如何在Windows Phone中使用Byte Array []发布图像 [英] How to Post Image using Byte Array[] in windows phone

问题描述

我试图将图像作为 byte 数组。
我已将图像转换为字节，现在我想将其发布到服务器。

  WriteableBitmap btmMap = new WriteableBitmap（bi）; 
 System.Windows.Media.Imaging.Extensions.SaveJpeg（btmMap，ms，200，200，0，100）; 
 result = ms.ToArray（）; 
  

如何执行 POST ？

解决方案

尝试以下代码：

  HttpClient httpClient = new HttpClient（）; 
 MultipartFormDataContent form = new MultipartFormDataContent（）; 
 
 var imageForm = new ByteArrayContent（result，0，result.Count（））; 
 imagenForm.Headers.ContentType = new MediaTypeHeaderValue（image / jpg）; 
 
 form.Add（imagenForm，image，nameholder.jpg）; 
 
 HttpResponseMessage response = await httpClient.PostAsync（URL_here，form）; 
 
 response.EnsureSuccessStatusCode（）; 
 string result = response.Content.ReadAsStringAsync（）。Result; 
 httpClient.Dispose（）; 
  

希望这篇帮助你了解如何将 byte arry传递给POST 加入API调用。

EDIT： $ p> HttpClient httpClient = new HttpClient（）;
MultipartFormDataContent form = new MultipartFormDataContent（）;

form.Add（new StringContent（UserID），UserID）;

var imageForm = new ByteArrayContent（result，0，result.Count（））;
imagenForm.Headers.ContentType = new MediaTypeHeaderValue（image / jpg）;

form.Add（imagenForm，image，nameholder.jpg）;

HttpResponseMessage response = await httpClient.PostAsync（URL_here，form）;

response.EnsureSuccessStatusCode（）;
string result = response.Content.ReadAsStringAsync（）。Result;
httpClient.Dispose（）;


I'm trying to post image as byte array. I have converted image to byte as using following code now I want to post it to server.

WriteableBitmap btmMap = new WriteableBitmap(bi);
System.Windows.Media.Imaging.Extensions.SaveJpeg(btmMap, ms, 200, 200, 0, 100);
result = ms.ToArray();

How can I now perform the POST action?

解决方案

Try below code:

HttpClient httpClient = new HttpClient();
MultipartFormDataContent form = new MultipartFormDataContent();

var imageForm = new ByteArrayContent(result, 0, result.Count());
imagenForm.Headers.ContentType = new MediaTypeHeaderValue("image/jpg");

form.Add(imagenForm, "image", "nameholder.jpg");

HttpResponseMessage response = await httpClient.PostAsync("URL_here", form);

response.EnsureSuccessStatusCode();
string result = response.Content.ReadAsStringAsync().Result;
httpClient.Dispose();

Hope this help's you to get idea about how to pass byte arry to POST into API call.

EDIT:

HttpClient httpClient = new HttpClient();
MultipartFormDataContent form = new MultipartFormDataContent();

form.Add(new StringContent(UserID), "UserID");

var imageForm = new ByteArrayContent(result, 0, result.Count());
imagenForm.Headers.ContentType = new MediaTypeHeaderValue("image/jpg");

form.Add(imagenForm, "image", "nameholder.jpg");

HttpResponseMessage response = await httpClient.PostAsync("URL_here", form);

response.EnsureSuccessStatusCode();
string result = response.Content.ReadAsStringAsync().Result;
httpClient.Dispose();

这篇关于如何在Windows Phone中使用Byte Array []发布图像的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！