我想尝试使用Web API进行休息调用，但我想让响应是存储在数据库中的实际二进制映像，而不是JSON base64编码字符串。任何人都有一些指针？
更新 – @H_502_3@这是我最后实现：
HttpResponseMessage result = new HttpResponseMessage(HttpStatusCode.OK);
result.Content = new StreamContent(new MemoryStream(profile.Avatar));
result.Content.Headers.ContentType = new MediaTypeHeaderValue("application/octet-stream");
result.Content.Headers.ContentDisposition = new ContentDispositionHeaderValue("attachment");
result.Content.Headers.ContentDisposition.FileName = "avatar.png";
return result;
解决方法
您可以将响应内容设置为StreamContent对象：
var fileStream = new FileStream(path,FileMode.Open);
var resp = new HttpResponseMessage()
{
Content = new StreamContent(fileStream)
};
// Find the MIME type
string mimeType = _extensions[Path.GetExtension(path)];
resp.Content.Headers.ContentType = new MediaTypeHeaderValue(mimeType);
