/// <summary>
/// 获取图片
/// </summary>
/// <param name="url"></param>
/// <returns></returns>
public static Image GetPicture(string url, string photoHead, int photoTail, string forecastFilesHead)
{
Image img;
try
{
ReqMeteoPic reqWavePic = new ReqMeteoPic();
reqWavePic.photoHead = photoHead;
reqWavePic.photoTail = photoTail;
reqWavePic.forecastFilesHead = forecastFilesHead;
HttpWebRequest req = WebRequest.CreateHttp(url);
req.Method = "POST";
req.ContentType = "application/json;charset=UTF-8";
string jsonStr = JsonConvert.SerializeObject(reqWavePic);
byte[] payload = Encoding.UTF8.GetBytes(jsonStr);
req.ContentLength = payload.Length;
Stream writer = req.GetRequestStream();
writer.Write(payload, 0, payload.Length);
writer.Close();
var response = req.GetResponse() as HttpWebResponse;
Stream stm = response.GetResponseStream();
img = Image.FromStream(stm);
stm.Close();
}
catch
{
return(null);
}
return(img);
}
//[Route("v1/file/{subpath}/{filename}")]
public async Task <HttpResponseMessage> MeteoPicture(ReqMeteoPic reqWavePic)
{
string stateStr = "";
try
{
string path = AppDomain.CurrentDomain.BaseDirectory + "\\DailyData\\Meteorological\\Pictures\\" + DateTime.Today.ToString("yyyyMMdd") + "\\" + reqWavePic.forecastFilesHead + "\\" + reqWavePic.photoHead + reqWavePic.photoTailStr() + ".png";
if (!File.Exists(path))
{
path = AppDomain.CurrentDomain.BaseDirectory + "NoPicture.png";
stateStr = path;
}
FileStream stream = new FileStream(path, FileMode.Open);
HttpResponseMessage resp = new HttpResponseMessage(HttpStatusCode.OK)
{
Content = new StreamContent(stream)
};
resp.Content.Headers.ContentDisposition = new ContentDispositionHeaderValue("attachment")
{
FileName = Path.GetFileName(path)
};
string contentType = MimeMapping.GetMimeMapping(path);
resp.Content.Headers.ContentType = new MediaTypeHeaderValue(contentType);
resp.Content.Headers.ContentLength = stream.Length;
return(await Task.FromResult(resp));
}
catch (Exception e)
{
CommonTools.WriteLog("获取图片异常：" + stateStr + "\r\n" + e.Message);
}
return(new HttpResponseMessage(HttpStatusCode.NoContent));
}