■ 대용량 데이터를 스트리밍 방식으로 전달받는 방법을 보여준다.
[TestLibrary 프로젝트]
▶ ValueModel.cs
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namespace TestLibrary { /// <summary> /// 값 모델 /// </summary> public class ValueModel { //////////////////////////////////////////////////////////////////////////////////////////////////// Property ////////////////////////////////////////////////////////////////////////////////////////// Public #region ID - ID /// <summary> /// ID /// </summary> public int ID { get; set; } #endregion #region 데이터 - Data /// <summary> /// 데이터 /// </summary> public string Data { get; set; } #endregion #region 태그 - Tag /// <summary> /// 태그 /// </summary> public string Tag { get; set; } #endregion } } |
[TestClient 프로젝트]
▶ Program.cs
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using System; using System.Collections.Generic; using System.IO; using System.Net; using System.Net.Http; using System.Net.Http.Headers; using System.Text; using Newtonsoft.Json; using TestLibrary; namespace TestClient { /// <summary> /// 프로그램 /// </summary> class Program { //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Static //////////////////////////////////////////////////////////////////////////////// Private #region 프로그램 시작하기 - Main() /// <summary> /// 프로그램 시작하기 /// </summary> private static void Main() { Console.Title = "대용량 데이터를 스트리밍 방식으로 전달받기"; Console.WriteLine("PRESS ANY KEY TO CONTINUE..."); Console.ReadKey(true); //TestPOSTData1(); //TestPOSTData2(); TestGETData(); Console.WriteLine("PRESS ANY KEY TO EXIT..."); Console.ReadKey(true); } #endregion #region POST 데이터 구하기 1 - GetPOSTData1<TResultItem>(url, source) /// <summary> /// POST 데이터 구하기 1 /// </summary> /// <typeparam name="TResultItem">결과 항목 타입</typeparam> /// <param name="url">URL</param> /// <param name="source">소스 객체</param> /// <returns>결과 항목 타입 열거 가능형</returns> private static IEnumerable<TResultItem> GetPOSTData1<TResultItem>(string url, object source) { string sourceJSON = JsonConvert.SerializeObject(source); HttpRequestMessage requestMessage = new HttpRequestMessage(HttpMethod.Post, url); requestMessage.Content = new StringContent(sourceJSON, Encoding.UTF8, "application/json"); requestMessage.Headers.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json")); HttpClient client = new HttpClient(); HttpResponseMessage responseMessage = client.SendAsync(requestMessage, HttpCompletionOption.ResponseHeadersRead).Result; responseMessage.EnsureSuccessStatusCode(); using(Stream stream = responseMessage.Content.ReadAsStreamAsync().Result) { using(StreamReader streamReader = new StreamReader(stream)) { JsonSerializer serializer = new JsonSerializer(); using(JsonTextReader jsonTextReader = new JsonTextReader(streamReader)) { while(jsonTextReader.Read()) { if(jsonTextReader.TokenType != JsonToken.StartArray && jsonTextReader.TokenType != JsonToken.EndArray) { yield return serializer.Deserialize<TResultItem>(jsonTextReader); } } } } } } #endregion #region POST 데이터 테스트하기 1 - TestPOSTData1() /// <summary> /// POST 데이터 테스트하기 1 /// </summary> private static void TestPOSTData1() { string url = "http://localhost:5569/api/test/postdata"; ValueModel source = new ValueModel(); source.ID = -1; source.Data = "NODATA"; source.Tag = "POST3"; foreach(ValueModel value in GetPOSTData1<ValueModel>(url, source)) { Console.WriteLine("{0} {1} {2}", value.ID, value.Data.Length, value.Tag); } } #endregion #region POST 스트림 구하기 - POSTGetStream(serverURL, contentType, encoding, argument, timeOut) /// <summary> /// POST 스트림 구하기 /// </summary> /// <param name="serverURL">서버 URL</param> /// <param name="contentType">컨텐츠 타입</param> /// <param name="encoding">인코딩</param> /// <param name="argument">인자 문자열</param> /// <param name="timeOut">타임 아웃</param> /// <returns>POST 스트림</returns> private static Stream POSTGetStream(string serverURL, string contentType, Encoding encoding, string argument, int? timeOut = null) { byte[] argumentArray = encoding.GetBytes(argument); HttpWebRequest request = WebRequest.Create(serverURL) as HttpWebRequest; request.ProtocolVersion = HttpVersion.Version11; request.AllowAutoRedirect = true; request.AllowWriteStreamBuffering = true; request.Method = WebRequestMethods.Http.Post; request.ContentType = contentType; request.ContentLength = argumentArray.Length; if(timeOut.HasValue) { request.Timeout = timeOut.Value; } using(Stream requestStream = request.GetRequestStream()) { requestStream.Write(argumentArray, 0, argumentArray.Length); } HttpWebResponse response = request.GetResponse() as HttpWebResponse; Stream responseStream = response.GetResponseStream(); return responseStream; } #endregion #region POST 데이터 구하기 2 - GetPOSTData2<TResultItem>(url, source) /// <summary> /// POST 데이터 구하기 2 /// </summary> /// <typeparam name="TResultItem">결과 항목 타입</typeparam> /// <param name="url">URL</param> /// <param name="source">소스 객체</param> /// <returns>결과 항목 타입 열거 가능형</returns> private static IEnumerable<TResultItem> GetPOSTData2<TResultItem>(string url, object source) { string sourceJSON = JsonConvert.SerializeObject(source); using(Stream stream = POSTGetStream(url, "application/json; charset=utf-8", Encoding.UTF8, sourceJSON)) { using(StreamReader streamReader = new StreamReader(stream)) { using(JsonTextReader jsonTextReader = new JsonTextReader(streamReader)) { JsonSerializer serializer = new JsonSerializer(); while(jsonTextReader.Read()) { if(jsonTextReader.TokenType != JsonToken.StartArray && jsonTextReader.TokenType != JsonToken.EndArray) { yield return serializer.Deserialize<TResultItem>(jsonTextReader); } } } } } } #endregion #region POST 데이터 테스트하기 2 - TestPOSTData2() /// <summary> /// POST 데이터 테스트하기 2 /// </summary> private static void TestPOSTData2() { string url = "http://localhost:5569/api/test/postdata"; ValueModel source = new ValueModel(); source.ID = -1; source.Data = "NODATA"; source.Tag = "POST3"; foreach(ValueModel value in GetPOSTData2<ValueModel>(url, source)) { Console.WriteLine("{0} {1} {2}", value.ID, value.Data.Length, value.Tag); } } #endregion #region GET 데이터 구하기 - GetGETData<TResultItem>(url) /// <summary> /// GET 데이터 구하기 /// </summary> /// <typeparam name="TResultItem">결과 항목 타입</typeparam> /// <param name="url">URL</param> /// <returns>결과 항목 열거 가능형</returns> private static IEnumerable<TResultItem> GetGETData<TResultItem>(string url) { HttpClient client = new HttpClient(); MediaTypeWithQualityHeaderValue headerValue = new MediaTypeWithQualityHeaderValue("application/json"); client.DefaultRequestHeaders.Accept.Add(headerValue); using(Stream stream = client.GetStreamAsync(url).Result) { using(StreamReader streamReader = new StreamReader(stream)) { JsonSerializer serializer = new JsonSerializer(); using(JsonTextReader jsonTextReader = new JsonTextReader(streamReader)) { while(jsonTextReader.Read()) { if(jsonTextReader.TokenType != JsonToken.StartArray && jsonTextReader.TokenType != JsonToken.EndArray) { yield return serializer.Deserialize<TResultItem>(jsonTextReader); } } } } } } #endregion #region GET 데이터 테스트하기 - TestGETData() /// <summary> /// GET 데이터 테스트하기 /// </summary> private static void TestGETData() { string url = "http://localhost:5569/api/test/getdata?tag=GET"; foreach(ValueModel value in GetGETData<ValueModel>(url)) { Console.WriteLine("{0} {1} {2}", value.ID, value.Data.Length, value.Tag); } } #endregion } } |
[TestServer 프로젝트]
▶ Controllers/TestController.cs
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using Microsoft.AspNetCore.Mvc; using System.Collections.Generic; using System.Linq; using System.Text; using TestLibrary; namespace TestServer.Controllers { /// <summary> /// 테스트 컨트롤러 /// </summary> [Route("api/[controller]")] public class TestController : Controller { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Static //////////////////////////////////////////////////////////////////////////////// Private #region Field /// <summary> /// 샘플 데이터 /// </summary> private static string _sampleData; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Static #region 생성자 - TestController() /// <summary> /// 생성자 /// </summary> static TestController() { StringBuilder stringBuilder = new StringBuilder(); for(int i = 0; i < 100; i++) { stringBuilder.Append("ABCDEFGHIJABCDEFGHIJ"); stringBuilder.Append("ABCDEFGHIJABCDEFGHIJ"); stringBuilder.Append("ABCDEFGHIJABCDEFGHIJ"); stringBuilder.Append("ABCDEFGHIJABCDEFGHIJ"); stringBuilder.Append("ABCDEFGHIJABCDEFGHIJ"); } _sampleData = stringBuilder.ToString(); } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Public #region GET 데이터 구하기 - GetData(tag) /// <summary> /// GET 데이터 구하기 /// </summary> /// <param name="tag">태그</param> /// <returns>값 열거 가능형</returns> [HttpGet] [Route("GetData")] public IEnumerable<ValueModel> GetData(string tag) { foreach(int i in Enumerable.Range(1, 1000000)) { yield return new ValueModel() { ID = i, Data = _sampleData, Tag = tag }; } } #endregion #region POST 데이터 구하기 - PostData(source) /// <summary> /// POST 데이터 구하기 /// </summary> /// <param name="source">소스 값</param> /// <returns>값 열거 가능형</returns> [HttpPost] [Route("PostData")] public IEnumerable<ValueModel> PostData([FromBody] ValueModel source) { foreach(int i in Enumerable.Range(1, 1000000)) { yield return new ValueModel() { ID = i, Data = _sampleData, Tag = source.Tag }; } } #endregion } } |
