TFilterAsync](ResourceInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted) at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.Rethrow(ResultExecutedContextSealed context) at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.ResultNext[TFilter,TFilterAsync](State& next, Scope& scope, Object& state, Boolean& isCompleted) at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeResultFilters>g__Awaited|27_0(ResourceInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted) at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeNextResourceFilter>g__Awaited|24_0(ResourceInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted) at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.Rethrow(ResourceExecutedContextSealed context) at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted) at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeFilterPipelineAsync>g__Awaited|19_0(ResourceInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted) at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeAsync>g__Awaited|17_0(ResourceInvoker invoker, Task task, IDisposable scope) at Microsoft.AspNetCore.Routing.EndpointMiddleware.<Invoke>g__AwaitRequestTask|6_0(Endpoint endpoint, Task requestTask, ILogger logger) at Microsoft.AspNetCore.Authorization.AuthorizationMiddleware.Invoke(HttpContext context) at Microsoft.AspNetCore.Authentication.AuthenticationMiddleware.Invoke(HttpContext context) at Microsoft.AspNetCore.Diagnostics.EntityFrameworkCore.MigrationsEndPointMiddleware.Invoke(HttpContext context) at Microsoft.AspNetCore.Diagnostics.EntityFrameworkCore.DatabaseErrorPageMiddleware.Invoke(HttpContext httpContext) at Microsoft.AspNetCore.Diagnostics.EntityFrameworkCore.DatabaseErrorPageMiddleware.Invoke(HttpContext httpContext) at Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddleware.Invoke(HttpContext context)

강의에서 이 부분이 이해가 잘 안가서 질문 드립니다. Odds(p)가 뭐길래 선형 회귀식에 확률을 적용할 수 있는지, 왜 Log(Odds(p))가 w1x + w0인지 모르겠습니다. 범위가 (0,무한)이던 Odds(p)에 로그를 취하면 (-무한,무한)이 되는 건 알겠는데... 음.. 그냥 저 과정이 다 뭐하는 과정인지 모르겠습니다. 그냥 p(x) 식만 놓고 보면 회귀 결과값의 범위를 (0,1)로 바꾸기 위해 시그모이드 함수를 썼구나라고 느껴지는데... Log(Odds)의 의미가 무엇인가요??

[실전] 크롤링과 데이터베이스 - 크롤링 코드 작성 시작 강의 5분 17초 내용입니다 def get_category(category_link, category_name): res = requests.get(category_link) soup = BeautifulSoup(res.content, 'html.parser') sub_categories = soup.select('div.navi.group ul li a') for sub_category in sub_categories: print(category_link, category_name, sub_category.text(), sub_category['href']) 위와같이 함수 만들었고 import requests from bs4 import BeautifulSoup res = requests.get('http://corners.gmarket.co.kr/Bestsellers') soup = BeautifulSoup(res.content, 'html.parser') categories = soup.select('div.gbest-cate ul.by-group li a') for category in categories: get_category('http://corners.gmarket.co.kr/' + category['href'], category.get_text()) 위와같이 코드작성을 해서 실행을 하면 이렇게 오류가 납니다 str관련하여 작성한게 없는데, 왜 위와같이 오류가 나는지 잘이해를 못하겠네요 원인 알려주시면 감사하겠습니다! 새해복많으시고, 좋은강의 항상 감사드립니다

안녕하세요 영한님 야생으로 오니까 너무 강의가 재밌고 스프링이 너무 재밌어 질라 하네요. 다름이 아니라 yml 파일 주석처리하고 h2 데이터베이스 연결 해제 후에 테스트 돌리면 초록불이 들어와서 기분이 좋았는데요 궁금한 점이 스프링 부트에서 그냥 자체적으로 jdbc:h2:mem:testdb를 커넥트해서 테스트를 돌리신다고 하셨습니다. 근데 제 창에는 jdbc:h2:mem:testdb가 아니라 jdbc:h2:mem:{특정 id}라고 해야하나요 그렇게 나오네요 ex) jdbc:h2:mem:ab3c-dfafd-dafa.... junit5 사용해서 개발했는데 혹시 왜 이렇게 나오는 걸까요?

선생님께서 예시로 들어주신 로또 번호를 뽑는 경우에서각기 다 다른 번호가 나오게 할 수 있는 방법이 있나요?예를 들어서 22 22 이렇게 같은 번호가 나오지 않는 방법이 궁금합니다.

위치정보를 경도,위도로 설명해 주셨는데, 주소 정보로 마커를 생성할 수는 없는지요?

updateItem 메소드에서 Book이 DB에 저장된적이 있어서 식별자가 존재하여 영속성 컨텍스트에서 관리하지 않는다고 하셨는데요. 1. 그러면 Book을 new Book()으로 생성하고 setId에서 임의로 현재 DB에 존재하지 않는 id를 입력하면 어떻게 될까요?? 2. 준영속 엔티티가 된 이유가 id가 존재해서 라기 보다는 Book 객체의 생성시 영속성컨텍스트를 거치지 않고 생성자를 거쳤기 때문에 준영속 엔티티가 된건 아닌가요??

크게 나누자면 멀티쓰레드, 네트워크, 패킷 이렇게 강의가 세 섹션으로 나눠져있는데 제가 이해한 각각의 게임에서의 작동하는 의미는 패킷은 클라에서 어떤 스킬을 쓰면 그 패킷을 보내고 서버에서 받고 나머지 클라한테 뿌려주고, 네트워크는 받은 패킷을 분석하고 나머지 클라한테 뿌려주는 우체국같은 느낌이고 [Q1]멀티쓰레드는 어디서 어떻게 게임에서 활용하는지 잘 모르겠어요 [Q2]위에 제가 설명한 부분이 제대로 이해하고 있는지도 잘모르겠구요

안녕하세요 강사님. 강의 잘 듣고 있습니다. 다름이 아니라, 강의 내용 일부를 개인 테크 블로그에 포스트 하고자 하는데, 포스트 해도 괜찮은지 궁금합니다.  항상 좋은 강의 올려주셔서 감사합니다.